Furnace Vent Into Attic

Below are three types of venting for gas furnaces.

Furnace vent into attic.

The exhaust system typically uses metal venting often routed into a chimney stack to exhaust the combustion gases created in the furnace fire chamber. Before you can insulate your attic you need to properly seal the chase for the furnace vent pipe. When the vent is withdrawing air from the house it expels the gas outside through the vent. So why put an hvac system up in the attic at all.

A furnace in the attic is a design that works for all homes. There are 3 gas furnaces and ac units. Also known as the type b this vent is operating on the natural air convection. It draws air from within the house for.

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. One of the furnaces is in the attic. Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts. This structure generally uses the furnace vent pipe through roofbecause the b venting pipe is designed in vertical manner.

See comment 3 above. The top of the t has soffit vents and a ridge vent. Well mainly it s a way to save space. An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.

Joe downs december 31 2017 at 1 47 pm. If the waste gases come into contact with other combustibles a fire can easily break out. The furnace is located in the stem. You might not receive the same air movement benefits if the unit is in a garage either.

A conventional natural gas furnace will vent the dangerous combustion gases through a simple vertical exhaust system that is attached to the furnace. Type b vents are a standard design that most modern gas furnaces use. You may have a bad boot around the roof vent that is leaking into the attic. It has started to leak water back through the exhaust fan into the bathroom.

I have a bathroom exhaust fan that is vented directly into the attic. It operates on natural air convection and is also known as the type b vent. Step by step guide to sealing furnace vent pipe. 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.

Traditional gas fired forced air furnaces produce hot combustion exhaust gasses and therefore need metal vent pipes or chimneys. If you are unsure what vent pipe your furnace uses check the manufacturer s specs. Recently moved into home in eastern ma zone 5 and have a 2 story 3k sqft home. The stem of the t has soffit vents and no vent at the top.

Attic hvac systems save space.