Comparing this configuration to a solar water heater they make the case that putting air conditioning ducts in a hot attic is an effective way to heat up the conditioned air as it travels from the air handler to the conditioned space inside the home.
Hvac unit in attic.
Choosing attic hvac systems is not.
Attic furnace access passageway and platform.
Since sunlight on the roof is the major source of attic heat attic fans are most useful during daylight hours.
Gable fans operate as two separate units on opposite sides of the attic.
Attic furnace passageway and service area electrical requirement.
The most common hvac system is referred to as a split system.
Not sure where to install your hvac system.
The following are attic furnace installation requirements based on 2009 irc and 2009 imc the codes refer to it as appliances in attics.
Regular maintenance of an attic air conditoner furnace is harder.
Attic hvac system saves space.
Both types of attic fans are popular as solar powered equipment.
Hvac units in attics have undetected problems.
One to blow in the other to blow out.
An hvac system can be an awful eyesore that destroys an interior design scheme shrinks a room and minimizes your total storage space.
Installing your hvac unit in the attic can free up space for these uses.
Especially since most people don t make use of their attic space it makes sense to move the hvac system to the attic to free up basement space.
So when we have a choice we prefer hvac systems located under the house.
In addition to making the unit hard to get to for service high attic heat can trigger the high pressure limit switch turning your condenser off.
To reset the switch you ll need to climb up into.
Attic hvac units can be inefficient.
If it s in your attic you won t have to worry about this you can use that basement closet for something else.
A common alternate is a heat pump which consists of a blower.
The inside equipment consists of a fan a furnace burner and heat exchanger and an evaporator coil for the air conditioning.
Since most homes have their hvac system serve multiple functions at once it can be cheaper to install the unit in the attic because the roof access can make inspections maintenance and repairs at lot easier.
Attic furnace installation must comply with you local mechanical code or imc international mechanical code if such was adopted in your area.