Type b vents are a standard design that most modern gas furnaces use.
Furnace vent pipe through roof.
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.
Horizontally through the sidewall or vertically 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.
How to vent a furnace in a roof 1.
Also known as the induced draft fan this one has a fan that is located on the end of the pipe.
Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation.
When compared to the natural vent this one is more flexible although it is also costlier.
Since the exhaust pipe is running on a sidewall the fan works together with the furnace.
Match the vent pipe to the.
This vent is designed to be used on 6 in.
The pipes can be set in two ways.
The vents consist of circular or oblong pipe that attaches to a flange on the furnace and extends.
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.
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 black finish helps this vent blend into your home s rooftop.
Go into your attic.
Position the vent pipe up to the bottom of the roof.
It s made of zinc coated galvanized steel for durability and reliability.
Locate the spot to install the vent pipe using a tape measure to determine distance from a wall or other.
Put a cover on the vent.
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.
One common problem with natural ventilation however is the risk of back drafting.
Furnace vents remove fumes and combustion air that are generated by gas and oil fired furnaces.
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.
Goose neck vent the master flow 6 in.
The master flow 6 in.
It draws air from within the house for combustion.
What to know before you install b vent furnace pipe.
If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof.
What to know before you install b vent furnace pipe.
