Basic instructions on how to run pvc flue venting on high efficiency furnaces.
Furnace vent pipe through wall.
Table illustrations of the required space between a direct or side wall vent for a gas fired heating appliance and building windows doors corners gas meter air intakes sidewalks balconies.
So which type of venting system should your furnace have.
That depends on whether you have a standard efficiency or a high efficiency furnace.
What to know before you install b vent furnace pipe.
Direct venting uses a power ventilating blower or fan and in some models a heat exchanger plenum to cool outgoing gases passing through the building wall sidewall direct exhaust or roof or through an existing unused chimney through which a vent pipe is passed vertical direct exhaust.
The exhaust system typically uses metal venting often routed into a chimney stack to exhaust the combustion gases created in the furnace fire chamber.
A conventional natural gas furnace will vent the dangerous combustion gases through a simple vertical exhaust system that is attached to the furnace.
The condensing furnace produces condensed exhaust gases that contain water and carbon dioxide which together form carbonic acid that results in a corrosive condensate.
This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.
What to know before you install b vent furnace pipe.
Piping can be set horizontally to allow venting through a sidewall or vertical installation can also be undertaken to allow venting through the roof.
Should my furnace flue pipe go through the roof or the side of the house.
Also known as the type b this vent is operating on the natural air convection.
The outer pipe draws air for combustion from outside and the smaller pipe occupies the inner position and is used to vent the exhaust fumes.
If your furnace has an afue rating below 90 percent it will most likely have a flue pipe that goes up through your roof.
Each of these ameri vent gas pipes features rugged double wall construction with aluminum alloy 1100 3003 or 3105 inner pipe and corrosion resistant galvanized steel outer pipe.