Furnace Vent Pipe Through Roof

What to know before you install b vent furnace pipe.

Furnace vent pipe through roof.

What to know before you install b vent furnace pipe. That depends on whether you have a standard efficiency or a high efficiency furnace. If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof. Run the vent pipe up through the roof and install a metal or pvc flashing collar over it.

Gases produced during combustion are very hot and as such easily rise through the flue. 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. Position the vent pipe up to the bottom of the roof. The air rises enough to get expelled through your 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 master flow 6 in. This vent is designed to be used on 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.

Put a cover on the vent. Locate the spot to install the vent pipe using a tape measure to determine distance from a wall or other. The vents consist of circular or oblong pipe that attaches to a flange on the furnace and extends. Furnace vents remove fumes and combustion air that are generated by gas and oil fired furnaces.

The black finish helps this vent blend into your home s rooftop. It s made of zinc coated galvanized steel for durability and reliability. Since the exhaust pipe is running on a sidewall the fan works together with the furnace. Type b vents are a standard design that most modern gas furnaces use.

With the pipe in a vertical position trace around the pipe using a pencil. How to vent a furnace in a roof 1. Match the vent pipe to the. 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 pipes can be set in two ways. Go into your attic. This vent features a heavy duty screen which helps protect against small animals from entering your home through the vent. When compared to the natural vent this one is more flexible although it is also costlier.

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

Horizontally through the sidewall or vertically through the roof.