When you use a window air conditioner unit, the cold air sits in the room with the unit, but it doesn't really cool much more of your living space. The same applies to heat from a fireplace or heater. This Door Frame Fan Door Frame Fan promotes better air flow between rooms, which help distribute cool air or heat through the house. It's a smart way to optimize the effectiveness of your heating/cooling system, and it only costs pennies a day to run.
Stay comfy, order now!