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On the path to climate neutrality with thermeco2

The thermeco2 combines maximum efficiency and excellent COP values – the essential factors on the path to climate neutrality. Whenever there is a simultaneous need for sustainable heat and refrigeration, it is time for our high-temperature heat pump to shine. Not least due to the natural refrigerant CO2, which will prepare your company for future requirements in economic and ecological terms.

The advantages of the thermeco2 at a glance

Future-proof and eco-friendly
thanks to the natural refrigerant CO2
Maximum efficiency
thanks to unbeatable combined heating and cooling
Many power levels
between 90 and 1,000 kilowatts for indoor installation
Low safety requirements
as CO2 is non-toxic and non-combustible
State funding
of up to 50 per cent possible

‘Users who choose the thermeco2 benefit from an efficient, energy-saving and environmentally friendly technology – and I believe it is always the right time to make such a decision.’

Frank Glaser, Key Account Manager Industrial & Commercial Heating at ENGIE Refrigeration

thermeco2 heat pumps: heating, refrigeration and warm water preparation with thermeco2

The thermeco2 high-temperature heat pump raises the temperatures of free regenerative ambient heat sources, such as geothermal energy, groundwater, industrial waste heat or waste water to an especially high level.  The machine unfolds its full potential in challenging temperature ranges.  Warm water temperatures of 90 degrees Celsius can be achieved without additional heating by means of a gas burner or heating element. Even large temperature differences between the warm water inlet and outlet, such as from 30 to 90 degrees Celsius, do not pose a problem. Quite the opposite: this situation actually increases the efficiency of the machine.

It develops its full potential where there is a simultaneous strong demand for heat and refrigeration. This combined heating and cooling by the heat pump ensures maximum output values and maximum efficiency.

Functional principle of the thermeco2 high-temperature heat pump

The thermeco2 high-temperature heat pump fulfils the conditions of various funding programs run by the Federal Office for Economic Affairs and Export Control (BAfA). This also includes the law on federal funding for efficient buildings (BEG), which came into force on 1 January 2021. Please contact us if you would like a consultation.

Compact and robust design

  • Combines stability and a compact design into a robust industrial solution
  • Maximum temperature with optimum efficiency
  • Machine designed for easy service access


High-end technology components

  • Excellent system integration
  • Interfaces for all common GLT systems
  • Easy to operate via touch panel
  • Partial coil start for low start-up currents


Special options as standard

  • Vibration damper for low-vibration operation
  • Filter dryer for high level of operational safety and long service life
  • 19 mm diffusion-resistant insulation of entire refrigerant circuit prevents condensation and corrosion.


Made in Germany

  • Delivery of ready-to-connect units
  • Internally fully piped, wired and checked for function



  • Variable regulation concept
  • Integrated lead and follower machine PLC
  • Regulation and supply of external pumps


Comprehensive service

  • Remote access and maintenance via COOLCARE enables continuous improvement
  • Plant approval possible on test bed – customer-provided operating points can be simulated on test bed

The technical designation R-744 refers to nothing other than the natural refrigerant CO2. In the long term, it is cheaper than alternative refrigerants.

Above all, CO2 shines because it contributes neither to the destruction of the ozone layer nor to the greenhouse effect. An absolute plus for all companies that want to pay more attention to their climate neutrality in future.

In short, R-744 is economical, climate-friendly and safe, as it is neither toxic nor flammable.

Heating, refrigeration and warm water preparation with thermeco2
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