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MHTC R290
High-temperature air/water monobloc heat pump

Air-to-water heat pump providing heating, cooling and domestic hot water production.

Designed for flexible installation with hybrid and cascade possibilities.

The solution uses environmentally friendly R290 (propane) refrigerant with no impact on the ozone layer and offers capacities of 20 and 30 kW.

  • Heating capacity: 20 and 30 kW.
  • Provides heating, cooling and domestic hot water.
  • Hybrid and cascade installation possibilities.
  • R290 (propane) refrigerant with no impact on the ozone layer.
  • Flow temperature up to 80°C.
  • Inverter scroll compressor.
  • Dual electronically controlled (EC) fan.
  • Integrated pump.

High performance

  • COP up to 4.60.
  • SCOP up to 5.17.

Easy to install and flexible

  • Monobloc solution: no certification of fluid handling capacity required.
  • Can be installed in cascade to meet high demands.
  • Hybrid solution allowing optimal adaptation to installation requirements and variations in energy costs.

Exceptionally quiet in all conditions

  • Acoustic level from 35 dB(A).
  • Operating noise level modulation thanks to the scroll inverter compressor and EC fans.
  • Silent mode function available.

DiemaControl and DiemaControl Pro: a multitude of possibilities

  • Control with electric backup or boiler.
  • Advanced hybrid control.
  • 1 direct circuit and domestic hot water control as standard, and up to 3 mixed circuits with optional accessory.
  • Communication option via BACnet and Modbus for compatibility with the BACS decree.
  • To manage additional circuits, consider the SCB-10 multi-zone wall box.


  • All-season comfort
  • High performance thanks to R290
  • Heating and cooling
  • Compact and discreet
  • Ideal for a renovation project

Details of the models

Click on the model to get more details :

MHTC R290 020
MHTC R290 030