STIEBEL ELTRONLWZ 07.1 Premium HKWL 230
The STIEBEL ELTRON LWZ 07.1 Premium HKWL 230 is an air-to-water heat pump with a SCOP of 4.2 (35 °C) and a sound power level of 56 dB(A).1,2,3
Key figures
Technical specifications
| General | |
|---|---|
| Type (source) | Air-to-water1 |
| Compressors | 11 |
| Capacity control | Inverter1 |
| Performance | |
| Heating capacity (A7/W35) | 2.71 kW3 |
| Rated output 35 °C | 7.23 kW1 |
| Rated output 55 °C | 7.23 kW1 |
| Efficiency | |
| SCOP (35 °C) | 4.21 |
| SCOP (55 °C) | 3.281 |
| Seasonal efficiency ηs 35 °C | 165 %1 |
| Seasonal efficiency ηs 55 °C | 128 %1 |
| Energy label 35 °C | A, , 3 |
| Energy label 55 °C | A, , 3 |
| COP A7/W35 | 5.771 |
| COP A2/W35 | 3.971 |
| COP A-7/W35 | 2.711 |
| Noise | |
| Outdoor unit sound power | 56 dB(A)1 |
| Indoor unit sound power | 53 dB(A)1 |
| Refrigerant | |
| Refrigerant | R2901 |
| Refrigerant GWP | 33 |
| Refrigerant charge | 1.24 kg1 |
| Electrical | |
| Max. power input | 12.55 kW1 |
| Connectivity & smart | |
| SG Ready | Yes1 |
| Grants & market | |
| ISDE grant (NL) | 2,375 €2 |
Manufacturer documentation
- Product page
- Datasheet / specifications — LWZ 07.1 Premium HKWL 230 – Technisches Datenblatt
External links to STIEBEL ELTRON's official website. The manufacturer may change or move documents; where they differ, the manufacturer's latest version applies.
Compare with
Frequently asked questions
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
- Heat Pump Keymark certificates — EHPA / DIN CERTCO (Heat Pump KEYMARK) · accessed 29 Sept 2026