ModuSat single plate double circuit heat interface unit (HIU)

plate double circuit heat interface unit offers high efficiency heating and independent fast recovery hot water. For connection to a suitable external domestic Hot Water Storage tank, which is fed by the unit.

The Evinox ModuSat single plate double circuit heat interface unit (HIU) provides high efficiency heating and independent fast recovery hot water, designed for installation with a suitable external DHW storage tank fed by the unit.

The unit consists of a single plate heat exchanger, pump, PICV and diverter valve. The SPDC heat interface unit uses the diverter valve to switch secondary flow either through the heating circuit or fed to the external DHW tank, and operates in DHW priority mode to provide fast recovery of hot water.


In addition to this the ModuSat can provide direct control of Underfloor Heating output temperature without the need for any underfloor pumps, blending valves or mixing valves.

Available in a range of plate sizes and connection configurations, the SPDC HIU is suitable for most types of installation.