Stiebel Eltron WWK302 300 Litre Heat Pump



Free Delivery To most metro areas of Australia

Installation Available Brisbane Area Only

Stiebel Eltron 100 years


  • 5 years cylinder and condenser
  • 2 years sealed refrigeration system, including compressor, evaporator, valves and associated pipe work. All other electrical componentry
  • 1 year T&P relief valve
Brochure Owners Manual


Stiebel Eltron WWK302 300 Litre Heat Pump


Stiebel Eltron WWK302 300 Litre Heat Pump sets a new benchmark for heat pumps in the Australian market. Not only are they great looking but there are many new innovations incorporated in the sophisticated design. The great new features include a maintenance free current impressed anode, active defrost for operation down to minus 5°C, the option to connect the heat pumps with solar PV systems and the ability to transport them horizontally.

  • German engineered
  • Designed for Australian conditions
  • 17% lower heat loss due to improved tank insulation compared to the previous model
  • Quiet operation with new encased compressor design
  • Suitable for hard or soft water areas with maintenance free current impressed anode
  • Operates down to minus 5°C, ideal for cold climates
  • Unique roll bond condensor technology for optimal heat transfer
  • Active defrost function maintains operation in cold climates automatically
  • Single piece design for ease of installation
  • Ideal to operate with solar PV system
Model number WWK 222 and WWK 222H WWK 302 and WWK 302H
Power consumption at (EN16147/A15) 0.55 kW 0.55 kW
Power consumption smart element H-model only: 1.7 kW H-model only: 1.7 kW
Rated voltage 240 V 240 V
Rated current 10 Amp 10 Amp
Phases 1/N/PE 1/N/PE
Electrical Installation As per AS/NZS3000
Installation requirements AS/NZS3500.4.2 & local requirements
Type of installation Outdoor or Indoor 13m3 Outdoor or Indoor 13m3
Cylinder capacity 220 Litres 302 Litres
Permissible operating pressure 850kPa 850 kPa
Seasonal coefficient of performance (COP) 3.94 3.58
Application range -5 to +42°C -5 to +42°C
Air flow rate 55 0m3/h 550 m3/h
IP Rating IP24 IP24
Refrigerant R134a R134a
Refrigerant capacity 0.85 kg 0.85 kg
Height 1553-1569 mm (adjustable feet) 1921-1937 mm (adjustable feet)
Diameter 690 mm 690 mm
Weight (empty) 120 kg 135 kg
Weight (filled with water) 340 kg 437 kg
Approvals WaterMark Lic No. WMKA00301, AS3498
High quality design from Stiebel Eltron.
  • German engineered, designed for Australian conditions
  • Market leader in heat pump technology since 1976
  • 220 litre tank with high volume of hot water: can deliver 360 L of 40°C shower temperature water at a cold water temperature of 20°C (302 litre tank delivers 510 litres)
  • Suitable for hard or soft water areas with maintenance free current impressed anode
Installation flexibility
  • Can be installed outdoors or indoors, indoor installation requires 13m3 of clear space
  • Single piece design for ease of installation
  • Active defrost function to assist operations in cold climates
  • Operates in cold climates down to minus 5°C
Energy efficient
  • Energy efficient operation saves up to 74% on hot water energy use*
  • Low power draw at only 2.3 Amps
  • Can operate on extended off peak power and timers where availalble


Up to to $1,000 in Hot Water Rebates may be claimed*.

You can claim your Small-scale Technology Certificate (STCs) by downloading the following form.
This form is from the Greenbank Environmental site is is a separate business to 1st Choice Hot Water. 1st Choice Hot Water has no affiliation nor interests in Greenbank Environmental. There are also many other sites that trade in STCs.

Your system will create the following number of STCs:

  • Zone 1 -16STC Zones for Hot Water
  • Zone 2 – 17
  • Zone 3 – 19
  • Zone 4 – 21
  • Zone 5 – 21

*As per Clean Energy Regulator methodology for the determination of small-scale technology certificates for solar water heaters and heat pumps.

**Please note: The number of STCs within each zone are subject to AS/NZS standards or methodology change and were accurate as at 3rd January 2024.  To confirm current STC numbers on the Stiebel Eltron heat pump range please visit the Australian Government Office of Clean Energy Regulator website. STCs are subject to meeting eligibility and conditions.

Additional information

Weight 135 kg
Dimensions 69.0 × 69.0 × 1921-193.7 cm
Size by Litres

Coefficient Of Performance (COP)

Energy Source

Manufacturers Warranty

ECV Setting

TPR Setting


STC Zone 1

STC Zone 2

STC Zone 3

STC Zone 4

STC Zone 5

Element Size

Type of System

Height (mm)

Weight -kg

Width (mm)

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