REMKO SQW 405 Pro Single vs Tulip Wise Tulip Next 50.3
SCOP (35 °C): REMKO SQW 405 Pro Single 3.85, Tulip Wise Tulip Next 50.3 3.97. The Tulip Wise Tulip Next 50.3 is better on 6 of 13 comparable points.
Who wins where
- REMKO SQW 405 Pro Single
- Tulip Wise Tulip Next 50.3
Biggest differences
| Fact | SQW 405 Pro Single | Tulip Next 50.3 |
|---|---|---|
| Refrigerant charge | 4 kg | 4.8 kg |
| ISDE grant (NL) | 6,875 € | 8,000 € |
| COP A7/W35 | 4.41 | 3.9 |
| Rated output 35 °C | 39.5 kW | 35.4 kW |
| Rated output 55 °C | 35.35 kW | 32.11 kW |
| Outdoor unit sound power | 68 dB(A) | 62 dB(A) |
Score per area = position (0–100) relative to all 1350 models in this category; higher is better.
| Technical specifications | REMKOSQW 405 Pro Single | Tulip WiseTulip Next 50.3 |
|---|---|---|
| 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 | ||
| Rated output 35 °C | 39.5 kW ✓ 1 | 35.4 kW 1 |
| Rated output 55 °C | 35.35 kW ✓ 1 | 32.11 kW 1 |
| Efficiency | ||
| SCOP (35 °C) | 3.85 1 | 3.97 ✓ 1 |
| SCOP (55 °C) | 3.23 1 | 3.33 ✓ 1 |
| Seasonal efficiency ηs 35 °C | 151 % 1 | 155.9 % ✓ 1 |
| Seasonal efficiency ηs 55 °C | 126 % 1 | 130 % ✓ 1 |
| COP A7/W35 | 4.41 ✓ 1 | 3.9 1 |
| COP A2/W35 | 3.75 1 | – |
| COP A-7/W35 | 3.06 ✓ 1 | 2.96 1 |
| Noise | ||
| Outdoor unit sound power | 68 dB(A) 1 | 62 dB(A) ✓ 1 |
| Refrigerant | ||
| Refrigerant | R290 1 | R290 1 |
| Refrigerant GWP | 3 2 | 3 2 |
| Refrigerant charge | 4 kg ✓ 1 | 4.8 kg 1 |
| Electrical | ||
| Max. power input | 21 kW 1 | 30.3 kW 1 |
| Connectivity & smart | ||
| SG Ready | Yes 1 | Yes 1 |
| Grants & market | ||
| ISDE grant (NL) | 6,875 € 2 | 8,000 € ✓ 2 |
Sources
- List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 27 Sept 2026
- ISDE heat pump notification code list — Rijksdienst voor Ondernemend Nederland (RVO) · accessed 28 Sept 2026