CO2 Heat Pumps | Pure Thermal

CO2 Heat Pumps

by the industry experts

Pure Thermal CO2 Heat Pumps operate with the natural refrigerant R744 CO2 which importantly provides the Lowest GWP selection of 1 whilst also providing a practical and flexible Natural Refrigerant option for Hot Water Production.

R744 (CO2) is A practical Natural Refrigerant to apply within a Heat Pump delivering an operating temperature up to 90C.

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What are CO2 Heat Pumps?

CO2 heat pumps are heating and cooling systems that use carbon dioxide (CO2) as a refrigerant instead of traditional refrigerants such as hydrofluorocarbons (HFCs) or chlorofluorocarbons (CFCs). They work by compressing and circulating CO2 gas, which absorbs and releases heat as it goes through different phases of pressure and temperature. CO2 heat pumps are considered more environmentally friendly than traditional heat pumps because CO2 is a natural, non-toxic, and non-flammable gas that has a low global warming potential (GWP) and does not contribute to ozone depletion.

Whilst straightforward to apply design diligence must be exercised with respect to the maximum return temperature to a CO2 Heat Pump being 35C. This is a factor of the way in which CO2 refrigerant can be used in a Heat Pump and must be acknowledged and adhered to.

Global Warming Potential Graph


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to discuss your next CO2 Heat Pump Project

There are several reasons why you should choose CO2 heat pumps. Firstly, CO2 heat pumps are more environmentally friendly than traditional heat pumps that use refrigerants with high GWP values. CO2 is a natural gas that has a low GWP and does not contribute to ozone depletion, making it a more sustainable option. Additionally, CO2 heat pumps are more energy-efficient than traditional HVAC systems, which can lead to lower energy bills and reduced carbon emissions. They can also be used for both heating and cooling, providing year-round comfort. Finally, CO2 heat pumps are often quieter and require less maintenance than traditional HVAC systems, making them a convenient and cost-effective solution.

Why choose CO2 Heat Pumps?

CO2 Heat Pump Range Options:

CO2 Air Source Heat Pump

CO2 Air Source Heat Pump

Air Source, Water Source, Ground Source, Waste Heat Source
  •  Heating only units to provide 90c output temperatures
  • Simultaneous 4-Pipe units to provide cooling when the heat pump is operating (No Cooling Without Heating)
  • Sustainable and low carbon applications
  • Satisfy TM65 or BREEAM standards
  • Ideal for Zero or Low carbon applications
  • Non F-Gas heating and cooling
  • Highest Efficiency Hot Water Heat Pump
CO2 Water / Ground Source Heat Pump

CO2 Water / Ground Source Heat Pump

  • Temperature ranges up to 90C
  • CO2 (R744) Air Source and Water-Ground Source Options
  • Heating and Cooling capability via Dual Source option
  • Compact footprint
  • Manufactured to the highest safety standards
  • Modular capability up to 5 units
  • 15kW-300kW

CO2 Heat Pump Applications

CO2 Heat Pump Applications

With the capability to operate at high temperatures the Pure CO2 Heat Pump range can be specified for a wide range of applications including retrofit and new projects.

Where sustainability standards must be achieved to meet client or planning restrictions or regulations the Pure CO2 Heat Pump range provides a highly efficient, practical and cost-effective solution whilst future proofing the installation completely by removing the application completely from F Gas regulation & reporting requirements.

These barriers can now be removed by utilising the Pure High Temperature Heat Pump range.

Learn more about our process and the 6-step approach

Pure Thermal is a specialist provider of natural refrigerant hydrocarbon heat pumps, dual output chiller hot water generators, natural refrigerant chillers, and integrated waste heat recycling and thermal storage systems.

Our team of people

A complete range of high quality efficient and sustainable heating/cooling systems is available with a specific focus on natural refrigerant based equipment. Pure Thermal equipment is manufactured to the highest standards, enabling each system to deliver maximum reliability alongside efficient operational performance.

Providing Heat pump solutions since 2015, the Pure Thermal team has extensive industry experience with a proven track record in delivering CO2 heat pump equipment and systems that meet the performance objectives of the most demanding projects.

Our dedicated team has many years of experiences in specifying, supplying, and maintaining industrial CO2 heat pump applications to companies across the UK.

Our specialist in-house team provides our industrial and commercial clients with a complete end-to-end CO2 Heat Pump support service, from creating an initial heat pump performance illustration and design brief, through to installation/commissioning of the CO2 Heat Pump and on-going maintenance support.

food industry

Enerblue logo

Enerblue Purple CO2 Heat Pump Specification

Enerblue is the leading specialist European heat pump manufacturer, with a strong reputation since 2007 for delivering market leading quality with an innovative engineering approach.

The Enerblue range includes both air source and water source Heat Pumps which provides the specifier with an extremely high performing range of Commercial & Industrial Heat Pump systems that are able to deliver temperatures to 90C in heating or hot water production mode.

Pure Thermal directly provide the complete range of Enerblue CO2 heat pumps within the UK supported by a full range of services from design through to commissioning & maintenance support.

Enerblue heat pump

Need an Urgent Quote?

Call 020 3488 4618

to discuss your next CO2 Heat Pump Project

Our Process

Start your CO2 Heat Pump project today with Pure Thermal. Contact our specialist technical support team on 020 3488 4618 for more information.

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