Furnace Vent Pipe Through Roof

The pipes can be set in two ways.

Furnace vent pipe through roof.

That depends on whether you have a standard efficiency or a high efficiency furnace. Goose neck vent the master flow 6 in. The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof. One common problem with natural ventilation however is the risk of back drafting.

Match the vent pipe to the. When compared to the natural vent this one is more flexible although it is also costlier. This vent is designed to be used on 6 in. Position the vent pipe up to the bottom of the roof.

The air rises enough to get expelled through your roof. Go into your attic. Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation. Since the exhaust pipe is running on a sidewall the fan works together with the furnace.

Also known as the induced draft fan this one has a fan that is located on the end of the pipe. Horizontally through the sidewall or vertically through the roof. Put a cover on the vent. How to vent a furnace in a roof 1.

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. What to know before you install b vent furnace pipe. With the pipe in a vertical position trace around the pipe using a pencil. Gases produced during combustion are very hot and as such easily rise through the flue.

The air is then vented outside through a b vent pipe which is set vertically to expel combustion air through 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 vents consist of circular or oblong pipe that attaches to a flange on the furnace and extends. Locate the spot to install the vent pipe using a tape measure to determine distance from a wall or other.

If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof. Type b vents are a standard design that most modern gas furnaces use. 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. What to know before you install b vent furnace pipe.

The master flow 6 in. 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 black finish helps this vent blend into your home s rooftop. It draws air from within the house for combustion.

Furnace vents remove fumes and combustion air that are generated by gas and oil fired furnaces.