Furnace Vent Pipe Through Roof

Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation.

Furnace vent pipe through roof. Position the vent pipe up to the bottom of the roof. That depends on whether you have a standard efficiency or a high efficiency furnace. The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof. Horizontally through the sidewall or vertically through the roof.

Run the vent pipe up through the roof and install a metal or pvc flashing collar over it. When compared to the natural vent this one is more flexible although it is also costlier. If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof. How to vent a furnace in a roof 1.

This vent is designed to be used on 6 in. That s because the combustion byproducts are in a gaseous form so the gases can float up through the flue pipe and out of your roof. The master flow 6 in. It s made of zinc coated galvanized steel for durability and reliability.

With the pipe in a vertical position trace around the pipe using a pencil. Also known as the induced draft fan this one has a fan that is located on the end of the pipe. If your furnace has an afue rating of 90 or lower it probably exhausts the gases though the flue pipe on your roof. Match the vent pipe to the.

High efficiency furnaces take advantage of the heat in the combustion gases that are wasted in natural ventilation systems. The pipes can be set in two ways. If your furnace has an afue rating of 90 percent or above it will have a flue pipe that goes out of the side of your house. Piping can be set horizontally to allow venting through a sidewall or vertical installation can also be undertaken to allow venting through the roof.

Go into your attic. The black finish helps this vent blend into your home s rooftop. 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. Another problem is that flue pipes that go through the roof tend to be less efficient.

Installation of direct venting is fairly easy but more costly than the b vent type. Goose neck vent the master flow 6 in. Locate the spot to install the vent pipe using a tape measure to determine distance from a wall or other. 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.

Direct vent systems have versatility to their installation that natural vents do not. Put a cover on the vent.