DIY Network

Insulation and Exhaust Fans From "Healthy Household Workshop" episode DHHW-103

The more energy-efficient a home is, the lesser the outside pollution drawn in. The best way to make your home energy-efficient is with the addition of proper insulation.

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	Exhaust fan
	Energy-recovery fan

In a poorly insulated home, the resulting heat loss or gain can be as great as fifty percent. Air movement though insulation can also degrade the R-value, making it less efficient; air movement through a basement can bring high levels of contaminants into the home.

Insulation can block outdoor contaminants and pollutants; but if a home in insulated too tightly, it can create the same effect by holding indoor pollutants within the home. That's how exhaust and energy-recovery fans can be beneficial.

Exhaust fans can recover 60-90 percent of exhausted heat. Energy-recovery fans recover 60 percent of latent heat. Both are quiet, efficient and can be used in baths, kitchens and attics and are vented to the outside.

RESOURCES :

Health House Consumer Information
American Lung Association
Web site: www.healthhouse.org