||09-27-2012 11:09 PM
using ceiling registers w/furnace in basement
I live in the North East and have a single story 825 sq ft home and will be installing new gas furnace/AC. The basement is partially finished. I have ceiling registers with my current AC unit which is more than 12 yrs old. I would like to install a 90 + AFUE system with AC coil in the basement and run the supply through a closet from the phluem to the attic and utilize the current insullated duct work. I have reversible fans in each room and would place the return close to the floor. I was told that I don't have much space to heat so the ceiling registers are fine even though heat rises; so thats where the lower return vent comes in. I realize that this would not be as efficient as running new duct work and cutting through floor or walls for new registers. Considering the problem of condensation with high efficiency units as well having a humidifier installed with unit I figure this would be a good alternative. Is this a practical design layout? Each contrator seems to have their own different idea and I'd prefer to tell them what I want even though its not commonly done.