You embed your heating element 1/4" - 3" below your finished flooring surface.

Your F15A thermostat switches a 15 amp load. If your amp load exceeds 15 amps you will need to install a load switching device.

When the F15A thermostat calls for the heating element to activate, the thermostat will either switch on your heating element or signal your load switching device to switch on your heating element.

Your F15A thermostat also includes a built-in 5mA G.F.C.I. for wet locations, and a floor temperature sensor.

The heating element will start immediately at its fully rated power output and warm the floor to your desired setpoint temperature.

For best results the R-value of the floor should be kept under 2.5.