Attic Furnace Detail

An attic in which a fau is installed shall be accessible by an opening and passageway 30 x 30 in size.

Attic furnace detail.

Well mainly it s a way to save space. Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts. Attic access may be reduced to 22 x 30 provided the. This drain removes the excess water that a heating system will generate.

The following are attic furnace installation requirements based on 2009 irc and 2009 imc the codes refer to it as appliances in attics. So why put an hvac system up in the attic at all. Establish the best location for installation of forced air unit and vent. An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.

A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic. The trick to the installation of a gas furnace in an attic space is routing the condensate drain from the attic down through the core of the house to the basement. Residential furnace attic p p 32 updated 08 05 2020 hluu page 1 of 1 building safety division plans and permits development services center 39550 liberty street fremont ca 94538 p. High efficiency furnaces aren t usually recommended for an attic.

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. A home s furnace is commonly located in a secluded area from a closet to a basement. Bldinfo fremont gov www fremont gov attic furnace 2019 california mechanical code. It will not require long lengths of pipe to deliver heat to the rooms as a basement furnace does.

You might not receive the same air movement benefits if the unit is in a garage either. How to maintain an attic furnace. Attic furnace access passageway and platform attic furnace passageway and. A furnace in the attic is a design that works for all homes.

Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space. An attic furnace is closer to the upper stories of a multi level home. The drain must be installed through the core of the house as water will be flowing during the colder months. Obtain the furnace manufacturers installation instructions and install the furnace to their specifications.

Attic furnace walkway platform attic furnace installation must comply with you local mechanical code or imc international mechanical code if such was adopted in your area. Attic hvac systems save space. Air ducts lose a fair amount of heat through leakage so shorter lengths are more efficient.