Stiebel Eltron WWK 302 302L Heat Pump Hot Water System

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

Choose the supply-only option if you already have a licensed plumber and electrician arranged, or review available installation package options before checkout to confirm site suitability, airflow clearances, drainage, water pressure, electrical requirements, valve kit requirements and installation access conditions.

This page is for the standard Stiebel Eltron WWK 302 model, not the WWK 302H. The WWK 302 is a larger-capacity 302L heat pump hot water system designed to generate domestic hot water using surrounding air as the primary heat source. It includes active defrost, solar PV compatibility, a quiet encased compressor and a maintenance-free impressed current anode.

About the Stiebel Eltron WWK 302 302L

The Stiebel Eltron WWK 302 uses heat pump technology to capture heat from ambient air and transfer that energy into stored hot water.

Compared with a conventional electric storage hot water system, a heat pump system may help reduce electricity consumption depending on climate conditions, installation quality, household demand and operating configuration.

With a larger 302L storage capacity, the WWK 302 may suit:

• larger households

• family homes

• properties with higher hot water usage

• homes upgrading from older electric storage systems

• households wanting more stored hot water capacity than a 220L system

Suitability depends on usage patterns, shower flow rates, installation conditions, tariff setup, climate and overall household demand.

The WWK 302 is the standard non-H version of the range. Unlike the WWK 302H, this model does not include the 1.7 kW smart element recovery assist feature.

Buy Stiebel Eltron WWK 302 Supply Only

You can order the Stiebel Eltron WWK 302 supply only from Hot Water Outlet if you already have a licensed plumber and electrician arranged for installation.

The listed product price is for the unit only unless an installation package is selected separately.

Installation, electrical work, pipework changes, valve kits, pressure limiting valves, condensate drainage, tray requirements, old system removal, disposal, compliance upgrades and base preparation are not included unless separately quoted or selected as part of an available installation package.

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Stiebel Eltron WWK 302 Supplied and Installed

The Stiebel Eltron WWK 302 may be available with supply and installation packages in selected Brisbane, Gold Coast, Sydney and Melbourne service areas.

Installed-from pricing is based on a standard installation setup together with the selected product. Final pricing can vary depending on access, electrical requirements, drainage requirements, existing plumbing configuration and site conditions.

Additional costs may apply for:

• Valve kit replacement

• Old hot water system removal

• Disposal

• Electrical upgrades

• Circuit changes

• Pipework alterations

• Condensate drainage

• Base or tray requirements

• Pressure limiting valves

• Difficult access

• Indoor ventilation requirements

• Outdoor clearance issues

• Relocation of the hot water system

• Non-compliant existing installations

Site suitability should be checked before installation.

Stiebel Eltron WWK 302 Installation in Brisbane

Hot Water Outlet can assist Brisbane customers wanting the Stiebel Eltron WWK 302 as either a supply-only heat pump hot water system or a supplied and installed package where available.

This larger-capacity heat pump may suit Brisbane homes replacing older electric storage systems where the household wants:

• larger stored hot water capacity

• active defrost operation

• quieter compressor operation

• solar PV compatibility

• energy-efficient hot water technology

Installation suitability depends on airflow, drainage, electrical supply, water pressure, base support, 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 through Hot Water Outlet for supply only or supply and installation where available.

The WWK 302 may suit:

• coastal homes

• larger family households

• townhouses with suitable installation space

• investment properties

• homes wanting larger-capacity heat pump hot water storage

Final installation suitability depends on the existing installation location, airflow, drainage, access, electrical setup, pressure requirements and whether additional labour or components are required.

Stiebel Eltron WWK 302 Installation in Sydney

Selected Sydney customers can order the Stiebel Eltron WWK 302 through Hot Water Outlet as a supply-only unit or with installation options where available.

This model may suit Sydney households looking for:

• a larger-capacity heat pump

• an electric storage replacement

• solar PV compatibility

• lower running cost potential compared with conventional electric storage systems

Installation conditions should be assessed before installation, particularly for apartment access, ventilation, airflow clearances and drainage requirements.

Stiebel Eltron WWK 302 Installation in Melbourne

Melbourne customers can order the Stiebel Eltron WWK 302 from Hot Water Outlet as either a supply-only heat pump or a supplied and installed package in selected metro areas.

With active defrost operation and a listed operating range down to -5°C, the WWK 302 may suit Melbourne homes wanting a heat pump designed for varying climate conditions.

Before installation, clearance requirements, drainage, electrical supply, ventilation and access conditions should be checked.

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

• Your household has higher hot water usage

• You are replacing an electric storage hot water system

• You want more stored hot water capacity than a WWK 222

• You want the standard WWK 302 model rather than the WWK 302H

• You want active defrost functionality

• You want solar PV compatibility

• You want a heat pump suitable for hard or soft water areas

• You have suitable airflow and installation space

• You have suitable electrical provision or can arrange electrical upgrades

• You want supply-only or supply and installation options

Additional work may be required if:

• The system is being relocated

• Existing valves are non-compliant

• Electrical upgrades are required

• Drainage changes are needed

• Pressure limiting valves are required

• Indoor ventilation is insufficient

• Outdoor clearances are restricted

• Access is difficult

• The existing system requires removal and disposal

• Your household requires the WWK 302H smart element model

• The installation area does not suit the larger dimensions or filled weight

Key Features of the Stiebel Eltron WWK 302

• 302L heat pump hot water system

• Article number 231211

• Standard non-H WWK 302 model

• Heat pump-only operation without smart element

• Designed for Australian conditions

• Made in Europe

• Uses ambient air heat for hot water production

• Suitable for hard or soft water areas

• Maintenance-free impressed current anode

• Active defrost functionality

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

• Solar PV compatible

• Suitable for off-peak power where available

• Heat pump power consumption of 0.55 kW

• Seasonal COP of 3.58

• Up to 540L of 40°C shower temperature water

• Indoor or outdoor installation where suitable

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

• WaterMark approved

Quick Specifications

Heat Pump Hot Water Technology

The Stiebel Eltron WWK 302 uses heat pump technology to generate domestic hot water using energy captured from surrounding air.

Instead of relying primarily on direct electric heating, the heat pump transfers ambient heat into stored water inside the cylinder.

Actual performance depends on:

• ambient temperatures

• installation conditions

• airflow

• usage patterns

• household demand

• tariff configuration

• operating settings

Standard WWK 302 vs WWK 302H

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

The WWK 302H includes a 1.7 kW smart element designed to assist recovery during higher periods of hot water demand.

The standard WWK 302 does not include this smart element feature.

Households wanting stronger recovery assistance during heavy usage may prefer the WWK 302H.

Customers specifically wanting the standard non-H model may prefer the WWK 302.

Efficient Heat Pump Performance

The WWK 302 has a listed seasonal COP of 3.58.

COP measures heat output relative to electrical input under controlled testing conditions.

Real-world efficiency depends on installation conditions, climate, household demand, airflow and system configuration.

Active Defrost Operation

The WWK 302 includes active defrost functionality to assist operation during colder conditions.

When frost develops on the evaporator, the defrost cycle helps clear frost build-up so the system can continue operating normally.

This supports operation down to a listed ambient temperature of -5°C.

Solar PV Compatibility

The Stiebel Eltron WWK 302 may be connected with compatible solar PV systems where configured correctly.

Depending on the inverter setup and electrical configuration, solar integration may help households use more self-generated solar electricity for hot water production.

Solar compatibility should be checked before installation.

Indoor and Outdoor Installation

The WWK 302 may be installed indoors or outdoors where suitable.

Indoor installation requires sufficient space and ventilation for proper airflow.

Outdoor installation requires:

• suitable drainage

• weather exposure suitability

• airflow clearances

• access

• base support

Stiebel Eltron lists a minimum 500 mm clearance requirement either side of the grille for outdoor installations.

Water Pressure and Drainage Requirements

The current datasheet lists:

• maximum permissible pressure of 500 kPa

• PTR valve setting of 850 kPa

Water pressure should be checked before installation. Pressure limiting valves may be required depending on existing plumbing conditions.

Heat pump systems also produce condensate during normal operation, requiring suitable drainage arrangements.

Additional drainage or plumbing work may apply depending on installation conditions.

STCs and Rebates

Heat pump hot water systems may be eligible for STCs or government incentive programs depending on:

• installation location

• installation date

• current program rules

• installer eligibility requirements

Eligibility and rebate values can change and should be confirmed before purchase.

Rebates should not be treated as guaranteed unless confirmed as part of the installation process.

WWK 222 vs WWK 302

The WWK 222 uses a 220L storage cylinder, while the WWK 302 uses a larger 302L cylinder.

The WWK 302 may suit:

• larger households

• higher hot water demand

• homes wanting increased stored capacity

The WWK 222 may suit smaller to medium households with lower hot water demand.

WWK 302 vs Standard Electric Storage Hot Water

Traditional electric storage systems rely on direct electric elements to heat stored water.

The WWK 302 instead uses heat pump technology as the primary heating method.

This may suit homeowners wanting:

• lower electricity consumption potential

• solar PV compatibility

• larger hot water storage capacity

• a premium European-made heat pump

Standard electric storage systems may still suit properties where:

• space is limited

• airflow is unsuitable

• drainage is difficult

• electrical upgrades are not practical

Common Uses

Common applications for the Stiebel Eltron WWK 302 include:

• 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

• Off-peak tariff households

• Investment properties

• Renovation projects

• Energy-efficient hot water upgrades

• Supply-only orders with an existing licensed installer

• Supply and installation projects in selected metro areas

Suitability depends on household demand, site conditions, airflow, drainage, plumbing condition, electrical supply and installation compliance requirements.

Why Order From Hot Water Outlet?

Hot Water Outlet makes it easier to compare and order the Stiebel Eltron WWK 302 as either a supply-only unit or a supplied and installed heat pump hot water system where available.

Customers can choose supply only if they already have licensed installers arranged, or request assistance arranging installation quotations in selected metro areas.

Benefits of ordering through Hot Water Outlet may include:

• Supply-only or supply and installation options

• Brisbane, Gold Coast, Sydney and Melbourne service coverage

• Installed-from pricing shown separately from product pricing

• Product comparison information

• Optional installation add-ons where suitable

• Metro delivery availability

• Clear separation between product and installation costs

• Assistance arranging licensed installation services

Frequently Asked Questions

Can I buy the Stiebel Eltron WWK 302 supply only?

Yes. The WWK 302 can be ordered supply only if you already have a licensed plumber and electrician arranged.

Is installation included in the product price?

No. Installation is not included unless separately quoted or selected as part of an available installation package.

Is this the WWK 302H?

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

Does the WWK 302 include a smart element?

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

Can the WWK 302 be installed in Brisbane?

Supply and installation may be available in selected Brisbane service areas subject to availability and site suitability.

Can the WWK 302 be installed in Gold Coast?

Yes. Selected Gold Coast installation areas may be available depending on scheduling and installation conditions.

Can the WWK 302 be installed in Sydney?

Supply and installation may be available in selected Sydney metro areas where suitable installation services are available.

Can the WWK 302 be installed in Melbourne?

Yes. Selected Melbourne service areas may be available subject to installer availability and installation suitability.

What size is the WWK 302?

The WWK 302 has a rated storage capacity of 302L.

What refrigerant does the WWK 302 use?

The WWK 302 uses R134a refrigerant with a listed refrigerant charge of 0.85 kg.

What is the COP?

The listed seasonal COP is 3.58.

What outdoor clearance is required?

Stiebel Eltron lists a 500 mm clearance requirement either side of the grille for outdoor installations.

Can the WWK 302 work with solar PV?

Yes. The WWK 302 may be configured with compatible solar PV systems depending on the installation setup.

Can it operate on off-peak power?

Yes. The system may operate on off-peak tariffs where available and where configured appropriately.

Is it suitable for hard water areas?

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

Is the WWK 302 eligible for rebates?

The system may be eligible for STCs or other government incentives depending on installation eligibility and current program rules.

Eligibility should be checked before purchase.

* Requested element size may come delivered separately to system for electric systems - All units supplied with factory with 3.6kW

**Where a unit supplied is capable of supplying more than 50°C, a tempering valve must be installed on the property or purchased as part of a valve kit with your order.

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Important Note

Product suitability can vary by property, existing services, energy source, gas type, available space, connection points, pressure requirements and local compliance requirements. Always check product specifications carefully and confirm the selected hot water system, valves, fittings and accessories are suitable for your property before ordering.

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Express Delivery: 1–4 business days

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Delivery timeframes are estimates and may vary by product, stock location, delivery postcode, carrier availability and order timing. Wet weather, storms, flooding or unsafe site access may delay delivery and are additional to any advertised or guaranteed freight timeframes.