ELCO AEROTOP SPK20 vs Höcker Wärmepumpen cop-star 280 PI-W
SCOP (35 °C): ELCO AEROTOP SPK20 5.25, Höcker Wärmepumpen cop-star 280 PI-W 4.29. The ELCO AEROTOP SPK20 is better on 9 of 13 comparable points.
Who wins where
- ELCO AEROTOP SPK20
- Höcker Wärmepumpen cop-star 280 PI-W
Biggest differences
| Fact | AEROTOP SPK20 | cop-star 280 PI-W |
|---|---|---|
| Refrigerant charge | 3.8 kg | 5.6 kg |
| COP A7/W35 | 4.28 | 6.16 |
| Seasonal efficiency ηs 35 °C | 207 % | 168.7 % |
| SCOP (35 °C) | 5.25 | 4.29 |
| Seasonal efficiency ηs 55 °C | 153 % | 126.3 % |
| SCOP (55 °C) | 3.9 | 3.23 |
Score per area = position (0–100) relative to all 1000 models in this category; higher is better.
| Technical specifications | ELCOAEROTOP SPK20 | Höcker Wärmepumpencop-star 280 PI-W |
|---|---|---|
| Grants & market | ||
| Boiler Upgrade Scheme | £7,500 – £9,000 | £7,500 – £9,000 |
| Performance | ||
| Rated output 35 °C | 18 kW 1 | 18 kW 1 |
| Rated output 55 °C | 18 kW ✓ 1 | 16 kW 1 |
| Efficiency | ||
| SCOP (35 °C) | 5.25 ✓ 1 | 4.29 1 |
| SCOP (55 °C) | 3.9 ✓ 1 | 3.23 1 |
| Seasonal efficiency ηs 35 °C | 207 % ✓ 1 | 168.7 % 1 |
| Seasonal efficiency ηs 55 °C | 153 % ✓ 1 | 126.3 % 1 |
| COP A7/W35 | 4.28 1 | 6.16 ✓ 1 |
| COP A2/W35 | 4.4 ✓ 1 | 4.08 1 |
| COP A-7/W35 | 3.1 ✓ 1 | 2.73 1 |
| Noise | ||
| Outdoor unit sound power | 53 dB(A) ✓ 1 | 61.3 dB(A) 1 |
| Indoor unit sound power | 35 dB(A) 1 | 34.5 dB(A) ✓ 1 |
| Refrigerant | ||
| Refrigerant | R290 1 | R32 1 |
| Refrigerant charge | 3.8 kg ✓ 1 | 5.6 kg 1 |
| Electrical | ||
| Max. power input | 20.1 kW 1 | 9.11 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