Furnace In Unconditioned Attic

The unconditioned space also houses his hvac system.

Furnace in unconditioned attic. That moisture can freeze if it receives exposure to exceptionally cold temperatures. Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts. View profile view forum posts view forum threads professional member join date jun 2006 posts 36 post likes installing a 95 gas fired furnace in an unconditioned attic. According to the u s department of energy the furnace s energy efficiency can drop by 35 when installed in an unconditioned space like the attic.

High efficiency furnaces aren t usually recommended for an attic. Heated air flowing through those ducts will lose heat when the unconditioned attic is cold forcing the furnace to run longer. The 1 800 square foot brick ranch in climate zone 4 dates from the 1960s but the previous owner installed both a furnace and ductwork in the attic just four years ago. That means having it placed in the attic or a crawl space is a bad idea because you are increasing the risk of causing.

This drain removes the excess water that a heating system will generate. So why put an hvac system up in the attic at all. Attic hvac systems save space. The drain must be installed through the core of the house as water will be flowing during the colder months.

Installing a 95 gas fired furnace in an unconditioned attic. Ted also has inherited a powered attic ventilator. Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space. 06 15 2007 09 55 am 1.

An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan. 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. Well mainly it s a way to save space. Because the furnace is installed in the attic so are air ducts which deliver air to your rooms.

A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic. Most homeowners should not place a condensing furnace in an unconditioned space because the unit will produce water as it heats the air.