What is a HIU (Heat Interface Unit)?

  • Updated

A HIU is a Heat Interface Unit, which you would normally find in your apartment, within your utility cupboard. The HIU transfers heat from the building’s pipe network (primary circuit) into your home (secondary circuit). Your HIU is fitted with a heat meter which accurately records the amount of energy consumed (calculated in kWh), to be used for billing purposes.

Here's an example of what your HIU might look like:


Was this article helpful?