Attic Furnace Ventilation

The exhaust system typically uses metal venting often routed into a chimney stack to exhaust the combustion gases created in the furnace fire chamber.

Attic furnace ventilation.

Attic hvac systems save space. Insufficient ventilation can lead to moisture problems during the winter and decreased energy efficiency during the summer but too much ventilation can be just as bad if not worse. The roofers installed 4 passive roof vents 3 being in the area of the furnace in the attic. Utility room is not closed off in any way to the rest of the house.

A furnace in the attic is a design that works for all homes. Well mainly it s a way to save space. Hi everyone i ve visited this site a couple times but this is my first post. There are 3 gas furnaces and ac units.

Attic fans perform this ventilation by pushing hot air out into the environment while also pulling fresh cool air into the attic. A conventional natural gas furnace will vent the dangerous combustion gases through a simple vertical exhaust system that is attached to the furnace. The stem of the t has soffit vents and no vent at the top. Original installers used pvc to vent the furnace to the roof but combustion air for the furnace is pulled from inside the house.

If you don t have a crawl space or a basement then it can be a challenge to place a furnace on the ground floor of the structure. Attic ventilation with gas furnace in attic previous to this new roof there was no attic ventilation and 2 years ago a gas furnace ah was installed in the attic for hvac on the second floor. Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts. One of the furnaces is in the attic.

Newer high efficiency furnaces do not always have vent pipes that exit through the attic space. So why put an hvac system up in the attic at all. If you are unsure if you have this style the big clue is in the venting. Just like properly sizing your furnace and air conditioning unit you want precisely the right amount of attic ventilation for your home.

The furnace is located in the stem. It comes on an easy to install flexible mesh roll and is hand nailable with no complicated fitting wrapping nail gun adapters. An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan. You might not receive the same air movement benefits if the unit is in a garage either.

The roof is a t shaped gable roof. Recently moved into home in eastern ma zone 5 and have a 2 story 3k sqft home. 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.

The top of the t has soffit vents and a ridge vent.