Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE vs Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L]
![Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L]](/img/p/heatpumps/panasonic-deutschland-aquarea-wh-wxg25me8-wh-cme8l-480.webp?v=20261002)
SCOP (35 °C): Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE 3.92, Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L] 4.25. The Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L] is better on 12 of 14 comparable points.
Both models in detail
Who wins where
- Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE
- Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L]
Biggest differences
| Fact | Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE | AQUAREA [WH-WXG25ME8 + WH-CME8L] |
|---|---|---|
| Refrigerant charge | 7.1 kg | 3 kg |
| COP A-7/W35 | 3.34 | 2.42 |
| Indoor unit sound power | 45 dB(A) | 35 dB(A) |
| COP A2/W35 | 3.34 | 4.24 |
| COP A7/W35 | 3.65 | 4.5 |
| Outdoor unit sound power | 68 dB(A) | 58 dB(A) |
Score per area = position (0–100) relative to all 1350 models in this category; higher is better.
| Technical specifications | Mitsubishi ElectricEcodan PUHZ-SHW230YKA2 + ERSE-YM9EE | PanasonicAQUAREA [WH-WXG25ME8 + WH-CME8L] |
|---|---|---|
| Grants & market | ||
| Boiler Upgrade Scheme | £7,500 – £9,000 | £7,500 – £9,000 |
| General | ||
| Type (source) | Air-to-water1 | Air-to-water1 |
| Performance | ||
| Rated output 35 °C | 23 kW1 | 25 kW✓1 |
| Rated output 55 °C | 23 kW1 | 25 kW✓1 |
| Efficiency | ||
| SCOP (35 °C) | 3.921 | 4.25✓1 |
| SCOP (55 °C) | 3.21 | 3.58✓1 |
| Seasonal efficiency ηs 35 °C | 154 %1 | 167 %✓1 |
| Seasonal efficiency ηs 55 °C | 125 %1 | 140 %✓1 |
| COP A7/W35 | 3.651 | 4.5✓1 |
| COP A2/W35 | 3.341 | 4.24✓1 |
| COP A-7/W35 | 3.34✓1 | 2.421 |
| SEER (cooling) | 4.321 | 4.58✓1 |
| Noise | ||
| Outdoor unit sound power | 68 dB(A)1 | 58 dB(A)✓1 |
| Indoor unit sound power | 45 dB(A)1 | 35 dB(A)✓1 |
| Refrigerant | ||
| Refrigerant | R410A1 | R2901 |
| Refrigerant charge | 7.1 kg1 | 3 kg✓1 |
| Electrical | ||
| Max. power input | 13.16 kW1 | 15.1 kW1 |
| Connectivity & smart | ||
| SG Ready | Yes1 | Yes1 |
Frequently asked questions
Which is better: the Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE or the Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L]?
SCOP (35 °C): Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE 3.92, Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L] 4.25. The Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L] is better on 12 of 14 comparable points.
What is the SCOP (35 °C) of the Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE and the Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L]?
Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE: 3.92. Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L]: 4.25.
Which is better on refrigerant charge: the Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE or the Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L]?
Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L]: 3 kg. Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE: 7.1 kg.
Which is better on COP A-7/W35: the Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE or the Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L]?
Mitsubishi Electric Ecodan PUHZ-SHW230YKA2 + ERSE-YM9EE: 3.34. Panasonic AQUAREA [WH-WXG25ME8 + WH-CME8L]: 2.42.
Related comparisons
- Mitsubishi ElectricEcodan PUHZ-SHW230YKA2 + ERSE-MEEvsPanasonicAQUAREA [WH-WXG25ME8 + WH-CME8L]
- Mitsubishi ElectricEcodan PUHZ-SHW230YKA2 + ERSE-YM9EEvsPanasonicAQUAREA [WH-WXG20ME8 + WH-CME8L]
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- BoschCompress CS3800iAW 13 OE-T (CS3800iAW 13 O-T + AWEi)vsPanasonicAquarea [WH-ADC16K9E8AN3 / WH-UDZ16KE8]
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How we collect and check this data →
Sources
- List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026