Furnace Vent Pipe Roof

If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof.

Furnace vent pipe roof. 4 remove the metal straps that secure the upper and lower portions of the vent pipe to the roof and ceiling framing. The exhaust system typically uses metal venting often routed into a chimney stack to exhaust the combustion gases created in the furnace fire chamber. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner. This vent is designed to be used on 4 in.

When the vent is withdrawing air from the house it expels the gas outside through the vent. Should my furnace flue pipe go through the roof or the side of the house. 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. Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation.

Also known as the type b this vent is operating on the natural air convection. Oatey 1 1 2 in to 3 in x 15 in plastic vent and pipe flashing. It s made of zinc coated galvanized steel for durability and reliability. Oatey retro master roof flashing 1 4 in to 4 in x 8 in epdm rubber vent and pipe flashing.

So which type of venting system should your furnace have. Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys. 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. Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl.

A gas furnace uses a double wall flue pipe for its vent. Run the vent pipe up through the roof and install a metal or pvc flashing collar over it. For pricing and availability. Goose neck vent the master flow 4 in.

The constant exposure to weather weakens a gas furnace roof vent s outer liner and termination cap. The vent pipe or flue is a vital component of the furnace that transmits emissions from the combustion process out of the building. The master flow 4 in. 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.