With all that said you can generally count on attic placement being a bad idea in part because high efficiency furnaces which dominate the market today just can t function in attic space usually due to both the volume of air necessary for operation and because of safety considerations.
95 furnace in attic.
The cost profile for a furnace in the attic is competitive.
Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space.
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.
In an invented environment like this the 95 efficiency furnace is a safer choice because it will be installed with pvc pipe to draw in outside air and vent the exhaust to the outside.
If you want to purchase a mid efficiency furnace for your home then the price profile for the equipment is similar with a downflow model compared to an upflow one.
The drain must be installed through the core of the house as water will be flowing during the colder months.
Expect to pay around 1 000 for the equipment along with another 1 000 to install it for most geographic locations.
While the traditional spot to locate a residential furnace has been the basement there are many reasons why putting it in the attic is more convenient.
Efficiency losses in unconditioned spaces outweigh gains.
High efficiency furnaces aren t usually recommended for an attic.
A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic.
Given the tight quarters of most attics servicing an attic furnace may be more challenging but the.
I remember when the 90 furnaces first came out i sold one to replace a horiz 80 in the attic which had an ac evap coil connected to it.
Attic furnaces are becoming more common in both residential and commercial buildings.
If your furnace is in a sealed attic or encapsulated crawl space open combustion can be a real safety issue.