DuraVent FasNSeal W2 Appliance Adapter with Test Port: check the exhaust without drilling into the vent
The DuraVent FasNSeal W2 Appliance Adapter with Test Port is an adapter that connects a FasNSeal W2 vent to an appliance’s exhaust outlet. A small plug comes out so a technician can check the exhaust and test the appliance. There is no need to drill into the vent. FasNSeal W2 is DuraVent’s double wall stainless steel vent for high efficiency gas boilers, furnaces, and water heaters, with an air space between its two walls. Choose a size from 3 to 16 inch on this page. The marked appliance end faces the appliance.
W2 can sit as close as 1 inch to materials that can burn, depending on the appliance’s exhaust temperature and whether the vent is exposed or enclosed. Single wall vent needs more room. W2 also allows an outdoor run below the roof line without the enclosure that would otherwise be needed. Don’t need the test port? See the DuraVent FasNSeal W2 Appliance Adapter without a test port. The DuraVent FasNSeal W2 Appliance Adapter with Test Port ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.








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