REMKO WKM 170 vs STIEBEL ELTRON WPL-A 13 HK 400 Premium
SCOP (35 °C): REMKO WKM 170 5.17, STIEBEL ELTRON WPL-A 13 HK 400 Premium 4.35. The REMKO WKM 170 is better on 9 of 14 comparable points.
Who wins where
- REMKO WKM 170
- STIEBEL ELTRON WPL-A 13 HK 400 Premium
Biggest differences
| Fact | WKM 170 | WPL-A 13 HK 400 Premium |
|---|---|---|
| Refrigerant charge | 2.55 kg | 5 kg |
| Seasonal efficiency ηs 35 °C | 204 % | 171 % |
| SCOP (35 °C) | 5.17 | 4.35 |
| Rated output 55 °C | 12.9 kW | 14.8 kW |
| ISDE grant (NL) | 3,475 € | 3,950 € |
| Outdoor unit sound power | 62.1 dB(A) | 55 dB(A) |
Score per area = position (0–100) relative to all 1350 models in this category; higher is better.
| Technical specifications | REMKOWKM 170 | STIEBEL ELTRONWPL-A 13 HK 400 Premium |
|---|---|---|
| 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) | – | 8.24 kW 2 |
| Rated output 35 °C | 13.96 kW 1 | 14 kW ✓ 1 |
| Rated output 55 °C | 12.9 kW 1 | 14.8 kW ✓ 1 |
| Efficiency | ||
| SCOP (35 °C) | 5.17 ✓ 1 | 4.35 1 |
| SCOP (55 °C) | 3.65 ✓ 1 | 3.55 1 |
| Seasonal efficiency ηs 35 °C | 204 % ✓ 1 | 171 % 1 |
| Seasonal efficiency ηs 55 °C | 143 % ✓ 1 | 139 % 1 |
| Energy label 35 °C | – | A, , 2 |
| Energy label 55 °C | – | A, , 2 |
| COP A7/W35 | 5.06 ✓ 1 | 4.61 1 |
| COP A2/W35 | 3.84 ✓ 1 | 3.82 1 |
| COP A-7/W35 | 3.34 ✓ 1 | 3 1 |
| Noise | ||
| Outdoor unit sound power | 62.1 dB(A) 1 | 55 dB(A) ✓ 1 |
| Refrigerant | ||
| Refrigerant | R32 1 | R452B 1 |
| Refrigerant GWP | 675 ✓ 3 | 698 2 |
| Refrigerant charge | 2.55 kg ✓ 1 | 5 kg 1 |
| Electrical | ||
| Max. power input | 5 kW 1 | 7.1 kW 1 |
| Connectivity & smart | ||
| SG Ready | Yes 1 | Yes 1 |
| Grants & market | ||
| ISDE grant (NL) | 3,475 € 3 | 3,950 € ✓ 3 |
Sources
- List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 28 Sept 2026
- Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026
- ISDE heat pump notification code list — Rijksdienst voor Ondernemend Nederland (RVO) · accessed 28 Sept 2026