Whole house fans create what is called a breeze effect. The term means exactly what it implies – the feeling of breeze against the skin caused by the movement of air. This breeze effect has a cooling, soothing and refreshing action, not just on the skin but on the entire metabolic system. This effect is usually felt only on breezy days when the windows are kept open because there is often not enough outdoor breeze to push fresh air indoors. Sometimes the wind is too strong for the windows to be left open thus stopping the airflow. When the breeze effect stops, summer or winter, the air in the house stops circulating and becomes stale and full of pollutants and pathogens. Whole house fans provide the ideal solution to this and to other problems resulting from a lack of indoor air circulation.
Quick Cooling
In extremely hot weather, air conditioning may still be required. However, if a whole house fan is turned on before the AC, it will speed up the cooling as a lot of the warm stale air will be expelled from the building, reducing the AC load and making the AC more efficient. With the AC on and all the windows closed, cooking odors along with other odors may collect in pockets of the house, even with the AC set to ventilate mode. Opening a window and running the whole house fan for a short while will get rid of the odors and staleness without making the home significantly warmer. The whole house fan is an essential complement to the air conditioner.
Read also: Keeping a Home Healthy in Winter
Evaporative Cooling
Evaporative cooling refers to the removal of the sensation of excessive warmth from the surface of the skin by the movement of air over it. Think about sitting in a room with a ceiling fan even when the AC is on. The moving air from the fan increases the comfort level that the AC creates. A whole house fan, even if it is not drawing in outside air, will create air circulation indoors and provide this evaporative cooling.
Removal of Latent Heat
Heat is measured in two forms – sensible heat and latent heat. Sensible heat refers to the heat that you can sense or feel. In other words, it is the ambient temperature of where you are. Latent heat refers to the heat that has collected in the walls, furniture, furnishings, books, and so on. Air conditioning will remove this heat slowly but while it remains, it will continue to radiate through the structure, reducing the effectiveness of the air conditioning and increasing the load on it, resulting in excessive power consumption and higher utility bills. The air circulation from a whole house fan will draw out this latent heat rapidly and efficiently.
Read also: The Importance of Ventilation at Home
Pollutant Removal
A whole house fan aids air circulation by blowing old stale air out of the house. This means that pollutants are also blown out of the house and the stale air is replaced by fresh air from outdoors.
Whole house fans are effective in keeping a home fresh and comfortable year-round. Contact the dealer of a leading whole house fan manufacturer to learn more about why your home needs one.
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