If your furnace has an afue rating of 90 or lower it probably exhausts the gases though the flue pipe on your roof.
Furnace vent pipe through 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.
Since the exhaust pipe is running on a sidewall the fan works together with the furnace.
The master flow 6 in.
Direct vent systems have versatility to their installation that natural vents do not.
Goose neck vent the master flow 6 in.
This vent features a heavy duty screen which helps protect against small animals from entering your home through the vent.
Also no chimney is needed regardless of whether horizontal or vertical installation is used.
Locate the spot to install the vent pipe using a tape measure to determine distance from a wall or other.
High efficiency furnaces take advantage of the heat in the combustion gases that are wasted in natural ventilation systems.
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.
Installation of direct venting is fairly easy but more costly than the b vent type.
With the pipe in a vertical position trace around the pipe using a pencil.
Piping can be set horizontally to allow venting through a sidewall or vertical installation can also be undertaken to allow venting through the roof.
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.
Run the vent pipe up through the roof and install a metal or pvc flashing collar over it.
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.
If your furnace has an afue rating of 90 percent or above it will have a flue pipe that goes out of the side of your house.
If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof.
Another problem is that flue pipes that go through the roof tend to be less efficient.
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.
How to vent a furnace in a roof 1.
This vent is designed to be used on 6 in.
It s made of zinc coated galvanized steel for durability and reliability.
Horizontally through the sidewall or vertically through the roof.
Go into your attic.
Match the vent pipe to the.
That depends on whether you have a standard efficiency or a high efficiency furnace.
