My house is a bungalow with a fully finished walk out basement.
I am planning on replacing my furnace including a new return drop. Currently there is a basement return attached to the existing drop (please see attached pic). I don't know what to do with it:
One contractor felt that this return was likely sucking in a lot of the return air. He suggested reducing the size of the return duct to 6 inches before reattaching to the return drop. I question a 6 inch return duct for a basement of about 1200 square feet.
Another contractor suggested using something like a louvered cover to control the air flow through the basement register (on the other side of the wall). I might add that I can hear the beast of a motor for this furnace running sitting in the basement. I can't imagine the whistling that may occur!
The third option which I contemplated was to have them move the return for the basement. I could probably place a return register on a wall underneath the stairs to the basement--> this return would then travel up towards the ceiling of the basement and attach to the main return trunk from upstairs. I do not know how large this return register should be as the current basement return register is about 8 x 14 inches.
Here is the picture:
Thanks in advance for your feedback!
Links updated. I'll look for another server to host.
[Edited by zhewie on 10-15-2006 at 01:53 PM]