x-change® dynamic pro air-to-water heat pump - NEW
Highest efficiency, lowest sound emissions, state-of-the-art control technology.
The x-change dynamic pro air/water heat pump stands for maximum efficiency, minimal sound emissions and state-of-the-art control technology. Developed with the environmentally friendly refrigerant R290 (propane), it offers a future-proof and sustainable solution that minimises installation work. The various output sizes and the option of cascading optimally cover the requirements for energy-efficient new builds and refurbishments.

x-change dynamic pro
- Modulating air/water heat pump for outdoor installation
- Output sizes (A-7/W35):
- pro S: 2.9 - 8.0 kW
- pro M: 4.0 - 13.0 kW
- per L E: 6.0 - 20.0 kW
- COP: up to 4.96 (A2/W35)
- Refrigerant R290
- With active cooling function
- Lowest sound emissions thanks to an optimised axial fan design with whisper mode
- App and web-based remote control of the heat pump via tablet, PC, smartphone
- Range of applications from -20 °C to 40 °C
x-change dynamic pro air/water heat pump
New build and refurbishment.
Many homeowners shy away from the installation of a heat pump. The x-change dynamic pro heat pump impresses in both refurbishments and new builds. Thanks to its flexible system architecture, it can be easily integrated into existing buildings while offering state-of-the-art technology and maximum energy efficiency for any living situation.
Whether a detached house, apartment block or commercial property: we offer customised solutions that are tailored to individual requirements. Our systems utilise the energy that nature provides us with free of charge. They noticeably reduce operating costs, increase living comfort and make a valuable contribution to climate protection.


Hybrid solution.
Hybrid heating is also a cost-saving solution for refurbishments: It combines the environmentally friendly heat pump with a second heat generator. This allows the existing heating technology to be modernised flexibly and without major conversions. The heat pump efficiently takes over the base load supply, while the second heat generator provides additional power when required.
The hybrid solution scores particularly highly with older buildings thanks to its adaptability and gradual integration. This lowers energy costs, reduces CO₂ emissions and ensures greater independence from rising energy prices.
Sustainable in new builds.
The x-change dynamic pro air/water heat pump is a pioneering heating solution and the centrepiece of modern heating and cooling supply. It utilises free energy from the environment and integrates seamlessly into an overall system: in combination with a sustainable energy supply, intelligent control technology and innovative solutions for heat storage and distribution, it creates a heat pump system with an impressive annual COP. In addition, the integrated PV function utilises surplus energy from the building's own photovoltaic system sensibly and efficiently.

Cascade solutions.
For large projects up to 60 kW. With our cascade solutions, several x-change dynamic pro heat pumps can be combined to form a powerful system. This is ideal for large properties with a heating requirement of 20 to 60 kW (up to 100 kW depending on the project). The intelligent x-center pro control system ensures maximum efficiency and reliability.
Advantages:
- Fail-safe due to redundant operation
- High energy efficiency thanks to intelligent control system
- Very low operating noise and whisper mode
- Modulating operation and automatic runtime optimisation

Heat pump technology for maximum efficiency.
Perfect complement
Buy a KERMI heat pump
We attach great importance to the highest quality and flawless installation of our products. That is why we sell KERMI heat pumps exclusively via the three-stage sales channel. This ensures that you not only receive a premium product, but also benefit from the best possible advice, planning and professional installation. Your qualified local specialist partner is your direct contact and ensures the optimal integration of our efficient and sustainable heating solutions into your home.
Technical data
- 3 different output sizes (S, M and L) as a single or cascade system up to 60 kW (project-related and in individual cases up to 100 kW)
- Very efficient and whisper-quiet operation - we are the benchmark with 44.5 DB at A7/W55 for whisper-quiet operation
- Top class A+++ with COP 4.96 (A2/W35) with the use of sustainable refrigerant R290
- Lowest sound emissions thanks to multi-insulated and triple sound-decoupled refrigeration circuit, whisper mode and optimised evaporator
- Extremely simple installation thanks to integrated vibration decoupling, micro-bubble separator and safety valve (2.5 bar)
- Intuitive and simple operation thanks to the large 7" touch display and self-explanatory large icons and innovative overview screens
- Ideal for new builds and refurbishments in combination with the KERMI controller / control unit and storage tank portfolio
- Remote maintenance via x-centre control without additional accessories
- Power to heat: the integrated PV function allows the heat pump to utilise the surplus energy from the building's own PV system
- High-quality and very attractive housing in a robust and weather-resistant metal design
- App and web-based remote control of the heat pump via tablet, PC or smartphone
- With active cooling function

x-change dynamic pro S

x-change dynamic pro S
Energy source | air |
Installation location | outside |
Function | Heating and cooling |
Energy efficiency class Heat pump 35 °C / 55 °C | A+++ |
Energy efficiency class incl. control 35 °C / 55 °C | A+++ |
Heating capacity (kW) at A2/W35 | modulating 2.3 - 7.5 |
COP1 A2/W35 | 4,96 |
Cooling output (kW) with A35/W18 | 3,0 - 6,0 |
Width x depth X height (mm) | 1250 x 610 x 1010 |
Weighting (kg) | 178 |
Item number | W20501 |

x-change dynamic pro M
Energy source | fan |
Installation location | outside |
Function | Heating and cooling |
Energy efficiency class Heat pump 35 °C / 55 °C | A+++ |
Energy efficiency class incl. control 35 °C / 55 °C | A+++ |
Heating capacity (kW) at A2/W35 | modulating 4.0 - 12.0 |
COP1 A2/W35 | 4,95 |
Cooling output (kW) with A35/W18 | 5,0 - 10,0 |
Width x depth X height (mm) | 1450 x 710 x 1110 |
Weighting (kg) | 229 |
Item number | W20502 |

x-change dynamic pro L
Energy source | air |
Installation location | outside |
Function | Heating and cooling |
Energy efficiency class Heat pump 35 °C / 55 °C | A+++ |
Energy efficiency class incl. control 35 °C / 55 °C | A+++ |
Heating capacity (kW) at A2/W35 | modulating 6.0 - 19.0 |
COP1 A2/W35 | 4,80 |
Cooling output (kW) for A35/W18 | 8,0 - 15,0 |
Width x depth X height (mm) | 1450 x 710 x 1310 |
Weighting (kg) | 280 |
Item number | W20503 |
Documents
Customer service
Heat pump
- Contact customer service
- +49 9931 501 12004
- kundendienst.waermepumpe@kermi.de