Herschel iQ R3 Thermostat

Herschel iQ R3 Thermostat for Infrared Heating

Combined thermostat and receiver with SmartLife app control for Herschel infrared heaters.

Eco Friendly Heating are delighted to supply the Herschel iQ R3 Thermostat. The R3 is a stand-alone thermostat control unit that works together with the Smart Life App to control compatible Herschel infrared heaters.

Unlike separate thermostat and receiver systems, the R3 combines thermostat and receiver in one mains-wired unit. It is wired directly to both the heaters and mains power, removing the need for a second switching unit within the room. This creates a cleaner installation and a practical solution for buyers who prefer app-based heating control.

If you are comparing control options, our Infrared Heating Thermostats Guide explains the difference between app-only systems, wireless thermostats, receivers and smart zoning setups. You can also browse our Thermostats Collection, WiFi Thermostats and Wireless Thermostats collections.

How the R3 Works

The R3 senses room temperature locally, then sends data via WiFi to the Smart Life App, which returns control commands to switch the heater on or off according to your chosen settings.

This makes the R3 a strong choice for users who want to manage heating primarily from their phone or tablet, whether they are at home or away.

Combined thermostat and receiver in one unit

Room temperature sensing built in

WiFi app control through Smart Life

Mains-wired installation direct to heater circuit

• No separate receiver required

Important: The R3 relies on a stable WiFi connection and Smart Life App control. It is designed as an app-led heating system.

Ideal for App-Based Heating Control

The R3 is ideal where you are looking to control heaters through an app rather than using a wall thermostat or separate wireless controller.

Simply download the Smart Life App to a phone or tablet and control compatible Herschel Comfort and Herschel Inspire infrared panel heaters from anywhere with internet access.

• Remote temperature changes

• Heating schedules and timers

• Multiple room management

• Useful for holiday homes and second properties

• Convenient for modern smart-home users

For help sizing heaters correctly before selecting controls, use our Infrared Heat Loss Calculator.

Smart Home & Centralised Control Options

The Smart Life platform also supports voice control using Alexa and Google Assistant, allowing hands-free heating management.

Herschel Smart Switches can also be added for more centralised control of multiple thermostats. Buyers wanting one fixed control point may also consider the:

Touch Screen Control Centre – central hub control

Four Scene Control – one-touch scene control for multiple functions

Energy Saving Features

The Herschel iQ R3 incorporates the latest energy-saving features including open window detection technology, helping reduce wasted runtime while maintaining comfort.

Used correctly with schedules and sensible zoning, app-controlled infrared heating can be an efficient way to heat occupied rooms without unnecessary operation.

For running cost guidance, see our Infrared Heating Running Costs & Sizing Guide.

Electrical Capacity & Load Control

The R3 is a 10 amp mains-wired unit and will safely control up to 1.8kW heating load per unit.

Where larger heating loads are required, the R3 can also be used to trigger a contactor, allowing safe management of greater outputs where professionally specified.

• 10A rated unit

• Up to 1.8kW direct load control

• Can switch larger loads via contactor

• Professional installation recommended

R3 vs R2 – Which is Better?

Choose the R3 if you want:

• App-only heating control

• Lower-cost smart control route

• No separate thermostat on the wall or shelf

• Voice control through Alexa or Google

Choose the R2 + T2 system if you want:

• A physical thermostat in the room

• Wireless thermostat placement

• Backup local control if WiFi fails

• Multiple receivers linked to one thermostat in a larger room

The main reason to use the Herschel iQ R2 instead of the R3 is if you want a physical wireless thermostat in the room to change temperature without using your phone.

Key Features

• Combined thermostat and receiver in one unit

• Designed for Herschel infrared heaters

• Smart Life App control

• WiFi enabled smart heating management

• 10A rated up to 1.8kW direct load

• Can trigger contactor for larger loads

• 1 hour Boost function

• Open window energy-saving technology

• Alexa and Google Assistant compatible

• Clean installation with no separate receiver

FAQ's

What is the Herschel iQ R3?

The R3 is a combined thermostat and receiver designed for app-controlled Herschel infrared heating systems.

Does the R3 need WiFi?

Yes. The R3 is designed to work through WiFi using the Smart Life App and will not function properly without stable connectivity.

Can I use the R3 without the Smart Life App?

No. The system is intended as an app-led heating control solution.

How much heating load can the R3 control?

The R3 is rated at 10A and can directly control up to 1.8kW of heating load per unit.

Can it control larger loads?

Yes. It can be used to trigger a contactor where larger heating loads need to be controlled safely.

Does it support voice control?

Yes. Smart Life supports voice control through Alexa and Google Assistant.

What is the difference between R3 and R2?

The R3 is an app-only combined unit, while the R2 works with a separate T2 wireless thermostat and offers a physical control point in the room.

Need help choosing Herschel controls or the right infrared setup?

Start with our Infrared Heating Thermostats Guide, use the Heat Loss Calculator, or request a free design quote through the Eco Friendly Heating Contact Page.