There are electric radiant heaters that ceiling mount. Some are panels alot like 2x4 ceiling panels. Others are designed to mount where the wall meets the ceiling. They radiate infra-red heat. I don't know how that will interact with the cold floor. Maybe a carpet and pad would be enough insulation on the floor.

Thank you both for your advice. The cold floor is what I really want to address, so I will look further into the radiant heat. I live in New England and use quite a bit of heating oil in the winters, and that is very costly. So I will make sure not to have radiant heaters (?) put directly on the cold cement slab. Thanks again.

Have you checked out "Cove Heating??" Cove heating is a "reflective" looking shield that mounts on the wall, about a foot from the ceiling. It heats objects great for keeping your cement floors be warm. I have been replacing some of my baseboard heaters with them, using the existing thermostates and wiring. They are MUCH safer being mounted higher on the wall.....I think this would and affordable compared to putting heat in your floor. Check it out.

Gary

Thank you for the advice. I certainly do care about the cost of heating oil. I live in New England with very cold winters.

I will definitely look into aluminum baseboard.