DuraVent FasNSeal Vent Length with Support Plate: a weight bearing base for a vertical vent stack
The DuraVent FasNSeal Vent Length with Support Plate is a section of stainless steel vent pipe with a square plate welded around it. It goes at the bottom of a vertical stack, where the plate carries the pipe’s weight. It can also give a horizontal run extra bracing. 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.
The plate does not replace supports elsewhere along the vent. Horizontal pipe needs hangers every 6 feet and must rise away from the appliance at least 1/4 inch per foot so liquid drains back. Vertical runs need wall brackets every 12 feet, after a sideways shift, and after a turn upward followed by more than 10 feet of pipe. Each floor or ceiling crossing needs a firestop, a barrier that limits fire spread through the opening. Need double wall pipe? See the DuraVent FasNSeal W2 Vent Length with Support Plate. The DuraVent FasNSeal Vent Length with Support Plate 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:








































