Herschel T-BT Battery powered wireless thermostat
(7 reviews)
Herschel T-BT Battery Powered Thermostat

Herschel T-BT Battery powered wireless thermostat

(7 reviews)

Key Features:

  • Energy-saving (Lot 20) features
  • Battery operated, digital display
  • 7 x 1 day programmable
  • Open window & adaptive start
  • Can control multiple heaters

Rapid dispatch

2 year warranty

Reduce heating Cost

Energy efficient

Easy Installation

Zero Maintenance

Find Out More

  • Description


    Herschel T-BT is a compact battery-powered thermostat control designed to work exclusively with Herschel XLS heaters with their built-in SMART-R receiver.

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

    The T-BT is not wifi enabled and will not work with the Smartlife App.

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

  • Technical

    Technical Specifications

    With a very clear backlit digital control display the T-BT 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 or Free-standing;
    • 5 – 30°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-BT control.

    Other Features:

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

    Technical Specifications

    Surface: PC+ ABS to UL94 fire retardant plastic

    Voltage: 3VDC

    Power Supply: 2 x AA Batteries (not included)

    Keep-alive battery: CR1220 lithium battery (not included)

    Protection Class: IPX0

    Installation: Free-standing or wall-mount

    Setpoint Range: 5-40°C

    Radio Frequency: 433MHz

    Wifi Band: Wifi not enabled

    Programming: 7 day program, 4 periods per day

    Energy Saving: Open Window, Adaptive Start

    App Control: Not enabled

    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
  • Reviews (7)

    7 reviews for Herschel T-BT Battery powered wireless thermostat

    1. Tania (verified owner)

      Easy to use and does the job but as per my previous review, the sensitivity on both the buttons and temperature bands could be improved for a product of this price. Battery powered is convenient for our existing rooms but will look at mains powered when we fit the panels in our new extension

    2. Tania (verified owner)

      Very easy to use, but find that it’s not that responsive on the button panel, takes a couple of presses to get it to react. Like a previous review, the temperature does seem to flit by 5 degrees when buttons are pressed. It’s also not that finely tuned with regards temperature triggers, for example if room set at 21 degrees, panel will switch off at 21.5 or even 22. Think the sensitivity of the temperature could be better for something of this price. Did have an issue with the first one provided but the staff were very helpful and organised a replacement very quickly.

      • Customer Service

        Thanks Tania, your feedback will be passed to our product development team for review.

    3. Brian Harrisson (verified owner)

      Fast delivery and clear instructions. The controller does the job for our infra red panel. Two criticisms 1. The display is rather dim. 2. The program set up is quite complex, and i have yet to master it

      • Customer Service

        Thank you for taking the time to add your feedback Brian, please feel free to contact us if we can assist in any way.

    4. C Bassett

      Does the job thanks, easy controller to use. Happy with my new heaters.

    5. Matt Benton (verified owner)

      On the plus side it is easy to set up and pair with the XLS heaters. Minor problems are the buttons often need several presses to get a response, and you can’t see the target room temperature unless you press the +/- buttons, which then changes it by 0.5 degrees. But the one major flaw with this control is it uses too wide a temperature range. Although it displays in 0.5 degree increments, if you set the target temperature at say 20 C, it won’t switch the heaters on until room temperature drops to 19 C, or off until it reaches 21 C, so the room frequently feels either too hot or too cold. That’s effectively a 2 degree range. I would expect a default of heaters on at 19.5, off at 20.5, or at least have the option to set the sensitivity, as it could vary in different rooms. Unfortunately I won’t fit more infrared heaters in my house until there’s a better method of controlling them.

      • Customer Service

        Thank you for your feedback. I understand our team have been talking with you to discuss your specific installation needs. We certainly value your opinion about the control temperature range and will pass this onto our product development team.

    6. Mr Wills

      The thermostat is easy to operate and maintains the temperature of our heaters. We love this heating and recommend it especially as there are no noisy clanking pipes!

    7. Mrs S Reed

      I was recommended the T-BT to control my Herschel Select XLS panels as it was battery operated and a quick simple solution and I have definitely found that to be the case.

      • Customer Service

        Thank you Mrs Reed. We’re very pleased to hear you’ve found it to be a simple solution for your needs.