Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB) vs Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5]
![Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5]](/img/p/heatpumps/panasonic-deutschland-aquarea-wh-sdc0309k3e5-wh-udz09ke5-480.webp?v=20261002)
SCOP (35 °C): Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB) 4.56, Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5] 4.44. The Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB) is better on 7 of 14 comparable points.
Both models in detail
Who wins where
- Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB)
- Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5]
Biggest differences
| Fact | Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB) | Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5] |
|---|---|---|
| SEER (cooling) | 2.56 | 5.27 |
| Refrigerant charge | 0.95 kg | 1.3 kg |
| Outdoor unit sound power | 42 dB(A) | 56 dB(A) |
| Rated output 35 °C | 6.6 kW | 8 kW |
| Rated output 55 °C | 6.6 kW | 8 kW |
| COP A-7/W35 | 2.35 | 2.81 |
Score per area = position (0–100) relative to all 1350 models in this category; higher is better.
| Technical specifications | BoschCompress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB) | PanasonicAquarea [WH-SDC0309K3E5 / WH-UDZ09KE5] |
|---|---|---|
| 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 | 6.6 kW1 | 8 kW✓1 |
| Rated output 55 °C | 6.6 kW1 | 8 kW✓1 |
| Efficiency | ||
| SCOP (35 °C) | 4.56✓1 | 4.441 |
| SCOP (55 °C) | 3.481 | 3.58✓1 |
| Seasonal efficiency ηs 35 °C | 180 %✓1 | 175 %1 |
| Seasonal efficiency ηs 55 °C | 136 %1 | 140 %✓1 |
| COP A7/W35 | 4.82✓1 | 4.551 |
| COP A2/W35 | 4✓1 | 3.891 |
| COP A-7/W35 | 2.351 | 2.81✓1 |
| SEER (cooling) | 2.561 | 5.27✓1 |
| Noise | ||
| Outdoor unit sound power | 42 dB(A)✓1 | 56 dB(A)1 |
| Indoor unit sound power | 37 dB(A)✓1 | 41 dB(A)1 |
| Refrigerant | ||
| Refrigerant | R2901 | R321 |
| Refrigerant charge | 0.95 kg✓1 | 1.3 kg1 |
| Electrical | ||
| Max. power input | 3.2 kW1 | 3.58 kW1 |
| Connectivity & smart | ||
| SG Ready | Yes1 | Yes1 |
Frequently asked questions
Which is better: the Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB) or the Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5]?
SCOP (35 °C): Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB) 4.56, Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5] 4.44. The Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB) is better on 7 of 14 comparable points.
What is the SCOP (35 °C) of the Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB) and the Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5]?
Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB): 4.56. Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5]: 4.44.
Which is better on SEER (cooling): the Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB) or the Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5]?
Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5]: 5.27. Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB): 2.56.
Which is better on refrigerant charge: the Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB) or the Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5]?
Bosch Compress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB): 0.95 kg. Panasonic Aquarea [WH-SDC0309K3E5 / WH-UDZ09KE5]: 1.3 kg.
Related comparisons
- BoschCompress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB)vsPanasonicAquarea [WH-SDC0509L3E5 / WH-WDG07LE5]
- BoschCompress CS5800iAW 7 ORMB-S (AW 7 OR-S + CS5800iAW 12 MB)vsBuderusLogaplus M WLW186i-7 AR E (W) (Logatherm WLW-7 MB AR + WLW186i-12 E (W))
- BoschCompress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E)vsBuderusLogaplus M WLW176i-7 AR TP70 (Logatherm WLW-7 MB AR + WLW176i-12 TP70)
- BoschCompress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E)vsBuderusLogaplus M WLW186i-7 AR TP70 (Logatherm WLW-7 MB AR + WLW186i-12 TP70)
- BoschCompress CS6800iAW 7 ORM-S (AW 7 OR-S + CS6800iAW 12 M)vsBuderusLogaplus M WLW186i-7 AR E (W) (Logatherm WLW-7 MB AR + WLW186i-12 E (W))
- BoschCompress CS6800iAW 7 ORM-S (AW 7 OR-S + CS6800iAW 12 M)vsSTIEBEL ELTRONWPL-A 07.2 Plus HK 230
How we collect and check this data →
Sources
- List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026