Furnace Vent Pipe Through 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 through roof.

Locate the spot to install the vent pipe using a tape measure to determine distance from a wall or other. It draws air from within the house for combustion. That depends on whether you have a standard efficiency or a high efficiency furnace. Run the vent pipe up through the roof and install a metal or pvc flashing collar over it.

It s made of zinc coated galvanized steel for durability and reliability. Type b vents are a standard design that most modern gas furnaces use. The vents consist of circular or oblong pipe that attaches to a flange on the furnace and extends. Since the exhaust pipe is running on a sidewall the fan works together with the furnace.

Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation. Horizontally through the sidewall or vertically through the roof. Position the vent pipe up to the bottom of the roof. With the pipe in a vertical position trace around the pipe using a pencil.

The pipes can be set in two ways. The black finish helps this vent blend into your home s rooftop. When compared to the natural vent this one is more flexible although it is also costlier. The air rises enough to get expelled through your roof.

Goose neck vent the master flow 6 in. What to know before you install b vent furnace pipe. Also known as the induced draft fan this one has a fan that is located on the end of the pipe. The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof.

The air is then vented outside through a b vent pipe which is set vertically to expel combustion air through the roof. How to vent a furnace in a roof 1. This vent is designed to be used on 6 in. Gases produced during combustion are very hot and as such easily rise through the flue.

These systems are very common and if you take a look at the roofs of your neighbors you will see that most of them have a furnace flue ventilation pipe sticking up. 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. 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. Furnace vents remove fumes and combustion air that are generated by gas and oil fired furnaces.

Put a cover on the vent. 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. One common problem with natural ventilation however is the risk of back drafting. The master flow 6 in.

Go into your attic.