DuraVent FasNSeal Horizontal Drain Fitting: a drain beneath a horizontal vent run
The DuraVent FasNSeal Horizontal Drain Fitting is a short section of stainless steel vent pipe with a drain outlet underneath. It lets collected liquid leave a horizontal run. DuraVent calls for a drain every 30 feet along that run and near the appliance unless the appliance has its own drain. The fitting sits with its outlet pointing straight down. 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 to match the vent run. The 3 to 5 inch sizes have a 5/8 inch drain tube. The 6 to 16 inch sizes have a 1 inch pipe thread connection instead. Horizontal pipe must rise away from the appliance at least 1/4 inch per foot so liquid flows back toward the drain. It also needs support, with hangers every 6 feet along a horizontal run. Need drainage beneath a tee? See the DuraVent FasNSeal Drain Fitting for the bottom of a tee. The DuraVent FasNSeal Horizontal Drain Fitting 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:








































