Weishaupt WEB 13/20-A-RMD-A vs AUX ACHP-H14/5R3HA-M
SCOP (35 °C): Weishaupt WEB 13/20-A-RMD-A 4.89, AUX ACHP-H14/5R3HA-M 4.72. The Weishaupt WEB 13/20-A-RMD-A is better on 10 of 13 comparable points.
Who wins where
- Weishaupt WEB 13/20-A-RMD-A
- AUX ACHP-H14/5R3HA-M
Biggest differences
| Fact | WEB 13/20-A-RMD-A | ACHP-H14/5R3HA-M |
|---|---|---|
| Refrigerant GWP | 3 | 675 |
| Heating capacity (A7/W35) | 5.79 kW | 14.5 kW |
| Outdoor unit sound power | 45 dB(A) | 64 dB(A) |
| Refrigerant charge | 2.15 kg | 1.7 kg |
| COP A7/W35 | 5.41 | 4.71 |
| Seasonal efficiency ηs 55 °C | 157 % | 137 % |
Score per area = position (0–100) relative to all 1350 models in this category; higher is better.
| Technical specifications | WeishauptWEB 13/20-A-RMD-A | AUXACHP-H14/5R3HA-M |
|---|---|---|
| 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) | 5.79 kW 2 | 14.5 kW ✓ 3 |
| Rated output 35 °C | 14.58 kW ✓ 1 | 14.5 kW 1 |
| Rated output 55 °C | 14.84 kW ✓ 1 | 14 kW 1 |
| Min. outdoor temperature | -22 °C 2 | – |
| Efficiency | ||
| SCOP (35 °C) | 4.89 ✓ 1 | 4.72 1 |
| SCOP (55 °C) | 4 ✓ 1 | 3.5 1 |
| Seasonal efficiency ηs 35 °C | 193 % ✓ 1 | 188 % 1 |
| Seasonal efficiency ηs 55 °C | 157 % ✓ 1 | 137 % 1 |
| Energy label 35 °C | A, , , 2 | A, , , 3 |
| Energy label 55 °C | A, , , 2 | A, , 3 |
| COP A7/W35 | 5.41 ✓ 1 | 4.71 1 |
| COP A2/W35 | 4.41 1 | – |
| COP A-7/W35 | 3.11 ✓ 1 | 3 1 |
| Noise | ||
| Outdoor unit sound power | 45 dB(A) ✓ 1 | 64 dB(A) 1 |
| Refrigerant | ||
| Refrigerant | R290 1 | R32 1 |
| Refrigerant GWP | 3 ✓ 2 | 675 3 |
| Refrigerant charge | 2.15 kg 1 | 1.7 kg ✓ 1 |
| Electrical | ||
| Max. power input | 8.61 kW 1 | 15.3 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