August Brötje BLW Eco-P 9.2 vs Bosch Home Comfort Cooling and Heating airH2O 600 S (3.5HP) RAS-3.5WHVRP2E+RWM-3.5R3E
SCOP (35 °C): August Brötje BLW Eco-P 9.2 5.2, Bosch Home Comfort Cooling and Heating airH2O 600 S (3.5HP) RAS-3.5WHVRP2E+RWM-3.5R3E 4.49. The August Brötje BLW Eco-P 9.2 is better on 7 of 13 comparable points.
Who wins where
- August Brötje BLW Eco-P 9.2
- Bosch Home Comfort Cooling and Heating airH2O 600 S (3.5HP) RAS-3.5WHVRP2E+RWM-3.5R3E
Biggest differences
| Fact | BLW Eco-P 9.2 | airH2O 600 S (3.5HP) RAS-3.5WHVRP2E+RWM-3.5R3E |
|---|---|---|
| Refrigerant charge | 1.1 kg | 1.8 kg |
| Indoor unit sound power | 30 dB(A) | 41 dB(A) |
| COP A7/W35 | 5 | 6.13 |
| Seasonal efficiency ηs 55 °C | 152.7 % | 129 % |
| SCOP (55 °C) | 3.89 | 3.3 |
| COP A2/W35 | 3.6 | 4.2 |
Score per area = position (0–100) relative to all 1000 models in this category; higher is better.
| Technical specifications | August BrötjeBLW Eco-P 9.2 | Bosch Home Comfort Cooling and HeatingairH2O 600 S (3.5HP) RAS-3.5WHVRP2E+RWM-3.5R3E |
|---|---|---|
| Grants & market | ||
| Boiler Upgrade Scheme | £7,500 – £9,000 | £7,500 – £9,000 |
| Performance | ||
| Rated output 35 °C | 8.5 kW 1 | 8.5 kW 1 |
| Rated output 55 °C | 8 kW 1 | 8 kW 1 |
| Efficiency | ||
| SCOP (35 °C) | 5.2 ✓ 1 | 4.49 1 |
| SCOP (55 °C) | 3.89 ✓ 1 | 3.3 1 |
| Seasonal efficiency ηs 35 °C | 205.1 % ✓ 1 | 177 % 1 |
| Seasonal efficiency ηs 55 °C | 152.7 % ✓ 1 | 129 % 1 |
| COP A7/W35 | 5 1 | 6.13 ✓ 1 |
| COP A2/W35 | 3.6 1 | 4.2 ✓ 1 |
| COP A-7/W35 | 2.9 1 | 2.96 ✓ 1 |
| Noise | ||
| Outdoor unit sound power | 49 dB(A) ✓ 1 | 53 dB(A) 1 |
| Indoor unit sound power | 30 dB(A) ✓ 1 | 41 dB(A) 1 |
| Refrigerant | ||
| Refrigerant | R290 1 | R32 1 |
| Refrigerant charge | 1.1 kg ✓ 1 | 1.8 kg 1 |
| Electrical | ||
| Max. power input | 3.9 kW 1 | 5.91 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