Direct vent systems have versatility to their installation that natural vents do not.
Furnace venting through roof.
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.
These collars consist of a metal base generally made out of aluminum and a rubber boot integrated into the top of the collar.
This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.
The penetration will be oval to have a round pipe exit vertically through a pitched roof you need an oval hole in the roof.
Piping can be set horizontally to allow venting through a sidewall or vertical installation can also be undertaken to allow venting through the roof.
When the vent is withdrawing air from the house it expels the gas outside through the vent.
Goose neck vent the master flow 4 in.
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.
Position the vent pipe up to the bottom of the roof.
Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation.
It is easier to go through the wall next to the furnace and makes it a lot easier to deal with.
Go into your attic.
This vent is designed to be used on 4 in.
Typically vent pipe leaks occur at the collar surrounding the base of the vent pipe where it breaks through the surface of the roofing material.
If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof.
If you are venting a high efficient furnace with the pvc piping you can go through a roof or wall.
Also no chimney is needed regardless of whether horizontal or vertical installation is used.
Run the vent pipe up through the roof and install a metal or pvc flashing collar over it.
High efficiency furnaces take advantage of the heat in the combustion gases that are wasted in natural ventilation systems.
If your furnace has an afue rating of 90 or lower it probably exhausts the gases though the flue pipe on your roof.
With the pipe in a vertical position trace around the pipe using a pencil.
Installation of direct venting is fairly easy but more costly than the b vent type.
The master flow 4 in.
Also known as the type b this vent is operating on the natural air convection.
That depends on whether you have a standard efficiency or a high efficiency furnace.
The collar s job is to create a tight seal keeping rainwater and debris from getting into your attic.
Another problem is that flue pipes that go through the roof tend to be less efficient.
