Hello all,

I have a wood furnace in my basement with central forced air, and
right now (all winter so far) I have been leaving the basement door
open so that the cold air return is sucked down the stairs.

I'm considering connecting up the returns to the furnace so as to make
a closed system, and I wanted to know if this makes much of a
difference in fuel usage and/or house temperatures. Right now, the
furnace has a struggle with a 50-degree difference outside vs. inside,
so if its 20F outside, I can almost not reach 70F inside.

Any experiences welcomed here.

Thanks

DeanB