Hi,
I live in a three split level house, about 6 stairs separate the
floors. This is our first year in this house and we are worried about
a high heat bill in the winter. We have central heat and air with
floor air vents. These vents have small switches that can open and
close the air flow, yet it doesn't seal off completely all air flow. I
work from home and am hoping we can direct the heat to the lower and
middle levels during the day, while not heating the top level to save
on costs. Is there any kind of cover we can buy to completely seal off
air flow in the rooms not wanting heat?
My husband thinks we can just put cloth on top of the vents but this
seems like a fire hazard to me.

Any information would be helpful.

thanks-jennie