Stiebel Eltron Water Heater

WWK 222 / WWK 222H: ~220 L tank → ~360 L of water at 40 °C (cold inlet 20 °C).

WWK 302 / WWK 302H: ~302 L tank → ~540 L of water at 40 °C (cold inlet 20 °C).

Uses ambient air to heat water, typically saving up to ~74 % on hot water energy use compared to traditional electric storage systems.

Low power draw (~0.55 kW for heat pump operation) keeps running costs down.

Can be connected to solar PV systems for further energy savings.

German engineered with durable enamel-coated tanks and a maintenance-free impressed current anode (protects against corrosion).

Quiet operation thanks to an encased compressor.

“H” models include an integrated 1.7 kW boosting element for periods of extra demand or colder

If you already have an older Stiebel Eltron heat pump system such as the WWK300A, SunCity Hot Water can help. Our licensed technicians have experience servicing, repairing, and maintaining existing Stiebel Eltron systems,

If you own a Stiebel Eltron WWK300AH, SunCity Hot Water provides expert servicing and repairs. Our technicians are experienced with Stiebel Eltron systems and can maintain efficiency, diagnose faults, and advise on repairs or replacement to keep your hot water running reliably.

If your high‑rise apartment or commercial property has a Stiebel Eltron DEL 18 or DEL 27 3‑phase electric instantaneous water heater, SunCity can help. These compact, high‑efficiency systems are found in nearly every modern Sunny Coast and Brisbane building built over the last decade, and like all hot water systems, they need regular servicing to maintain performance. Our licensed technicians specialise in diagnosing, repairing, and servicing DEL 18 and Stiebel Eltron DEL 27 Plus units, ensuring reliable hot water, optimal energy efficiency, and peace of mind for your property.

Replacing a Stiebel Eltron starts with matching your existing unit's size and electrical requirements. Most DEL and DHE units run on 3-phase power, so we confirm your model, phase and circuit-breaker rating before installing. A licensed electrician then fits and commissions the new unit — we handle the whole process across Brisbane and the Sunshine Coast.

Yes — regular servicing keeps your Stiebel Eltron instant system running efficiently and helps prevent breakdowns. We service Stiebel Eltron DEL and DHE units across Brisbane and the Sunshine Coast, checking the unit's operation, temperature accuracy and water connections.

Often, yes. No hot water, fluctuating temperature or a tripped breaker on a Stiebel Eltron is usually a failed heating element, a sensor fault or a power-supply issue. We diagnose and repair these across Brisbane and the Sunshine Coast, and if the unit can't be economically repaired we can replace it the same day in most cases. Call 1300 728 122.

Most Stiebel Eltron DEL and DHE instant heaters need 3-phase power. You can often tell at your switchboard — a 3-phase supply has a larger main switch with three poles rather than one. If you're not sure, our licensed electricians will confirm your supply and circuit-breaker rating before any replacement, right across Brisbane and the Sunshine Coast.

Yes. Stiebel Eltron DEL and DHE units are 3-phase electric, so by law they must be installed, serviced and repaired by a licensed electrician. SunCity Hot Water's electricians are fully licensed and experienced with the Stiebel Eltron instant range across Brisbane, the Sunshine Coast, Bribie Island and Gympie.