I though the samething on the thermostat but then I go to thinking on how hot air pushes the cold air down.
I once layed on the steps while burning my wood stove and I could feel the cold air( a big temperture change) coming down the steps.
So I'm thinking if I could condition the air thats coming down the steps to the temperture of the thermostate the house would stay much warmer.
The thermostat will be trial and error
