Clivet WiSAN-PME 1 S 4.1 vs Rotenso HES40X1o/HES60X1i
SCOP (35 °C): Clivet WiSAN-PME 1 S 4.1 5.19, Rotenso HES40X1o/HES60X1i 4.89. The Clivet WiSAN-PME 1 S 4.1 is better on 8 of 13 comparable points.
Who wins where
- Clivet WiSAN-PME 1 S 4.1
- Rotenso HES40X1o/HES60X1i
Biggest differences
| Fact | WiSAN-PME 1 S 4.1 | HES40X1o/HES60X1i |
|---|---|---|
| Refrigerant GWP | 3 | 675 |
| Refrigerant charge | 1.1 kg | 1.65 kg |
| ISDE grant (NL) | 2,800 € | 2,350 € |
| SCOP (55 °C) | 3.82 | 3.44 |
| Seasonal efficiency ηs 55 °C | 149 % | 135 % |
| SCOP (35 °C) | 5.19 | 4.89 |
Score per area = position (0–100) relative to all 1350 models in this category; higher is better.
| Technical specifications | ClivetWiSAN-PME 1 S 4.1 | RotensoHES40X1o/HES60X1i |
|---|---|---|
| Grants & market | ||
| SEAI Heat Pump System Grant | €14,500 | €14,500 |
| General | ||
| Type (source) | Air-to-water 1 | Air-to-water 2 |
| Performance | ||
| Heating capacity (A7/W35) | 8.4 kW ✓ 1 | 8 kW 2 |
| Rated output 35 °C | 8 kW 1 | 8 kW 2 |
| Rated output 55 °C | 6.8 kW 1 | 7 kW ✓ 2 |
| Min. outdoor temperature | -22 °C 1 | -22 °C 2 |
| Efficiency | ||
| SCOP (35 °C) | 5.19 ✓ 1 | 4.89 2 |
| SCOP (55 °C) | 3.82 ✓ 1 | 3.44 2 |
| Seasonal efficiency ηs 35 °C | 204 % ✓ 1 | 193 % 2 |
| Seasonal efficiency ηs 55 °C | 149 % ✓ 1 | 135 % 2 |
| Energy label 35 °C | A, , , 1 | A, , , 2 |
| Energy label 55 °C | A, , 1 | A, , 2 |
| COP A7/W35 | 5 1 | 5 2 |
| Noise | ||
| Outdoor unit sound power | 60 dB(A) 1 | 60 dB(A) 2 |
| Indoor unit sound power | – | 41 dB(A) 2 |
| Refrigerant | ||
| Refrigerant | R290 1 | R32 2 |
| Refrigerant GWP | 3 ✓ 1 | 675 2 |
| Refrigerant charge | 1.1 kg ✓ 1 | 1.65 kg 2 |
| Grants & market | ||
| ISDE grant (NL) | 2,800 € ✓ 3 | 2,350 € 3 |
Sources
- 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
- ISDE heat pump notification code list — Rijksdienst voor Ondernemend Nederland (RVO) · accessed 28 Sept 2026