Herschel iQ MD1 Wired Thermostat

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Herschel iQ MD2 Wired Thermostat


Next Day Delivery
DIY Friendly
Reduce heating Cost
Highly energy efficient
2 yr Warranty
Zero maintenance


The Herschel iQ MD2 Wired Thermostat is ideal for new builds / renovations where cabling can be neatly hidden whether it be for domestic or commercial applications. When used in conjunction with your wifi network and the SmartLife app, MD2 can also be controlled remotely via the internet, enabling you to manage your heating when you are away from the building. The SmartLife App also enables control of your heating by voice using Alexa or Google Assistant.

MD2 is wired directly to the mains circuit and to the heaters and requires recessing into the wall.

The MD2 thermostat will operate your Herschel heater(s) by turning them on if the room temperature is lower than the desired temperature and turning them off once the desired temperature is reached. The MD2 is easy to operate, featuring a large digital touchscreen display and incorporates the latest EcoDesign energy-saving features including Herschel’s open window technology.

MD2 has a keypad locking feature to prevent unauthorised tampering making it suitable for commercial applications such as hotels, care homes, student accommodation and let properties.  The MD2 is a 16 amp thermostat enabling up to 3.6 kW of Herschel heaters to be connected.


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



Click here to download the MD2 Installation and setup instructions.

Click here to download a pdf summary of the iQ Thermostats range.

Download the Smartlife App:





Technical Specifications

With a very clear backlit digital control display the MD2 has easy-to-use functions and the latest energy saving technology including:

  • 7 x 1 day programmable, 4 periods per day;
  • Manual and Economy modes;
  • Window Open Function (shutting off the heating if a rapid drop in temperature is detected until you override this or wait 1 hour);
  • Target Temperature control (up to 45°C, making it suitable for specialist high temperature applications such as hot yoga studios);
  • Keypad lock;
  • Wall-mounted;
  • IP30 protection – do not install in zones 0-2 in bathrooms;
  • App-enabled;
  • Voice control via Alexa or Google Assistant when used with the App.

Other Features:

  • 16 Amp peak load at 230 volts;
  • Requires 2.4GHz wifi network for use with SmartLife app;
  • 24 month warranty;
  • Herschel Infrared heaters together with the iQ MD2 are fully compliant with EC Directive 2009/125/EC for Ecodesign of local space heaters.


iQ Certifications




Herschel Heaters and iQ Controls comply with ErP Regulation (EU) 2015/1188 and Supplement (EU) 2016/2282 (Lot 20).


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