Size Attic Fan Needed

Cool your home without the use of air conditioning and replace stale air with fresh outdoor air in your entire home with the help of a whole house fan.

Size attic fan needed.

Whole house fan sizing calculator. In terms of sizing your ceiling fan for your bedroom there are two common size options for bedrooms. To determine the size of your attic multiply the width by the length of the attic floor in feet. To facilitate faster air exchange would necessitate choosing a fan with a higher cfm.

Find the overall air volume of your home. Then enter the height at the highest point. Multiply the total air volume in cubic feet by 30 which represents a complete air change every 2 minutes. 972 499 4550 view cart.

Next multiply the square feet of attic space by 0 7 to get the minimum number of cubic feet of air per. How to size a whole house attic fan. 17600 cubic feet 1600 11. Enter the length and width of your attic or ceiling crawl space.

What this means is that every eleven minutes the air in the home is being exchanged by a fan of this rating along with having windows open in each room. Then click on calculate. You will want to check your fan to ensure that its cfm rating is anywhere between 1 600 and 4 500. How to know what size whole house fan you need.

Calculate how many solar attic fans you need to achieve proper ventilation with this free helpful attic fan size calculator from energy efficient solutions. Multiply length times. Radiant barrier foil. Attic fan size cfm 0 7 x sq ft area of the attic formula 1 the size of an attic fan is calculated in terms of cfm.

Measure the length and width of each floor of your home with the tape measure. How to size attic exhaust vent fans for your home attic size. Some professionals multiply the square feet value with 0 6 instead of 0 7. Select if your roof is more flat of peaked.

Cfm cubic feet per minute is a measure of the amount of air the fan moves in a minute. The formula above gives an approximate value of the cfm needed for an attic fan.