Stiebel Eltron WWK 302H 302L Heat Pump Hot Water System

The Stiebel Eltron WWK 302H 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.

The Stiebel Eltron WWK 302H is the larger H-model version in the WWK heat pump hot water range. It combines a larger 302L storage cylinder with a built-in 1.7 kW smart element designed to assist hot water recovery during heavier household usage.

With active defrost, solar PV compatibility, quiet compressor operation and a maintenance-free impressed current anode, the WWK 302H may suit larger households wanting a premium heat pump hot water system with additional recovery support.

About the Stiebel Eltron WWK 302H 302L

The Stiebel Eltron WWK 302H uses heat pump technology to capture heat from surrounding 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, operating configuration and household hot water demand.

The larger 302L capacity may suit:

• larger households

• family homes

• homes with higher hot water usage

• properties upgrading from older electric storage systems

• households wanting more stored hot water capacity than a WWK 222H

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

The key feature of the WWK 302H is the built-in 1.7 kW smart element designed to assist recovery during higher periods of hot water usage.

Buy Stiebel Eltron WWK 302H Supply Only

You can order the Stiebel Eltron WWK 302H 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.

Common search terms related to this model include:

• Stiebel Eltron WWK 302H price

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• 302L heat pump hot water system

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• Solar PV compatible heat pump

• Stiebel Eltron WWK 302H supply only

• Stiebel Eltron WWK 302H installed Brisbane

• Stiebel Eltron WWK 302H installed Gold Coast

• Stiebel Eltron WWK 302H installed Sydney

• Stiebel Eltron WWK 302H installed Melbourne

Stiebel Eltron WWK 302H Supplied and Installed

The Stiebel Eltron WWK 302H 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 installation pricing can vary depending on access, electrical requirements, drainage requirements, existing plumbing conditions and overall site suitability.

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

Installation suitability should be checked before installation.

Stiebel Eltron WWK 302H Installation in Brisbane

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

This model may suit Brisbane homes replacing older electric storage systems where the household wants:

• larger hot water storage capacity

• additional recovery support

• solar PV compatibility

• active defrost operation

• quieter compressor performance

Before installation, airflow, drainage, electrical supply, water pressure, access, base support and compliance requirements should be checked.

Stiebel Eltron WWK 302H Installation in Gold Coast

Gold Coast homeowners, landlords, renovators and property managers can order the Stiebel Eltron WWK 302H through Hot Water Outlet for supply only or supply and installation where available.

The WWK 302H may suit:

• larger family homes

• coastal homes

• investment properties

• homes with higher hot water demand

• properties wanting larger-capacity heat pump storage with smart element recovery support

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

Stiebel Eltron WWK 302H Installation in Sydney

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

This larger-capacity H-model heat pump may suit Sydney households wanting:

• increased hot water storage

• stronger recovery support

• solar PV compatibility

• energy-efficient hot water technology

• a premium electric storage replacement

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

Stiebel Eltron WWK 302H Installation in Melbourne

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

With active defrost functionality and operation down to colder ambient temperatures, the WWK 302H may suit Melbourne homes wanting a larger-capacity heat pump hot water system designed for varying climate conditions.

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

Is the Stiebel Eltron WWK 302H 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 222H

• You want the H-model with a 1.7 kW smart element

• You want stronger recovery support than the standard WWK 302

• 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

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

• Your household may be better suited to a different capacity or system type

Key Features of the Stiebel Eltron WWK 302H

• 302L heat pump hot water system

• Article number 233211

• H-model with 1.7 kW smart element

• Smart element assists recovery during higher hot water usage

• 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 302H uses heat pump technology to generate domestic hot water using heat captured from surrounding air.

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

Actual performance depends on:

• ambient temperature

• installation quality

• airflow

• operating settings

• household demand

• tariff configuration

• usage patterns

H-Model Smart Element Recovery Support

The WWK 302H includes a built-in 1.7 kW smart element positioned near the upper section of the cylinder.

During heavier periods of hot water demand, the smart element can assist the heat pump by heating approximately the upper portion of stored water.

This recovery support is the key difference between the WWK 302H and the standard WWK 302.

Households wanting stronger recovery assistance may prefer the H-model.

Efficient Heat Pump Performance

The WWK 302H 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, airflow, usage patterns and household demand.

Active Defrost Operation

The WWK 302H includes active defrost functionality to assist operation during colder weather 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 302H may be connected with compatible solar PV systems where configured correctly.

Depending on 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 302H may be installed indoors or outdoors where suitable.

Indoor installations require sufficient ventilation and airflow.

Outdoor installations require:

• suitable drainage

• weather exposure suitability

• airflow clearances

• access

• base support

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

Water Pressure and Drainage Requirements

The WWK 302H has a listed maximum permissible operating pressure of 850 kPa.

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

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

Additional plumbing or drainage work may apply depending on the installation setup.

STCs and Rebates

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

• installation location

• installer eligibility

• installation date

• current program rules

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

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

WWK 302 vs WWK 302H

The WWK 302 is the standard non-H model, while the WWK 302H includes a 1.7 kW smart element designed to assist hot water recovery.

The WWK 302H may suit households wanting:

• stronger recovery support

• larger stored capacity

• higher-demand performance

The standard WWK 302 may still suit households not requiring smart element recovery assistance.

WWK 222H vs WWK 302H

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

The WWK 302H may suit:

• larger households

• homes with higher hot water demand

• families wanting increased stored capacity

Both models include the H-model smart element recovery support feature.

WWK 302H vs Standard Electric Storage Hot Water

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

The WWK 302H instead uses heat pump technology as the primary heat source together with a 1.7 kW smart element for recovery support.

This may suit homeowners wanting:

• lower electricity consumption potential

• solar PV compatibility

• stronger recovery performance

• larger-capacity hot water storage

Standard electric storage systems may still suit properties where:

• airflow is limited

• space is restricted

• drainage is difficult

• electrical upgrades are impractical

Common Uses

Common applications for the Stiebel Eltron WWK 302H 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 needing additional recovery support

• Homes with solar PV

• Off-peak tariff households

• Investment properties

• Renovation projects

• Energy-efficient hot water upgrades

• Supply-only orders with existing licensed installers

• Supply and installation projects in selected metro areas

Suitability depends on household demand, 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 302H 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 service 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 302H supply only?

Yes. The WWK 302H 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 model?

Yes. This page is for the Stiebel Eltron WWK 302H H-model with the 1.7 kW smart element.

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

The WWK 302 is the standard non-H model. The WWK 302H includes a 1.7 kW smart element designed to assist recovery during higher hot water usage.

Can the WWK 302H be installed in Brisbane?

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

Can the WWK 302H be installed in Gold Coast?

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

Can the WWK 302H be installed in Sydney?

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

Can the WWK 302H be installed in Melbourne?

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

What size is the WWK 302H?

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

Does the WWK 302H include a smart element?

Yes. The WWK 302H includes a built-in 1.7 kW smart element for additional recovery support.

What refrigerant does the WWK 302H use?

The WWK 302H 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 302H work with solar PV?

Yes. The WWK 302H may be configured with compatible solar PV systems depending on 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 302H 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.

Tempering Valve and Element Information

*Element size information:
All electric hot water units are supplied as standard with a 3.6kW element unless otherwise stated on the product page, invoice, or order confirmation.

If a different element configuration is requested, such as 1.8kW or 2.4kW, the hot water unit may still arrive with the standard 3.6kW element fitted from the manufacturer. The requested 1.8kW or 2.4kW element will be supplied separately with the order for installation by a suitably licensed electrical contractor or licensed electrical licence holder.

Any element changeover, electrical connection, disconnection, wiring, testing, or modification must be carried out by a licensed electrical contractor or licensed electrical licence holder. Elements must not be changed, connected, modified, or tested by an unlicensed person.

Alternative elements supplied for non-standard configurations may be generic replacement elements and may not be the same brand as the hot water unit unless specifically stated. Generic elements are supplied to suit the requested element size and electrical configuration, but final suitability must be checked by the licensed installer before installation.

1.8kW and 2.4kW elements supplied separately with a hot water unit include a 12-month supply-only parts warranty from the date of purchase, provided the element has been correctly installed by a licensed electrical contractor or licensed electrical licence holder and used under normal operating conditions.

This element warranty covers the replacement supply of the element only. It does not include labour, call-out fees, electrical work, plumbing work, fault finding, removal, reinstallation, testing, travel, downtime, damage caused by incorrect installation, or any other associated costs. Warranty may be declined where the element has been incorrectly installed, dry-fired, modified, damaged, connected to incorrect voltage or wiring, affected by power issues, used in unsuitable water conditions, or installed by an unlicensed person.

Proof of purchase, installer details, electrical licence details, photos, and/or return of the faulty element may be required before a warranty claim is approved.

**Tempering valve information:
Where a hot water system is capable of delivering water above 50°C, a compliant tempering valve must be installed to control the temperature delivered to personal hygiene fixtures such as showers, baths, basins, and bathroom outlets. This helps reduce the risk of scalding and assists with meeting plumbing compliance requirements.

A tempering valve blends hot and cold water to deliver a safer controlled outlet temperature to required fixtures. The hot water unit itself may store water at a higher temperature, but the water delivered to personal hygiene outlets must be controlled where required by plumbing regulations.

If your property already has a suitable, compliant tempering valve installed, your licensed plumber can assess whether it is appropriate for use with the new hot water system. Existing valves may not always be suitable due to age, condition, compliance requirements, valve type, location, or system compatibility.

If a compliant tempering valve is not already installed, or if the existing valve is unsuitable, one must be supplied and installed by a licensed plumber as part of the hot water installation.

Tempering valves are not automatically included with every supply-only hot water unit unless specifically selected, listed as included, or purchased as part of a suitable valve kit. If a tempering valve is required, please purchase the appropriate valve kit with your order or arrange for your licensed installer to supply and install the correct tempering valve on site.

It is the customer’s responsibility to ensure the installation is completed by appropriately licensed trades and that all required valves, fittings, electrical work, plumbing work, and compliance requirements are allowed for as part of the installation.

Buying a new hot water system or hot water part should be simple. Hot Water Outlet helps you compare hot water systems, valves, thermostats, elements, pipework and fittings in one place, so you can choose the products that suit your home, budget and hot water needs without the back and forth.

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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.

Standard Delivery: 2–8 business days

Express Delivery: 1–4 business days

90% of products are delivered the next business day where stock, postcode eligibility and freight availability allow.

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.