DuraVent FasNSeal Termination Cone: a tapered roof outlet that lets less rain in
The DuraVent FasNSeal Termination Cone is a tapered top for a gas vent that ends above the roof. Its opening is smaller than the vent below it, so exhaust leaves faster and less rain can get inside. The narrower outlet also adds a little resistance to the exhaust flow to help quiet vent humming. 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 the vent and outlet size combination: 5 by 4, 12 by 10, 14 by 12, or 16 by 14 inch.
The vent must finish at least 2 feet above the roof line and above any wall within 8 feet. It needs extra support if it extends more than 6 feet above the roof. On a single wall run, a roof jack fits inside the flashing, the weather covering around the roof opening. A storm collar seals the gap around the pipe. Need a double wall top? See the DuraVent FasNSeal W2 Termination Cone. The DuraVent FasNSeal Termination Cone 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:








































