We just finished our install and tested the system. We set the system to 104 about 2.5 hours ago. It seems to have stopped heating at 82-83 degrees. Is this normal?

The floor is ceramic tile on concrete.

Don

More information. I checked the voltage from the source and then at the wires to the floor. I get .5 volt drop.

Don, sorry about the wait on a response. Is the concrete slab insulated? If not, you may be dealing with heat loss to the slab, in which the heating system is going to want to heat the cooler concrete before you start feeling heat through the flooring. This generally causes longer warm up times as well as lower temperatures at the floor. Please give our technical support staff a call, and we will see what we can do for you.

Seth