Herschel iQ T-MKS Mains Powered WiFi Thermostat Silver

Herschel iQ T-MKS Mains Powered WiFi Thermostat for Infrared Heating

Smart mains-powered WiFi thermostat for Herschel infrared heaters, with app control, keypad lock, EcoDesign energy-saving features and support for both home and commercial heating projects.

The Herschel iQ T-MKS WiFi Thermostat is a mains-powered smart thermostat designed to give accurate, flexible control over compatible Herschel infrared heating systems. With its designer finish, straightforward push-button operation and remote control through the SmartLife App, it is a strong choice for both domestic and commercial installations where neat, hard-wired thermostat control is preferred.

Because the MKS is wired directly to the mains circuit and heater circuit, it suits new builds, renovations and professionally planned heating systems where cabling can be hidden cleanly in the wall. It can also be surface-mounted with a back box where required, making it flexible for a wider range of projects.

The thermostat manages room temperature by switching heaters on when the room is below the set temperature and switching them off once the desired level is reached. Used with your WiFi network and the SmartLife App, it can run in fully programmable Smart Mode, helping you manage comfort and energy use more efficiently whether you are at home, at work or away from the property.

Why Choose the Herschel iQ T-MKS?

The T-MKS is particularly useful where you want a hard-wired thermostat rather than a wireless control setup. It gives you reliable room temperature control, a more permanent installation feel and commercial-friendly features such as keypad locking for settings protection.

Mains-powered WiFi thermostat for compatible Herschel infrared heaters

SmartLife App control for scheduling and remote adjustment

Hard-wired installation for neat new-build and renovation projects

Keypad lock to reduce unauthorised tampering

EcoDesign energy-saving features including open window detection

• Suitable for homes and commercial settings

If you are comparing smart control options for radiant heating, our Commercial Heating Thermostats Guide explains when a hard-wired thermostat, zoned setup or individual room control strategy makes most sense.

Best Applications for the T-MKS Thermostat

The Herschel iQ T-MKS is a strong choice for projects where reliable temperature control and protected settings matter. Because it includes keypad locking and app-based scheduling, it works especially well in spaces where you want users to benefit from warmth without constantly altering the thermostat.

Homes using Herschel infrared panels for room-by-room control

Hotels, guest rooms and hospitality settings where tamper resistance matters

Care homes and student accommodation needing controlled temperature settings

Let properties and managed accommodation where energy use needs tighter control

Commercial interiors requiring neat, wired thermostat installations

For broader planning ideas, see our Hospitality Heating Guide and Office & Commercial Interiors Guide.

Smart Control, Zoning & Efficiency

Infrared heating performs best when the control strategy matches how the space is actually used. In some rooms, that means individual thermostat control for one heater or one room. In others, especially larger projects, it may be better to create heating zones where more than one compatible heater works together under a single thermostat.

The T-MKS supports loads up to 16A, allowing up to 3.6kW of compatible Herschel heaters to be connected. That makes it suitable for both single-room heating and some grouped zone arrangements, provided the design is properly calculated and installed by a qualified electrician.

Good zoning helps:

• Reduce unnecessary energy use in unoccupied spaces

• Keep comfort more consistent across working areas

• Improve controllability in guest rooms, offices or rental properties

• Support better running costs than uncontrolled electric heating

To explore energy performance further, our Commercial Infrared Heating Running Costs Guide and Heat Loss Calculator are useful next steps.

Compatibility & Important Installation Notes

The Herschel iQ T-MKS is designed for use with Herschel heaters only. It can be used with compatible products in the Inspire, Select XLS and Herschel space heating ranges, but there is an important installation point to note for Select XLS panels.

If using the T-MKS with the Select XLS panel range, the thermostat must be hard-wired directly to the heater as well as the mains. In this setup, the panel’s SMART-R function is bypassed. Wireless pairing to the panel is not possible when using this thermostat.

• Compatible with Herschel heaters only

• Not for use with other heater brands

16A thermostat supporting up to 3.6kW connected load

• Can control temperatures up to 45°C

Can be recessed into the wall or surface-mounted with a back box

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

EcoDesign Features & Day-to-Day Use

The T-MKS is designed to be easy to operate both through the SmartLife App and via its onboard push buttons. It also incorporates modern EcoDesign energy-saving features, including open window technology, helping reduce wasted energy when room conditions change unexpectedly.

That makes it a good fit for projects where users want smart heating convenience but the property owner or specifier still wants dependable hard-wired control and more predictable energy use.

Key Features

• Mains-powered WiFi thermostat for Herschel infrared heaters

• SmartLife App control with programmable Smart Mode

16A switching capacity supporting up to 3.6kW load

• Keypad locking for commercial and shared environments

• Suitable for domestic and commercial applications

Keypad locking feature for tamper resistance

EcoDesign energy-saving features including open window detection

Can be recessed or surface-mounted with back box

• Compatible with Inspire, Select XLS and Herschel space heating ranges

• Supports individual room control or selected heating zones

• Designer finish with clean wall-mounted appearance

FAQ's

What heaters is the Herschel iQ T-MKS compatible with?

It is designed for Herschel heaters only. It can be used with compatible models in the Inspire, Select XLS and Herschel space heating ranges.

Can the T-MKS be used for zoning?

Yes. Because it supports up to 16A / 3.6kW, it can be used for some zoned heating layouts where more than one compatible Herschel heater is controlled together, provided the load is correctly calculated.

Is this thermostat suitable for individual room control?

Yes. It is also a very good option for controlling a single room or single heater setup, especially where you want app control and a hard-wired thermostat finish.

Does it work wirelessly with Herschel Select XLS panels?

No. When used with Select XLS panels, the T-MKS must be hard-wired directly to the heater and mains supply. The panel’s SMART-R function is bypassed in that setup.

Does the thermostat support remote control?

Yes. When connected to your WiFi network, it can be controlled through the SmartLife App, allowing scheduling and temperature management whether you are home or away.

Why is keypad locking useful?

Keypad locking helps prevent unauthorised changes to settings, which is especially useful in hotels, care homes, student accommodation, managed properties and some commercial environments.

Can this thermostat help reduce energy waste?

Yes. Features such as scheduling, app control, open window detection and better zoning can all help improve efficiency and reduce unnecessary heating time.

Is professional installation required?

Yes. Because the thermostat is mains-powered and hard-wired to the heating circuit, installation should be carried out by a qualified electrician.

Need help choosing the right Herschel heating control setup?

Read our Thermostats Guide, compare options in the Commercial Infrared Heaters Buyer’s Guide, use the Heat Loss Calculator, or contact Eco Friendly Heating for tailored advice and a project quote.

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