Heat Interface Units
Designed to meet the latest and future market requirements, our Greenstar HIU series includes a new top-of-the-range appliance that offers 21 litres per minute flow rate and incorporates components such as a differential pressure reducing valve and summer bypass.
Designed to meet the latest and future market requirements, our Greenstar Heat Interface Unit (HIU) series includes a new top-of-the-range appliance that offers 21 litres per minute flow rate and incorporates components such as a differential pressure reducing valve and summer bypass. Our KE+ and E+ HIU’s are the perfect solution for heat networks designing to CIBSE CP1 (2020) standards as both models are registered to BESA’s HIU test regime.
Heat Interface Units
HIU

Our heat interface unit provides domestic hot water and space heating for properties that use district heating or centralised boiler plants. Supplied with or without heat meter.
- Domestic hot water and space heating for properties that use district heating or centralised boiler plants
- Domestic hot water and central heating on demand with hydraulic system separation and two heat exchangers
- Domestic hot water and space heating temperature control
- Domestic hot water heat exchanger to operate on demand only