Slide the vent pipe out of the roof flashing and into the attic.
Roof vent pipe for attic furnace.
Free delivery with 45 order.
Goose neck vent the master flow 6 in.
It s made of zinc coated galvanized steel for durability and reliability.
It draws air from within the house for combustion.
This vent is designed to be used on 6 in.
Type b vents are a standard design that most modern gas furnaces use.
The master flow 6 in.
The reason exhaust pipes are insulated in unconditioned spaces your attic is because they carry warm and moist air from your home to outside.
Gases produced during combustion are very hot and as such easily rise through the flue.
Goose neck vent in black can be used to cover exhaust pipes extending through your roof or for attic ventilation.
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Enter the attic area and locate the vent pipe joint nearest the roof flashing.
If your furnace has an afue rating of 90 or lower it probably exhausts the gases though the flue pipe on your roof.
The air is then vented outside through a b vent pipe which is set vertically to expel combustion air through the roof.
High efficiency furnaces take advantage of the heat in the combustion gases that are wasted in natural ventilation systems.
Another problem is that flue pipes that go through the roof tend to be less efficient.