Summer may be ending but there are still many warm humid days ahead.
Energy cost of attic fan.
The whole house fan pulls air in from open windows and exhausts it through the attic and roof.
Over 5 months that would total 878 400 btu or 257 kwh.
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.
70 168 at 50 savings.
Attic fan installation costs an average of 593.
There aren t a whole lot of downsides to installation.
Do yourself and your energy bill a favor by installing an attic fan that will lower the temperature and lower your energy bills.
It s always a good idea to run the whole house fan any time the air outside is cooler than the air inside.
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.
What is an attic fan.
The difference in the rate of heat flow is 244 btu h.
Most homeowners can expect to pay between 369 and 876.
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.
It provides good attic ventilation in addition to whole house cooling.
Whole house fans such as those from quietcool can save 50 90 of a c electricity costs.
Depending on the quality of the unit you choose location and add ons the project can run as little as 200 or as much as 1 300.
The less expensive of the two types of fans is the electric attic fan with an average cost of approximately 250 to 350 installed.
However the utility of attic ventilation fans is actually quite a controversial topic.
Many people confuse attic fans with whole house fans but they are not the same thing.
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.
Ad the infrared rays from the sun are powerful.
When a c typically costs 140 336 per month that s a savings of.
Adding a humidistat would cost about 39.
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.
An conservative estimate cost per month is around 6 8 to run an 80w 100w fan for 12 hours a day.
Attic fans and energy costs.
For example an electric fan adequate for venting a 2 500 square foot attic would cost about 149.
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.
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.
The downside of attic ventilation fans.
Ceiling fans are very useful if you have one installed in your house.
Over 24 hours that would be 5 856 btu.