Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) vs Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E)
SCOP (35 °C): Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) 4.57, Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E) 4.98. The Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E) is better on 7 of 14 comparable points.
Both models in detail
Who wins where
- Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E)
- Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E)
Biggest differences
| Fact | Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) | Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E) |
|---|---|---|
| SEER (cooling) | 2.48 | 3.79 |
| COP A-7/W35 | 2.51 | 3.12 |
| Refrigerant charge | 0.95 kg | 1.13 kg |
| Outdoor unit sound power | 42 dB(A) | 48 dB(A) |
| Indoor unit sound power | 31 dB(A) | 34 dB(A) |
| SCOP (35 °C) | 4.57 | 4.98 |
Score per area = position (0–100) relative to all 1350 models in this category; higher is better.
| Technical specifications | BoschCompress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) | BuderusLogaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E) |
|---|---|---|
| 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 | 6.2 kW✓1 | 6 kW1 |
| Rated output 55 °C | 6.2 kW✓1 | 6 kW1 |
| Efficiency | ||
| SCOP (35 °C) | 4.571 | 4.98✓1 |
| SCOP (55 °C) | 3.51 | 3.65✓1 |
| Seasonal efficiency ηs 35 °C | 180 %1 | 196 %✓1 |
| Seasonal efficiency ηs 55 °C | 137 %1 | 143 %✓1 |
| COP A7/W35 | 4.85✓1 | 4.831 |
| COP A2/W35 | 3.921 | 4.19✓1 |
| COP A-7/W35 | 2.511 | 3.12✓1 |
| SEER (cooling) | 2.481 | 3.79✓1 |
| Noise | ||
| Outdoor unit sound power | 42 dB(A)✓1 | 48 dB(A)1 |
| Indoor unit sound power | 31 dB(A)✓1 | 34 dB(A)1 |
| Refrigerant | ||
| Refrigerant | R2901 | R2901 |
| Refrigerant charge | 0.95 kg✓1 | 1.13 kg1 |
| Electrical | ||
| Max. power input | 3.1 kW1 | 2.6 kW1 |
| Connectivity & smart | ||
| SG Ready | Yes1 | Yes1 |
Frequently asked questions
Which is better: the Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) or the Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E)?
SCOP (35 °C): Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) 4.57, Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E) 4.98. The Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E) is better on 7 of 14 comparable points.
What is the SCOP (35 °C) of the Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) and the Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E)?
Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E): 4.57. Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E): 4.98.
Which is better on SEER (cooling): the Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) or the Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E)?
Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E): 3.79. Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E): 2.48.
Which is better on COP A-7/W35: the Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E) or the Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E)?
Buderus Logaplus M WLW166i-6 MBB AR E (WLW-6 MBB AR & Logatherm WLW176i.2 E): 3.12. Bosch Compress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E): 2.51.
Related comparisons
- BoschCompress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E)vsBuderusLogaplus M WLW176i-5 AR TP70 (Logatherm WLW-5 MB AR + WLW176i-12 TP70)
- BoschCompress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E)vsBuderusLogaplus M WLW186i-5 AR T180 (W) (Logatherm WLW-5 MB AR + WLW186i-12 T180 (W))
- BoschCompress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E)vsBuderusLogaplus M WLW186i-5 AR TP70 (Logatherm WLW-5 MB AR + WLW186i-12 TP70)
- BoschCompress CS5800iAW 5 ORE-S (AW 5 OR-S + CS5800iAW 12 E)vsBuderusWLW186i-5AR TP70
- 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)
How we collect and check this data →
Sources
- List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026