Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool.
How to install attic fans to cool hvac in attic.
So why put an hvac system up in the attic at all.
If the attic fan increases the comfort level of the house it may be worth it.
The whole house fan is installed inside the attic between the living space and ceiling.
Alternatively install passive vents such as gable soffit and ridge vents which are openings in the roof that allow hot air to escape.
Attic fans push out the hot air and pull in the cool air from the vents installed on your roof.
The thermostat is the box you ll use to control the attic fan.
Most updated central air conditioned homes have a new air conditioner split system meaning the ac is broken up into parts.
It helps to cool your home temperatures and the attic by approximately 30 degrees.
Rooftop fans and gable fans.
There are two basic types of attic fans.
In existing homes the question is important.
If you don t worrying about how best to keep the attic cool is a bandaid on a self inflicted wound.
Mount the fan thermostat to a nearby rafter inside your attic.
The two most popular spots in the house to install an hvac unit are the attic and the basement.
Attic hvac systems save space.
The downside of attic ventilation fans.
Well mainly it s a way to save space.
Once you re back in your attic look for a rafter that s close to your fan and screw the thermostat into it using the screws that came with the fan.
They have thermostats that turn the fan on at a recommended preset temperature of 100 110 degrees.
Yes installing an attic fan raises the electric bill.
If the attic fan keeps the house cool enough so that the owners leave the ac off there is almost certainly an energy benefit.
Unless you plan to convert your attic to a living space it doesn t make sense to seal it and route your hvac vents up there.
However the utility of attic ventilation fans is actually quite a controversial topic.
But you can install attic fans which will continuously replace the stagnant air with fresh outdoor air preventing your attic from turning into an oven.
Good insulation reduces fan effectiveness.
An outdoor unit which houses the fan condenser and compressor and an indoor unit which holds the evaporator and fan.
Install electric ventilators and attic fans which remove hot air from an attic.
The warm air escapes through the attic and to the attic vents allowing the circulation of chilly air from the windows.
Whole house fans work on the principle of removing the hot and humid air out of the house.
Again i m assuming that you re not considering a sealed attic lowering the temperature of an attic that contains ducts can reduce your air conditioning costs.