Radiant Heating: Warm tile floors
The Old House Web
The mat contains a sensor and the system operates only when the floor drops below a cetain terperature. The system can also be used with a timer. Installation by flooring, electrical or general contractors is recommended to meet local building and electrical codes.
The mat cannot be installed directly below vinyl, carpet or wood flooring. It must be embedded in concrete or mortar. SunTouch mat retails for $15 to $20 per square foot, depending on the size of the room and the type of controls needed (January 2005).