Gas Furnace Roof Vent Cap

Furnace vents remove fumes and combustion air that are generated by gas and oil fired furnaces.

Gas furnace roof vent cap. The vents consist of circular or oblong pipe that attaches. In contrast modern high efficiency condensing furnaces exhaust much cooler gasses and need only plastic pipe materials such as pvc cpvc or abs for their exhaust vents some high efficiency furnaces also include a plastic pipe for intake area and all types. A rusted area on a vent pipe not only lets rainwater enter the attic but also allows potentially dangerous downdrafts to push fumes into the home s living space. Also known as the type b this vent is operating on the natural air convection.

The constant exposure to weather weakens a gas furnace roof vent s outer liner and termination cap. Selkirk metalbestos selkirk 104800 gas vent 4 cap bird proof type b top round galvanized. Run the vent pipe up through the roof and install a metal or pvc flashing collar over it. Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys.

How to remove old furnace roof venting. This dangerous situation can be prevented by installing a chimney cap that is suspended over the flue to let gas out and keep animals out. Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl. Made of heavy duty aluminum.

When the vent is withdrawing air from the house it expels the gas outside through the vent. This cap is adjustable to fit pipes with a 5 in. 1 16 of 309 results for furnace vent cap raven r1508 2 inch pvc termination vent. This product is made with all aluminum to resist rusting like sheet metal.

Get it as soon as thu oct 8. Dia using an adjustable clamp design for easy installation. The master flow 5 in. 2 pack roof vent mesh stainless steel wire mesh house vents mesh chimney cap meshes fan.

Downdraft strong winds blowing across the top of uncapped chimneys can blow the gases from the furnace back down the chimney inadequately venting the furnace. For many homes a gas furnace is the preferred heating device it has proven to be an efficient and reliable way of meeting household heating needs over the years. A gas furnace uses a double wall flue pipe for its vent. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.