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

Herschel T-MT Mains powered Wifi thermostat

(4 reviews)

Key Features:

  • 0.1°C accuracy
  • Energy-saving features: Open Window & Adaptive Start
  • Energy-monitoring
  • Mains powered
  • Digital display
  • App Enabled
  • 7 x 1 day programmable
  • Can control multiple heaters

Next Day Delivery

2 year warranty

Reduce heating Cost

Energy efficient

Easy Installation

Zero Maintenance

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

    Surface: PC+ ABS to UL94 fire retardant plastic

    Voltage: 120 - 240VAC 50/60Hz

    Power Supply: Mains

    Protection Class: IPX0

    Installation: Wall-mounted

    Setpoint Range: 5-40°C

    Radio Frequency: 433MHz

    Wifi Band: 2.4GHz

    Programming: 7 day program, 4 periods per day

    Energy Saving: Open Window, Adaptive Start, Energy Monitoring

    App Control: Smartlife App Control

    Voice Control: Works with Alexa and Google Assistant when paired with the SmartLife App

    Quality & Safety


    EU/ UK Electrical Safety: EN62368; EN62311

    AUS/ NZ Electrical Safety: RCM Compliant. Low risk appliance.

    Electromagnetic Certification: EN62479; EN50663

    Radio Emissions Certification: EN300220-1&2; EN300328; EN301489-1;3;17

    Restriction of Hazardous Substances (RoHS): IEC62321

    Ecodesign Compliance: ErP Regulation (EU) 2015/1188 and Supplement (EU) 2016/2282 (Lot 20) when using Herschel Controls

    Warranty: 2 Years

    Note: Attempted use with any other heater brand will invalidate the warranty.

  • Manuals and Guides


    Click here to watch our “How to Pair to Select XLS Panel” video:

    T-BT How to Pair





    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.