New CTA heat pumps with propane

From January 2026, our product range will include additional heat pumps that use the natural refrigerant R-290 propane – developed to meet the energy needs of the future. Designed for both new-builds and replacement heating systems, our new inverter-controlled heat pumps combine maximum efficiency with low operating costs.
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Highlights of the new heat pumps

  • Natural, climate-friendly refrigerant: R-290 propane

  • High flow temperatures of 70 °C to 78 °C – ideal for renovations

  • Reversible – heating in winter, cooling in summer

  • Interfaces for PV systems and energy management systems

  • Cascading units for higher outputs

  • Quiet and efficient

  • Suitable for new-builds and replacement heating systemsf

Most efficient ground source heat pump

The Optiheat Terra All-in-One heat pump range sets new standards in its field. These pumps are the most efficient brine/water heat pumps on the market, with a tested SCOP of 5.3 (at B0/W35). Together with the outdoor air/water heat pumps Aeroheat Videa CV and Aeroheat Livera CL, they form part of a comprehensive renewal of our product range. Further models will be added in 2026. Quotations will be available from 15 January, with deliveries starting in March 2026.

Explore our new heat pumps now

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New product family

Optiheat Terra All-in-One

Brine/water heat pumps with propane – no on-site safety plan required. Developed and produced in Münsingen.

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Optiheat Terra All-in-One

Our new brine/water heat pumps from Münsingen are compact, highly efficient and barely audible when running. They are based on the proven all-in-one design and, thanks to the low refrigerant filling capacity, there is no need for a separate on-site propane safety plan.
  • Low power consumption thanks to high efficiency (SCOP 5.3 at B0/W35 or 6.2 at B5/W35)

  • Barely audible (acoustic power level in accordance with DIN EN 12102-1 in dB(A): 37/39/38

  • Heat output between 0.9 and 12.1 kW, depending on unit size

  • Flow temperatures of up to 75 °C

  • Up to four cascading units

  • Highly flexible hydraulic connections

  • Free Cooling


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Aeroheat Videa CV

Our flexible outdoor air/water heat pumps for the medium output range are efficient and cost-effective. The heat pump controller offers a wide range of options, including the integration of weather forecasts.
  • Low power consumption thanks to high efficiency (SCOP 5.3)

  • Quiet operation (acoustic power level A2, partial load in accordance with EN 14825 in dB(A): 48/51)

  • Heat output between 2.7 and 17.5 kW, depending on unit size

  • Flow temperatures of up to 70 °C

  • Up to five cascading units


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Aeroheat Livera CL 21a

Our powerful outdoor air/water heat pump for buildings with a high heating demand offers powerful performance and quiet operation. Thanks to its compact design and clearance on all sides, the unit is easy to transport and install.
  • Low power consumption thanks to high efficiency (SCOP 4.7)

  • Quiet operation (acoustic power level A2, partial load in accordance with EN 14825 in dB(A): 54)

  • Heat output 5.77 – 18 kW

  • Flow temperatures of up to 78 °C

  • Up to four cascading units


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Interested? Any questions?

We’ll be happy to advise you!

Showing contacts near Bern.

Dominic Plüss

Technical sales consultant for heatpumps Biel, Seeland in Bern

dominic.pluess@cta.ch

+41 79 447 15 29

Nicolas Jeanneret

Technical sales consultant for heatpumps Soleure et Langenthal

nicolas.jeanneret@cta.ch

+41 79 859 74 94