Stiebel Eltron WWK 302 302L Heat Pump Hot Water System

The Stiebel Eltron WWK 302 302L Heat Pump Hot Water System is available from Installed Today as a supply-only heat pump hot water unit or as a complete supply and install package in selected Brisbane and Gold Coast service areas, where available.

Choose the unit only if you already have a licensed plumber and electrician arranged, or check your supply and install package before checkout to confirm installation suitability, access, airflow clearances, drainage, water pressure, electrical requirements, valve kit requirements and available installation timeframes.

This page is for the WWK 302 standard model, not the WWK 302H. The WWK 302 is a 302L heat pump hot water system designed for efficient domestic hot water using surrounding air. It features active defrost, quiet encased compressor operation, a maintenance-free impressed current anode, solar PV compatibility and indoor or outdoor installation flexibility where suitable.

About the Stiebel Eltron WWK 302 302L

The Stiebel Eltron WWK 302 uses heat pump technology to draw heat from the surrounding air and transfer it into stored hot water. This makes it a strong upgrade option for customers wanting a more energy-efficient alternative to a standard electric storage hot water system.

The 302L capacity may suit larger households, higher hot water usage homes, family properties and homes wanting more stored hot water capacity than the WWK 222, depending on shower flow rates, recovery expectations, tariff setup, climate and installation conditions.

The WWK 302 is the non-H model, which means it does not include the 1.7 kW smart element found in the WWK 302H. It is designed to generate hot water through heat pump operation and includes active defrost to support operation in cooler conditions.

Buy Stiebel Eltron WWK 302 Supply Only

Buy the Stiebel Eltron WWK 302 supply only if you already have a licensed plumber and electrician arranged for installation.

The product price is for the unit only. Installation, valve kits, old system removal, disposal, electrical work, pipework changes, drainage, condensate management, base preparation, pressure control and compliance upgrades are not included unless selected separately as add-ons or part of an available install package.

Common search terms this product suits include:

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• 302L heat pump hot water system

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• Non-H Stiebel Eltron WWK 302

• Stiebel Eltron WWK 302 supply only

Stiebel Eltron WWK 302 Supplied and Installed in Brisbane & Gold Coast

The Stiebel Eltron WWK 302 302L can be ordered with a supply and install option in selected Brisbane and Gold Coast service areas, where available.

The installed-from price is based on the product plus the selected standard installation option. Final pricing can vary depending on site conditions and any selected add-ons.

Extra work or add-ons may be required for:

• Valve kit replacement

• Old system removal

• Disposal

• Electrical work

• Power point or circuit changes

• Pipework changes

• Condensate drainage

• Base or tray requirements

• Pressure limiting valve requirements

• Restricted access

• Indoor space or ventilation requirements

• Outdoor clearance requirements

• Relocation from the existing hot water position

• Non-compliant existing installation

Stiebel Eltron WWK 302 Installation in Brisbane

Installed Today can help Brisbane customers order the Stiebel Eltron WWK 302 as either a supply-only heat pump or a supplied and installed package in selected service areas.

This model may suit Brisbane homes replacing an older electric storage hot water system, especially where the household wants a larger-capacity heat pump with quiet operation, active defrost and solar PV compatibility.

Before installation, the site should be checked for space, airflow, drainage, water pressure, electrical supply, base condition, existing valves, access and compliance requirements.

Stiebel Eltron WWK 302 Installation in Gold Coast

Gold Coast homeowners, landlords, renovators and property managers can order the Stiebel Eltron WWK 302 for supply only or supply and install where available.

This system may suit coastal homes, larger family homes, townhouses, investment properties and properties looking for a 302L heat pump hot water unit. Final installation suitability depends on the existing hot water location, available space, airflow, drainage, electrical setup, water pressure and whether any additional parts or labour are required.

Is the Stiebel Eltron WWK 302 Right for Your Home?

This system may suit you if:

• You want a 302L heat pump hot water system

• You are replacing an existing electric storage hot water system

• Your household has higher hot water usage

• You want more stored capacity than a WWK 222

• You want the standard WWK 302 model, not the WWK 302H

• You want a heat pump with active defrost

• You want a system suitable for hard or soft water areas

• You want a solar PV compatible hot water system

• You have suitable airflow, drainage, access and installation space

• You have suitable electrical provision or can arrange electrical work

• You want the choice of supply only or supply and install

Extra work may be required if:

• The system is being moved to a new location

• Existing valves are old, missing or non-compliant

• Electrical upgrades are required

• Drainage or condensate management needs to be added

• A suitable base or tray is required

• Water pressure control is required

• Indoor space or ventilation is not suitable

• Outdoor clearances are restricted

• Access is difficult

• The old system needs removal or disposal

• Your household needs the H model with smart element support

• Your installation space does not suit the larger 302L unit dimensions or filled weight

Key Features of the Stiebel Eltron WWK 302

• 302L heat pump hot water system

• Article number: 231211

• Standard WWK 302 model, not WWK 302H

• Heat pump-only model without the 1.7 kW smart element

• Designed for Australian conditions

• Made in Europe

• Uses ambient air heat for efficient hot water production

• Suitable for hard or soft water areas

• Maintenance-free impressed current anode

• Active defrost function

• Operating temperature range of -5°C to +42°C

• Solar PV compatible

• Can operate on off-peak power where available

• Heat pump power consumption of 0.55 kW

• Rated voltage of 240 V

• Maximum operating current of 3.18 A

• Seasonal COP of 3.58

• 302L rated capacity

• Can deliver up to 540L of 40°C shower temperature water at 20°C cold water temperature

• Set hot water temperature of 61°C

• Maximum hot water temperature of 65°C

• Maximum permissible pressure of 500 kPa

• PTR valve setting of 850 kPa

• R134a refrigerant

• 550 m³/h air flow rate

• IP24 rating

• Indoor or outdoor installation where suitable

• Minimum indoor space requirement of 13m³

• Outdoor clearance requirement of 500 mm either side of the grille

• Sound pressure level of 45 dB(A) at 1 m

• Empty weight of 135 kg

• Filled weight of approximately 437 kg

• 1921–1937 mm adjustable height x 690 mm diameter

• WaterMark approved

Quick Specs

Brand: Stiebel Eltron
Range: WWK
Product: WWK 302 302L Heat Pump Hot Water System
Article Number: 231211
System Type: Heat pump storage hot water
Tank Volume: 302L
Recommended Household Size: Larger households, depending on usage
Installation Type: Indoor or outdoor where suitable
Model Type: Standard non-H model
Smart Element: No
Power Consumption at EN16147 / A15: 0.55 kW
Rated Voltage: 240 V
Connection: 1/N/PE
Maximum Operating Current: 3.18 A
Electrical Installation: As per AS/NZS3000
Installation Requirements: AS/NZS3500.4 and local requirements
Cylinder Material: Enamelled steel
Rated Capacity: 302L
Maximum Available Nominal Hot Water at 40°C: 540L
Set Hot Water Temperature: 61°C
Maximum Hot Water Temperature: 65°C
Maximum Permissible Pressure: 500 kPa
PTR Valve: 850 kPa
COP: 3.58 seasonal average
Operating Temperature Range: -5°C to +42°C
Air Flow Rate: 550 m³/h
IP Rating: IP24
Refrigerant: R134a
Refrigerant Capacity: 0.85 kg
Height: 1921–1937 mm with adjustable feet
Diameter: 690 mm
Empty Weight: 135 kg
Filled Weight: Approximately 437 kg
Sound Pressure Level: 45 dB(A) at 1 m
Minimum Indoor Space Requirement: 13m³
Outdoor Clearance Requirement: 500 mm either side of grille
Approvals: WaterMark Lic No. WMKA00301, AS3498
Warranty: Current Stiebel Eltron warranty terms apply

Heat Pump Storage Hot Water

The Stiebel Eltron WWK 302 stores hot water in a 302L cylinder and uses heat pump technology to heat the water efficiently.

Instead of relying on a standard electric element as the main heating method, the WWK 302 uses the energy in surrounding air to generate hot water. This makes it a strong option for homes wanting to upgrade from a conventional electric storage hot water system where the site is suitable.

Standard WWK 302, Not WWK 302H

This product page is for the WWK 302 standard model, not the WWK 302H.

The WWK 302H includes a 1.7 kW smart element to assist recovery during high hot water usage. The WWK 302 does not include that smart element, making it the correct choice where the standard non-H model is required.

Customers with higher hot water recovery needs may need to compare the WWK 302 against the WWK 302H before ordering.

Efficient Heat Pump Hot Water

The WWK 302 has a listed seasonal COP of 3.58. COP is a performance measure that compares heat output to electrical input under test conditions.

Real-world performance depends on ambient temperature, hot water usage, installation location, airflow, settings, tariff setup and household demand.

Active Defrost Function

The Stiebel Eltron WWK 302 includes active defrost to support heat pump operation in colder conditions.

When frost is detected at the evaporator, the active defrost function helps remove frost build-up so the system can return to normal hot water generation. This helps the unit operate down to -5°C without needing the H-model smart element.

Maintenance-Free Impressed Current Anode

The WWK 302 uses a maintenance-free impressed current anode, making it suitable for hard or soft water areas.

Unlike sacrificial anodes that are designed to wear away over time, an impressed current anode is designed to provide corrosion protection without regular anode replacement under normal conditions.

Enamelled Steel Cylinder

The WWK 302 uses an enamelled steel cylinder. The cylinder is designed for domestic hot water storage and works with the impressed current anode for long service life.

Water quality, pressure control, correct installation and ongoing maintenance all play a role in long-term system performance.

Solar PV Compatibility

The Stiebel Eltron WWK 302 is compatible with solar PV integration where configured correctly.

A solar PV signal can allow the unit to increase tank temperature during peak solar production, helping make better use of self-generated power where the home has a suitable solar setup.

Solar PV integration depends on the electrical setup, inverter capability, system configuration and installer requirements.

Off-Peak Operation Option

The WWK 302 can operate on off-peak power where available.

This may suit homes wanting to manage hot water running times around tariff windows, solar production or household usage patterns. Actual running costs depend on energy rates, settings, hot water demand and installation conditions.

Low Power Consumption

The WWK 302 has a listed heat pump power consumption of 0.55 kW and a maximum operating current of 3.18 A.

Electrical work must still be completed to Australian standards, and site suitability should be checked before installation.

Indoor or Outdoor Installation

The Stiebel Eltron WWK 302 can be installed indoors or outdoors where suitable.

Indoor installation requires a clear space of 13m³ so the cold air from the refrigeration system can diffuse. Outdoor installation requires 500 mm clearance either side of the grille, along with suitable drainage, access, base support and weather exposure conditions.

Quiet Encased Compressor

The WWK 302 is designed with an encased compressor to help reduce operating noise.

It has a listed sound pressure level of 45 dB(A) at 1 m. Noise impact still depends on the installation location, surrounding walls, nearby bedrooms, fences, reflective surfaces and local site conditions.

Water Pressure and PLV Requirements

The current datasheet lists a maximum permissible pressure of 500 kPa and a PTR valve setting of 850 kPa.

Water pressure must be checked before installation. A pressure limiting valve may be required depending on the property’s incoming water pressure, the selected valve kit and installation requirements.

High water pressure, missing valves or non-compliant existing pipework can affect installation scope and final cost.

Drainage and Condensate Requirements

Heat pumps produce condensate during normal operation. The installation location must allow suitable condensate drainage in addition to standard hot water system safety valve discharge requirements.

Drainage changes are not included unless selected or arranged as part of the installation package.

Clearance Requirements

Correct airflow is important for heat pump performance. The WWK 302 needs suitable installation clearance so the unit can draw and discharge air properly.

Poor airflow, tight enclosures, blocked grilles or unsuitable indoor spaces can reduce performance and may make the installation unsuitable.

STCs and Government Incentives

Heat pump hot water systems may be eligible for STCs or government incentives depending on the product, installation date, location and program rules.

Eligibility, rebate value and availability can change. Any incentive should be checked before purchase and should not be treated as guaranteed unless confirmed as part of the checkout or installation process.

WWK 302 vs WWK 302H

The WWK 302 is the standard 302L heat pump model. The WWK 302H is the 302L H-model with a 1.7 kW smart element.

The WWK 302H may be the better option where the household wants additional recovery support during higher hot water use. The standard WWK 302 may suit customers who specifically want the non-H model and do not need the smart element feature.

WWK 222 vs WWK 302

The WWK 222 has a 220L cylinder capacity and can deliver up to 360L of 40°C shower temperature water at 20°C cold water temperature.

The WWK 302 has a larger 302L cylinder capacity and can deliver up to 540L of 40°C shower temperature water at 20°C cold water temperature.

The WWK 302 may be more suitable for larger households, higher hot water demand or homes wanting more stored hot water capacity.

WWK 302 vs Standard Electric Storage

A standard electric storage system uses an electric element to heat water directly. The Stiebel Eltron WWK 302 uses heat pump technology to draw heat from the surrounding air.

The WWK 302 may be a better option for customers wanting an energy-efficient electric hot water upgrade, solar PV compatibility and a premium European-made heat pump with larger stored capacity. A standard electric storage system may still suit customers wanting a simpler lower upfront cost replacement where heat pump space, airflow, noise, drainage or electrical requirements are not suitable.

Common Uses

• Electric storage hot water replacement

• Heat pump hot water upgrades

• 302L hot water system replacement

• Larger households

• Family homes

• Higher hot water usage properties

• Homes with solar PV

• Homes using off-peak power where available

• Townhouses with suitable space

• Rental properties

• Investment properties

• Renovation projects

• Energy-efficient hot water upgrades

• Supply-only orders where a licensed installer is already arranged

• Supply and install orders in selected Brisbane and Gold Coast areas

Suitability depends on household size, hot water usage, tariff setup, installation location, airflow, drainage, plumbing condition, electrical supply, water pressure and compliance requirements.

Why Order From Installed Today?

Installed Today makes it easier to order the Stiebel Eltron WWK 302 as either a supply-only product or a supplied and installed package where available.

You can choose the unit only if you already have a licensed plumber and electrician arranged, or select an installation option in eligible Brisbane and Gold Coast service areas. Valve kits and installation add-ons can be selected online where required, helping you build a clearer product and installation pathway before checkout.

Benefits of ordering from Installed Today include:

• Supply-only or supply and install options

• Brisbane and Gold Coast service area support

• Installed-from pricing shown separately from the product price

• Compatibility checks before installation

• Product-specific information to help compare models

• Optional add-ons available where suitable

• Clear separation between unit price, installation and extras

• Suitable for customers with their own licensed installer

Frequently Asked Questions

Can I buy the Stiebel Eltron WWK 302 supply only?

Yes. You can buy the Stiebel Eltron WWK 302 as a supply-only unit if you already have a licensed plumber and electrician arranged.

Can I get the Stiebel Eltron WWK 302 installed in Brisbane?

Yes, supply and install may be available in selected Brisbane service areas, depending on location, access, site conditions and installation availability.

Can I get the Stiebel Eltron WWK 302 installed in Gold Coast?

Yes, supply and install may be available in selected Gold Coast service areas, subject to service coverage, site suitability and installation availability.

Is installation included in the product price?

No. The product price is for the unit only unless you select an installed option. Installation, valve kits, disposal, old system removal, electrical work, pipework changes, drainage and other extras are not included unless selected separately.

Is this the WWK 302H?

No. This page is for the standard Stiebel Eltron WWK 302, not the WWK 302H.

Does the WWK 302 have a smart element?

No. The standard WWK 302 does not include the 1.7 kW smart element. The smart element is included in the WWK 302H model.

What size is the Stiebel Eltron WWK 302?

The Stiebel Eltron WWK 302 has a rated capacity of 302L.

What is the article number?

The listed article number for the standard WWK 302 is 231211.

What refrigerant does it use?

The Stiebel Eltron WWK 302 uses R134a refrigerant with a listed refrigerant capacity of 0.85 kg.

What is the COP?

The listed seasonal COP is 3.58.

What is the maximum permissible pressure?

The current datasheet lists the maximum permissible pressure as 500 kPa.

What is the PTR valve setting?

The listed PTR valve setting is 850 kPa.

Can it be installed outside?

Yes. The WWK 302 can be installed outdoors where suitable clearances, drainage, access and installation requirements are met.

Can it be installed indoors?

Yes. Indoor installation may be possible where the minimum space, ventilation, drainage and installation requirements are met. Stiebel Eltron lists a minimum indoor space requirement of 13m³.

What outdoor clearance is required?

Stiebel Eltron lists an outdoor clearance requirement of 500 mm either side of the grille. The installation guide should be checked for full requirements.

What are the dimensions?

The listed height is 1921–1937 mm with adjustable feet, and the listed diameter is 690 mm.

What does it weigh?

The listed empty weight is 135 kg. Filled weight is approximately 437 kg.

What is the sound level?

The listed sound pressure level is 45 dB(A) at 1 m.

Does it have active defrost?

Yes. The WWK 302 includes active defrost to assist operation in cold climates.

Does it work with solar PV?

Yes. The WWK 302 can be connected with solar PV systems where configured correctly.

Can it run on off-peak power?

Yes, it can operate on off-peak power where available and where the installation is suitable.

Is electrical work included?

No. Electrical work is not included unless selected or arranged separately.

Is it suitable for hard water areas?

Stiebel Eltron states the WWK range is suitable for hard or soft water areas with a maintenance-free impressed current anode.

Is it suitable for replacing an old electric hot water system?

Yes, it may be suitable for replacing an old electric storage hot water system, provided the site has suitable space, airflow, drainage, electrical supply, water pressure and installation access.

What is the difference between the WWK 302 and WWK 302H?

The WWK 302 is the standard 302L heat pump model. The WWK 302H adds a 1.7 kW smart element to assist hot water recovery during higher usage.

What is the difference between the WWK 222 and WWK 302?

The WWK 222 has a 220L cylinder, while the WWK 302 has a 302L cylinder. The WWK 302 may suit larger households or higher hot water demand.

Is it eligible for rebates?

It may be eligible for STCs or other incentives depending on the product, installation, location and current program rules. Eligibility should be checked before purchase and should not be treated as guaranteed.

What warranty does it have?

Stiebel Eltron warranty terms can vary by product and documentation version. Current warranty details should be checked before purchase.

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DELIVERY TIMES WITH INSTALLATION - HOT WATER SYSTEMS EXC. HEAT PUMPS

Greater Brisbane and Gold Coast (EXCLUDING BAY ISLANDS) - up to 2 business days

Toowoomba, Tweed Heads and Sunshine Coast - up to 3 business days

DELIVERY TIMES WITHOUT INSTALLATION - HOT WATER SYSTEMS EXC. HEAT PUMPS

Greater Brisbane and Gold Coast (EXCLUDING BAY ISLANDS) - up to 3 business days

Toowoomba, Tweed Heads and Sunshine Coast - up to 5 business days

Harvey Bay, Cairns and Townsville - up to 5 business days

Metropolitan Cities - up to 5 Business Days

Listed Metropolitan Centers - up to 10 Business Days

DELIVERY TIMES WITH INSTALLATION - HEAT PUMPS

Greater Brisbane and Gold Coast (EXCLUDING BAY ISLANDS) - up to 2 business days

Toowoomba, Tweed Heads and Sunshine Coast - up to 5 business days

DELIVERY TIMES WITHOUT INSTALLATION - HEAT PUMPS

Greater Brisbane and Gold Coast (EXCLUDING BAY ISLANDS) - up to 5 business days

Toowoomba, Tweed Heads and Sunshine Coast - up to 5 business days

Metropolitan Cities - up to 5 Business Days

Listed Metropolitan Centers - up to 10 Business Days

DELIVERY TIMES WITH/WITHOUT INSTALLATION - PUMPS AND WATER FILTERS

Greater Brisbane and Gold Coast - up to 5 business days

Toowoomba, Tweed Heads and Sunshine Coast - up to 5 business days

Harvey Bay, Cairns and Townsville - up to 10 business days

**PLEASE NOTE ORDERS OUTSIDE OF THESE AREAS WILL BE REFUNDED AS SOON AS POSSIBLE**

SERVICED METROPOLITIAN CENTRES & CITIES

-Brisbane (EXCLUDING BAY ISLANDS)

-Gold Coast

-Sunshine Coast

-Toowoomba

-Coffs Harbour

-Tamworth

-Canberra

-Sydney (EXCLUDING ISLANDS)

-Bathurst

-Melbourne

-Ballarat

-Geelong

-Adelaide

-Perth

-Darwin

-Cairns

-Townsville

-Harvey Bay

-Rockhampton

-Bundaberg

-Tweed Heads

-Wollongong