I have a bi-level house in Michigan. The lower level is much cooler than the upper level, which is awesome except we're trying to move my 1-year old son to his own room down there but it's much ...
The cold air return in this house is in the floor, in the most-trafficked part of the house. It has a heavy grating over it. My kids' toes are small enough to fit in the gaps, which is very painful ...