Product review (5 stars): Easy way to use some of your dryer heat
I attached the Heat Keeper in line of my dryer vent hose and secured it to a nearby post. I close it for the first 15 minutes of drying and then I open it for the remainder. Wow. It really does take the edge off of a cold garage. I have it set up so that it blows over the top of the washer, and if I wash some old tennis shoes, I can let the warm air run over the top of the shoes and dry them quickly. Neat and cheap.