An conservative estimate cost per month is around 6 8 to run an 80w 100w fan for 12 hours a day.
Energy cost of attic fan.
Attic fans and energy costs.
It s always a good idea to run the whole house fan any time the air outside is cooler than the air inside.
There aren t a whole lot of downsides to installation.
These whisper quiet and energy efficient fans can save you up to 30 on your a c cooling costs by just cooling your attic space.
Summer may be ending but there are still many warm humid days ahead.
Most homeowners can expect to pay between 369 and 876.
The less expensive of the two types of fans is the electric attic fan with an average cost of approximately 250 to 350 installed.
Over 24 hours that would be 5 856 btu.
126 302 at 90 savings.
Quietcool attic fans allow you to turn off your most expensive appliance and cool the largest portion of your home that a c doesn t reach.
If you were supplying heat to your house with electric resistance heat at a cost of 0 14 kwh that would cost you 36 over the winter.
70 168 at 50 savings.
Attic fan installation costs an average of 593.
Ceiling fans are very useful if you have one installed in your house.
The whole house fan pulls air in from open windows and exhausts it through the attic and roof.
What is an attic fan.
Whole house fans such as those from quietcool can save 50 90 of a c electricity costs.
Good insulation reduces fan effectiveness.
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.
The downside of attic ventilation fans.
Ad the infrared rays from the sun are powerful.
It provides good attic ventilation in addition to whole house cooling.
However the utility of attic ventilation fans is actually quite a controversial topic.
This means that when you run the numbers your tower fan will probably cost 0 01 0 02 per hour to run depending on your electricity costs per kwh.
Do yourself and your energy bill a favor by installing an attic fan that will lower the temperature and lower your energy bills.
When a c typically costs 140 336 per month that s a savings of.
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.
Over 5 months that would total 878 400 btu or 257 kwh.
For example an electric fan adequate for venting a 2 500 square foot attic would cost about 149.
A solar powered attic fan will average 600 installed.
The solar attic fans all moved less than 1 000 cubic feet of air per minute cfm and they did nothing to lower the temperature inside my own attic.
Adding a humidistat would cost about 39.