Electric Heating Thermostats

• What is the best thermostat to use?

  When it comes to the best thermostat to use for underfloor heating, there are so many to choose from and it really boils down to what type suits your lifestyle more than others. From a manual thermostat where you simply turn a dial to adjust the temperature to changing the temperature using your voice with a smart thermostat. There’s a wide range of options from a lot of brands to choose from. This guide will help you select the one most suited to you. Read What is the best thermostat to use for underfloor heating?

• Can Nest or Hive thermostats control electric underfloor heating?

  The short answer is no. But here’s why.
  
  Thermostats like Nest are designed to switch low electrical current systems of up to 3A. Electric underfloor heating systems are high current systems and can be up to 16A and therefore you will need additional wiring and relays to use a thermostat such as Nest. However, the Nest Thermostat has no problem in controlling wet underfloor heating systems.
  
  There is also another key reason. With an electric underfloor heating system, the recommended maximum temperature to run it is 27 degrees Celsius. This is particularly important for wood or carpeted floors because any higher could result in damage to the floor finish. Typically Nest and Hive thermostats measure temperature of the air and not the temperature of the floor so you are unable to effectively set a safe temperature for the floor (i.e. 27 degrees Celsius) and therefore incur a greater risk of unwanted damage which will cost you both time and money to fix.

• Can ThermoSphere thermostats be used with other electric underfloor heating brands?

  Yes! As long as the sensor probe is 10k rated.

• How many m² of electric underfloor heating can you control on one thermostat ?

  36m² at 100w, 24m² at 150w, 18m² at 200w.

• Why can't you use another rated probe with our thermostats?

  Sensor probes work on resistance. Each temperature value is translated to a resistance value by the sensor. Each type of sensor relates resistance to temperature in a different way. For example, if you used a 15K probe in a thermostat that is programmed to read a 10K probe the temperature readings will be incorrect.

• Can I connect more than one electric underfloor heating mat to my thermostat?

  Yes. But you need to make sure the total load of the underfloor heating doesn’t exceed the maximum load of the control. Check the total load on the back of thermostat or ask an electrician.

• Can mixed output cables be installed into the same thermostat? E.g. 150W and 100W wired into same thermostat?

  Unfortunately it's a no.

• Are your thermostats Lot 20 compliant?

  Yes they all are apart from the Manual Thermostat.