Where is the temperature probe typically installed for underfloor heating mats?

Where is the temperature probe typically installed for underfloor heating mats?

• A. In the floor
• B. In the wall
• C. In the ceiling
• D. In the thermostat body

Answer: (A)

For underfloor heating mats, control is based on the temperature of the floor where the heat is delivered, so the probe is placed in the floor. This ensures the thermostat reads the actual surface temperature and prevents overheating of the flooring while keeping the surface warm and comfortable. The sensor is typically tucked into a shallow groove or installed in a protective sleeve under the mat (often in the screed or floor substrate before finishing). Placing the probe in a wall or ceiling would only measure room air and not reflect the floor temperature, leading to improper heating. Putting the sensor inside the thermostat body wouldn’t sense the heated floor at all.

For underfloor heating mats, control is based on the temperature of the floor where the heat is delivered, so the probe is placed in the floor. This ensures the thermostat reads the actual surface temperature and prevents overheating of the flooring while keeping the surface warm and comfortable. The sensor is typically tucked into a shallow groove or installed in a protective sleeve under the mat (often in the screed or floor substrate before finishing). Placing the probe in a wall or ceiling would only measure room air and not reflect the floor temperature, leading to improper heating. Putting the sensor inside the thermostat body wouldn’t sense the heated floor at all.