Weishaupt WAB 8-A-RME-A vs SolaX ALT06-SF0
SCOP (35 °C): Weishaupt WAB 8-A-RME-A 4.78, SolaX ALT06-SF0 4.66. The SolaX ALT06-SF0 is better on 8 of 13 comparable points.
Who wins where
- Weishaupt WAB 8-A-RME-A
- SolaX ALT06-SF0
Biggest differences
| Fact | WAB 8-A-RME-A | ALT06-SF0 |
|---|---|---|
| Refrigerant charge | 1.3 kg | 0.74 kg |
| Heating capacity (A7/W35) | 4.06 kW | 6.25 kW |
| Seasonal efficiency ηs 55 °C | 140 % | 157 % |
| SCOP (55 °C) | 3.58 | 4 |
| Seasonal efficiency ηs 35 °C | 188 % | 201 % |
| Rated output 55 °C | 5.8 kW | 6 kW |
Score per area = position (0–100) relative to all 1350 models in this category; higher is better.
| Technical specifications | WeishauptWAB 8-A-RME-A | SolaXALT06-SF0 |
|---|---|---|
| Grants & market | ||
| Boiler Upgrade Scheme | £7,500 – £9,000 | £7,500 – £9,000 |
| General | ||
| Type (source) | Air-to-water 1 | Air-to-water 1 |
| Performance | ||
| Heating capacity (A7/W35) | 4.06 kW 2 | 6.25 kW ✓ 3 |
| Rated output 35 °C | 6 kW 1 | 6 kW 1 |
| Rated output 55 °C | 5.8 kW 1 | 6 kW ✓ 1 |
| Min. outdoor temperature | – | -22 °C 3 |
| Efficiency | ||
| SCOP (35 °C) | 4.78 ✓ 1 | 4.66 1 |
| SCOP (55 °C) | 3.58 1 | 4 ✓ 1 |
| Seasonal efficiency ηs 35 °C | 188 % 1 | 201 % ✓ 1 |
| Seasonal efficiency ηs 55 °C | 140 % 1 | 157 % ✓ 1 |
| Energy label 35 °C | A, , , 2 | A, , , 3 |
| Energy label 55 °C | A, , 2 | A, , , 3 |
| COP A7/W35 | 4.89 1 | 5 ✓ 1 |
| COP A2/W35 | 4.66 1 | – |
| COP A-7/W35 | 2.97 ✓ 1 | 2.93 1 |
| Noise | ||
| Outdoor unit sound power | 49 dB(A) 1 | 48 dB(A) ✓ 1 |
| Refrigerant | ||
| Refrigerant | R290 1 | R290 1 |
| Refrigerant GWP | 3 2 | 3 3 |
| Refrigerant charge | 1.3 kg 1 | 0.74 kg ✓ 1 |
| Electrical | ||
| Max. power input | 2.7 kW 1 | 2.7 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
- Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026
- Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026