School with heat pumps installed in a container

Thermal Earth UK 21.10. 2025
Water to water Case studies Large-scale buildings

Laureate Academy high school in Hemel Hempstead, England, boasts a unique separate plant room equipped with R290 heat pumps.

School with heat pumps installed in a container

As part of a UK Department for Education (DfE) project to modernise school buildings, Hex Energy, in partnership with Thermal Earth, Master Therm’s UK distributor, installed a unique outdoor machine room for heat pumps using R290 (propane) refrigerant. The pump container is located outside the school building, automatically ensuring maximum safety for the installation. A machine room inside the building would otherwise require a refrigerant venting system in case of a refrigerant leak. 

The plant contains seven Master Therm AquaMaster 45 Inverter P heat pumps with a total output of 245 kW (B0W35), using environmentally friendly R290 (propane) refrigerant with an extremely low global warming potential (GWP = 3). This is the first installation of its kind in the UK and represents a significant step towards a sustainable solution, confirming Hex Energy and Thermal Earth’s leadership in low-carbon technology.

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