Bosch Compress CS8800iAW 13 O-T (B) vs Bosch Home Comfort Cooling and Heating airH2O 800 H (6HP) RASM-6VTW2E+HWM-W2E(-B)
SCOP (35 °C): Bosch Compress CS8800iAW 13 O-T (B) 5.37, Bosch Home Comfort Cooling and Heating airH2O 800 H (6HP) RASM-6VTW2E+HWM-W2E(-B) 4.54. The Bosch Compress CS8800iAW 13 O-T (B) is better on 9 of 13 comparable points.
Who wins where
- Bosch Compress CS8800iAW 13 O-T (B)
- Bosch Home Comfort Cooling and Heating airH2O 800 H (6HP) RASM-6VTW2E+HWM-W2E(-B)
Biggest differences
| Fact | Compress CS8800iAW 13 O-T (B) | airH2O 800 H (6HP) RASM-6VTW2E+HWM-W2E(-B) |
|---|---|---|
| Refrigerant charge | 1.7 kg | 1.2 kg |
| Indoor unit sound power | 31 dB(A) | 41 dB(A) |
| COP A7/W35 | 5.4 | 4.2 |
| Seasonal efficiency ηs 55 °C | 162 % | 131 % |
| SCOP (55 °C) | 4.12 | 3.35 |
| Seasonal efficiency ηs 35 °C | 212 % | 179 % |
Score per area = position (0–100) relative to all 1000 models in this category; higher is better.
| Technical specifications | BoschCompress CS8800iAW 13 O-T (B) | Bosch Home Comfort Cooling and HeatingairH2O 800 H (6HP) RASM-6VTW2E+HWM-W2E(-B) |
|---|---|---|
| Grants & market | ||
| Boiler Upgrade Scheme | £7,500 – £9,000 | £7,500 – £9,000 |
| Performance | ||
| Rated output 35 °C | 13 kW 1 | 13 kW 1 |
| Rated output 55 °C | 13 kW 1 | 14 kW ✓ 1 |
| Efficiency | ||
| SCOP (35 °C) | 5.37 ✓ 1 | 4.54 1 |
| SCOP (55 °C) | 4.12 ✓ 1 | 3.35 1 |
| Seasonal efficiency ηs 35 °C | 212 % ✓ 1 | 179 % 1 |
| Seasonal efficiency ηs 55 °C | 162 % ✓ 1 | 131 % 1 |
| COP A7/W35 | 5.4 ✓ 1 | 4.2 1 |
| COP A2/W35 | 4.67 ✓ 1 | 4.25 1 |
| COP A-7/W35 | 2.87 ✓ 1 | 2.85 1 |
| Noise | ||
| Outdoor unit sound power | 45 dB(A) ✓ 1 | 53 dB(A) 1 |
| Indoor unit sound power | 31 dB(A) ✓ 1 | 41 dB(A) 1 |
| Refrigerant | ||
| Refrigerant | R290 1 | R290 1 |
| Refrigerant charge | 1.7 kg 1 | 1.2 kg ✓ 1 |
| Electrical | ||
| Max. power input | 7.7 kW 1 | 5.99 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