Our house has all of the cold air vents located at the top of the walls (8 ft). Our electric furnace (with heat pump) can take up to an hour to warm one degree even when the temperature outside is in the mid 30's. Is this problem the result of the location of the cold air vents? Our thermonstat is located in a hall directly next to a room with a cathedral ceiling. Our cooling person tells us that locating the cold air vents next to the ceiling provides better circulation and heating. I'm skepticle, especially because of the increase electric cost.