Attic Fan Vs No Attic Fan

Attics have been known to reach temperatures as high as 130 degrees.

Attic fan vs no attic fan. If your home has an attic you are probably aware of how hot it gets in the summer. The average attic fan draws less than 300 watts making it seem like an energy efficient home improvement but some professionals in the field claim that attic fans are not a cost saving investment. Even though an attic exhaust fan can incrementally lower the temperature of a very hot attic using a fan does not stop the source radiant heat. While quality attic fan is designed specifically for the removal of air on the attic with the gable vents exhausting the hottest atmosphere the whole house fan just brings in cold air from outside.

The attic fan on the other hand blows warm air out through the roof or a gable vent and the fresh air is drawn in through the roof and vents. Because heat rises it becomes trapped in the attic and without proper ventilation the heat has nowhere to go. Most fans cannot keep up. Without any air movement temperatures in the attic soar in summer and plunge in winter.

The whole house fan pulls the warm air from the living rooms into the attic and fresh air is drawn in through open doors and windows. This will help to avoid premature damage to the shingles or mold building up in moist hot. There is a cost factor to consider with a solar attic fan. Compared to the attic fan which only exhausts air from the attic and doesn t provide a cooling solution to the living area.

Iliving 800 cfm shutter exhaust fan at amazon this fan can easily remove excess heat moisture and odor from any space up to 1 200 square feet. Air movement in the attic helps prevent moisture buildup on rafters and on the bottom of roofing materials. An attic fan works by exchanging the hot air in your attic space for fresh air pulled through the vents. Quietcool smart 2830 cfm power gable mount attic fan at amazon this model is our top pick for its ease of use simple installation and maximum energy efficiency best budget.

Attic fan vs whole house fan. Without ventilation unfinished attic spaces can end up having stagnant air. Many users however claim an attic fan is a money saver but they do not offer documented proof of the savings. During the day any cooler air brought in by the fan will be heated up immediately by the surrounding structure.

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.