Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys.
Attic furnace vent.
Mrcool 70 000 btu 95 afue upflow horizontal multi speed low nox gas furnace with 17 5 in.
Told that the 2 attic power vents are the only attic ventilation i have the house does have vented soffits every other soffit cover is vented.
It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters.
If this happens the furnace will empty gas out into the attic.
Newer high efficiency furnaces do not always have vent pipes that exit through the attic space.
A conventional natural gas furnace will vent the dangerous combustion gases through a simple vertical exhaust system that is attached to the furnace.
Box or dome vents these static vents are installed directly into holes cut into the attic roof.
I can t afford to change the furnace and foam the underside of the roof deck.
You might not receive the same air movement benefits if the unit is in a garage either.
A furnace in the attic is a design that works for all homes.
At first the fan will alleviate most of the danger by forcing the gas outside but once it shuts off it.
Noticed one of the attic vents was not working.
The ridge vent soffit vents location of the furnace and exhaust stack are the existing state of the attic s.
Help purchased home 8 years ago with 2 power attic vents.
When installed as part of a properly balanced when installed as part of a properly balanced attic ventilation system gaf cobra exhaust vent is a shingle over exhaust vent installed at the roof ridge that helps exhaust excess heat and moisture from your attic.
New high efficiency furnaces can have efficiency of about 95 percent a huge savings for your wallet.
In contrast modern high efficiency condensing furnaces exhaust much cooler gasses and need only plastic pipe materials such as pvc cpvc or abs for their exhaust vents some high efficiency furnaces also include a plastic pipe for intake area and all types.
The exhaust system typically uses metal venting often routed into a chimney stack to exhaust the combustion gases created in the furnace fire chamber.
My concern is with the hot humid air in the stem portion of the roof.
If you are unsure if you have this style the big clue is in the venting.
Things have been ok low energy bills house very comfortable.