Heat Interface Units HIUs

are compact devices used in multi-occupancy buildings to provide individual heating and domestic hot water supply to apartments or units from a central heating system (such as a district heating network or central boiler).
HIUs act as a bridge between the central plant and the user’s internal system, allowing each unit to control its own heating and hot water independently.
They enable precise metering, user-level temperature control, and efficient energy management without the need for separate boilers in each apartment.