STIEBEL ELTRON WPW-I 10 H 400 Premium
The STIEBEL ELTRON WPW-I 10 H 400 Premium is a heat pump with SCOP (35 °C) 6.33 and refrigerant R410A.1,2
Key figures
MT
Rules in Malta
Water Heater Scheme (heat pump water heaters)
UnknownREWS runs a national grant scheme for energy-efficient water heaters in homes; heat pump water heaters are eligible (alongside solar water heaters). The scheme has been extended to 31 December 2026, and part A of the application must be submitted before you buy and install the equipment. Grant amounts: see the REWS page (not verified by us).
Technical specifications
| General | |
|---|---|
| Type (source) | Water-to-water1 |
| Compressors | 11 |
| Capacity control | keine1 |
| Performance | |
| Rated output 35 °C | 10 kW2 |
| Rated output 55 °C | 8 kW2 |
| Efficiency | |
| SCOP (35 °C) | 6.332 |
| SCOP (55 °C) | 3.92 |
| Seasonal efficiency ηs 35 °C | 250 %2 |
| Seasonal efficiency ηs 55 °C | 153 %2 |
| Energy label 35 °C | A+++2 |
| Energy label 55 °C | A+++2 |
| Noise | |
| Indoor unit sound power | 45 dB(A)2 |
| Refrigerant | |
| Refrigerant | R410A1 |
| Refrigerant charge | 2.4 kg1 |
| Electrical | |
| Max. power input | 3.2 kW1 |
| Connectivity & smart | |
| SG Ready | Yes1 |
Similar models
Other brands, same type and a comparable size.
More from STIEBEL ELTRON
- STIEBEL ELTRON LWZ 8 CS Trend SCOP (35 °C): 4.14
- STIEBEL ELTRON WPL 17 ACS classic SCOP (35 °C): 4.5
- STIEBEL ELTRON WPE-I 10 H 400 Plus SCOP (35 °C): 3.75
- STIEBEL ELTRON WPE-I 12.1 Plus H 400 SCOP (35 °C): 5.28
- STIEBEL ELTRON WPL 20 A SCOP (35 °C): 4.7
- STIEBEL ELTRON WPL 20 AC SCOP (35 °C): 4.88
How we collect and check this data →
Frequently asked questions
Sources
- List of eligible heat pumps (BEG) — Bundesamt für Wirtschaft und Ausfuhrkontrolle (BAFA) · accessed 18 Oct 2026
- European Product Registry for Energy Labelling (EPREL) – heat pumps — Europese Commissie · accessed 18 Oct 2026
- Water Heater Scheme (heat pump water heaters) — Regulator for Energy and Water Services (REWS)