So yay or nay.
Attic fan furnace.
Strong attic fans can actually back draft furnaces or water heaters by pulling combustion gases out of their burnersand into the home.
A retrofit example that works.
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.
Attic fans also called whole house fans are specifically designed to cool your home using the outside air.
The cmf2 series furnace is a classic and the cmf2 series furnace is a classic and time honored design.
Whole house fans should provide houses with 3 to 6 air changes per hour varies with climate floor plan etc check with a professional to determine what is appropriate for your home.
This american designed fan is designed to reduce attic temperatures and remove destructive moisture thus making your home more comfortable and reducing the load on your hvac system and lowering your electricity bills.
The fan is attached to the floor of the attic usually above a main hallway or living space.
They say this can create negative pressure that could pull the co back in from the furnace chiminey.
When you turn on the fan and open the windows in the house outside air is drawn in through the windows and up through the attic where the hot inside air is vented out of the home.
A furnace in the attic is a design that works for all homes.
Good attic ventilation is excellent for preventing moisture and condensation but it is usually not enough for cooling in the summertime.
Typically this indoor unit gets placed in a cabinet or closet somewhere inside.
Ridge vents or gable vents will not work in this application do to the shape of the roof.
If this happens the furnace will empty gas out into the attic.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
You might not receive the same air movement benefits if the unit is in a garage either.
So why put an hvac system up in the attic at all.
The new model cmf2 furnace incorporates a multi speed blower and multi fired burner.
The cmf2 is a versatile and reliable product such as space heating garages hunting camps or single story residential structures.
Well mainly it s a way to save space.
From my studys i have learned that it may not be safe to have an attic fan with a furnace up there that vents through the roof as well.
An attic fan can create enough draft to blow out a pilot light on a furnace.
It provides good attic ventilation in addition to whole house cooling.
Attic fans work best at night when the outside temperature cools and that air is drawn into your warm home to.