Furnace Vent Pipe Through Roof

The pipes can be set in two ways.

Furnace vent pipe through roof. Position the vent pipe up to the bottom of the roof. Go into your attic. The black finish helps this vent blend into your home s rooftop. One common problem with natural ventilation however is the risk of back drafting.

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. 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. 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. The master flow 6 in. The vents consist of circular or oblong pipe that attaches to a flange on the furnace and extends. 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. Horizontally through the sidewall or vertically through the roof. That depends on whether you have a standard efficiency or a high efficiency furnace. Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation.

The air is then vented outside through a b vent pipe which is set vertically to expel combustion air through the roof. 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. What to know before you install b vent furnace pipe. What to know before you install b vent furnace pipe.

Type b vents are a standard design that most modern gas furnaces use. Put a cover on the vent. Goose neck vent the master flow 6 in. Run the vent pipe up through the roof and install a metal or pvc flashing collar over it.

Since the exhaust pipe is running on a sidewall the fan works together with the furnace. How to vent a furnace in a roof 1. Gases produced during combustion are very hot and as such easily rise through the flue. It draws air from within the house for combustion.

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. 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. This vent features a heavy duty screen which helps protect against small animals from entering your home through the vent.

It s made of zinc coated galvanized steel for durability and reliability.