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The Solution: Enex Technologies LHE Heat Pump

To address these challenges, the project adopted the Enex Technologies LHE high‑temperature heat pump, a highly efficient air‑to‑water system engineered specifically for demanding heating and DHW applications.

The LHE series offers:

  • Production of high‑temperature hot water suitable for both space heating and DHW distribution.
  • High seasonal efficiency (COP/SPF), reducing operating energy costs.
  • Effective performance across a wide range of outdoor conditions.
  • Use of the low-GWP refrigerant R454B, aligning with modern environmental regulations and sustainability goals.
  • Advanced electronic controls and system integration features.
  • Scalable design capable of serving larger load profiles.

By using electricity as the primary energy source and leveraging state‑of‑the‑art heat pump technology, the Enex LHE system supports the transition away from fossil‑fuel reliance and contributes to building decarbonization goals.

Implementation & Performance

The Enex Technologies LHE unit was integrated into the building’s central plant room alongside:

  • Thermal buffer storage to stabilize output and smooth demand fluctuations.
  • Hot water storage tanks to ensure availability during high‑use periods.
  • Smart controls for load modulation and energy optimization.

Key performance outcomes:

  • Sustained delivery of hot water at elevated temperatures (up to 90 °C) suitable for residential distribution without auxiliary fossil‑fuel input.
  • Improved energy efficiency, reducing overall consumption through high COP values.
  • Reliable operation even during colder external conditions typical of Manchester winters.
  • Reduced carbon emissions compared to conventional boiler‑based systems.
  • Environmentally friendly operation using R454B refrigerant, which has a low global warming potential (GWP).