Greenvision Energy

Herschel iQ T-MKW Mains Powered WiFi Thermostat White

The award-winning Herschel iQ MKW Mains Powered WiFi Thermostat is ideal for new builds or renovations where cabling can be hidden


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Herschel iQ T-MKW Mains Powered WiFi Thermostat White

The Herschel T-MT is a compact thermostat control that works with Herschel XLS heaters. It has Wifi functionality, a manual temperature mode, a 7×1 day program mode, and a holiday mode. The Herschel iQ MKW is a mains-powered thermostat with a neat cable hiding feature ideal for both domestic and commercial applications. It has a lockable keypad, energy-saving features, and can connect up to 3.6 kW of Herschel heaters. Remember, Herschel iQ controls are only compatible with Herschel heaters. The Herschel T-MT is a compact thermostat control that requires mains power and is specially designed to work with Herschel XLS heaters featuring a built-in SMART-R receiver. With Wifi capabilities, the T-MT allows remote heating control via the Smartlife App or voice control using Alexa or Google Assistant. It offers various modes including manual temperature, 7×1 day program, and holiday (or Away) mode. In all modes, the Herschel heater(s) will turn on when the room temperature is below the desired temperature and turn off once the desired temperature is achieved.

The award-winning Herschel iQ MKW Mains Powered WiFi Thermostat is ideal for new builds or renovations where cabling can be hidden. With a sleek design, it can control temperatures up to 45°C for domestic or commercial applications. When paired with the SmartLife App, the MKW can run in fully programmable ‘Smart Mode’ to manage heating efficiency whether at home or away. The MKW is connected directly to the mains circuit and requires recessing into the wall or can be surface-mounted with a back box. It has the latest EcoDesign energy-saving features, including Herschel’s open window technology, and can operate up to 3.6 kW of Herschel heaters.

The MKW also has a keypad lock feature to prevent unauthorised tampering, making it suitable for commercial applications such as hotels, care homes, student accommodations, and let properties. However, please note that Herschel iQ controls are exclusively designed to work with Herschel heaters.

Note: Herschel iQ controls will only work with Herschel heaters.   *Attempted use with any other heater brand will invalidate the warranty. 

Key Features:

  • 7 x 1 day programmable, 4 periods per day in “Auto” Mode using SmartLife App;
  • Manual “Home” and “Away” modes;
  • Window Open Function (shutting off the heating if a rapid drop in temperature is detected until you override this or wait 15 minutes);
  • Adaptive start (automatically ensures the desired room temperature is achieved at the time set);
  • Target Temperature control (up to 45°C, making it suitable for specialist high temperature applications such as hot yoga studios);
  • Keypad lock;
  • Wall-mounted;
  • Use external sensor (supplied) to use in bathrooms;
  • SmartLife app-enabled.

Additional information

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IP Rating

IP 24 Rated

13 Amp Plug


Cable Length


Herschel XLS Mains-powered WiFi Thermostat White T-MT Manual

Based on 33 reviews
Isobel Gleave
Isobel Gleave
I'm very pleased that I went ahead and replaced my old storage heaters with the new Dimplex ones. The whole process went smoothly and efficiently and Greenvision were very helpful at all stages and didn't rush me. Apart from working better than the old ones they also look smart, as does the new bedroom panel heaters. The installers did a brilliant job and didn't leave a trace.
Gemma Rogers
Gemma Rogers
Quality service for installation of a new Dimplex Quantum storage heater, Rointe electric towel rail, updated fuse box and all associated. The service provided by Greenvision went beyond all expectations. Everyone was extremely helpful and friendly. Stuart and Paul provided professional advice based on what would be best for me. The virtual survey option was ideal, so we could discuss options and get a quote straight away, which meant from contacting Greenvision to installation was only a couple of weeks! Amanda was great in keeping me up to date about the installation and arrangements. On the day, Dan arrived exactly when expected and fitted everything perfectly, it's made such a difference. Thank you to everyone at Greenvision. Very impressed and wouldn't hesitate to recommend!
Peter Graystone
Peter Graystone
I found Greenvision very pleasant to work with. The explanation of the product, and the survey to check it was suitable for my home were both excellent. The engineer was courteous and efficient, although I would have loved it if he had vacuumed before he left. I'm very pleased on the whole.
Purchase and installation of Dimplex Quantum Storage Heaters. Very professional from start to finish. In contact throughout. Answered questions and were friendly and helpful. Fitters were very efficient and even brought a hoover to clear up afterwards! They explained everything regarding usage. Very polite and professional from start to finish. Would recommend.
ann munro
ann munro
I instigated my business with Greenvision 6 weeks or so ago. The staff at Greenvision were informative, considerate of my needs and quick to answer any queries. Adjustments to my advantage were made after a survey which have proved to be most adequate. The installation occurred on 16th. January. The engineers were on time, efficient and considerate, clearing up and tidying up as they proceeded. They took time to make sure I understood the basics of operating my heaters. I will certainly recommend Greenvision where and when I can. So quick.
Sarah Moyer
Sarah Moyer
I used Greenvision for purchase and installation of 2 electrical high heat retention heaters for use with Economy 7. Everyone at Greenvision was friendly and helpful. Although based in Nottingham they facilitated installers for me in London. The whole process was seamless, quick and efficient. I would certainly recommend this company.
Carol G
Carol G
We purchased new Dimplex storage heaters through Greenvision. I was totally impressed by their level of knowledge, advice, customer service and ability to organise an efficient installation of these products at our property in North Wales. Highly recommended!
Lucy Reynolds
Lucy Reynolds
Very pleased with the installation of a Quantum Dimplex storage heater. Clearly explained at all stages and electrician who installed it was excellent.
Ray W
Ray W
6 Dimplex Quantum storage heaters installed to replace old heaters and associated modifications carried out to wiring in meter cupboard. Friendly helpful installers and very professional job. Highly recommended.
Brian Lomas
Brian Lomas
Supplied and fitted 3 Dimplex Quantum storage heaters. Used Greenvision because other residents in our retirement flats recommended them from their experience. They were right to do so as our experience was the same. From start to finish our experience was seamless and efficient ,polite, friendly are words that come to mind. The team that arrived with us on installation day was Nathan/Paul and Luker. All three were cleanly dressed, polite and friendly but courteous. They were very competent indeed and represented an excellent image of the Company. J B and L Lomas SANDBACH

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