{"id":7165,"date":"2020-03-31T15:51:19","date_gmt":"2020-03-31T13:51:19","guid":{"rendered":"https:\/\/tzwl.de\/blog\/"},"modified":"2025-03-04T19:10:19","modified_gmt":"2025-03-04T18:10:19","slug":"blog","status":"publish","type":"page","link":"https:\/\/tzwl.de\/en\/blog\/","title":{"rendered":"Blog"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7165\" class=\"elementor elementor-7165 elementor-427\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-71d0890f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"71d0890f\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;shape_divider_bottom&quot;:&quot;mountains&quot;}\">\n\t\t\t\t\t<div class=\"elementor-shape elementor-shape-bottom\" aria-hidden=\"true\" data-negative=\"false\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewBox=\"0 0 1000 100\" preserveAspectRatio=\"none\">\n\t<path class=\"elementor-shape-fill\" opacity=\"0.33\" d=\"M473,67.3c-203.9,88.3-263.1-34-320.3,0C66,119.1,0,59.7,0,59.7V0h1000v59.7 c0,0-62.1,26.1-94.9,29.3c-32.8,3.3-62.8-12.3-75.8-22.1C806,49.6,745.3,8.7,694.9,4.7S492.4,59,473,67.3z\"\/>\n\t<path class=\"elementor-shape-fill\" opacity=\"0.66\" d=\"M734,67.3c-45.5,0-77.2-23.2-129.1-39.1c-28.6-8.7-150.3-10.1-254,39.1 s-91.7-34.4-149.2,0C115.7,118.3,0,39.8,0,39.8V0h1000v36.5c0,0-28.2-18.5-92.1-18.5C810.2,18.1,775.7,67.3,734,67.3z\"\/>\n\t<path class=\"elementor-shape-fill\" d=\"M766.1,28.9c-200-57.5-266,65.5-395.1,19.5C242,1.8,242,5.4,184.8,20.6C128,35.8,132.3,44.9,89.9,52.5C28.6,63.7,0,0,0,0 h1000c0,0-9.9,40.9-83.6,48.1S829.6,47,766.1,28.9z\"\/>\n<\/svg>\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-5d6472bd\" data-id=\"5d6472bd\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-32921158 elementor-widget elementor-widget-heading\" data-id=\"32921158\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">News &amp; insights<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7f8352e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7f8352e\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-wider\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0fc5dca\" data-id=\"0fc5dca\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d3c78a7 preserve-img-ratio-cover elementor-widget elementor-widget-the7_elements\" data-id=\"d3c78a7\" data-element_type=\"widget\" data-widget_type=\"the7_elements.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"portfolio-shortcode the7-elementor-widget the7_elements-d3c78a7 mode-grid dt-css-grid-wrap classic-layout-list description-under-image content-bg-on resize-by-browser-width widget-with-filter loading-effect-none enable-pagination-scroll jquery-filter\" data-padding=\"40px\" data-mobile-columns-num=\"1\" data-tablet-columns-num=\"2\" data-desktop-columns-num=\"3\" data-wide-desktop-columns-num=\"3\" data-post-limit=\"6\" data-pagination-mode=\"pages\" data-scroll-offset=\"0\" aria-live=\"assertive\"><div class=\"iso-filter filter-decorations css-grid-filter extras-off filter filter-pointer-underline filter-animation-fade show-filter-categories  \"><div class=\"filter-categories\" data-default-order=\"\" data-default-orderby=\"\"><a href=\"https:\/\/tzwl.de\/en\/blog\/\" class=\"show-all filter-item act\" data-filter=\"*\" aria-label=\"Apply filter: View all\">View all<\/a><a href=\"https:\/\/tzwl.de\/en\/blog\/?term=news-en\" class=\"filter-item news-en\" data-filter=\".category-93\" aria-label=\"Apply filter: News\">News<\/a><a href=\"https:\/\/tzwl.de\/en\/blog\/?term=nicht-kategorisiert\" class=\"filter-item nicht-kategorisiert\" data-filter=\".category-1\" aria-label=\"Apply filter: Nicht kategorisiert\">Nicht kategorisiert<\/a><a href=\"https:\/\/tzwl.de\/en\/blog\/?term=ventilation\" class=\"filter-item ventilation\" data-filter=\".category-99\" aria-label=\"Apply filter: Ventilation\">Ventilation<\/a><\/div><\/div><div class=\"dt-css-grid custom-pagination-handler\"><div class=\"visible wf-cell category-93\" data-post-id=\"7548\" data-date=\"2026-01-25T15:22:49+01:00\" data-name=\"TZWL focuses on continuity at general meeting\"><article class=\"post visible no-img post-7548 type-post status-publish format-standard hentry category-news-en\" data-name=\"TZWL focuses on continuity at general meeting\" data-date=\"2026-01-25T15:22:49+01:00\">\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/tzwl-focuses-on-continuity-at-general-meeting\/\" rel=\"bookmark\" title=\"TZWL focuses on continuity at general meeting\">TZWL focuses on continuity at general meeting<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2026\/01\/25\/\" title=\"15:22\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2026-01-25T15:22:49+01:00\">25. January 2026<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>TZWL held its general meeting on May 22 at its new premises in Schwerte.<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/tzwl-focuses-on-continuity-at-general-meeting\/\" target=\"\" aria-label=\"Read more about TZWL focuses on continuity at general meeting\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"visible wf-cell category-93\" data-post-id=\"7454\" data-date=\"2025-06-15T13:29:00+02:00\" data-name=\"TZWL focuses on continuity at general meeting\"><article class=\"post visible post-7454 type-post status-publish format-standard has-post-thumbnail hentry category-news-en\" data-name=\"TZWL focuses on continuity at general meeting\" data-date=\"2025-06-15T13:29:00+02:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/company-friday-at-the-tzwl\/\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1202\" height=\"600\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%201202%20600&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"Die Teilnehmer der Mitgliederversammlung des TZWL\" sizes=\"(max-width: 1202px) 100vw, 1202px\" style=\"--ratio: 1202 \/ 600;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2025\/06\/MV_2025.jpg\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2025\/06\/MV_2025.jpg 1202w, https:\/\/tzwl.de\/wp-content\/uploads\/2025\/06\/MV_2025-300x150.jpg 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2025\/06\/MV_2025-1024x511.jpg 1024w, https:\/\/tzwl.de\/wp-content\/uploads\/2025\/06\/MV_2025-768x383.jpg 768w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/company-friday-at-the-tzwl\/\" rel=\"bookmark\" title=\"TZWL focuses on continuity at general meeting\">TZWL focuses on continuity at general meeting<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2025\/06\/15\/\" title=\"13:29\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2025-06-15T13:29:00+02:00\">15. June 2025<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>TZWL held its general meeting on May 22 at its new premises in Schwerte.<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/company-friday-at-the-tzwl\/\" target=\"\" aria-label=\"Read more about TZWL focuses on continuity at general meeting\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"visible wf-cell category-1\" data-post-id=\"7146\" data-date=\"2025-03-04T19:08:06+01:00\" data-name=\"What are the regulations for domestic ventilation in the model building regulations?\"><article class=\"post visible post-7146 type-post status-publish format-standard has-post-thumbnail hentry category-nicht-kategorisiert\" data-name=\"What are the regulations for domestic ventilation in the model building regulations?\" data-date=\"2025-03-04T19:08:06+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/\" rel=\"bookmark\" title=\"What are the regulations for domestic ventilation in the model building regulations?\">What are the regulations for domestic ventilation in the model building regulations?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2025\/03\/04\/\" title=\"19:08\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2025-03-04T19:08:06+01:00\">4. March 2025<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>What are the regulations in the model building regulations? On June 1, 2017, the German Institute for Building Technology (DIBt) published the draft version of&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/\" target=\"\" aria-label=\"Read more about What are the regulations for domestic ventilation in the model building regulations?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"visible wf-cell category-1\" data-post-id=\"7132\" data-date=\"2025-03-04T19:08:05+01:00\" data-name=\"What key figures are determined when testing heat pumps?\"><article class=\"post visible post-7132 type-post status-publish format-standard has-post-thumbnail hentry category-nicht-kategorisiert\" data-name=\"What key figures are determined when testing heat pumps?\" data-date=\"2025-03-04T19:08:05+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/\" rel=\"bookmark\" title=\"What key figures are determined when testing heat pumps?\">What key figures are determined when testing heat pumps?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2025\/03\/04\/\" title=\"19:08\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2025-03-04T19:08:05+01:00\">4. March 2025<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>What key figures are determined when testing heat pumps? Manufacturers are increasingly taking advantage of the benefits of combining controlled domestic ventilation appliances and heat&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/\" target=\"\" aria-label=\"Read more about What key figures are determined when testing heat pumps?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"visible wf-cell category-1\" data-post-id=\"7129\" data-date=\"2025-03-04T19:08:05+01:00\" data-name=\"What key figures are determined during the DIBt L\u00fc-A 20 test?\"><article class=\"post visible post-7129 type-post status-publish format-standard has-post-thumbnail hentry category-nicht-kategorisiert\" data-name=\"What key figures are determined during the DIBt L\u00fc-A 20 test?\" data-date=\"2025-03-04T19:08:05+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/\" rel=\"bookmark\" title=\"What key figures are determined during the DIBt L\u00fc-A 20 test?\">What key figures are determined during the DIBt L\u00fc-A 20 test?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2025\/03\/04\/\" title=\"19:08\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2025-03-04T19:08:05+01:00\">4. March 2025<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>Which key figures are determined according to DIBt L\u00dc-A 20? The old test program of the German Institute for Building Technology (DIBt), L\u00dc-A 20, includes&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/\" target=\"\" aria-label=\"Read more about What key figures are determined during the DIBt L\u00fc-A 20 test?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"visible wf-cell category-93\" data-post-id=\"7089\" data-date=\"2025-02-17T18:15:59+01:00\" data-name=\"Company Friday at the TZWL\"><article class=\"post visible post-7089 type-post status-publish format-standard has-post-thumbnail hentry category-news-en\" data-name=\"Company Friday at the TZWL\" data-date=\"2025-02-17T18:15:59+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/company-friday-at-the-test-center-for-ventilation-units\/\"><img decoding=\"async\" width=\"1600\" height=\"800\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%201600%20800&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 1600px) 100vw, 1600px\" style=\"--ratio: 1600 \/ 800;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2025\/02\/banner-pm-firmenfreitag.jpg\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2025\/02\/banner-pm-firmenfreitag.jpg 1600w, https:\/\/tzwl.de\/wp-content\/uploads\/2025\/02\/banner-pm-firmenfreitag-300x150.jpg 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2025\/02\/banner-pm-firmenfreitag-1024x512.jpg 1024w, https:\/\/tzwl.de\/wp-content\/uploads\/2025\/02\/banner-pm-firmenfreitag-768x384.jpg 768w, https:\/\/tzwl.de\/wp-content\/uploads\/2025\/02\/banner-pm-firmenfreitag-1536x768.jpg 1536w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/company-friday-at-the-test-center-for-ventilation-units\/\" rel=\"bookmark\" title=\"Company Friday at the TZWL\">Company Friday at the TZWL<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2025\/02\/17\/\" title=\"18:15\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2025-02-17T18:15:59+01:00\">17. February 2025<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>Ruhr Nachrichten article about the Company Friday at TZWL, with a visit from the mayor of Schwerte.<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/company-friday-at-the-test-center-for-ventilation-units\/\" target=\"\" aria-label=\"Read more about Company Friday at the TZWL\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-93\" data-post-id=\"7088\" data-date=\"2024-03-29T13:17:52+01:00\" data-name=\"First eBulletin - list of domestic ventilation units - of the year 2024 published\"><article class=\"post visible no-img post-7088 type-post status-publish format-standard hentry category-news-en\" data-name=\"First eBulletin &#8211; list of domestic ventilation units &#8211; of the year 2024 published\" data-date=\"2024-03-29T13:17:52+01:00\">\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/first-ebulletin-of-the-year-2024-published\/\" rel=\"bookmark\" title=\"First eBulletin &#8211; list of domestic ventilation units &#8211; of the year 2024 published\">First eBulletin &#8211; list of domestic ventilation units &#8211; of the year 2024 published<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2024\/03\/29\/\" title=\"13:17\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2024-03-29T13:17:52+01:00\">29. March 2024<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>TZWL from Schwerte publishes current list of domestic ventilation units with and without heat recovery.<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/first-ebulletin-of-the-year-2024-published\/\" target=\"\" aria-label=\"Read more about First eBulletin &#8211; list of domestic ventilation units &#8211; of the year 2024 published\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-93\" data-post-id=\"7090\" data-date=\"2023-09-03T12:07:37+02:00\" data-name=\"TZWL begins relocation to modern facilities in Schwerte\"><article class=\"post visible post-7090 type-post status-publish format-standard has-post-thumbnail hentry category-news-en\" data-name=\"TZWL begins relocation to modern facilities in Schwerte\" data-date=\"2023-09-03T12:07:37+02:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/tzwl-begins-relocation-to-modern-site-in-schwerte\/\"><img decoding=\"async\" width=\"1200\" height=\"600\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%201200%20600&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 1200px) 100vw, 1200px\" style=\"--ratio: 1200 \/ 600;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2023\/09\/banner_umzug_personen.jpg\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2023\/09\/banner_umzug_personen.jpg 1200w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/09\/banner_umzug_personen-300x150.jpg 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/09\/banner_umzug_personen-1024x512.jpg 1024w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/09\/banner_umzug_personen-768x384.jpg 768w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/tzwl-begins-relocation-to-modern-site-in-schwerte\/\" rel=\"bookmark\" title=\"TZWL begins relocation to modern facilities in Schwerte\">TZWL begins relocation to modern facilities in Schwerte<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2023\/09\/03\/\" title=\"12:07\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2023-09-03T12:07:37+02:00\">3. September 2023<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>TZWL moves to the headquarters of Schrezenmaier K\u00e4ltetechnik in Schwerte to modernize its testing facilities<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/tzwl-begins-relocation-to-modern-site-in-schwerte\/\" target=\"\" aria-label=\"Read more about TZWL begins relocation to modern facilities in Schwerte\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-93\" data-post-id=\"7098\" data-date=\"2023-08-02T17:03:27+02:00\" data-name=\"12th Residential Ventilation Forum - HEA and the Federal Environment Agency invite to a joint expert forum\"><article class=\"post visible post-7098 type-post status-publish format-standard has-post-thumbnail hentry category-news-en\" data-name=\"12th Residential Ventilation Forum &#8211; HEA and the Federal Environment Agency invite to a joint expert forum\" data-date=\"2023-08-02T17:03:27+02:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/12th-residential-ventilation-forum-hea-and-the-federal-environment-agency-invite-you-to-a-joint-expert-forum\/\"><img decoding=\"async\" width=\"1200\" height=\"600\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%201200%20600&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 1200px) 100vw, 1200px\" style=\"--ratio: 1200 \/ 600;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2023\/08\/banner-hea-forum-wohnungslueftung.jpg\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2023\/08\/banner-hea-forum-wohnungslueftung.jpg 1200w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/08\/banner-hea-forum-wohnungslueftung-300x150.jpg 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/08\/banner-hea-forum-wohnungslueftung-1024x512.jpg 1024w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/08\/banner-hea-forum-wohnungslueftung-768x384.jpg 768w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/12th-residential-ventilation-forum-hea-and-the-federal-environment-agency-invite-you-to-a-joint-expert-forum\/\" rel=\"bookmark\" title=\"12th Residential Ventilation Forum &#8211; HEA and the Federal Environment Agency invite to a joint expert forum\">12th Residential Ventilation Forum &#8211; HEA and the Federal Environment Agency invite to a joint expert forum<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2023\/08\/02\/\" title=\"17:03\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2023-08-02T17:03:27+02:00\">2. August 2023<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>12th Residential Ventilation Forum &#8211; The joint expert forum of the HEA and the Federal Environment Agency on November 21, 2023 will focus on the&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/12th-residential-ventilation-forum-hea-and-the-federal-environment-agency-invite-you-to-a-joint-expert-forum\/\" target=\"\" aria-label=\"Read more about 12th Residential Ventilation Forum &#8211; HEA and the Federal Environment Agency invite to a joint expert forum\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-93\" data-post-id=\"7105\" data-date=\"2023-07-26T18:01:22+02:00\" data-name=\"TZWL renews its test benches with the help of progres.NRW funding\"><article class=\"post visible post-7105 type-post status-publish format-standard has-post-thumbnail hentry category-news-en tag-home-ventilation tag-test-stands tag-tzwl-en\" data-name=\"TZWL renews its test benches with the help of progres.NRW funding\" data-date=\"2023-07-26T18:01:22+02:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/tzwl-renews-its-test-benches-with-the-help-of-progres-nrw-funding\/\"><img decoding=\"async\" width=\"1200\" height=\"600\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%201200%20600&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 1200px) 100vw, 1200px\" style=\"--ratio: 1200 \/ 600;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2023\/07\/Lueftungstechnischer_Pruefstand_TZWL.jpg\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2023\/07\/Lueftungstechnischer_Pruefstand_TZWL.jpg 1200w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/07\/Lueftungstechnischer_Pruefstand_TZWL-300x150.jpg 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/07\/Lueftungstechnischer_Pruefstand_TZWL-1024x512.jpg 1024w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/07\/Lueftungstechnischer_Pruefstand_TZWL-768x384.jpg 768w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/tzwl-renews-its-test-benches-with-the-help-of-progres-nrw-funding\/\" rel=\"bookmark\" title=\"TZWL renews its test benches with the help of progres.NRW funding\">TZWL renews its test benches with the help of progres.NRW funding<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2023\/07\/26\/\" title=\"18:01\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2023-07-26T18:01:22+02:00\">26. July 2023<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>The European Test Centre for Residential Ventilation Units (TZWL) e. V. has built a new test stand for measuring ventilation units for leaks and modernized&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/tzwl-renews-its-test-benches-with-the-help-of-progres-nrw-funding\/\" target=\"\" aria-label=\"Read more about TZWL renews its test benches with the help of progres.NRW funding\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-93\" data-post-id=\"7087\" data-date=\"2023-03-14T18:57:25+01:00\" data-name=\"Shutdown of the Dortmund weather station\"><article class=\"post visible post-7087 type-post status-publish format-standard has-post-thumbnail hentry category-news-en\" data-name=\"Shutdown of the Dortmund weather station\" data-date=\"2023-03-14T18:57:25+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/shutdown-of-the-dortmund-weather-station\/\"><img decoding=\"async\" width=\"1200\" height=\"597\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%201200%20597&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 1200px) 100vw, 1200px\" style=\"--ratio: 1200 \/ 597;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2023\/03\/wetterstation.jpg\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2023\/03\/wetterstation.jpg 1200w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/03\/wetterstation-300x149.jpg 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/03\/wetterstation-1024x509.jpg 1024w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/03\/wetterstation-768x382.jpg 768w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/shutdown-of-the-dortmund-weather-station\/\" rel=\"bookmark\" title=\"Shutdown of the Dortmund weather station\">Shutdown of the Dortmund weather station<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2023\/03\/14\/\" title=\"18:57\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2023-03-14T18:57:25+01:00\">14. March 2023<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>Over the past few years, the Dortmund weather station on the roof of our office building has been measuring temperature, wind speed, rainfall and other&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/shutdown-of-the-dortmund-weather-station\/\" target=\"\" aria-label=\"Read more about Shutdown of the Dortmund weather station\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-93\" data-post-id=\"7100\" data-date=\"2023-03-05T17:31:41+01:00\" data-name=\"TZWL visits the ISH Frankfurt\"><article class=\"post visible post-7100 type-post status-publish format-standard has-post-thumbnail hentry category-news-en\" data-name=\"TZWL visits the ISH Frankfurt\" data-date=\"2023-03-05T17:31:41+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/tzwl-visits-the-ish-frankfurt\/\"><img decoding=\"async\" width=\"1000\" height=\"667\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%201000%20667&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 1000px) 100vw, 1000px\" style=\"--ratio: 1000 \/ 667;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2023\/03\/messe-frankfurt.jpg\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2023\/03\/messe-frankfurt.jpg 1000w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/03\/messe-frankfurt-300x200.jpg 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2023\/03\/messe-frankfurt-768x512.jpg 768w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/tzwl-visits-the-ish-frankfurt\/\" rel=\"bookmark\" title=\"TZWL visits the ISH Frankfurt\">TZWL visits the ISH Frankfurt<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2023\/03\/05\/\" title=\"17:31\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2023-03-05T17:31:41+01:00\">5. March 2023<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>We would like to inform you that our company will be temporarily closed from March 13 to 17 due to our visit to ISH Frankfurt,&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/tzwl-visits-the-ish-frankfurt\/\" target=\"\" aria-label=\"Read more about TZWL visits the ISH Frankfurt\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-99\" data-post-id=\"7108\" data-date=\"2022-02-04T23:00:27+01:00\" data-name=\"Why do I need to ventilate?\"><article class=\"post visible post-7108 type-post status-publish format-standard has-post-thumbnail hentry category-ventilation\" data-name=\"Why do I need to ventilate?\" data-date=\"2022-02-04T23:00:27+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/why-do-i-need-to-ventilate\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/why-do-i-need-to-ventilate\/\" rel=\"bookmark\" title=\"Why do I need to ventilate?\">Why do I need to ventilate?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2022\/02\/04\/\" title=\"23:00\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2022-02-04T23:00:27+01:00\">4. February 2022<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>Why do I need to ventilate? Ventilation is essential to remove unwanted airborne substances such as water vapor, pollutants, fine dust and odors. Ventilation for&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/why-do-i-need-to-ventilate\/\" target=\"\" aria-label=\"Read more about Why do I need to ventilate?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-99\" data-post-id=\"7114\" data-date=\"2022-02-04T22:00:37+01:00\" data-name=\"Why do I need a domestic ventilation system?\"><article class=\"post visible post-7114 type-post status-publish format-standard has-post-thumbnail hentry category-ventilation\" data-name=\"Why do I need a domestic ventilation system?\" data-date=\"2022-02-04T22:00:37+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/why-do-i-need-a-domestic-ventilation-system\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/why-do-i-need-a-domestic-ventilation-system\/\" rel=\"bookmark\" title=\"Why do I need a domestic ventilation system?\">Why do I need a domestic ventilation system?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2022\/02\/04\/\" title=\"22:00\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2022-02-04T22:00:37+01:00\">4. February 2022<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>Why do I need a domestic ventilation system? The use of a domestic ventilation system with heat recovery ensures fresh and healthy indoor air and&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/why-do-i-need-a-domestic-ventilation-system\/\" target=\"\" aria-label=\"Read more about Why do I need a domestic ventilation system?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-99\" data-post-id=\"7111\" data-date=\"2022-02-04T21:00:45+01:00\" data-name=\"How expensive is a domestic ventilation system?\"><article class=\"post visible post-7111 type-post status-publish format-standard has-post-thumbnail hentry category-ventilation\" data-name=\"How expensive is a domestic ventilation system?\" data-date=\"2022-02-04T21:00:45+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/how-expensive-is-a-domestic-ventilation-system\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/how-expensive-is-a-domestic-ventilation-system\/\" rel=\"bookmark\" title=\"How expensive is a domestic ventilation system?\">How expensive is a domestic ventilation system?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2022\/02\/04\/\" title=\"21:00\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2022-02-04T21:00:45+01:00\">4. February 2022<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>How expensive is a domestic ventilation system? A ventilation unit costs between \u20ac800 and \u20ac8,000, depending on performance and efficiency. In addition, depending on the&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/how-expensive-is-a-domestic-ventilation-system\/\" target=\"\" aria-label=\"Read more about How expensive is a domestic ventilation system?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-99\" data-post-id=\"7117\" data-date=\"2022-02-04T20:00:21+01:00\" data-name=\"When does a home ventilation system pay off?\"><article class=\"post visible post-7117 type-post status-publish format-standard has-post-thumbnail hentry category-ventilation\" data-name=\"When does a home ventilation system pay off?\" data-date=\"2022-02-04T20:00:21+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/when-does-a-home-ventilation-system-pay-off\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/when-does-a-home-ventilation-system-pay-off\/\" rel=\"bookmark\" title=\"When does a home ventilation system pay off?\">When does a home ventilation system pay off?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2022\/02\/04\/\" title=\"20:00\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2022-02-04T20:00:21+01:00\">4. February 2022<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>When does a home ventilation system pay off? As a rule, a ventilation system has a minimum service life of 20 years and pays for&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/when-does-a-home-ventilation-system-pay-off\/\" target=\"\" aria-label=\"Read more about When does a home ventilation system pay off?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-99\" data-post-id=\"7118\" data-date=\"2022-02-04T19:00:04+01:00\" data-name=\"What maintenance must be carried out on a domestic ventilation system?\"><article class=\"post visible post-7118 type-post status-publish format-standard has-post-thumbnail hentry category-ventilation\" data-name=\"What maintenance must be carried out on a domestic ventilation system?\" data-date=\"2022-02-04T19:00:04+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/what-maintenance-must-be-carried-out-on-a-domestic-ventilation-system\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/what-maintenance-must-be-carried-out-on-a-domestic-ventilation-system\/\" rel=\"bookmark\" title=\"What maintenance must be carried out on a domestic ventilation system?\">What maintenance must be carried out on a domestic ventilation system?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2022\/02\/04\/\" title=\"19:00\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2022-02-04T19:00:04+01:00\">4. February 2022<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>How do I maintain a domestic ventilation system? A domestic ventilation system should be adjusted, maintained and cleaned at least once a year by yourself&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/what-maintenance-must-be-carried-out-on-a-domestic-ventilation-system\/\" target=\"\" aria-label=\"Read more about What maintenance must be carried out on a domestic ventilation system?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-99\" data-post-id=\"7121\" data-date=\"2022-02-04T18:00:42+01:00\" data-name=\"What directives does the EU issue for domestic ventilation?\"><article class=\"post visible post-7121 type-post status-publish format-standard has-post-thumbnail hentry category-ventilation\" data-name=\"What directives does the EU issue for domestic ventilation?\" data-date=\"2022-02-04T18:00:42+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/what-directives-does-the-eu-issue-for-domestic-ventilation\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/what-directives-does-the-eu-issue-for-domestic-ventilation\/\" rel=\"bookmark\" title=\"What directives does the EU issue for domestic ventilation?\">What directives does the EU issue for domestic ventilation?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2022\/02\/04\/\" title=\"18:00\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2022-02-04T18:00:42+01:00\">4. February 2022<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>What directives does the EU issue for domestic ventilation? With the EcoDesign Directive, the European Union sets standards for the energy efficiency of domestic ventilation&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/what-directives-does-the-eu-issue-for-domestic-ventilation\/\" target=\"\" aria-label=\"Read more about What directives does the EU issue for domestic ventilation?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-99\" data-post-id=\"7156\" data-date=\"2022-02-04T17:00:20+01:00\" data-name=\"What are the current rules according to the EU EcoDesign Directive?\"><article class=\"post visible post-7156 type-post status-publish format-standard has-post-thumbnail hentry category-ventilation\" data-name=\"What are the current rules according to the EU EcoDesign Directive?\" data-date=\"2022-02-04T17:00:20+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/what-are-the-current-rules-according-to-the-eu-ecodesign-directive\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/what-are-the-current-rules-according-to-the-eu-ecodesign-directive\/\" rel=\"bookmark\" title=\"What are the current rules according to the EU EcoDesign Directive?\">What are the current rules according to the EU EcoDesign Directive?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2022\/02\/04\/\" title=\"17:00\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2022-02-04T17:00:20+01:00\">4. February 2022<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>What rules does the EU EcoDesign Directive lay down? Since 2016, the EU has been regulating the basic requirements for domestic ventilation units in its&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/what-are-the-current-rules-according-to-the-eu-ecodesign-directive\/\" target=\"\" aria-label=\"Read more about What are the current rules according to the EU EcoDesign Directive?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-99\" data-post-id=\"7126\" data-date=\"2022-02-04T15:26:04+01:00\" data-name=\"How does NRW implement the model building regulations with regard to home ventilation?\"><article class=\"post visible post-7126 type-post status-publish format-standard has-post-thumbnail hentry category-ventilation\" data-name=\"How does NRW implement the model building regulations with regard to home ventilation?\" data-date=\"2022-02-04T15:26:04+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/how-does-nrw-implement-the-model-building-regulations-with-regard-to-home-ventilation\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/how-does-nrw-implement-the-model-building-regulations-with-regard-to-home-ventilation\/\" rel=\"bookmark\" title=\"How does NRW implement the model building regulations with regard to home ventilation?\">How does NRW implement the model building regulations with regard to home ventilation?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2022\/02\/04\/\" title=\"15:26\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2022-02-04T15:26:04+01:00\">4. February 2022<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>How does NRW implement the model building regulations? The updated state building regulations for the state of North Rhine-Westphalia, BauO NRW, were published at the&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/how-does-nrw-implement-the-model-building-regulations-with-regard-to-home-ventilation\/\" target=\"\" aria-label=\"Read more about How does NRW implement the model building regulations with regard to home ventilation?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-99\" data-post-id=\"7135\" data-date=\"2022-02-04T14:05:50+01:00\" data-name=\"What appliance classes are there for domestic ventilation appliances?\"><article class=\"post visible post-7135 type-post status-publish format-standard has-post-thumbnail hentry category-ventilation\" data-name=\"What appliance classes are there for domestic ventilation appliances?\" data-date=\"2022-02-04T14:05:50+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/what-appliance-classes-are-there-for-domestic-ventilation-appliances\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/what-appliance-classes-are-there-for-domestic-ventilation-appliances\/\" rel=\"bookmark\" title=\"What appliance classes are there for domestic ventilation appliances?\">What appliance classes are there for domestic ventilation appliances?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2022\/02\/04\/\" title=\"14:05\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2022-02-04T14:05:50+01:00\">4. February 2022<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>What classes are there for ventilation units? There are a variety of systems for controlled domestic ventilation. These include pure supply or exhaust air systems&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/what-appliance-classes-are-there-for-domestic-ventilation-appliances\/\" target=\"\" aria-label=\"Read more about What appliance classes are there for domestic ventilation appliances?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-99\" data-post-id=\"7143\" data-date=\"2022-02-04T12:05:11+01:00\" data-name=\"Which key figures are determined during tests in accordance with EN 13141 and DIBt L\u00dc-A 21?\"><article class=\"post visible post-7143 type-post status-publish format-standard has-post-thumbnail hentry category-ventilation\" data-name=\"Which key figures are determined during tests in accordance with EN 13141 and DIBt L\u00dc-A 21?\" data-date=\"2022-02-04T12:05:11+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/which-key-figures-are-determined-during-tests-in-accordance-with-en-13141-and-dibt-lu-a-21\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/which-key-figures-are-determined-during-tests-in-accordance-with-en-13141-and-dibt-lu-a-21\/\" rel=\"bookmark\" title=\"Which key figures are determined during tests in accordance with EN 13141 and DIBt L\u00dc-A 21?\">Which key figures are determined during tests in accordance with EN 13141 and DIBt L\u00dc-A 21?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2022\/02\/04\/\" title=\"12:05\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2022-02-04T12:05:11+01:00\">4. February 2022<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>Which key figures are determined according to EN 13141 \/ DIBt L\u00dc-A 21? The European test standard EN 13141 provides specifications for testing the tightness,&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/which-key-figures-are-determined-during-tests-in-accordance-with-en-13141-and-dibt-lu-a-21\/\" target=\"\" aria-label=\"Read more about Which key figures are determined during tests in accordance with EN 13141 and DIBt L\u00dc-A 21?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-99\" data-post-id=\"7138\" data-date=\"2022-02-04T10:28:48+01:00\" data-name=\"What key figures are determined during PHI tests of domestic ventilation units?\"><article class=\"post visible post-7138 type-post status-publish format-standard has-post-thumbnail hentry category-ventilation\" data-name=\"What key figures are determined during PHI tests of domestic ventilation units?\" data-date=\"2022-02-04T10:28:48+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/what-key-figures-are-determined-during-phi-tests-of-domestic-ventilation-units\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/what-key-figures-are-determined-during-phi-tests-of-domestic-ventilation-units\/\" rel=\"bookmark\" title=\"What key figures are determined during PHI tests of domestic ventilation units?\">What key figures are determined during PHI tests of domestic ventilation units?<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2022\/02\/04\/\" title=\"10:28\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2022-02-04T10:28:48+01:00\">4. February 2022<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>Which key figures are determined according to PHI? The Passive House Institute has its own specifications for testing controlled domestic ventilation units, which form the&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/what-key-figures-are-determined-during-phi-tests-of-domestic-ventilation-units\/\" target=\"\" aria-label=\"Read more about What key figures are determined during PHI tests of domestic ventilation units?\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-1\" data-post-id=\"7149\" data-date=\"2021-12-11T14:55:45+01:00\" data-name=\"Example contribution with subsidies navigation on the left\"><article class=\"post visible post-7149 type-post status-publish format-standard has-post-thumbnail hentry category-nicht-kategorisiert\" data-name=\"Example contribution with subsidies navigation on the left\" data-date=\"2021-12-11T14:55:45+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/example-contribution-with-subsidies-navigation-on-the-left\/\"><img decoding=\"async\" width=\"400\" height=\"219\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20400%20219&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 400px) 100vw, 400px\" style=\"--ratio: 400 \/ 219;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten.png 400w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/neuigkeiten-300x164.png 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/example-contribution-with-subsidies-navigation-on-the-left\/\" rel=\"bookmark\" title=\"Example contribution with subsidies navigation on the left\">Example contribution with subsidies navigation on the left<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2021\/12\/11\/\" title=\"14:55\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2021-12-11T14:55:45+01:00\">11. December 2021<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>Promotion of domestic ventilation in NRW continues in 2021 Ventilation is essential to remove unwanted airborne substances such as water vapor, pollutants, fine dust and&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/example-contribution-with-subsidies-navigation-on-the-left\/\" target=\"\" aria-label=\"Read more about Example contribution with subsidies navigation on the left\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-93\" data-post-id=\"7137\" data-date=\"2020-11-20T14:24:00+01:00\" data-name=\"New test stand for carrying out ventilation measurements\"><article class=\"post visible post-7137 type-post status-publish format-standard has-post-thumbnail hentry category-news-en\" data-name=\"New test stand for carrying out ventilation measurements\" data-date=\"2020-11-20T14:24:00+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/new-test-stand-for-carrying-out-ventilation-measurements\/\"><img decoding=\"async\" width=\"1200\" height=\"600\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%201200%20600&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 1200px) 100vw, 1200px\" style=\"--ratio: 1200 \/ 600;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/pruefstand-lueftungstechnik.jpg\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/pruefstand-lueftungstechnik.jpg 1200w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/pruefstand-lueftungstechnik-300x150.jpg 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/pruefstand-lueftungstechnik-1024x512.jpg 1024w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/pruefstand-lueftungstechnik-768x384.jpg 768w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/new-test-stand-for-carrying-out-ventilation-measurements\/\" rel=\"bookmark\" title=\"New test stand for carrying out ventilation measurements\">New test stand for carrying out ventilation measurements<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2020\/11\/20\/\" title=\"14:24\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2020-11-20T14:24:00+01:00\">20. November 2020<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>The reorganization process decided by the members has begun with the help of funding from progres.nrw TZWL entered the business field of testing (residential) ventilation&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/new-test-stand-for-carrying-out-ventilation-measurements\/\" target=\"\" aria-label=\"Read more about New test stand for carrying out ventilation measurements\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-93\" data-post-id=\"7153\" data-date=\"2017-11-03T14:36:00+01:00\" data-name=\"Air hygiene tests for domestic ventilation units\"><article class=\"post visible post-7153 type-post status-publish format-standard has-post-thumbnail hentry category-news-en\" data-name=\"Air hygiene tests for domestic ventilation units\" data-date=\"2017-11-03T14:36:00+01:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/air-hygiene-tests-for-domestic-ventilation-units\/\"><img decoding=\"async\" width=\"700\" height=\"505\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20700%20505&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 700px) 100vw, 700px\" style=\"--ratio: 700 \/ 505;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/Foto_Kooperation_web.jpg\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/Foto_Kooperation_web.jpg 700w, https:\/\/tzwl.de\/wp-content\/uploads\/2021\/12\/Foto_Kooperation_web-300x216.jpg 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/air-hygiene-tests-for-domestic-ventilation-units\/\" rel=\"bookmark\" title=\"Air hygiene tests for domestic ventilation units\">Air hygiene tests for domestic ventilation units<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2017\/11\/03\/\" title=\"14:36\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2017-11-03T14:36:00+01:00\">3. November 2017<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>The cooperation between TZWL and DMT enables manufacturers of ventilation units to commission air hygiene tests via TZWL. Dr. Dirk Renschen, Head of Product Testing&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/air-hygiene-tests-for-domestic-ventilation-units\/\" target=\"\" aria-label=\"Read more about Air hygiene tests for domestic ventilation units\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-93\" data-post-id=\"7159\" data-date=\"2017-06-10T14:28:00+02:00\" data-name=\"Open letter: Model Administrative Regulation Technical Building Regulations\"><article class=\"post visible no-img post-7159 type-post status-publish format-standard hentry category-news-en\" data-name=\"Open letter: Model Administrative Regulation Technical Building Regulations\" data-date=\"2017-06-10T14:28:00+02:00\">\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/open-letter-model-administrative-regulation-technical-building-regulations\/\" rel=\"bookmark\" title=\"Open letter: Model Administrative Regulation Technical Building Regulations\">Open letter: Model Administrative Regulation Technical Building Regulations<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2017\/06\/10\/\" title=\"14:28\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2017-06-10T14:28:00+02:00\">10. June 2017<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>On June 1, 2017, the &gt;&gt; German Institute for Building Technology (DIBt) published the draft version of the updated &gt;&gt; Model Administrative Regulation for Technical&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/open-letter-model-administrative-regulation-technical-building-regulations\/\" target=\"\" aria-label=\"Read more about Open letter: Model Administrative Regulation Technical Building Regulations\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><div class=\"hidden wf-cell category-93\" data-post-id=\"7162\" data-date=\"2017-05-17T13:37:00+02:00\" data-name=\"Dr. Meinolf Gringel is Vice President of the ZVKKW\"><article class=\"post visible post-7162 type-post status-publish format-standard has-post-thumbnail hentry category-news-en\" data-name=\"Dr. Meinolf Gringel is Vice President of the ZVKKW\" data-date=\"2017-05-17T13:37:00+02:00\">\n\n\t<div class=\"post-thumbnail-wrap\">\n\t\t<div class=\"post-thumbnail\">\n\n\t\t\t<a class=\"post-thumbnail-rollover layzr-bg img-css-resize-wrapper\" aria-label=\"Post image\" href=\"https:\/\/tzwl.de\/en\/dr-meinolf-gringel-is-vice-president-of-the-zvkkw\/\"><img decoding=\"async\" width=\"500\" height=\"324\" src=\"data:image\/svg+xml,%3Csvg%20xmlns%3D&#039;http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg&#039;%20viewBox%3D&#039;0%200%20500%20324&#039;%2F%3E\" class=\"attachment-full size-full preload-me aspect lazy lazy-load\" alt=\"\" sizes=\"(max-width: 500px) 100vw, 500px\" style=\"--ratio: 500 \/ 324;\" data-src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2020\/04\/ZVKKW-Prasidium2017_500.jpg\" loading=\"eager\" data-srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2020\/04\/ZVKKW-Prasidium2017_500.jpg 500w, https:\/\/tzwl.de\/wp-content\/uploads\/2020\/04\/ZVKKW-Prasidium2017_500-300x194.jpg 300w\" \/><span class=\"the7-hover-icon\"><i aria-hidden=\"true\" class=\"fas fa-book-open\"><\/i><\/span><\/a>\n\t\t<\/div>\n\t<\/div>\n\n\n<div class=\"post-entry-content\">\n\n\t<h3 class=\"ele-entry-title\"><a href=\"https:\/\/tzwl.de\/en\/dr-meinolf-gringel-is-vice-president-of-the-zvkkw\/\" rel=\"bookmark\" title=\"Dr. Meinolf Gringel is Vice President of the ZVKKW\">Dr. Meinolf Gringel is Vice President of the ZVKKW<\/a><\/h3><div class=\"entry-meta\"><a href=\"https:\/\/tzwl.de\/en\/2017\/05\/17\/\" title=\"13:37\" class=\"meta-item data-link\" rel=\"bookmark\"><time class=\"entry-date updated\" datetime=\"2017-05-17T13:37:00+02:00\">17. May 2017<\/time><\/a><\/div><div class=\"entry-excerpt\"><p>At its Annual General Meeting on 16 May 2017, the German Refrigeration, Air Conditioning and Heat Pump Association (ZVKKW) elected TZWL CEO Dr. Meinolf Gringel&hellip;<\/p>\n<\/div><a href=\"https:\/\/tzwl.de\/en\/dr-meinolf-gringel-is-vice-president-of-the-zvkkw\/\" target=\"\" aria-label=\"Read more about Dr. Meinolf Gringel is Vice President of the ZVKKW\" class=\"box-button elementor-button elementor-size-xs\">Read article<\/a>\n<\/div><\/article><\/div><\/div><!-- iso-container|iso-grid --><div class=\"paginator filter-decorations filter-pointer-underline filter-animation-fade\" role=\"navigation\"><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>News &amp; insights<\/p>\n","protected":false},"author":1,"featured_media":6870,"parent":0,"menu_order":60,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-7165","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/pages\/7165","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/comments?post=7165"}],"version-history":[{"count":2,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/pages\/7165\/revisions"}],"predecessor-version":[{"id":7167,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/pages\/7165\/revisions\/7167"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/media\/6870"}],"wp:attachment":[{"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/media?parent=7165"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}