Infrared Heating Thermostats Guide – Smart Controls for Infrared Panels

Infrared Heating Controls Guide UK

Person using a smartphone to control a smart thermostat on a wall.

Infrared Heating Thermostats Guide – Smart Controls for Infrared Panels

Compare Herschel, Flexel, Tansun and Warmup thermostat and receiver options for infrared heating panels and radiant heaters, including smart app control, wireless room thermostats, plug-in controls, SmartLED heating and lighting controls, PIR automation, scenes, and multi-zone systems.

Choosing the right thermostat or control setup for infrared heating can make a big difference to comfort, running costs and how easy the system feels to use every day. A well-matched control strategy helps you schedule heating properly, avoid warming empty rooms, manage app control where needed, and choose between simple local control and more advanced smart automation.

At Eco Friendly Heating and Flooring, we supply infrared heating controls from Herschel, Flexel, Tansun and Warmup. This guide is designed to help buyers compare app-based controls, wireless thermostats, plug-in controls, hard-wired thermostats, PIR automation, scene control, receiver-led heater control and multi-zone systems, as well as which infrared heaters they can be used with.

Important buyer point:
Infrared thermostats are not all interchangeable. Some are designed for specific heater ranges, some are app-only, some require a separate receiver, some suit light commercial projects, and some are best suited to larger wired installations. Matching the control to the heater, load and control style matters much more than just choosing the nicest-looking screen.

Why Thermostat Choice Matters with Infrared Heating

Infrared heating works differently from traditional convection heating. Instead of mainly heating the air first, infrared panels and radiant heaters warm people, surfaces and objects in the room. That means the control strategy matters. You may want local air sensing, smart scheduling, wireless control in awkward retrofit spaces, receiver-led heater control, or occupancy-based automation where the room is not used on a fixed pattern.

How the Right Infrared Control Setup Improves Comfort and Efficiency

1
Controls room comfort

Good thermostats help avoid rooms feeling too cold, too hot or unnecessarily overheated.

2
Reduces wasted energy

Scheduling, app control, scenes and occupancy rules help stop empty rooms being heated for no reason.

3
Matches the install type

Some projects suit a wireless thermostat, others a hard-wired wall control, others a receiver or plug-in solution.

4
Improves day-to-day usability

A thermostat should fit the homeowner, family, staff or guests using it, not just the heater itself.

Buyer shortcut:
If you want the simplest route, choose the thermostat system that matches how you actually want to control the room: app only, physical in-room control, wireless retrofit, plug-in smart setup, receiver-led control, or whole-property multi-zone management.

Best Infrared Thermostats at a Glance

This page focuses on the strongest control routes from Herschel, Flexel, Tansun and Warmup. It also includes the two newer SmartLED thermostat options for compatible Herschel heating-and-lighting panels.

Herschel iQ R3 smart infrared thermostat and receiver for app-only control
Herschel Smart Control
Herschel iQ R3

A combined thermostat and receiver in one hard-wired unit for buyers who want app-only infrared heating control.

Herschel T2 wireless thermostat for infrared heating control
Herschel Wireless Control
Herschel iQ T2

A wireless in-room thermostat for buyers who want physical control without relying only on a phone.

Flexel Touch WiFi thermostat for infrared panel control
Flexel Smart Thermostat
Flexel Touch WiFi

A strong app-based control option for Flexel infrared panels and selected infrared heating projects.

Tansun 2kW wireless receiver for infrared heater control
Tansun Receiver Control
Tansun 2kW Receiver

A practical receiver-led control route for smaller Tansun heater zones where dimming and remote control matter.

Herschel T-MTLED mains powered WiFi thermostat for SmartLED infrared heating panels
SmartLED WiFi Control
Herschel T-MTLED

A mains-powered WiFi thermostat for compatible Herschel SmartLED panels with app and lighting control support.

Which Infrared Thermostat Is Best?

The best thermostat depends on the heater type, whether you want smart app control or physical room control, and whether the installation is wired, wireless, plug-in, receiver-based or multi-zone. Some buyers want the cleanest invisible setup, while others specifically want guests, family members or staff to be able to control heating without needing the app.

Thermostat / Control Best For Control Style Typical Infrared Use Notes
Herschel iQ R3 Minimal visible controls App-only / hard-wired Wall panels and fixed infrared heating zones Combined thermostat and receiver in one unit; ideal if phone/app control is all you want
Herschel iQ R2 + T2 Wireless room control Receiver plus physical wireless thermostat Rooms where guests, staff or family need local control Useful where you want a real in-room thermostat and a good fallback if WiFi is down
Herschel T-BT Simple wireless XLS control Battery wireless thermostat Herschel Select XLS panels with SMART-R receiver Great retrofit-friendly non-WiFi option
Herschel T-BTLED Wireless SmartLED rooms Battery wireless thermostat Herschel SmartLED infrared heating and lighting panels Lets you manage both warmth and compatible lighting functions without a mains thermostat
Herschel T-MTLED Fixed SmartLED wall control Mains-powered WiFi thermostat Herschel SmartLED panel installations Strong option if you want app control plus heater and light management from one wall thermostat
Herschel T-PL Fast smart plug-in setup Plug-in WiFi control Portable or plug-in infrared heaters Good for quick upgrades where hard-wiring is not wanted
Herschel T-MT / MKS Hard-wired smart control Mains-powered WiFi thermostat More permanent wall-mounted infrared installs Suitable where a neat fixed thermostat location is preferred
Flexel Touchscreen Simple dependable control Touchscreen local control ECOSUN panel heating and basic infrared room control Good where you do not need app control
Flexel Touch WiFi App control and scheduling WiFi / app / voice compatibility ECOSUN UB, U+, GS and other suitable infrared zones Strong all-round smart option and can be paired with PIR automation through Smart Life
Flexel V24 / V24WiFi Large homes or commercial multi-zone projects Central touchscreen multi-zone control Mixed infrared and underfloor heating layouts across multiple zones Useful where centralised management matters more than simple single-room control
Tansun 2kW / 6.5kW Receivers Directional heaters and zoned radiant heat Remote-led receiver control Patio heaters, commercial heaters, restaurants and workspaces Useful where dimming and grouped heater control matter more than air temperature sensing
Warmup 6iE / 7iE / Element Advanced smart control on suitable loads Hard-wired WiFi thermostat Selected infrared panels within thermostat rating Must be installed correctly and used in air/ambient mode, not floor mode

Best Control by Room

Not every room needs the same control logic. A bathroom mirror heater, a home office panel, a hotel room and a terrace heater all want different behaviour. Matching the control system to the way the room is actually used usually improves both comfort and conversion from browse to buy.

Room / Space Best Control Route Why It Works
Bedroom Herschel T-BT or T2 Simple, dependable local room control without overcomplicating the setup
Home Office Herschel R2 + T2 or Flexel Touch WiFi Strong for scheduled daytime use and quick local comfort changes
Kitchen / Family Room Flexel Touch WiFi or Herschel R3 Smart scheduling and app control help manage busy shared-use spaces
Bathroom Herschel smart control or simple local thermostat Useful for mirror heaters and timed comfort without wasting energy all day
Guest Room / Rental Herschel R2 + T2 or Flexel Touchscreen Physical controls are easier for guests than app-only systems
Office / Clinic Room Flexel V24, Flexel Touch WiFi or Herschel T2 Good for room-by-room zoning and clear temperature control
Hotel Room / Public Space Herschel iQ T-MKS / MKS or wired control Useful where a neater, more controlled and tamper-resistant setup is preferred
Commercial Multi-Room Layout Flexel V24 / V24WiFi Centralised management of multiple zones is usually the strongest route
Terrace / Outdoor Dining / Patio Heater Zone Tansun receivers or grouped control Dimming and zoned directional heater control often matter more than air-stat logic
Workshop / Large Open Commercial Space Commercial receiver or central zone planning Larger zones often need grouped control and proper load planning rather than one room thermostat

Real World Infrared Thermostat Setups

One of the easiest ways to choose the right infrared heating control is to compare how different systems perform in real homes and commercial spaces. These examples help buyers move from product names to actual use cases.

Example Project Best Control Route Why It Usually Works Well
Home office with daily desk use Herschel R2 + T2 or Flexel Touch WiFi Lets the user schedule working hours properly while still having quick local control when the room feels cool.
Guest bedroom or Airbnb room Herschel T2 / T-BT or Flexel Touchscreen Guests can change the temperature without downloading an app or learning a smart-home system.
Open-plan family room Herschel R3 or Flexel Touch WiFi App scheduling works well in rooms that are used at predictable times but still need easy adjustment.
Small clinic or treatment room Herschel T-MT / T-MKS or Flexel Touch WiFi Good for rooms where comfort needs to be stable and the system should look neat and professional.
Restaurant terrace or hospitality heating zone Tansun receivers with grouped control Directional radiant heaters often benefit more from grouped receiver control and dimming than classic thermostat logic.
Larger home or mixed heating property Flexel V24 / V24WiFi Central multi-zone management is usually easier than piecing together many unrelated room controls.
Simple buyer shortcut:
If the room is used by guests, staff or family, a visible local control is often the better route. If the room is mainly used by one confident user, app-only control can be cleaner and simpler.

R3 vs R2 – What Is the Real Difference?

This is one of the most important buying decisions in the Herschel range. The R3 and R2 are not interchangeable in normal use, and they suit different control preferences.

Herschel iQ R3

Best for: buyers who are happy controlling heat from the Smart Life app or by voice assistant.

How it works: a combined thermostat and receiver in one single hard-wired unit.

Why choose it: neat, cost-effective, minimal visible controls.

Herschel iQ R2

Best for: buyers who want a wireless receiver that works with a separate T2 thermostat in the room.

How it works: the R2 receiver pairs with a T2 wireless thermostat to give physical temperature control.

Why choose it: useful for guest rooms, workspaces and light commercial spaces where app-only control is not ideal.

Simple rule of thumb

Choose R3 if you want app-only control and the neatest install.

Choose R2 + T2 if you want a physical wireless room thermostat and more traditional room-by-room usability.

Useful practical difference:
The R2 route is often better in family homes, guest rooms, rentals, offices and smaller commercial spaces where not everyone will have or want the app. The R3 route is often better for tech-confident buyers who want a cleaner wall finish and fewer visible controls.

Can You Use Thermostats from Other Manufacturers with Infrared Panels?

Yes, sometimes you can, but it depends on the heater range, wiring method and the control architecture.

Using Other Thermostats with Herschel Infrared Panels

Yes, you can use other thermostats with many Herschel infrared panels, provided they are compatible with 230V resistive loads and installed correctly. However, the answer becomes more specific with the Select XLS range, because those heaters are designed around Herschel’s own controller ecosystem.

Buyer-friendly Herschel compatibility summary:
  • Herschel iQ controls are designed to work across the Herschel panel range, including XLS products
  • Select XLS panels with built-in receiver are best matched to Herschel XLS controllers such as T-MT, T-BT and T-PL
  • SmartLED panels are best matched to dedicated SmartLED controls such as T-BTLED and T-MTLED for combined heating and lighting control
  • Third-party wired thermostats can be used in some cases if the panel is hard-wired directly and the control method is suitable
  • Smart plugs or sockets may be an option for plug-in style heaters, provided the load is appropriate
  • If the total load exceeds the controller rating, a contactor may be required

Herschel generally prefers external wall-mounted, wireless or plug-in controls rather than built-in thermostats on the heater itself, because controls too close to the panel can read heater-adjacent temperatures rather than true room comfort.

Using Other Thermostats with Flexel Infrared Panels

Yes, third-party thermostats can often be used with Flexel infrared panels as long as the thermostat is suitable for a 230V AC resistive load, supports the load correctly, and uses the right sensing logic for the application. Flexel ECOSUN panels are designed to work well with air-sensing controls, whether that is a Flexel thermostat or a compatible third-party option.

Buyer-friendly Flexel compatibility summary:
  • Best matched options are Flexel Touchscreen, Flexel Touch WiFi and V22 / V24 wireless systems
  • Third-party smart thermostats can work where they are properly rated and suited to infrared switching
  • Plug-in thermostats can be useful for simpler infrared heater setups if the physical wiring and load allow it
  • Problems usually happen when the thermostat is under-rated, uses the wrong sensing method, or is not appropriate for the panel voltage and load
Best practical rule:
Infrared heating is usually happiest with a sensible programmable air-sensing thermostat. That helps the system respond properly to room occupancy and real comfort needs rather than trying to behave like floor heating or an old-fashioned radiator circuit.

Herschel Infrared Thermostats and Smart Controls

Herschel offers one of the broadest infrared-specific control ecosystems. That makes it particularly useful for buyers choosing between plug-in convenience, wireless room control, smart app control and fixed wall thermostat options. It also means you can match the control style more precisely to the room, rather than forcing every room into the same setup.

Herschel iQ R3 thermostat for app-only infrared heating control
App-Only Smart Control
Herschel iQ R3

A combined thermostat and receiver in one hard-wired unit for clean smart control of infrared heating.

Herschel iQ R2 wireless receiver for infrared heating
Wireless Receiver
Herschel iQ R2 Receiver

A receiver designed to work with the T2 wireless thermostat where physical room control matters, including light commercial and hotel-style retrofit projects.

Herschel T2 wireless thermostat for infrared heating panels
Wireless Room Thermostat
Herschel iQ T2

A battery-powered wireless thermostat pack ideal for in-room control without running thermostat cables.

Herschel T-BT battery powered wireless thermostat for infrared heating
Simple Wireless Control
Herschel T-BT

A compact wireless thermostat for Herschel Select XLS infrared panels with built-in SMART-R receiver.

Herschel T-BTLED wireless thermostat for SmartLED infrared panel heaters
SmartLED Wireless Control
Herschel T-BTLED

A wireless SmartLED controller for compatible Herschel LED infrared panels where heating and lighting are controlled together.

Herschel T-MTLED SmartLED WiFi thermostat for infrared heating and lighting control
SmartLED WiFi Control
Herschel T-MTLED

A mains-powered WiFi thermostat designed for compatible Herschel SmartLED heating and lighting systems.

Herschel T-PL plug-in WiFi thermostat for plug and play infrared heating
Plug-In Smart Control
Herschel T-PL

A quick plug-and-play smart thermostat route for buyers who want app control without a hard-wired thermostat install.

Herschel T-MT mains powered WiFi thermostat for wall mounted infrared heating control
Hard-Wired Smart Control
Herschel T-MT

A mains-powered WiFi thermostat for buyers wanting a permanent wall-mounted control point.

Herschel iQ T-MKS silver mains powered WiFi thermostat
Premium Fixed Smart Control
Herschel iQ T-MKS

A more design-led mains-powered thermostat option for premium infrared heating setups, hotels, receptions and controlled public spaces.

Herschel wired thermostat for infrared heating panels
Wired Control
Herschel iQ MD2

A straightforward wired thermostat option where a more traditional fixed control setup is preferred.

What Is the Herschel T-BT Best Used For?

The Herschel T-BT is a particularly useful option for buyers who want simple, reliable wireless control without WiFi complexity. It is designed for Herschel Select XLS heaters with built-in SMART-R receiver, making it especially good for retrofit rooms where running new thermostat cables would be awkward or undesirable.

Best uses for the T-BT:
  • Bedrooms, home offices and spare rooms where simple wireless control is enough
  • Retrofit projects where no new wall wiring is wanted
  • Buyers who do not want app control
  • Rooms where a shelf-mounted or wall-mounted battery thermostat is more practical than fixed mains control
  • Infrared panel setups needing a straightforward 7-day programmable thermostat route

Where Do T-BTLED and T-MTLED Fit In?

The T-BTLED and T-MTLED are more specialist than the standard Herschel thermostat range because they are designed for compatible SmartLED infrared panels that combine heating with lighting. If you are comparing the newer Herschel LED heating-and-lighting panels, these are the controls that make the most sense.

Simple SmartLED rule:
  • T-BTLED suits buyers wanting wireless local control without mains thermostat wiring
  • T-MTLED suits buyers wanting a fixed WiFi wall thermostat with app-based control
  • Both are intended for compatible Herschel SmartLED panel ranges rather than standard non-LED infrared heaters

Flexel Infrared Controls and Multi-Zone Systems

Flexel is particularly strong where you want control options for ECOSUN infrared panels and larger zoned projects. The ECOSUN panel range includes the UB, U+ and GS domestic infrared panels, plus wider commercial options, and Flexel also offers wireless and central control solutions for larger layouts.

Flexel Touch WiFi thermostat for infrared heating and app control
Flexel Smart Control
Flexel Touch WiFi

A strong app-controlled thermostat for buyers wanting remote access, scheduling and Smart Life compatibility.

Flexel touchscreen thermostat range for electric heating systems
Flexel Local Control
Flexel Touchscreen

A simple touchscreen thermostat for buyers who want dependable local control without app dependence.

Flexel Neo Kit-e connected thermostat and hub for smart heating
Connected Smart Control
Neo Kit-e

A connected thermostat kit for buyers wanting a more integrated smart-control setup.

Central touchscreen control centre for multi-zone heating management
Central Multi-Zone Control
Touch Screen Control Centre

A centralised control option for larger heating projects where multiple zones need to be managed more efficiently.

Flexel V24 central wireless thermostat with colour touchscreen
V24 Central System
Flexel Central Control System (V24 / V24WiFi)

A modular multi-zone control system for larger residential or commercial projects where you want to manage multiple heating zones from one central location.

Flexel wireless receiver switching unit 16A for zone heating control
Wireless Receiver
Wireless Receiver Switching Unit 16A

Useful in Flexel wireless control setups where room thermostats and central controls need to switch heating loads cleanly and reliably.

The V24 / V24WiFi system is especially useful for larger homes, offices and mixed heating projects where one control point is preferable to lots of scattered thermostats. It communicates wirelessly with V22 thermostats and V23 wireless receivers, helping avoid complex wiring runs between rooms.

Why buyers choose the V24 route:
  • Manage up to 24 zones from one central touchscreen location
  • Useful for a mix of infrared panels and underfloor heating across the same property
  • Better suited to larger projects than a simple single-zone thermostat
  • Can support more advanced occupancy thinking and “empty zone” management than a standard local thermostat
Very useful Flexel advantage:
If you want to automate infrared heating by occupancy, the Flexel Touch WiFi thermostat can work with Smart Life / Tuya-style PIR automation rules. If you want something more advanced than that for a whole property, the V24 central system is the better route.

Wireless Receivers for Infrared Heating Control

Wireless receivers are a key part of many infrared heating systems, particularly where you want flexible control, multi-heater zoning or commercial-grade reliability. Instead of relying purely on a wall thermostat, receivers sit between the power supply and the heater, allowing control via wireless thermostats, apps or remote systems.

This approach is especially useful in commercial spaces, larger rooms, retrofit installs and directional heater setups where traditional thermostat logic is not always the best fit.

Herschel iQ R2 wireless receiver for infrared heating systems
Herschel Wireless Control
Herschel iQ R2 Receiver

The core wireless receiver in the Herschel iQ system, designed to pair with a T2 wireless thermostat and enable zoned infrared heating control.

Flexel V23 wireless receiver switching unit for infrared heating control
Flexel Wireless Control
Flexel V23 Wireless Receiver

A high-capacity wireless switching unit designed for larger infrared and mixed heating systems with strong zoning and central control capability.

Electrical 6.5 kW receiver with warning label on a white background
Tansun Commercial Receiver
Tansun 6.5kW Wireless Receiver

A powerful receiver designed for high-load infrared heaters and commercial installations where grouped control and dimming are essential.

Tansun Receiver Control – Where It Makes More Sense Than a Traditional Thermostat

Tansun controls are especially useful where you are not really trying to manage room air temperature in the traditional way. Patio heaters, directional radiant heaters, hospitality spaces and covered outdoor zones often respond better to receiver-led grouped control and dimming than to a standard in-room thermostat.

Where Tansun receivers are often strongest:
  • Patio and terrace heating where grouped heater control matters
  • Restaurants, cafés and hospitality settings where you want dimming or stepped output
  • Conservatories, studios and commercial radiant zones where quick-response directional heat is the goal
  • Spaces where a classic room-air thermostat would not reflect the real comfort target very well

Herschel Wireless Receiver System (R2 & R3)

Herschel provides two key receiver-based control options depending on how you want to manage your heating.

  • Herschel iQ R2 – works with a separate T2 wireless thermostat
  • Herschel iQ R3 – combined receiver and smart controller with app-only control
Key features of Herschel receivers:
  • R2 capacity: up to 10 Amps (≈2.3kW)
  • R3 capacity: up to approx. 1.8kW per unit
  • Uses RF (433MHz) for thermostat communication
  • Uses WiFi (2.4GHz) for Smart Life app control
  • Scalable: multiple receivers can be grouped into one zone
  • Boost function: 1-hour manual heat override

Buyer takeaway: The R2 is best where you want a physical thermostat in the room. The R3 is better for “fit and forget” installs where everything is controlled via app or automation.

Flexel Wireless Receiver System (V23)

The Flexel V23 Wireless Receiver is designed for higher-load systems and larger commercial or multi-zone projects. It is particularly useful where infrared heating is combined with other systems such as electric underfloor heating. The V24 communicates wirelessly with V22 thermostats and V23 wireless receivers, helping avoid complex wiring runs between rooms.

Key features of the Flexel V23 receiver:
  • High load capacity: 16 Amps (≈3.6kW)
  • Can control more powerful infrared heaters without contactors
  • Modular zoning: 1 thermostat can control multiple receivers
  • Scalable: up to 24 zones with V24 central system
  • Includes floor probe support for mixed heating systems

Buyer takeaway: Flexel is often the stronger choice for larger projects, mixed heating systems, or where higher power handling per zone is required.

Quick Comparison – Herschel vs Flexel vs Tansun Receivers

Feature Herschel iQ R2 Flexel V23 Tansun Receiver
Max Load 10A (2.3kW) 16A (3.6kW) Up to 6.5kW
Control Style Wireless thermostat + app Wireless + central system Remote / dimming control
Best Use Domestic / light commercial Large homes / commercial Directional heaters / patios
Scalability Multi-zone via app Up to 24 zones (V24) Grouped heater control
Key Advantage Smart ecosystem & flexibility Higher power handling Strong output control & dimming
Simple buyer rule:
Choose Herschel for smart ecosystem control, Flexel for higher-load and multi-zone projects, and Tansun for directional heaters where dimming and grouped control matter more than traditional thermostat behaviour.

Can Warmup Thermostats Control Infrared Heaters?

Yes, Warmup thermostats can often be used to control infrared heating panels, provided the electrical load stays within the thermostat rating and the system is installed correctly by a qualified electrician. While Warmup is best known for underfloor heating, thermostats such as the 6iE, 7iE and Element are high-voltage controllers that can switch suitable resistive heating loads.

Warmup 7iE smart matter WiFi thermostat with smartphone control
Premium Smart Control
Warmup 7iE

A strong premium smart thermostat option for suitable infrared panel zones and modern smart-home focused projects.

Warmup 6iE WiFi thermostat for smart electric heating control
Advanced Smart Control
Warmup 6iE

A popular smart thermostat that can be a strong match for suitable infrared heating circuits.

Warmup Element WiFi thermostat and smartphone app
Simple Smart Control
Warmup Element

A clean and simpler smart option for buyers wanting app control of selected infrared heating zones.

Important setup rule for Warmup on infrared panels:
  • Check the total electrical load stays within the thermostat’s switching capacity
  • Use air / ambient sensing mode, not floor mode
  • Have the system hard-wired correctly by a qualified electrician
  • If the load is too high, a suitable contactor / relay may be needed

Why Would I Use a PIR Sensor with Infrared Heating?

A PIR sensor does not replace the thermostat. Instead, it acts as an occupancy trigger to automate the thermostat behaviour. This is especially useful with infrared heating because you usually want heat when the room is occupied, not when it is sitting empty for hours.

PIR motion sensor for smart heating automation
Occupancy Automation
PIR Sensor

Useful for reducing temperature when no movement is detected and restoring comfort when someone enters the room.

White four scene control switch for smart heating scene control and manual override
Manual Scene Override
Four Scene Control

Helpful where staff or users want manual access to set scenes such as “Boost”, “All Off” or occupied-mode heating without using the app.

Why Use PIR? Best In Practical Benefit
Occupancy-based heating Living rooms, home offices, guest rooms, shared workspaces, hospitality zones Stops empty rooms or empty customer areas being heated for long periods
Schedule override Rooms and spaces with irregular use Keeps heat on if someone stays later than planned or returns unexpectedly
Fail-safe energy saving Homes, offices, treatment rooms, meeting rooms, restaurants Helps if users forget to turn heating down before leaving
Good setup tip:
Add a sensible delay before setback, often around 5 to 10 minutes for busy rooms or 10 to 30 minutes for calmer occupied spaces. That helps avoid the heating dropping every time someone leaves briefly to make tea, answer the door or wander off like a confused penguin.

Herschel Smart Scenes, Delays and PIR Logic

Within the Herschel iQ ecosystem, a scene is an automation rule created in the Smart Life or Tuya app that links a device such as a PIR sensor to a thermostat or receiver. This makes it possible to create more intelligent behaviour than simple ON/OFF switching. In practice, it means you can tell the system what to do when a room is occupied, empty, closing down, or manually overridden.

Typical Herschel scene setup:
  • Welcome Scene: if motion is detected, raise the set temperature to comfort level, for example 21°C
  • Energy Saver Scene: if no motion is detected for a chosen time, reduce the temperature to a setback value such as 12°C or 5°C
  • Closing Time Scene: use a manual scene switch or timed automation to turn all heaters down or off
  • Boost Scene: temporarily raise comfort in one area without changing the whole schedule

How to Use a 10-Minute Delay Properly

The delay is one of the most important parts of good PIR logic. Without it, the heating may reduce too quickly the moment someone sits still, pops to the bar or walks out of view for a minute. A better setup is to wait until the room has been continuously empty for a chosen period before lowering the setpoint.

Simple commercial-friendly logic:
  • If motion is detected, set heating to comfort temperature immediately
  • If no motion is detected for 10 minutes, reduce heating to background temperature
  • For hospitality spaces, a setback of around 12°C can be better than a hard OFF
  • Add opening-hours logic so PIR scenes do not fight with cleaning or overnight routines
Very practical rule:
In restaurants, pubs and other hospitality spaces, it is often better to reduce heat to a background level rather than switching fully off. That helps avoid the room becoming icy and makes the next occupied period quicker and cheaper to recover.

PIR Placement Tips

PIR sensors are only clever if they are looking in the right direction. Poor placement can create false triggers or missed occupancy, which means heaters may stay on unnecessarily or turn down while people are still in the room.

  • Mount PIR sensors where they can see movement across their field of vision rather than only straight toward the device
  • A corner position often improves room coverage
  • Avoid pointing PIR sensors directly at the heater itself
  • Keep away from strong sunlight, reflective surfaces and draughty vents where possible
  • In rooms with booths, partitions or dead zones, one PIR may not be enough
  • Test sensitivity and delay settings before treating the setup as finished
Common false-trigger culprits:
Sunlight through glass, moving shadows, reflective mirrors, air vents and poor line of sight. Infrared heating is clever, but sadly not psychic.

Can I Make My Flexel Thermostat a PIR Thermostat?

Effectively, yes. Because the Flexel Touch WiFi thermostat is compatible with the Smart Life ecosystem, you can create PIR-style automation with a compatible Smart Life / Tuya sensor. In practical terms, that means you can build your own occupancy-based infrared heating logic even though the thermostat itself is not a dedicated PIR thermostat.

Typical automation example:
  • If motion is detected, set room temperature to comfort level
  • If no motion is detected for a chosen period, reduce the set temperature
  • Use different rules for daytime occupancy and nighttime setback

Smart Thermostat vs Wireless Thermostat vs Plug-In Control

Type Best For Pros Things to Consider
App-Only Smart Control Minimalist smart homes Neat install, remote access, smart scheduling Less ideal if other users need physical in-room control
Wireless Thermostat Retrofits and flexible room layouts No thermostat wiring, easy placement, familiar local control Usually battery powered and may need receiver pairing
Plug-In Smart Control Portable or easy-upgrade infrared heaters Fast setup, convenient, no wall thermostat install Best suited to compatible plug-in style loads and simpler room setups
Receiver-Led Heater Control Directional heaters and zoned radiant heat Useful for dimming, grouped heaters and non-traditional thermostat logic Often less about air temperature and more about output management
Hard-Wired Smart Thermostat New builds, refurbishments, permanent zones Stable, neat and feature-rich Needs proper electrician-led installation
Central / Multi-Zone Control Larger homes and more complex projects Better whole-property management, clearer zone control, useful for mixed heating layouts Needs more planning and the right system architecture

Compare Herschel vs Flexel vs Tansun

If you are choosing between brands rather than just individual products, the real question is usually what control philosophy suits the project best? Herschel is especially strong for smart ecosystem control, Flexel is strong for zoning and mixed-property management, and Tansun is strong for receiver-led directional heater control.

Brand Best For Control Strength Typical Buyer
Herschel Smart panels, wireless control, app scenes, SmartLED, light commercial Broadest infrared-specific ecosystem with R2/R3, T2, PIR scenes and wall controls Buyers who want flexible smart control, wireless room control, app scenes or premium finish options
Flexel ECOSUN panel projects, larger homes, mixed systems, multi-zone layouts Strong for V24 central control, zoned management and Smart Life compatible WiFi control Buyers who want one central management route or stronger zoning across several rooms
Tansun Directional heaters, patio heaters, hospitality zones, conservatories and commercial heater groups Strong for receiver-led remote control and dimming rather than classic thermostat logic Buyers who want flexible heater output control, grouped zones and quick-response radiant heat
Simple buying shortcut:
  • Choose Herschel if you want the broadest smart infrared ecosystem with scenes, PIR logic and multiple control styles
  • Choose Flexel if you want central multi-zone management or ECOSUN-specific control routes
  • Choose Tansun if you are controlling directional radiant heaters where receiver control and dimming make more sense than one room thermostat

Infrared Heaters These Thermostats Can Be Used With

Below are strong examples of infrared heaters that pair naturally with the thermostat types in this guide. This helps buyers move from “which control do I like?” to “which heater-and-control combination makes sense for my room?”

Flexel ECOSUN Infrared Panels + Flexel Controls

ECOSUN UB universal infrared heating panel wall mounted in a kitchen
Flexel Universal Panel
ECOSUN UB Panel

A versatile infrared panel for wall or ceiling use. A natural match for Flexel Touch WiFi, Flexel Touchscreen and selected multi-zone Flexel control routes.

White ECOSUN U plus textured infrared heating panel
Flexel Textured Panel
ECOSUN U+ Panel

A textured high-emissivity infrared panel that works well with Flexel smart or local thermostat setups in domestic and commercial spaces.

ECOSUN GS designer glass infrared panels in several colours
Flexel Designer Glass Panel
ECOSUN GS Glass Panel

A stylish glass or mirror-effect infrared panel suited to bathrooms, feature rooms and more design-led spaces with compatible wall controls.

Herschel Infrared Heaters + Herschel Controls

Herschel comfort infrared ceiling tile heater
Ceiling Tile Infrared Heater
Herschel Comfort Ceiling Tile Heater

A strong fit for commercial ceilings and discreet overhead infrared heating when paired with suitable wired or smart Herschel controls.

Herschel Select XLS heated bathroom mirror with lights
Bathroom Infrared Mirror Heater
Herschel Select XLS Heated Bathroom Mirror

A popular bathroom infrared option that can be paired with suitable Herschel smart controls for elegant heating and mirror function in one product.

Round white infrared panel heaters suspended in a modern kitchen
Designer Infrared Panel
Herschel Select XLS Round Panel

A more design-led infrared heating option suited to buyers who want ceiling-hung or feature-style radiant heating.

Herschel Select XLS LED front lit infrared panel heater in a modern room
SmartLED Infrared Panel
Herschel Select XLS LED Front Lit

A combined heating and lighting panel that pairs naturally with T-BTLED or T-MTLED SmartLED controls.

Tansun Heater Routes + Receiver Control

Tansun 2kW wireless receiver for smaller infrared heater zones
Smaller Indoor Zones
Tansun 2kW Receiver

A useful route for conservatories, garages, enclosed rooms and smaller spaces where stepped heat control improves comfort.

Electrical 6.5 kW receiver with warning label on a white background
Larger Commercial Zones
Tansun 6.5kW Receiver

A stronger choice for grouped heaters, commercial layouts and larger indoor or covered outdoor spaces.

White wireless central thermostat with a colour touchscreen display
Central Zone Management
Flexel V24 Central Control

Included here as a useful comparison route where a project needs central multi-zone management rather than direct receiver-led heater control.

Best Thermostat Matches for Common Infrared Heater Types

Infrared Heater Type Strong Thermostat Matches Why
Flexel ECOSUN UB / U+ wall or ceiling panel Flexel Touch WiFi, Flexel Touchscreen, V24 system, selected Warmup thermostats Good for fixed panel zones where either simple local control, app scheduling or central multi-zone management is wanted
Flexel ECOSUN GS designer glass panel Flexel Touch WiFi, Flexel Touchscreen, selected hard-wired smart thermostats Works well in feature rooms and bathrooms where style matters as much as control
Herschel Select XLS panel with SMART-R Herschel T-BT, T-PL, R3, R2 + T2, selected iQ controls Lets buyers choose between simple wireless control and stronger smart integration
Herschel SmartLED panel Herschel T-BTLED, Herschel T-MTLED Best where you want to control compatible heating and integrated lighting from the same system
Herschel ceiling tile heater Herschel iQ controls, T-MT, R3, R2 + T2 where relevant Suited to more permanent ceiling-based infrared zones and commercial spaces
Tansun directional heaters Tansun 2kW / 6.5kW receivers and grouped remote control Best where heater output control and grouped zoning are more useful than classic room-air thermostat logic
Portable or plug-in infrared heaters Herschel T-PL and other suitable plug-in smart routes Great for buyers wanting faster smart setup without a full rewiring project

Can One Thermostat Control More Than One Infrared Heater?

Yes, provided the heaters are part of the same zone and the total electrical load remains safely within the switching capacity of the thermostat or receiver. This is common in larger rooms, open-plan spaces or commercial areas where several panels work together as a single heating zone.

Important load warning:
If the total infrared panel load is too high for the thermostat to switch directly, your electrician may need to use a suitable relay or contactor. That is normal on larger panel arrays and should be planned early rather than discovered during installation day drama.

Are Infrared Thermostats Universal?

Sometimes, but definitely not always. Some controls are tightly linked to specific heater ecosystems, while others are more flexible high-voltage thermostats capable of switching a range of suitable resistive heating loads. The safest buying approach is always to check:

  • heater compatibility
  • electrical load
  • wired vs wireless architecture
  • app ecosystem compatibility
  • whether the thermostat is air-sensing, plug-in, receiver-based or integrated
Simple buyer rule:
Do not assume a thermostat is interchangeable just because it looks similar or carries the same amp rating. Infrared control compatibility is about the whole control method, not just the front plate.

Internal Guides That Answer the Next Buyer Questions

Infrared Heating Thermostat FAQs

What is the best thermostat for infrared heating?

The best infrared thermostat depends on how you want to control the room. For app-only smart control, Herschel iQ R3 is a strong option. For wireless physical room control, Herschel R2 with T2 is very useful. For Flexel panel projects, Flexel Touch WiFi and Flexel Touchscreen are strong choices. For directional heaters, Tansun receivers can be the stronger route. For suitable hard-wired infrared loads, Warmup 6iE, 7iE and Element can also be effective.

What is the difference between Herschel R2 and R3?

The R3 is a combined thermostat and receiver in one hard-wired app-controlled unit. The R2 is primarily a wireless receiver designed to work with a separate T2 wireless thermostat. The R3 suits buyers happy with app-only control, while the R2 route suits buyers who want a physical wireless thermostat in the room.

What are T-BTLED and T-MTLED for?

They are designed for compatible Herschel SmartLED infrared panel heaters that combine heating with lighting. They let you control both functions within the same thermostat ecosystem, which is different from standard non-LED infrared panel control.

Can Warmup thermostats control infrared panels?

Yes, often they can, provided the panel load stays within the thermostat rating and the thermostat is installed correctly in air or ambient sensing mode. This must be checked properly during specification and installation.

Can I use thermostats from other manufacturers with Herschel infrared panels?

Yes, in some cases you can, especially where the thermostat is suitable for a 230V resistive load and the heater is hard-wired appropriately. However, Herschel Select XLS panels are designed around Herschel’s own controller ecosystem, so using third-party thermostats may bypass some built-in smart functionality.

Can I use other thermostats with Flexel infrared panels?

Yes, often you can, as long as the thermostat is suitable for the voltage, sensing method and load. Flexel panels usually work best with programmable air-sensing thermostats rather than controls designed around floor probes or unusual specialist applications.

Can I use a PIR sensor with infrared heating?

Yes. PIR sensors are useful for occupancy-based automation. They help lower temperature when rooms are empty and restore comfort when someone enters, which can be particularly effective with infrared panel heating.

How do Herschel scenes work with PIR?

Scenes let you link a PIR sensor to a thermostat or receiver in the Smart Life app. A common setup is motion detected equals comfort temperature, and no motion for a chosen delay equals setback temperature.

What is Four Scene Control best for?

It is especially useful where staff want a quick manual override for actions such as “All Off”, “Boost”, “Occupied Mode” or “Closing Time” without opening the app.

Is the Herschel T-BT a smart thermostat?

Not in the same WiFi-app sense as the iQ smart controls. It is a battery-powered wireless thermostat designed for simple dependable control of compatible Herschel Select XLS heaters with built-in SMART-R receiver.

What is the Herschel T-PL best for?

The T-PL is best for quick smart plug-in control where you want app-based convenience without a full hard-wired wall thermostat installation.

Can one infrared thermostat control multiple heaters?

Yes, if the heaters form a single zone and the total load remains within the control system’s safe switching capacity. Larger loads may require a suitable relay or contactor.

What is best for a large house with lots of infrared heating zones?

A central multi-zone system such as the Flexel V24 / V24WiFi route is usually a stronger fit than a collection of unrelated single-room controls. It makes whole-property management easier and gives a neater overall heating strategy.

What is best for a guest room or rental where people may not use an app?

A wireless or local physical thermostat is often better. The Herschel R2 plus T2 route, or simple local Flexel controls, can be easier for guests and family members than app-only control.

What is best for a quick retrofit without opening walls?

Wireless or plug-in controls are often the easiest answer. Herschel T-BT, T-PL and R2 plus T2 are particularly useful here, depending on the heater range and room layout.

Are cheap plug-in thermostat solutions always a good idea for infrared panels?

Not always. They can work well in the right situation, but only where the heater style, plug arrangement and electrical load are genuinely appropriate. For fixed panel arrays or more premium installs, a better matched wired or wireless control system is usually the smarter long-term choice.

Will a thermostat designed for underfloor heating always work well with infrared panels?

Not automatically. Some can work very well, but only when they are electrically suitable and set up in the correct sensing mode. Infrared panels usually need sensible air-based room control rather than floor-sensing logic.

Are Tansun receivers better than a normal thermostat?

Not universally. Tansun receivers are stronger where directional heaters, grouped zones and dimming matter more than classic room-air thermostat control. This makes them especially useful for patio heaters, hospitality spaces and commercial radiant heater layouts.

Ready to Buy?

Ready to choose your infrared heating control? Start with how you want to control the room, then match the thermostat or receiver properly to the heater type, load and installation style. That gives you a setup that feels easier to use and performs better from day one.