{"id":7135,"date":"2022-02-04T14:05:50","date_gmt":"2022-02-04T13:05:50","guid":{"rendered":"https:\/\/tzwl.de\/what-appliance-classes-are-there-for-domestic-ventilation-appliances\/"},"modified":"2025-03-04T19:08:06","modified_gmt":"2025-03-04T18:08:06","slug":"what-appliance-classes-are-there-for-domestic-ventilation-appliances","status":"publish","type":"post","link":"https:\/\/tzwl.de\/en\/what-appliance-classes-are-there-for-domestic-ventilation-appliances\/","title":{"rendered":"What appliance classes are there for domestic ventilation appliances?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"7135\" class=\"elementor elementor-7135 elementor-4974\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-18950e6d elementor-section-full_width elementor-section-height-min-height elementor-section-items-bottom elementor-section-height-default\" data-id=\"18950e6d\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1a9319cf\" data-id=\"1a9319cf\" data-element_type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-22eae56d elementor-widget elementor-widget-heading\" data-id=\"22eae56d\" 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<h1 class=\"elementor-heading-title elementor-size-default\">What classes are there for ventilation units?<\/h1>\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-f476cea elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f476cea\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-c2d51f8\" data-id=\"c2d51f8\" 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-a765ad9 elementor-widget elementor-widget-text-editor\" data-id=\"a765ad9\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>There are a variety of systems for controlled domestic ventilation. These include pure supply or exhaust air systems without heat recovery, as well as supply\/exhaust air systems with and without heat recovery. There are also controlled domestic ventilation systems in combination with various heat pump systems.  <\/p>\t\t\t\t\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-283777a elementor-section-content-middle elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"283777a\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\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-50 elementor-top-column elementor-element elementor-element-edc1dcf\" data-id=\"edc1dcf\" 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-cb12cf0 elementor-widget elementor-widget-spacer\" data-id=\"cb12cf0\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-bb1c6dd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bb1c6dd\" data-element_type=\"section\" data-settings=\"{&quot;sticky&quot;:&quot;top&quot;,&quot;sticky_offset&quot;:110,&quot;sticky_on&quot;:[&quot;desktop&quot;],&quot;sticky_effects_offset&quot;:0,&quot;sticky_anchor_link_offset&quot;:0}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-077e000\" data-id=\"077e000\" 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-29a4ab3 elementor-widget elementor-widget-heading\" data-id=\"29a4ab3\" 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<div class=\"elementor-heading-title elementor-size-default\"><a href=\"#ueberschrift1\">Supply air systems<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-563669c elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"563669c\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ad3b530 elementor-widget elementor-widget-spacer\" data-id=\"ad3b530\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36b3938 elementor-widget elementor-widget-heading\" data-id=\"36b3938\" 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<div class=\"elementor-heading-title elementor-size-default\"><a href=\"#ueberschrift2\">Exhaust air systems<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1288a33 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"1288a33\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1aee790 elementor-widget elementor-widget-spacer\" data-id=\"1aee790\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-481e158 elementor-widget elementor-widget-heading\" data-id=\"481e158\" 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<div class=\"elementor-heading-title elementor-size-default\"><a href=\"#ueberschrift3\">Central supply\/exhaust air systems<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2312371 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"2312371\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c06ecf5 elementor-widget elementor-widget-spacer\" data-id=\"c06ecf5\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-22e1794 elementor-widget elementor-widget-heading\" data-id=\"22e1794\" 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<div class=\"elementor-heading-title elementor-size-default\"><a href=\"#ueberschrift4\">Decentralized supply\/exhaust air systems<\/a><\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bc4bc52 elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"bc4bc52\" data-element_type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\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\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-17c404c\" data-id=\"17c404c\" 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-54eb497 elementor-widget elementor-widget-menu-anchor\" data-id=\"54eb497\" data-element_type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"headline1\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ccb9aca elementor-widget elementor-widget-heading\" data-id=\"ccb9aca\" 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\">Supply air systems<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d42f045 elementor-widget elementor-widget-spacer\" data-id=\"d42f045\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6698fb3 elementor-widget elementor-widget-text-editor\" data-id=\"6698fb3\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Supply air systems convey outside air to the interior as supply air via fans. The resulting overpressure in the living space, in combination with leaks in the building envelope, ensures increased natural exhaust air. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-11247a7 elementor-widget elementor-widget-spacer\" data-id=\"11247a7\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74fb234 elementor-widget elementor-widget-image\" data-id=\"74fb234\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"110\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_Z1-300x110.png\" class=\"attachment-medium size-medium wp-image-6927\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_Z1-300x110.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_Z1.png 524w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d9398cf elementor-widget elementor-widget-spacer\" data-id=\"d9398cf\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e0af1a5 elementor-widget elementor-widget-text-editor\" data-id=\"e0af1a5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Z1 &#8211; Supply air system, central ventilation unit, without heat recovery<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-04f3165 elementor-widget elementor-widget-spacer\" data-id=\"04f3165\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8e38eb6 elementor-widget elementor-widget-image\" data-id=\"8e38eb6\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"110\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_Z2-300x110.png\" class=\"attachment-medium size-medium wp-image-6928\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_Z2-300x110.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_Z2.png 524w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bba350c elementor-widget elementor-widget-spacer\" data-id=\"bba350c\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b10d851 elementor-widget elementor-widget-text-editor\" data-id=\"b10d851\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Z2 &#8211; Supply air system, single room decentralized, without heat recovery<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20a466f elementor-widget elementor-widget-spacer\" data-id=\"20a466f\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f395d01 elementor-widget elementor-widget-menu-anchor\" data-id=\"f395d01\" data-element_type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"headline2\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8044c17 elementor-widget elementor-widget-heading\" data-id=\"8044c17\" 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\">Exhaust air systems<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f9dbd02 elementor-widget elementor-widget-spacer\" data-id=\"f9dbd02\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2bbc39a elementor-widget elementor-widget-text-editor\" data-id=\"2bbc39a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Exhaust air systems use fans to extract the stale air from the living space to the outside as exhaust air. The resulting negative pressure in the interior, combined with leaks in the building envelope, ensures increased natural supply air. <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-477dd9b elementor-widget elementor-widget-spacer\" data-id=\"477dd9b\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a9c4cde elementor-widget elementor-widget-image\" data-id=\"a9c4cde\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"300\" height=\"130\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik-A1-300x130.png\" class=\"attachment-medium size-medium wp-image-6929\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik-A1-300x130.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik-A1.png 591w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60ab5be elementor-widget elementor-widget-spacer\" data-id=\"60ab5be\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7a8fdfb elementor-widget elementor-widget-text-editor\" data-id=\"7a8fdfb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A1 &#8211; Exhaust air system, central ventilation unit, without heat recovery<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5178548 elementor-widget elementor-widget-spacer\" data-id=\"5178548\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dcf0306 elementor-widget elementor-widget-image\" data-id=\"dcf0306\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"158\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A21-300x158.png\" class=\"attachment-medium size-medium wp-image-6930\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A21-300x158.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A21.png 548w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ff03227 elementor-widget elementor-widget-spacer\" data-id=\"ff03227\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0505979 elementor-widget elementor-widget-text-editor\" data-id=\"0505979\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A2.1 &#8211; Exhaust air system, central ventilation unit, without heat exchanger, with exhaust air heat pump for domestic hot water<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-043e20c elementor-widget elementor-widget-spacer\" data-id=\"043e20c\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2cdc8be elementor-widget elementor-widget-image\" data-id=\"2cdc8be\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"158\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A22-300x158.png\" class=\"attachment-medium size-medium wp-image-6931\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A22-300x158.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A22.png 548w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c4e3baa elementor-widget elementor-widget-spacer\" data-id=\"c4e3baa\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d6472b7 elementor-widget elementor-widget-text-editor\" data-id=\"d6472b7\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A2.2 &#8211; Exhaust air system, central ventilation unit, without heat exchanger, with exhaust air heat pump for heating water and domestic hot water<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6bc836e elementor-widget elementor-widget-spacer\" data-id=\"6bc836e\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b47c087 elementor-widget elementor-widget-image\" data-id=\"b47c087\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"158\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A23-300x158.png\" class=\"attachment-medium size-medium wp-image-6932\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A23-300x158.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A23.png 548w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7ef9aa1 elementor-widget elementor-widget-spacer\" data-id=\"7ef9aa1\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-740ce6c elementor-widget elementor-widget-text-editor\" data-id=\"740ce6c\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A2.3 &#8211; Exhaust air system, central ventilation unit, without heat exchanger, with exhaust air heat pump for heating water<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-16b514a elementor-widget elementor-widget-spacer\" data-id=\"16b514a\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ead8846 elementor-widget elementor-widget-image\" data-id=\"ead8846\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"109\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A3-300x109.png\" class=\"attachment-medium size-medium wp-image-6933\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A3-300x109.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_A3.png 527w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d558610 elementor-widget elementor-widget-spacer\" data-id=\"d558610\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2136f41 elementor-widget elementor-widget-text-editor\" data-id=\"2136f41\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A3 &#8211; extract air system, single room decentralized, without heat recovery<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c5eb8b elementor-widget elementor-widget-spacer\" data-id=\"3c5eb8b\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bfe7eba elementor-widget elementor-widget-menu-anchor\" data-id=\"bfe7eba\" data-element_type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"headline3\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2a3cae3 elementor-widget elementor-widget-heading\" data-id=\"2a3cae3\" 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\">Central supply\/exhaust air systems<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-20e26e4 elementor-widget elementor-widget-spacer\" data-id=\"20e26e4\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5958941 elementor-widget elementor-widget-text-editor\" data-id=\"5958941\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Central supply\/exhaust air systems are devices installed in separate rooms (e.g. utility room) in combination with air ducts connected to the rooms to be ventilated. These systems provide both mechanically controlled supply and exhaust air. Most units have heat recovery from the exhaust air for the air supplied to the interior. Combinations with heat pumps are also possible.   <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1fc69f3 elementor-widget elementor-widget-spacer\" data-id=\"1fc69f3\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cbe910f elementor-widget elementor-widget-image\" data-id=\"cbe910f\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"134\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA1-300x134.png\" class=\"attachment-medium size-medium wp-image-6934\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA1-300x134.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA1.png 563w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fbe003a elementor-widget elementor-widget-spacer\" data-id=\"fbe003a\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6b4a76a elementor-widget elementor-widget-text-editor\" data-id=\"6b4a76a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA1 &#8211; Supply\/extract air system, central ventilation unit, without heat recovery<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9e7f7ae elementor-widget elementor-widget-spacer\" data-id=\"9e7f7ae\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6694b49 elementor-widget elementor-widget-image\" data-id=\"6694b49\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"134\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA2-300x134.png\" class=\"attachment-medium size-medium wp-image-6935\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA2-300x134.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA2.png 564w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-41212bc elementor-widget elementor-widget-spacer\" data-id=\"41212bc\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d97479a elementor-widget elementor-widget-text-editor\" data-id=\"d97479a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA2 &#8211; Supply\/extract air system, central ventilation unit, with air\/air heat exchanger<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c35bb7e elementor-widget elementor-widget-spacer\" data-id=\"c35bb7e\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4972eea elementor-widget elementor-widget-image\" data-id=\"4972eea\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"134\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA31-300x134.png\" class=\"attachment-medium size-medium wp-image-6936\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA31-300x134.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA31.png 563w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b5f45c0 elementor-widget elementor-widget-spacer\" data-id=\"b5f45c0\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cd41408 elementor-widget elementor-widget-text-editor\" data-id=\"cd41408\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA3.1 &#8211; Supply\/extract air system, central ventilation unit, without heat exchanger with air\/air heat pump<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1cce4eb elementor-widget elementor-widget-spacer\" data-id=\"1cce4eb\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ae685e8 elementor-widget elementor-widget-image\" data-id=\"ae685e8\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"249\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA32-300x249.png\" class=\"attachment-medium size-medium wp-image-6937\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA32-300x249.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA32.png 563w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a66693c elementor-widget elementor-widget-spacer\" data-id=\"a66693c\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-453bf30 elementor-widget elementor-widget-text-editor\" data-id=\"453bf30\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA3.2 &#8211; Supply\/extract air system, central ventilation unit, without heat exchanger with air\/water heat pump for domestic hot water and\/or heating water<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-610f443 elementor-widget elementor-widget-spacer\" data-id=\"610f443\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-459da04 elementor-widget elementor-widget-image\" data-id=\"459da04\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"216\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA33-300x216.png\" class=\"attachment-medium size-medium wp-image-6938\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA33-300x216.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA33.png 563w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-510e0d6 elementor-widget elementor-widget-spacer\" data-id=\"510e0d6\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a03b2bf elementor-widget elementor-widget-text-editor\" data-id=\"a03b2bf\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA3.3 &#8211; Supply\/extract air system, central ventilation unit, without heat exchanger with air\/air\/water heat pump for air heating and\/or domestic hot water and\/or heating water<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-60789cf elementor-widget elementor-widget-spacer\" data-id=\"60789cf\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b4c89b7 elementor-widget elementor-widget-image\" data-id=\"b4c89b7\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"249\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA41-300x249.png\" class=\"attachment-medium size-medium wp-image-6939\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA41-300x249.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA41.png 560w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5cc1ca9 elementor-widget elementor-widget-spacer\" data-id=\"5cc1ca9\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c8e020 elementor-widget elementor-widget-text-editor\" data-id=\"0c8e020\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA4.1 &#8211; Supply\/extract air system, central ventilation unit, with heat exchanger and air\/air heat pump<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3c19a8a elementor-widget elementor-widget-spacer\" data-id=\"3c19a8a\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c6e093 elementor-widget elementor-widget-image\" data-id=\"7c6e093\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"203\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA42-300x203.png\" class=\"attachment-medium size-medium wp-image-6940\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA42-300x203.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA42.png 705w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cd5a0fc elementor-widget elementor-widget-spacer\" data-id=\"cd5a0fc\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-17c750f elementor-widget elementor-widget-text-editor\" data-id=\"17c750f\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA4.2 &#8211; Supply\/extract air system, central ventilation unit, with heat exchanger and air\/water heat pump for domestic hot water and\/or heating water<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-352f9c1 elementor-widget elementor-widget-spacer\" data-id=\"352f9c1\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c00020 elementor-widget elementor-widget-image\" data-id=\"2c00020\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"271\" height=\"300\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA43-271x300.png\" class=\"attachment-medium size-medium wp-image-6941\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA43-271x300.png 271w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA43.png 560w\" sizes=\"(max-width: 271px) 100vw, 271px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6839c4f elementor-widget elementor-widget-spacer\" data-id=\"6839c4f\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31ca541 elementor-widget elementor-widget-text-editor\" data-id=\"31ca541\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA4.3 &#8211; Supply\/extract air system, central ventilation unit, with heat exchanger and air\/air\/water heat pump for air heating and\/or domestic hot water and\/or heating water<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7eb7b7e elementor-widget elementor-widget-spacer\" data-id=\"7eb7b7e\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c155f2 elementor-widget elementor-widget-menu-anchor\" data-id=\"6c155f2\" data-element_type=\"widget\" data-widget_type=\"menu-anchor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-menu-anchor\" id=\"headline4\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-64f0aa5 elementor-widget elementor-widget-heading\" data-id=\"64f0aa5\" 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\">Decentralized supply\/exhaust air systems<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0b45d47 elementor-widget elementor-widget-spacer\" data-id=\"0b45d47\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c80bc5 elementor-widget elementor-widget-text-editor\" data-id=\"0c80bc5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In most cases, decentralized supply\/exhaust air systems are ventilation units installed in the living space (e.g. in the building envelope) in combination with air ducts or without air ducts for the ventilation of individual rooms. These systems<br>provide both mechanically controlled supply and extract air. The<br>majority of units have heat recovery from the exhaust air for<br>the air supplied to the interior.  <\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6e8f559 elementor-widget elementor-widget-spacer\" data-id=\"6e8f559\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d54d31a elementor-widget elementor-widget-image\" data-id=\"d54d31a\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"134\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA5-300x134.png\" class=\"attachment-medium size-medium wp-image-6942\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA5-300x134.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA5.png 563w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9914bb5 elementor-widget elementor-widget-spacer\" data-id=\"9914bb5\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f0c362 elementor-widget elementor-widget-text-editor\" data-id=\"3f0c362\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA5 &#8211; Supply\/extract air system, single room decentralized, without heat recovery<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a8d43ca elementor-widget elementor-widget-spacer\" data-id=\"a8d43ca\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4e1c634 elementor-widget elementor-widget-image\" data-id=\"4e1c634\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"134\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA6-300x134.png\" class=\"attachment-medium size-medium wp-image-6943\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA6-300x134.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA6.png 564w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-da87eb4 elementor-widget elementor-widget-spacer\" data-id=\"da87eb4\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f913569 elementor-widget elementor-widget-text-editor\" data-id=\"f913569\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA6 &#8211; Supply\/extract air system, single room decentralized, with heat recovery<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3d3a4c3 elementor-widget elementor-widget-spacer\" data-id=\"3d3a4c3\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9497b18 elementor-widget elementor-widget-image\" data-id=\"9497b18\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"134\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA7-300x134.png\" class=\"attachment-medium size-medium wp-image-6944\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA7-300x134.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA7.png 563w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ff8ed1 elementor-widget elementor-widget-spacer\" data-id=\"1ff8ed1\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-800c7b5 elementor-widget elementor-widget-text-editor\" data-id=\"800c7b5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA7 &#8211; Supply\/extract air system, single room decentralized, with heat pump<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-551d740 elementor-widget elementor-widget-spacer\" data-id=\"551d740\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74fdebf elementor-widget elementor-widget-image\" data-id=\"74fdebf\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"287\" src=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA8-300x287.png\" class=\"attachment-medium size-medium wp-image-6945\" alt=\"\" srcset=\"https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA8-300x287.png 300w, https:\/\/tzwl.de\/wp-content\/uploads\/2022\/01\/grafik_ZA8.png 570w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-236b0e5 elementor-widget elementor-widget-spacer\" data-id=\"236b0e5\" data-element_type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4dcfe05 elementor-widget elementor-widget-text-editor\" data-id=\"4dcfe05\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>ZA8 &#8211; Supply\/extract air system, single room decentralized, with heat recovery, switchover mode<\/p>\t\t\t\t\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>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 without heat recovery, as well as supply\/exhaust air systems with and without heat recovery. There are also controlled domestic ventilation systems in combination with various heat pump systems. Supply air&hellip;<\/p>\n","protected":false},"author":2,"featured_media":6899,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[99],"tags":[],"class_list":["post-7135","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ventilation"],"_links":{"self":[{"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/posts\/7135","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/comments?post=7135"}],"version-history":[{"count":2,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/posts\/7135\/revisions"}],"predecessor-version":[{"id":7139,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/posts\/7135\/revisions\/7139"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/media\/6899"}],"wp:attachment":[{"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/media?parent=7135"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/categories?post=7135"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tzwl.de\/en\/wp-json\/wp\/v2\/tags?post=7135"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}