The ExtremeLine Carbon emitters are the alternative when it comes to energy-efficient infrared heat. With the HeatTube, you convert 98% of the energy produced into heat, giving you one of the most energy-efficient heat sources around.


HeatTube Carbon – slim design, comfortable infrared heat. ExtremeLine’s HeatTube is one of the thinnest infrared heaters on the market right now. The sleek design combines fast heating performance with minimal red light. Especially in the bathroom, spa and wellness area as well as at the workplace, the HeatTube Carbon unfolds its outstanding performance.



Light emission very low / almost no red light
Power 230V / AC 50 Hz Approx. size of heated area with optimal installation / dimensions (devices)
900 W 3.5 m² 109 x D5.5 cm
1.800 W 6.5 m² 206 x D5.5 cm
2.700 W
Raumreichweite ca. 3 m
Surface temperature Filament temperature 1,100 °C
Radiation efficiency 73,7%
Beam angle 80°
IP protection class IPx4
Heating time approx. 35 sec.
Lifetime 10,000 hours
Infrared range IR-B Medium wave 1,400 nm – 5,000 nm
Minimum distance min. 6 cm to wood and metal, min. 15 cm to glass, awning and fabric

The ExtremeLine HeatTube Carbon complies with the Ecodesign Directive 2015/1188.
Click here for the Declaration of Conformity: DE_Ecodeign Directive & EN_Ecodeign Directive

This is included in the scope of delivery:

  • 2x suspensions for the HeatTube
  • Radio temperature sensor (optional)
  • Remote control only included with ExRemote control. With the other controls (somfy, elsner or BLE) no remote control is included in the scope of delivery

Please refer to the current price list!

There are 5 control options available for the ExtremeLine infrared radiant heaters. We distinguish between control by radio and control without radio. Here now a function overview:

Control with radio control (integrated control)

  • Radio and APP operation
  • 3 power levels (100%, 86%, 68%)
  • Radio room temperature sensor (minimum & maximum temperature, frost protection)
  • Intelligent Bluetooth module which enables the control as well as the configuration. Switch-off time, heating power, …
  • The display is an elegant LED display embedded in the infrared heater, which shows the current status of the heater in different colors.

Control without radio control

  • ON/OFF circuit
  • Integration into a room temperature controller possible
  • An elegant LED display embedded in the infrared heater serves as an indicator, showing the current status of the heater (ON/OFF).

The following control systems are available:

With the ExRemote radio system you can dim up to 4 groups differently. In addition to the radiant heaters, the ExtremeLine LED luminaires can also be controlled. The remote control is integrated in the scope of delivery, already programmed and ready for immediate use.
The Somfy io wireless system is considered a market-leading system in the winter garden and terrace area. As a Smart Home ready partner, these products can also be integrated into all Somfy io automation solutions. The Somfy remote control is not automatically included in the standard scope of delivery, but is included on request.
The BLE (Bluetooth low energy) radio protocol is supported by a wide range of manufacturers. For example, from certain products of the manufacturers Casambi, Enocean or Eltako. For the encrypted radio protocol we use, energy self-sufficient radio wall switches, which generate their energy from the keystroke. The energy-autonomous radio wall switch is not included in the scope of delivery. As an additional option, any ExtremeLine radiant heater with control via APP can be converted to the BLE wireless system.

The control via Elsner Elektronik is another control system that is common in winter gardens and patio roofs. This allows the entire building technology, such as: B. the ExtremeLine infrared heaters and LED lights, shading systems, the AirSlide and other fans can be controlled and automated. Our standard scope of delivery does not include the Elsner radio transmitter.

Without control

Of course, you can also control the ExtremeLine infrared radiant heaters without a radio system. The radiant heater already has an ON/OFF switch integrated in the device on site.

In addition, you have other options:

  1. A simple ON/OFF switch via a conventional wall switch.
  2. Integration into a BUS system via a switching or dimming actuator.
  3. Control via a thermostat, e.g. from the manufacturer Salus.

Please observe the Ecodesign Directive 2015/1188.


This slim design radiant heater finds its application e.g. in SPA and wellness areas, bathrooms, churches, listed houses, museums, public places, garden houses and Christmas markets. With our products everything will be nice and warm!


Problems configuring or
the commissioning?

We are happy to help.
We have provided some tutorials for you on our YouTube channel. You can also find a lot of information under the service point “Help” or in our operating instructions.

We would also be happy to help you by telephone.

Discover our online ExtremeLine exhibition.

Here you have the opportunity to explore new perspectives, discover our HeatTube three-dimensionally and get virtual advice.

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