Furnace Vent Pipe Through Roof

What to know before you install b vent furnace pipe.

Furnace vent pipe through roof. How to vent a furnace in a roof 1. Locate the spot to install the vent pipe using a tape measure to determine distance from a wall or other. Go into your attic. When compared to the natural vent this one is more flexible although it is also costlier.

Goose neck vent the master flow 6 in. One common problem with natural ventilation however is the risk of back drafting. Also known as the induced draft fan this one has a fan that is located on the end of the pipe. The master flow 6 in.

Furnace vents remove fumes and combustion air that are generated by gas and oil fired furnaces. The air rises enough to get expelled through your roof. The air is then vented outside through a b vent pipe which is set vertically to expel combustion air through the roof. Since the exhaust pipe is running on a sidewall the fan works together with the furnace.

It draws air from within the house for combustion. It s made of zinc coated galvanized steel for durability and reliability. If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof. Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation.

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. The vents consist of circular or oblong pipe that attaches to a flange on the furnace and extends. What to know before you install b vent furnace pipe. The pipes can be set in two ways.

Horizontally through the sidewall or vertically through the roof. 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. Match the vent pipe to the. Put a cover on the vent.

Position the vent pipe up to the bottom of the roof. The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof. 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 black finish helps this vent blend into your home s rooftop.

With the pipe in a vertical position trace around the pipe using a pencil. This vent features a heavy duty screen which helps protect against small animals from entering your home through the vent. Run the vent pipe up through the roof and install a metal or pvc flashing collar over it. That depends on whether you have a standard efficiency or a high efficiency furnace.

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.