Herschel T-MT Mains powered Wifi thermostat
(4 reviews)
T-MT Mains powered Wifi thermostat

Next Day Delivery

2 year warranty

Reduce heating Cost

Energy efficient

Easy Installation

Zero Maintenance

Herschel T-MT Mains powered Wifi thermostat

(4 reviews)

Key Features:

  • Energy-saving (Lot 20) features
  • Mains or USB powered
  • Digital display
  • App Enabled
  • 7 x 1 day programmable
  • Open window & adaptive start
  • Can control multiple heaters

Find Out More

  • Description


    Herschel T-MT is a mains or micro USB powered compact thermostat control designed to work exclusively with Herschel XLS heaters with their built-in SMART-R receiver.

    T-MT also has Wifi capability to allow you to control your heating remotely via the Smartlife App or by voice control using Alexa or Google Assistant.

    T-MT features a manual temperature mode, a 7×1 day program mode and a holiday (or Away) mode. All modes will operate your Herschel heater(s) by turning them ON if the room temperature is lower than the desired temperature and will turn them OFF once the desired temperature is reached or exceeded.

    The T-MT is designed to be easy to operate and incorporates the latest energy-saving features including Herschel’s open window technology and an adaptive start function ensuring your room is always at the right temperature with the least energy use.

    The T-MT can  be paired to more than one heater meaning multiple heaters within the room can be controlled with the same T-MT thermostat.


    Note: The T-MT will only work with Herschel XLS heaters. It is not possible to operate the T-MT with any other brand of infrared heater.

  • Technical

    Technical Specifications

    With a very clear backlit digital control display the T-MT has easy-to-use functions and the latest energy saving technology including:

    • 7 x 1 day programmable;
    • Manual and Away modes;
    • Window Open Function (shutting off the heating if a rapid drop in temperature is detected until you override this or wait 30 minutes);
    • Adaptive start (automatically ensures the desired room temperature is achieved at the time set);
    • Wall-mounted;
    • 5 – 40°C setpoint range and 0.5°C accuracy;
    • IPX0 protection – do not install in zones 0-2 in bathrooms;
    • Multiple Herschel XLS heaters can be controlled by one T-MT control;
    • App-enabled;
    • Voice control via Alexa or Google Assistant when used with the App.

    Other Features:

    • Radio Frequency 433Mhz;
    • 2.4GHz wifi networks;
    • 35m wireless range;
    • 24 month warranty;
    • Herschel XLS Infrared heaters together with the T-MT Wifi Thermostat are fully compliant with EC Directive 2009/125/EC for Ecodesign of local space heaters.

    Quality & Safety

    Certifications for XLS Controllers





  • Manuals and Guides


    Download the Smartlife App:





  • Reviews (4)

    4 reviews for Herschel T-MT Mains powered Wifi thermostat

    1. Stuart Dixon (verified owner)

      I am very pleased with my new Herschel infrared heaters. I was looking to replace my obsolete storage heaters, and infrared heaters were recommended to me by friends. I found the Herschel UK website very clear and helpful, and I was given great advice when I phoned to check a few details. Delivery was very quick and everything arrived well packaged. My electricians found the panels and controllers easy to install. I am particularly pleased with the controllability of this type of heating and the pleasant feeling of the heat, which is like the heat from the sun. Also the panels are very thin and minimal in appearance.

      • Customer Service

        Thank you Stuart, we very much appreciate your feedback. We’re delighted to hear that you were recommended Herschel by friends and that you are pleased with your heaters and controllers.

    2. William Kirkham (verified owner)

      Superb product, well made with first class guarantee. One of our Heathers failed after 4.5 years and they honoured the 5 year warranty. That’s why when we needed 4 more large heaters and control units, we went back to them .

      • Customer Service

        Thanks William, fantastic to hear from you.

    3. Jackson Corsi

      Once set up I have found it very useful to change the times on my phone if I’m away and it works well to keep the temperatures at the correct level for my apartment.

    4. Tessa McDonald

      Two years ago our dog had puppies. The most critical thing when puppies are born is to keep them warm. This is a challenge in a cold house in January, but the Herschel heater did the job, with its highly accurate thermostat keeping the room at the perfect temperature for the litter of 8 during the 8 weeks we had them.