DuraVent FasNSeal W2 Termination Cone: a tapered roof outlet that helps keep rain out
The DuraVent FasNSeal W2 Termination Cone is a double wall top for a vent that ends above the roof. Its opening narrows so exhaust leaves faster and less rain can enter. The smaller outlet also adds slight resistance to help quiet the humming a vent can develop. 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 an 8 inch vent with a 6 inch outlet or a 14 inch vent with a 12 inch outlet. Other combinations are made to order.
The 1/2 inch air space helps shield heat and reduce the distance needed from materials that can burn. W2’s outside diameter is 1 inch larger than its vent size. Its storm collar, support clamp, wall bracket, and firestop come from the single wall range and are ordered 1 inch larger. Roof flashing uses the vent size instead. Need the single wall top? See the DuraVent FasNSeal Termination Cone. The DuraVent FasNSeal W2 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:








































