Cold air intake utilization is an efficient way to use your existing furnace “Fan on” mode to help circulate the cool air that is drawn in by the whole house to your entire home.
By turning on the fan of your furnace or air handler air will be drawn into your cold air intake as the cool air being drawn in from the whole house fan passes over it. One advantage of this technique is that you only need to open one or two windows to cool your house and not five or six. Some home owners don’t feel comfortable opening too many windows due to burglary. A second advantage of this technique is that you are filtering the outside air with your cold air intake filter making air quality even better.
Spend a little over a minute watching the video that explain how QuietCool whole house fans work