DuraVent FasNSeal W2 90 Degree Elbow: a fixed square turn for a double wall run
The DuraVent FasNSeal W2 90 Degree Elbow is a double wall stainless steel fitting that turns the vent from sideways to upright, or back again. This square turn uses more of the appliance maker’s allowance for bends than a gentler turn. Its welded angle stays fixed, so it cannot be adjusted. 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, measured across the inside passage that carries the exhaust. The appliance maker sets the vent route and length limits. W2 can sit as close as 1 inch to materials that can burn, depending on the appliance’s exhaust temperature and whether the run is exposed or enclosed. It also suits outdoor runs below the roof line that would otherwise need an enclosure. Need the single wall fitting? See the DuraVent FasNSeal 90 Degree Elbow single wall fitting. The DuraVent FasNSeal W2 90 Degree Elbow ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.








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