Homes today are built tighter and more energy efficient. Tight homes can cause cause drafting problems. When a chimney can't draw fresh air from the home, smoking problems can occur. Our fresh air kits can help solve that problem. Installs through an outside wall to let fresh air in where your heat appliance is located. Works by taking advantage of the negative air pressure of tight homes. Made in the USA. Fresh Air Supply Vent Regular price: $79.95 Sale price: Fireplace Fresh Air Vent Regular price: $89.95 Sale price: Copyright © 2008 Chimney Depot Inc. All rights reserved.