My mother, in Minnesota, has a Carrier Weathermaker 8000. The installer ran a fresh air intake from the outside of the house and down along the side of the furnace, to about 12" above the floor. It spills cold air into the house even when the furnace isn't operating.
Should this have been brought directly into the furnace? Any suggestions on how it can be set up so that air only enters when the furnace operates?
Thanks.