We recently added an addition to the rear of our house and, now that it's summer, have noticed that the area of the house where the addition was added from no longer gets adequate ventilation (AC) to cool the room to the temperature of the rest of the house. The house is a split level on a hill with the lower level being mostly underground. Becuase of this, the lower level is consistantly 10 degrees or more cooler than the upstairs.
I was thinking last night of ways to move the air around the house a little better. Is there such thing as a simple floor vent fan that looks like a floor vent of the A/C system but is really just a simple tube run through the floor into the basement with a small fan blowing the cooler basement air up?