DuraVent FasNSeal 2 Degree Adjustable Vent Length: a sliding section that gives horizontal venting its slope
The DuraVent FasNSeal 2 Degree Adjustable Vent Length is an 18 inch stainless steel vent section with a 2 degree bend. It slides into a plain vent length to help a horizontal run slope upward away from the appliance. That rise needs to be at least 1/4 inch per foot so condensate, the liquid that collects from the exhaust, flows back to the drain. 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 to match the vent run. The sliding fit lets your installer adjust the length where this sloped section belongs. The pipe also needs separate support. Horizontal runs need hangers every 6 feet. Wall brackets belong every 12 feet vertically, after an offset, and where a turn upward is followed by more than 10 feet of vertical pipe. A firestop is needed at each floor or ceiling crossing. Need a straight sliding section? See the DuraVent FasNSeal Adjustable Vent Length, a straight sliding length. The DuraVent FasNSeal 2 Degree Adjustable Vent Length ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.








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