It does not matter. Provided that the manufacturer of the flooring products (coverings, adhesives, etc.) says they are compatible with floor-heating systems (always defer to the floor-covering manufacturer’s instructions), the installation is UL-approved.
Installation of Mapeheat Membrane below luxury vinyl flooring follows the same installation method as engineered and laminate floors: First, embed the floor-heating system within cementitious material, ensuring in 1/4" (6 mm) of coverage above the heating system. Either a mortar or self-leveling compound can be used, but achieving the desired flatness is easiest with a self-leveling underlayment. Proceed with installing the floor covering on top, following the manufacturer’s instructions.
No, only one sensor is to be connected to the thermostat. We do recommend installing a second sensor in the floor and running its wires into the junction box, but not connected to the thermostat. The spare sensor is necessary in case of failure of the first sensor.
WiFi thermostats connect to your home WiFi and enable you to control many of your floor-heating system’s functions, depending on the model. They can be conveniently controlled via the manufacturer’s app for either Apple or Android devices, or from a Web portal on your browser. WiFi thermostat control is limited to setting the minimum or maximum temperature, and activating and deactivating a program. It cannot remotely turn the floor-heating system on or off, but can enable warm-weather shutdown to ensure that your floor-heating system doesn’t run when your home’s outdoor or indoor temperatures rise. With their convenient features, WiFi thermostats are ideal for vacation homes or to track energy usage.
You can install more than one Mapeheat Mat or Mapeheat Cable to a thermostat, provided that the total draw does not exceed 15 amps. The thermostat typically holds up to 3 or 4 sets of leads before fitting the lead wires into the terminals becomes difficult.