Hi,
What is the source of heat for the underfloor system?

Gary

Electricity

Hi,
Since they are both electric, maybe it does not make a whole lot of difference.

The electric baseboard is going to be nearly 100% efficient. The radiant floor heat may have some heat losses to whatever is underneath the floor, so it may not be as efficient.

Gary

All electric heaters use the same amount of energy to make heat. However, many people find that radiant floor heat "feels" warmer and allows them to set the temperature lower than they otherwise would.

Hi Bill,
The study that Canada Mortgage did on whether people really set the temperature lower with radiant heat seems to say they don't -- see the attached link.

I guess to me it would make a lot of difference how well the slab is insulated underneath. It seems to me that adding radiant heating above a slab that is not insulated well underneath could be a real heat sink.

Gary

Here is a link that might be useful: Radiant floor heating