A whole house fan is a ventilation cooling system for the home that uses less energy than a traditional air conditioner. This energy efficient system works by pulling cooler air from the outside of the home to the inside, creating active cross breezes with open windows.
Since it is normally cooler in the evenings, this would be the best time to turn on the whole house fan. Homeowners simply open a few windows and the whole house fan will cool and ventilate the entire home. When sized properly whole house fans can exchange the entire air in the home every 3-4 minutes, or 15-30 times per hour.
When running the system for several hours, all the hot air will be pulled out of the mass in the home. This process is called thermal mass cooling. Because the hot air is vented through the attic to the outside, the home stays cooler the next day as well. The home will feel fresh and cool with a whole house ventilation fan.

Whole house fans have many benefits besides just cooling the home and help reducing electricity costs.
Whole house fans work great to improve the indoor air quality of a home by exhausting and ventilating the hot, stuffy and polluted air in the home.
Many homeowners think that the air outside is dusty and dirty and oppose to opening their windows. However, according to the American Lung Association, the air inside the home is up to 2-5 times more polluted than the outdoor air. This is due to the chemicals that are used in the home, pet dander, germs, allergens, etc.
Contact Macro Mechanical Inc. to get your Quiet Cool Whole House Fans installed and start saving money on your HVAC-R system now.