Heat Interface Unit (HIU): An Overview
A Heat Interface Unit (HIU) is a compact and efficient device used in modern heating systems, particularly within district heating and communal heating networks. It acts as the interface between a centralized heat source and individual residential or commercial units, enabling the controlled distribution of space heating and domestic hot water without the need for individual boilers.
Concept and Functionality
The primary function of a Heat Interface Unit is to transfer thermal energy from a central heating network to an internal building system. This is typically achieved through high-efficiency heat exchangers that separate the primary district heating circuit from the secondary circuit within the dwelling. By doing so, the HIU ensures hydraulic separation, improves system safety, and allows individual users to control their heating and hot water demand independently.