Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Exhaust Backflow Preventer - Necessary?

paul_somlo
paul_somlo Member Posts: 9
in Domestic Hot Water
For a condensing tankless which will be located indoors - wondering if these are in common usage? Takagi lists it as an "option" for cold climates. The recommended one is stainless steel (Z-Vent), which, while they conveniently fit directly on the exhaust vent collar on the Takagi, I suppose they can only mate with other SS vent products? Since most condensers seem to be vented with PVC, I'm having a hard time believing that people use these devices.

Categories