Modusat XR without cover

Choose the Smart HIU with hidden extras

  • Lower output models perfectly placed for CIBSE ADE Code of Practice
  • Same great performance – Now 27% Smaller*
  • Smart internal layout for easy install & maintenance
  • Lower aftercare support costs with ‘SmartTalk® Pro’
  • Smart, lower cost communication network connection
Modusat XR with cover
Blank graphic

ModuSat® XR & XR-ECO Twin Plate (TP) Heat Interface Units

Compact, wall mounted units for indirect high efficiency heating and instantaneous Domestic Hot Water (DHW), to suit a range of typical apartment sizes. Suitable for Radiator and Underfloor Heating systems.

Featuring electronic PID control using PICVs with modulating actuators, for a low primary return temperature, differential pressure control and flow rate regulation.

Modusat XR without cover


  • Smart layout for easy installation and maintenance
  • Electronic control
  • Extra compact dimensions (W467 x D315 x H625*)
  • ViewSmart room controller
  • Optional ENE3 Energy Display Device
  • Pipe insulation as standard
  • Fast and responsive DHW performance
  • Smart HIU technology
  • Choice of 5 pipework connection options as standard
  • WRAS Approved


(*ModuSat XR/XR-ECO 30, 55 & 70)


Remote Connectivity


  • Independently tested to the UK standard for HIUs from BESA
  • Designed to deliver an excellent VWART
  • ModuSat® XR-ECO models further improve efficiency
  • Low output ModuSat® XR 30 models suit CIBSE ADE CP1.2 DHW guidance
  • Timed Keep-Warm for minimal use of heat network energy
  • High performance at low primary flow as per GLA requirements & SAP
  • DHW return temps under 25℃, as per CIBSE CP1

Download the ModuSat XR/XR-ECO Technical Data Sheet

Find out about other models in the range

Our range of ModuSat® Smart Interface Units for district and communal systems are designed and developed by us in the UK and manufactured in our own production facility. Models include instantaneous heating and hot water, stored hot water, cooling, combined heating and cooling and various single plate options.

Discover how Evinox Energy can deliver the best HIU solution for your next new build or refurbishment heat network project

Evinox-Headers-Battersea Power Station

Heat Networks

  • District and Communal Heat Networks
  • Delivery of low carbon heating
  • Heat Interface Units
  • Energy Metering and Billing
  • Service and Maintenance
Evinox background

Energy Metering & Billing

  • Credit Billing Services
  • PaySmart® Pre-payment System
  • Billing Solutions for Non Evinox Equipment
  • Heat Network (Metering & Billing) Regulations 2014 Advice and Guidance
  • Domestic Heat Meters and Point of Entry & Bulk Meters
Evinox installed communial heating

Service & Maintenance

  • Heat Interface Unit Service & Maintenance
  • Plant Room – Planned Preventative Maintenance (PPM)
  • ModuSat® Heat Interface Unit Enhanced Warranty Cover
  • Combined Packages for Metering, Billing and Service & Maintenance
  • Domestic Boiler Service & Maintenance