How To Size Solar Attic Fan

The formula above gives an approximate value of the cfm needed for an attic fan.

How to size solar attic fan.

The price of solar attic fans requires a greater capital cost for homeowners compared to the traditional models. Help determine optimal sizing of solar attic fans. Solar attic fan sizing calculator. Although you can recoup the initial expense through your energy cost savings over time there is a barrier to entry with this product that may be too much for some consumers.

To start enter the length width and height of your attic. For a single story house this is. Use this estimator to help figure out how many attic fans you will need. Alternatively for more precise calculations you can provide your actual floor area.

Fan size most attics are around the same square footage as your home. To determine the size of your attic multiply the width by the length of the attic floor in feet. 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. Cfm cubic feet per minute is a measure of the amount of air the fan moves in a minute.

This attic ventilation calculator computes the size and number of solar powered attic fans to achieve the proper ventilation for your attic. There is a cost factor to consider with a solar attic fan. Too high of a cfm and you ll be spending. A steep roof will increase internal attic volume and a dark roof will increase energy absorption from the sun.

How to size attic exhaust vent fans for your home. How to size solar attic exhaust vent fans so we developed our solar powered attic fan sizer calculator. Ft of your home by 0 7 will give you an approximate minimum cubic feet of air a fan should be able to move per minute.