Furnace Venting Into Attic

These types of furnaces have a dedicated pipeline that runs directly from an outside vent into a sealed combustion chamber of the furnace and a sealed vent to the outside of the home.

Furnace venting into attic.

You may have a bad boot around the roof vent that is leaking into the attic. I have a bathroom exhaust fan that is vented directly into the attic. There are 3 gas furnaces and ac units. One of the furnaces is in the attic.

A furnace in the attic is a design that works for all homes. 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. The exhaust system typically uses metal venting often routed into a chimney stack to exhaust the combustion gases created in the furnace fire chamber. Taking care of the vent on your gas furnace is extremely important but working improperly and damaging your vent can have catastrophic results.

12 07 2009 11 36 am 21. Also known as the type b this vent is operating on the natural air convection. The top of the t has soffit vents and a ridge vent. The stem of the t has soffit vents and no vent at the top.

This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner. It has started to leak water back through the exhaust fan into the bathroom. When the vent is withdrawing air from the house it expels the gas outside through the vent. The furnace is located in the stem.

Joe downs december 31 2017 at 1 47 pm. The drain must be installed through the core of the house as water will be flowing during the colder months. This drain removes the excess water that a heating system will generate. See comment 3 above.

If any gaps remain and the vent isn t airtight the toxic gases will leak back into your home. Original installers used pvc to vent the furnace to the roof but combustion air for the furnace is pulled from inside the house. You might not receive the same air movement benefits if the unit is in a garage either. Recently moved into home in eastern ma zone 5 and have a 2 story 3k sqft home.

This means that 10 percent or less of the possible energy found in the natural gas that can be used for heat is lost during the combustion process due to venting. A conventional natural gas furnace will vent the dangerous combustion gases through a simple vertical exhaust system that is attached to the furnace. The roof is a t shaped gable roof. This undermines the entire purpose of venting the furnace in the first place.