Furnace Roof Exhaust Pipe

The pipes can be set in two ways.

Furnace roof exhaust pipe.

This construction uses two different sizes of pipes within one unit. 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. If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof. That depends on whether you have a standard efficiency or a high efficiency furnace.

Some high efficiency furnaces also include a plastic pipe for intake area and all types use a third plastic pipe to drain away the corrosive condensation resulting from the combustion process. The outer pipe draws air for combustion from outside and the smaller pipe occupies the inner position and is used to vent the exhaust fumes. The outer and bigger pipe draws the air for combustion from outside while the smaller one is constructed on the inner position to expel the exhaust gas. Free delivery with 45 order.

Perma boot vent pipe repair for 4 in. For pricing and availability. Set your store to see local availability add to cart. Match the vent pipe to the furnace maker s recommendations either sheet metal or vinyl.

Gibraltar building products 11 in. 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. This vent is designed to be used on 4 in.

Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation. Rubber electrical mast split pipe boot roof flashing in black model 81746 37 27 37 27. Vent pipe in black model pbr 312 4bk 19 97 19 97. Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys.

Oatey 1 1 2 in to 3 in x 15 in plastic vent and pipe flashing. The master flow 4 in. Run the vent pipe up through the roof and install a metal or pvc flashing collar over it. What to know before you install b vent furnace pipe.

Horizontally through the sidewall or vertically through the roof. What to know before you install b vent furnace pipe. Piping can be set horizontally to allow venting through a sidewall or vertical installation can also be undertaken to allow venting through the roof. It s made of zinc coated galvanized steel for durability and reliability.

Twist the roof s vent pipe clockwise one half turn with one hand while holding the gas furnace s vent pipe still with the other hand. Push the male end of a new vent pipe up through the bottom of the roof flashing and set its female end on the male end of the vent pipe that connects to the gas furnace.