I recently bought a house that was built in '57 its on a slab fondation. When the furnace is on the pipe going to the vents get extremly hot but by the time it goes through the fondation it is luke warm. Is there any thing I can do? thanks for the help.

Is it possible to insulate you pipes that carry the warm air? I know they make an insulation with a foil back for reflecting your heat. Sorry Bob Villa, but I saw something on "This Old House" just the other day. They also have some type of insulation that is bubble pack-type material in the middle and has foil on both sides. That is the stuff they used on the program. Hope that helps a little.