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Placing a radiant floor heat thermostat

Have you wondered how and where to correctly place a radiant floor heat thermostat? We’re here to help.

STEP Warmfloor, thermostat

Have you wondered how and where to correctly place a radiant floor heat thermostat? We’re here to help.

The placement of a thermostat for radiant floor heating, like the STEP Warmfloor product from, is critical to ensure comfort as well as efficiency. Depending on the type of electric radiant heating system you install, it may be important to place the thermostat in a location that will allow easy access for wiring to a low voltage transformer, to the electrical panel or with the electric mats. For obvious reasons, the location of the thermostat should always be in the same room as the heating system you want to control.

If the thermostat is installed near a heat source such as a heat vent, the thermostat will be fooled to think that the temperature in the room is already warm and will not turn on the electric radiant system. The same thing occurs when sunshine enters the room. If the sun rays shine on the thermostat it will raise the temperature near the thermostat and keep the system off. Remember that solar heat gain for a home is very helpful in lowering energy costs and it’s highly encouraged to keep your window shades and drapes open during the colder winter months. However, if the thermostat is placed in a location that is away from heat sources and direct sunlight, it will respond more accurately, keeping the room at a temperature that is better suited for the occupants.

It is extremely important to place a thermostat on an interior wall as opposed to an exterior wall. With placement on an exterior wall, the thermostat will most likely be sensing cooler air temperature and cause the system to turn on well above the normal temperature set point. This can lead to a condition called overshooting that will cause discomfort resulting from temperatures that are above the comfort zone of the homeowner. It is also important not to place the thermostat near a window due to the air draft that can leak through even with the best insulated windows on the market. Interior walls are also recommended because they are more accessible for wiring.

All types of basic radiant floor heat thermostats are available with a digital readout or with an analog display. This means that each thermostat can be set to a chosen temperature. Digital thermostats that are capable of monitoring the energy consumption of your system are also available and work through a simple phone app.

With electric radiant floor heating systems offered by, you can leave your system at a comfortable setting and save energy costs. If you leave the home for any extended period of time, like a week or two for vacation, simply shut off the system and turn it back on when you return.

We hope this gives you some direction in choosing the ideal thermostat location for your radiant floor heating system. For more information, contact at (800) 785-8738, or fill out our online form.