August Brötje BLW Mono-KP 6.1 vs Buderus Logaplus M WLW166i-6 MBB AR T180 (WLW-6 MBB AR & Logatherm WLW166i MBB T180)
SCOP (35 °C): August Brötje BLW Mono-KP 6.1 4.99, Buderus Logaplus M WLW166i-6 MBB AR T180 (WLW-6 MBB AR & Logatherm WLW166i MBB T180) 4.98. The August Brötje BLW Mono-KP 6.1 is better on 9 of 13 comparable points.
Who wins where
- August Brötje BLW Mono-KP 6.1
- Buderus Logaplus M WLW166i-6 MBB AR T180 (WLW-6 MBB AR & Logatherm WLW166i MBB T180)
Biggest differences
| Fact | BLW Mono-KP 6.1 | Logaplus M WLW166i-6 MBB AR T180 (WLW-6 MBB AR & Logatherm WLW166i MBB T180) |
|---|---|---|
| Refrigerant charge | 1.5 kg | 1.13 kg |
| Indoor unit sound power | 31.7 dB(A) | 40 dB(A) |
| COP A7/W35 | 5.06 | 4.83 |
| Outdoor unit sound power | 46 dB(A) | 48 dB(A) |
| SCOP (55 °C) | 3.73 | 3.65 |
| Seasonal efficiency ηs 55 °C | 146 % | 143 % |
Score per area = position (0–100) relative to all 1000 models in this category; higher is better.
| Technical specifications | August BrötjeBLW Mono-KP 6.1 | BuderusLogaplus M WLW166i-6 MBB AR T180 (WLW-6 MBB AR & Logatherm WLW166i MBB T180) |
|---|---|---|
| Grants & market | ||
| Boiler Upgrade Scheme | £7,500 – £9,000 | £7,500 – £9,000 |
| Performance | ||
| Rated output 35 °C | 6 kW 1 | 6 kW 1 |
| Rated output 55 °C | 6 kW 1 | 6 kW 1 |
| Efficiency | ||
| SCOP (35 °C) | 4.99 ✓ 1 | 4.98 1 |
| SCOP (55 °C) | 3.73 ✓ 1 | 3.65 1 |
| Seasonal efficiency ηs 35 °C | 197 % ✓ 1 | 196 % 1 |
| Seasonal efficiency ηs 55 °C | 146 % ✓ 1 | 143 % 1 |
| COP A7/W35 | 5.06 ✓ 1 | 4.83 1 |
| COP A2/W35 | 4.26 ✓ 1 | 4.19 1 |
| COP A-7/W35 | 3.18 ✓ 1 | 3.12 1 |
| Noise | ||
| Outdoor unit sound power | 46 dB(A) ✓ 1 | 48 dB(A) 1 |
| Indoor unit sound power | 31.7 dB(A) ✓ 1 | 40 dB(A) 1 |
| Refrigerant | ||
| Refrigerant | R290 1 | R290 1 |
| Refrigerant charge | 1.5 kg 1 | 1.13 kg ✓ 1 |
| Electrical | ||
| Max. power input | 4.2 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