The following are attic furnace installation requirements based on 2009 irc and 2009 imc the codes refer to it as appliances in attics.
Furnace for attic install.
Replacing a gas furnace runs from 3 800 to 10 000 or more for high efficiency models in complex installations.
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.
A furnace can suffer from a drop in energy efficiency if it s in an unconditioned space such as an attic.
Attic furnace access passageway and platform.
The drain must be installed through the core of the house as water will be flowing during the colder months.
The furnace should be installed on rubber pads to help reduce noise.
Attic furnace installation must comply with you local mechanical code or imc international mechanical code if such was adopted in your area.
High efficiency furnaces aren t usually recommended for an attic.
Most of the issues that furnace might experience in an attic are due to extremely cold weather in this poorly insulated space.
That makes cheaper to replace a broken unit while reducing the cost for repairs.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
Installing or replacing a furnace costs 5 500 with a typical range between 2 571 and 6 214 including materials equipment and labor.
A furnace in the attic also costs less to install than other designs since the access point to it is usually through the roof.
If the furnace is in the attic it should be equipped with a drain pan to catch condensation during normal use.
Attic hvac systems save space.
If you are installing the unit in a basement it should be raised four inches from the ground.
To estimate costs for your project.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Electric models run slightly less at 2 000 to 7 000 labor costs make up 500 to 2 000 of the total project budget.
Well mainly it s a way to save space.
Even when furnaces are put on the main floor floodwaters often overrun the first floor causing severe damage to the unit.
Actual costs will depend on job size conditions and options.
In flood prone areas instaling a furnace in the attic provides protection.
For a basic project in zip code 47474 with 1 furnace the cost to install a furnace starts at 2 438 2 902 per furnace.
This drain removes the excess water that a heating system will generate.
Attic furnace passageway and service area electrical requirement.