6th October 2025

80°C 4-Pipe Chiller-Heat Pumps Offer Efficient Retrofit Option for Low Carbon Heating

R290 Chillers

80°C 4-Pipe Chiller-Heat Pumps are emerging as one of the most effective ways to retrofit low carbon heating systems into existing buildings. Their ability to provide simultaneous heating and cooling makes them a strong option for commercial and industrial applications aiming to reduce carbon emissions and energy costs.

A common concern with heat recovery systems is how well cooling demands align with peak heating requirements. Over a typical 30-week heating season, the amount of heat recovered from cooling may not match peak demand. Despite this, experts stress that any heat recovered from cooling is always the most efficient low carbon heat a system can use.

The units offer a practical upgrade path for sites currently operating with older chillers or separate heating and cooling systems. By using a single power supply to deliver two outputs, operators can streamline plant room space and reduce running costs.

Key benefits of 4-Pipe Chiller-Heat Pumps include:

  • Compatible with slipstream chilled water return systems

  • Suitable for replacing aged chillers

  • Single power supply for both heating and cooling

  • Delivers partial or 100% heat from cooling

  • Stronger performance than air source heat pumps alone

  • Combined heating and cooling operation

  • Heat output up to 80°C

  • Cooling output down to -10°C

These features make retrofit 4-pipe systems a strong choice for organisations seeking to cut carbon emissions without compromising on heating performance.

To learn more about available models and their suitability for your site, contact the technical team for guidance on selecting the right Chiller-Heat Pump system.

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