Bosch Compress CS5800iAW 5 ORMB-S (AW 5 OR-S + CS5800iAW 12 MB) vs Buderus Buderus Logaplus WP401 WLW166i MBB E (WLW-6 MBB AR & Logatherm WLW176i.2 E, Zubehör)
SCOP (35 °C): Bosch Compress CS5800iAW 5 ORMB-S (AW 5 OR-S + CS5800iAW 12 MB) 4.55, Buderus Buderus Logaplus WP401 WLW166i MBB E (WLW-6 MBB AR & Logatherm WLW176i.2 E, Zubehör) 4.98. The Buderus Buderus Logaplus WP401 WLW166i MBB E (WLW-6 MBB AR & Logatherm WLW176i.2 E, Zubehör) is better on 9 of 14 comparable points.
Who wins where
- Bosch Compress CS5800iAW 5 ORMB-S (AW 5 OR-S + CS5800iAW 12 MB)
- Buderus Buderus Logaplus WP401 WLW166i MBB E (WLW-6 MBB AR & Logatherm WLW176i.2 E, Zubehör)
Biggest differences
| Fact | Compress CS5800iAW 5 ORMB-S (AW 5 OR-S + CS5800iAW 12 MB) | Buderus Logaplus WP401 WLW166i MBB E (WLW-6 MBB AR & Logatherm WLW176i.2 E, Zubehör) |
|---|---|---|
| SEER (cooling) | 2.48 | 3.79 |
| COP A-7/W35 | 2.5 | 3.12 |
| Refrigerant charge | 0.95 kg | 1.13 kg |
| Outdoor unit sound power | 42 dB(A) | 48 dB(A) |
| Seasonal efficiency ηs 35 °C | 179 % | 196 % |
| SCOP (35 °C) | 4.55 | 4.98 |
Score per area = position (0–100) relative to all 1000 models in this category; higher is better.
| Technical specifications | BoschCompress CS5800iAW 5 ORMB-S (AW 5 OR-S + CS5800iAW 12 MB) | BuderusBuderus Logaplus WP401 WLW166i MBB E (WLW-6 MBB AR & Logatherm WLW176i.2 E, Zubehör) |
|---|---|---|
| Grants & market | ||
| Boiler Upgrade Scheme | £7,500 – £9,000 | £7,500 – £9,000 |
| Performance | ||
| Rated output 35 °C | 6.2 kW ✓ 1 | 6 kW 1 |
| Rated output 55 °C | 6.2 kW ✓ 1 | 6 kW 1 |
| Efficiency | ||
| SCOP (35 °C) | 4.55 1 | 4.98 ✓ 1 |
| SCOP (55 °C) | 3.48 1 | 3.65 ✓ 1 |
| Seasonal efficiency ηs 35 °C | 179 % 1 | 196 % ✓ 1 |
| Seasonal efficiency ηs 55 °C | 136 % 1 | 143 % ✓ 1 |
| COP A7/W35 | 4.82 1 | 4.83 ✓ 1 |
| COP A2/W35 | 3.89 1 | 4.19 ✓ 1 |
| COP A-7/W35 | 2.5 1 | 3.12 ✓ 1 |
| SEER (cooling) | 2.48 1 | 3.79 ✓ 1 |
| Noise | ||
| Outdoor unit sound power | 42 dB(A) ✓ 1 | 48 dB(A) 1 |
| Indoor unit sound power | 37 dB(A) 1 | 34 dB(A) ✓ 1 |
| Refrigerant | ||
| Refrigerant | R290 1 | R290 1 |
| Refrigerant charge | 0.95 kg ✓ 1 | 1.13 kg 1 |
| Electrical | ||
| Max. power input | 3.2 kW 1 | 2.6 kW 1 |
| Connectivity & smart | ||
| SG Ready | Yes 1 | Yes 1 |
Sources
- List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026