High efficiency furnaces take advantage of the heat in the combustion gases that are wasted in natural ventilation systems.
Furnace vent pipe through roof.
Locate the spot to install the vent pipe using a tape measure to determine distance from a wall or other.
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.
Run the vent pipe up through the roof and install a metal or pvc flashing collar over it.
The master flow 6 in.
Direct vent systems have versatility to their installation that natural vents do not.
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 pipes can be set in two ways.
Since the exhaust pipe is running on a sidewall the fan works together with the 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.
This vent is designed to be used on 6 in.
Goose neck vent the master flow 6 in.
Go into your attic.
Match the vent pipe to the.
Also no chimney is needed regardless of whether horizontal or vertical installation is used.
This vent features a heavy duty screen which helps protect against small animals from entering your home through the vent.
Put a cover on the vent.
Installation of direct venting is fairly easy but more costly than the b vent type.
When compared to the natural vent this one is more flexible although it is also costlier.
Position the vent pipe up to the bottom of the roof.
Horizontally through the sidewall or vertically through the roof.
The black finish helps this vent blend into your home s rooftop.
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.
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 depends on whether you have a standard efficiency or a high efficiency furnace.
Piping can be set horizontally to allow venting through a sidewall or vertical installation can also be undertaken to allow venting through the roof.
Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation.
How to vent a furnace in a roof 1.
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.
It s made of zinc coated galvanized steel for durability and reliability.
