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…
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…
Which key figures are determined according to DIBt LÜ-A 20? The old test program of the German Institute for Building Technology (DIBt), LÜ-A 20, includes…
Ruhr Nachrichten article about the Company Friday at TZWL, with a visit from the mayor of Schwerte.
TZWL from Schwerte publishes current list of domestic ventilation units with and without heat recovery.
TZWL moves to the headquarters of Schrezenmaier Kältetechnik in Schwerte to modernize its testing facilities
12th Residential Ventilation Forum – The joint expert forum of the HEA and the Federal Environment Agency on November 21, 2023 will focus on the…
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…
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…
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,…
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…
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…
How expensive is a domestic ventilation system? A ventilation unit costs between €800 and €8,000, depending on performance and efficiency. In addition, depending on the…
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…
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…
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…
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…
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…
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…
Which key figures are determined according to EN 13141 / DIBt LÜ-A 21? The European test standard EN 13141 provides specifications for testing the tightness,…
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…
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…
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…
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…
On June 1, 2017, the >> German Institute for Building Technology (DIBt) published the draft version of the updated >> Model Administrative Regulation for Technical…
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…