Buderus Logatherm WLW176i-10 AR E vs Kermi x-change dynamic pro M
SCOP (35 °C): Buderus Logatherm WLW176i-10 AR E 4.77, Kermi x-change dynamic pro M 5.7. The Kermi x-change dynamic pro M is better on 5 of 9 comparable points.
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Both models in detail
Who wins where
- Buderus Logatherm WLW176i-10 AR E
- Kermi x-change dynamic pro M
Biggest differences
| Fact | Logatherm WLW176i-10 AR E | x-change dynamic pro M |
|---|---|---|
| Refrigerant charge | 1.7 kg | 2.5 kg |
| COP A7/W35 | 4.84 | 5.9 |
| Seasonal efficiency ηs 55 °C | 142 % | 170 % |
| Seasonal efficiency ηs 35 °C | 188 % | 225 % |
| SCOP (35 °C) | 4.77 | 5.7 |
| SCOP (55 °C) | 3.64 | 4.33 |
Score per area = position (0–100) relative to all 1350 models in this category; higher is better.
| Technical specifications | BuderusLogatherm WLW176i-10 AR E | Kermix-change dynamic pro M |
|---|---|---|
| General | ||
| Type (source) | Air-to-water1 | Air-to-water2 |
| Performance | ||
| Heating capacity (A7/W35) | 5.58 kW1 | – |
| Rated output 35 °C | 10 kW1 | 10 kW3 |
| Rated output 55 °C | 10 kW1 | 10 kW3 |
| Min. outdoor temperature | -22 °C1 | – |
| Efficiency | ||
| SCOP (35 °C) | 4.771 | 5.7✓3 |
| SCOP (55 °C) | 3.641 | 4.33✓3 |
| Seasonal efficiency ηs 35 °C | 188 %1 | 225 %✓3 |
| Seasonal efficiency ηs 55 °C | 142 %1 | 170 %✓3 |
| Energy label 35 °C | A+++1 | A+++3 |
| Energy label 55 °C | A++1 | A+++3 |
| COP A7/W35 | 4.841 | 5.9✓2 |
| COP A2/W35 | – | 4.952 |
| COP A-7/W35 | – | 3.372 |
| Noise | ||
| Outdoor unit sound power | 42 dB(A)✓1 | 47 dB(A)3 |
| Indoor unit sound power | 31 dB(A)1 | – |
| Refrigerant | ||
| Refrigerant | R2901 | R2902 |
| Refrigerant GWP | 31 | – |
| Refrigerant charge | 1.7 kg✓1 | 2.5 kg2 |
| Electrical | ||
| Max. power input | – | 8 kW2 |
| Connectivity & smart | ||
| SG Ready | – | Yes2 |
Frequently asked questions
Which is better: the Buderus Logatherm WLW176i-10 AR E or the Kermi x-change dynamic pro M?
SCOP (35 °C): Buderus Logatherm WLW176i-10 AR E 4.77, Kermi x-change dynamic pro M 5.7. The Kermi x-change dynamic pro M is better on 5 of 9 comparable points.
What is the SCOP (35 °C) of the Buderus Logatherm WLW176i-10 AR E and the Kermi x-change dynamic pro M?
Buderus Logatherm WLW176i-10 AR E: 4.77. Kermi x-change dynamic pro M: 5.7.
Which is better on refrigerant charge: the Buderus Logatherm WLW176i-10 AR E or the Kermi x-change dynamic pro M?
Buderus Logatherm WLW176i-10 AR E: 1.7 kg. Kermi x-change dynamic pro M: 2.5 kg.
Which is better on COP A7/W35: the Buderus Logatherm WLW176i-10 AR E or the Kermi x-change dynamic pro M?
Kermi x-change dynamic pro M: 5.9. Buderus Logatherm WLW176i-10 AR E: 4.84.
Related comparisons
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How we collect and check this data →
Sources
- Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026
- List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026
- European Product Registry for Energy Labelling (EPREL) – heat pumps — Europese Commissie · accessed 15 Oct 2026