DuraVent FasNSeal Termination Tee: an outside wall ending for ordinary or high wind locations
The DuraVent FasNSeal Termination Tee is a tee shaped fitting that finishes a vent on an outside wall. DuraVent lists it for both everyday conditions and windy locations. The same tee fits single wall and W2 runs. FasNSeal is DuraVent’s stainless steel vent for high efficiency gas boilers, furnaces, and water heaters, built to carry pressurized exhaust and its acidic condensate outside. Choose a size from 3 to 16 inch on this page. That measurement is the inside diameter, which matches the appliance outlet.
The wall ending needs at least 12 inches above the ground and snow line, and 7 feet above a public walkway or driveway. It must sit at least 6 feet from any appliance air intake and 3 feet from a gas meter or other building opening. For doors and windows, allow at least 4 feet below or beside them, or 1 foot above. The appliance instructions may call for more distance. Prefer a screened wall ending? See the DuraVent FasNSeal 23 Degree Bird Screen wall ending. The DuraVent FasNSeal Termination Tee ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.








Commercial projects may require custom parts and unique system designs. Duravent offers complete project assistance:








































