DuraVent FasNSeal Dunkirk XEB Series and Pennco FSB Series Appliance Adapter: a 3 inch connection for listed boilers
The DuraVent FasNSeal Dunkirk XEB Series and Pennco FSB Series Appliance Adapter is the part that joins a FasNSeal vent to a boiler’s exhaust outlet. This 3 inch adapter is listed by DuraVent for Dunkirk XEB Series boilers, XEB-2 through XEB-7, and Pennco FSB Series boilers. 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.
Condensate is the acidic liquid that drips from the exhaust. Unless the appliance has its own drain, a FasNSeal drain belongs as close to it as possible. Horizontal pipe rises at least 1/4 inch per foot away from the appliance so that liquid flows back to the drain. The pipe cannot support itself, so the vent also needs hangers and wall brackets. For Dunkirk XEB-2 to XEB-5, DuraVent also lists the DuraVent FasNSeal Crown, Dunkirk, and Modine Termination Appliance Adapter. The DuraVent FasNSeal Dunkirk XEB Series and Pennco FSB Series Appliance Adapter ships free from My Cozy Outdoors with No Sales Tax (except WY) and the full manufacturer warranty.








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