April 21, 2017

Power Venting with QuietCool

Attic ventilation is very important for a QuietCool whole house fan to operate properly. Most homes, especially new construction homes, have more than sufficient venting in the attic. However, some older homes were not built with an ample amount of attic venting. This can cause issues with whole house fans.

Attic Ventilation Required

The amount of attic venting required directly relates to the amount of CFM (cubic feet per minute) being pulled through the home. 1 square foot of net free venting is required for every 750 CFM in the whole house fan system. This means for a 1500 CFM fan you would need 2 square feet of venting. If there is enough or more attic venting than required, a QuietCool fan can be installed and work efficiently.

The homeowner has two options for increasing venting if they do not have enough. The first option is simply adding more vents! Most homeowners do not like this option since cutting into the structure of the home can be tricky. It can also compromise the integrity of the home causing problems in the future.

Power Ventilation with Attic Fans

The second option is much simpler. Whole house fans can be paired with one of our attic fans creating a power vented system. Power venting happens when an active force (attic fan) is actively exhausting the air in the attic through the attic vents, directly outside, instead of waiting for the whole house fan to pressurize the attic and the air to exhaust naturally.

QuietCool attic fans do require a gable or dormer vent to be properly mounted. Once the attic fan is installed, a perfect tandem is formed with the whole house fan. Whole house fans are the bread and butter of QuietCool but they can only run when the outside temperature is cooler than the air inside the home. Combined with an attic fan, the homeowner has 24/7 coverage. This way, the attic fan can help keep the attic cool even during the hottest summer days!

Do not let inadequate attic venting stop you from purchasing a QuietCool whole house fan for your home! Power venting with 24/7 coverage will help ensure your A/C related costs are slashed and your HVAC system lasts as long as possible!


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