With the “eBulletin – List for domestic ventilation units with and without heat recovery”, we have been providing information on controlled domestic ventilation units and their technical key figures for over 20 years. The eBulletin is recognized by various funding bodies as a standard source of information on domestic ventilation units.
TZWL eBulletin
Download TZWL eBulletin No. 25.1 (in German) now
The TZWL eBulletin No. 25 – Update No. 1 is available for download. With new device approvals and an updated layout, TZWL offers the most comprehensive eBulletin to date free of charge as a freely available PDF. The eBulletin is regarded by political and scientific institutions and in the area of the allocation of subsidies as the standard work for information on domestic ventilation units.
It provides neutral information on the equipment and quality of the device technology based on measurement data. Over 50 manufacturers use the eBulletin to make their devices accessible to architects, specialist planners and the public via the independent ventilation device database of the TZWL. The eBulletin thus ensures a high level of transparency in the market for domestic ventilation units and at the same time promotes the further development of unit technology.
The key figures and properties of the domestic ventilation units
What is the difference between central and decentralized domestic ventilation units? What is an integrated preheater coil – or a summer bypass? How is the heat recovery efficiency of a device calculated? Controlled domestic ventilation is a complex technology in which various components, properties and key figures are important. In Knowledge about domestic ventilation, we explain all the values and information that can be found in the device listings in the eBulletin.
