Heat Pump Water Heater Stiebel Eltron WWK 300 – 291 Litres
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Service workshop in Germany
Direct support
+49 5423 477400
Technical specifications
| Delivery time | 3–5 working days |
|---|
Stiebel Eltron WWK 300 electronic SOL –
291 litres of hot water,
Heat pump efficiency for your home.
Heat pump water heater · 291 L cylinder · 0.54 kW heat pump power input · 1.5 kW immersion heater · Solar-compatible · CE / VDE / EMC certified
Hot water at the push of a button – but at a fraction of the energy cost of a conventional electric boiler. The Stiebel Eltron WWK 300 electronic SOL is a highly efficient heat pump water heater with a storage capacity of 291 litres – ideal for families, larger households and anyone who wants to save on energy costs for the long term.
For decades Stiebel Eltron has stood for German engineering quality in heating and hot water technology. The WWK 300 electronic SOL uses the ambient air as a free heat source, is solar-compatible and, thanks to its integrated immersion heater, can also be used as backup heating – for a reliable hot water supply all year round.
Your problem – our solution
What makes the WWK 300 electronic SOL special
🌡️ Heat pump efficiency
The integrated heat pump works with just 0.54 kW (A15/W10-55) and draws the remaining energy from the ambient air – for maximum efficiency with minimal power consumption.
💧 291-litre storage capacity
The generous 291-litre hot water cylinder reliably supplies even larger households with hot water – no waiting, no shortages, even with simultaneous use.
☀️ Solar-compatible (SOL)
The SOL version is designed to be combined with a solar system. Surplus solar energy is used directly to heat water – for even lower running costs and maximum self-sufficiency.
⚡ Integrated 1.5 kW immersion heater
A built-in electric immersion heater with 1.5 kW output cuts in automatically when the heat pump alone is not enough – for example at very low outside temperatures or during high demand.
🌡️ Wide operating range
Operating limits from +6 °C to +42 °C ambient temperature – ideal for cellars, utility rooms, garages and other typical installation locations in residential buildings.
🔒 IP24 protection & safety
Protection rating IP24 protects the unit against splashing water – ideal for damp environments such as cellars or plant rooms. Fused via a standard C16 A circuit breaker.
🛡️ Legionella protection up to 65 °C
The maximum permissible hot water temperature of 65 °C allows regular thermal disinfection of the cylinder – for hygienically safe hot water in line with current standards.
🔧 High-quality heat exchanger
The enamelled steel heat exchanger with 1.3 m² surface area and 11 litres nominal capacity transfers heat efficiently and durably – designed for temperatures up to 70 °C and 1.0 MPa operating pressure.
Environmentally friendly through efficiency: Refrigerant R134a (GWP100: 1430), charge weight 850 g, equivalent to 1.22 t CO₂e. Heat pump technology drastically reduces power consumption compared with conventional electric water heating – good for your wallet and the environment.
Technical data at a glance
⚙️ General unit data
| Feature | Value |
|---|---|
| Model | WWK 300 electronic SOL |
| Rated voltage | 1/N/PE ~ 220–240 V, 50/60 Hz |
| Electrical fuse protection | 1 × C16 A |
| Max. connected load (PNmax) | 2.2 kW |
| Protection rating | IP24 |
| Operating limits (ambient temperature) | +6 °C to +42 °C |
💨 Heat pump
| Feature | Value |
|---|---|
| Power input PN (A15/W10-55) | 0.54 kW |
| Current input IN (A15/W10-55) | 2.5 A |
| Refrigerant | R134a (GWP100: 1430) |
| Charge weight | 850 g / 1.22 t CO₂e |
| Perm. operating pressure | 2.6 MPa |
🔄 Heating heat exchanger
| Feature | Value |
|---|---|
| Heat transfer surface | 1.3 m² |
| Material | Enamelled steel (St em) |
| Nominal capacity | 11 L |
| Perm. heat exchanger temperature | 70 °C |
| Perm. operating pressure | 1.0 MPa |
💧 Storage cylinder
| Feature | Value |
|---|---|
| Nominal capacity | 291 L |
| Cylinder material | Enamelled steel (St em) |
| Perm. hot water temperature | 65 °C |
| Perm. operating pressure | 0.85 MPa |
| Immersion heater rated output (PN) | 1.5 kW |
🏅 Certifications & standards
Want to heat water more efficiently and cut energy costs for good?
The Stiebel Eltron WWK 300 electronic SOL is your investment in cheaper hot water – reliable for decades, solar-compatible and made by one of Europe's most renowned manufacturers.
Order now for fast delivery. 💧
Family tradition meets engineering excellence
Founded in 2007, we are a family-owned business that has been setting standards in portable power for almost two decades. What started as a small vision has grown into one of the most trusted names for professionals and discerning private customers alike.
With us, you're not just buying a product – you're getting a promise. In our in-house certified service workshop in Germany, every unit is thoroughly tested before it ships. And our team of experts is there for you long after your purchase – personal, knowledgeable and on hand whenever you need us.
- 2007
- Founded
- In-house
- Service & workshop
Knetterhauser Straße 26
