RANGE OF AVAILABLE REPLACEMENT SYSTEMS
STIEBEL ELTRON HEAT PUMP HOT WATER
Stiebel Eltron WWK 302H 302L Heat Pump Hot Water System
The Stiebel Eltron WWK 302H is a 302L heat pump hot water system designed for households wanting a larger stored hot water capacity with additional recovery support. The H-model combines Stiebel Eltron heat pump technology with a 1.7 kW smart element that can assist during periods of higher hot water demand.
Installed Today offers the WWK 302H as a supply-only hot water system, with complete supply and installation options available across eligible Brisbane and Gold Coast service areas.
With active defrost, solar PV compatibility, a maintenance-free impressed current anode and a 302L cylinder, the WWK 302H is designed for homes wanting efficient electric hot water with more stored capacity and recovery support than smaller models in the range.
Stiebel Eltron WWK 302H at a glance: this is a 302L heat pump storage hot water system with a 1.7 kW smart element, active defrost, solar PV compatibility and a maintenance-free impressed current anode. It is particularly relevant to larger or higher-use households where the installation location has suitable airflow, drainage, electrical provision, access and structural support.
WHAT IT DOES
What Does the Stiebel Eltron WWK 302H Do?
The WWK 302H uses heat pump technology to extract heat from the surrounding air and transfer that energy into water stored inside its 302L cylinder. This reduces reliance on direct resistance heating as the primary method of producing hot water compared with a conventional electric storage system.
The H-model also includes a 1.7 kW smart element. When a high volume of hot water has been drawn, the element can assist the heat pump by heating approximately the top 80 litres of stored water to support recovery during heavier usage.
WHO IT SUITS
Who Is the Stiebel Eltron WWK 302H Best For?
Larger Households
The 302L cylinder provides more stored capacity than the smaller WWK 222H and may suit family homes or properties with higher hot water demand, depending on actual usage patterns and shower flow rates.
Electric Hot Water Upgrades
It may suit homes replacing a conventional electric storage system where there is enough space, airflow, drainage and electrical provision for a heat pump installation.
Extra Recovery Support
The H-model is particularly relevant where the household wants heat pump efficiency together with a 1.7 kW smart element that can assist recovery during higher hot water use.
WHO IT HELPS
What Problems Can the WWK 302H Help Solve?
Higher Hot Water Demand
The 302L cylinder provides greater stored capacity than the 220L WWK 222H, making it relevant where a smaller heat pump may not provide the desired storage volume.
Electric Storage Energy Use
The system uses ambient air as its main heat source rather than relying solely on a conventional resistance element to heat the full cylinder.
Heat Pump Recovery
The integrated smart element can assist the heat pump after significant hot water draw-off, providing additional recovery support when required.
PRODUCT AT A GLANCE
Stiebel Eltron WWK 302H Key Details
302LCylinder Capacity
1.7 kWSmart Element
3.58Seasonal COP
-5°C to +42°COperating Range
PRODUCT SUITABILITY
Is the Stiebel Eltron WWK 302H Right for My Home?
A Good Choice If...
You want a 302L heat pump, have relatively high hot water demand, want the H-model smart element, or are upgrading from an electric storage system and have a suitable heat pump installation location.
Consider Another Option If...
Your household needs substantially less stored water, the installation location cannot provide the required airflow or clearances, noise placement is problematic, or the site cannot practically accommodate the unit's size and filled weight.
Check Before Ordering
Confirm access, base support, drainage, condensate management, water pressure, electrical provision, airflow, clearances and the condition of the existing valves and pipework.
SIZE & APPLICATION
What Size Home Does the Stiebel Eltron WWK 302H Suit?
Is the WWK 302H Suitable for High Hot Water Use?
The WWK 302H combines a 302L cylinder with the H-model smart element and may suit larger households or homes with higher hot water usage. Actual suitability depends on the number and length of showers, shower flow rates, bath use, household routines, ambient conditions and expected recovery.
How Much 40°C Hot Water Can It Deliver?
The listed maximum available nominal hot water volume at 40°C is up to 540 litres when based on a 20°C cold water temperature under the specified conditions.
What Happens If a Heat Pump Is Undersized?
An undersized system can result in stored hot water being depleted faster than the system can recover during periods of heavy demand. Correct sizing should consider actual household use rather than tank capacity alone.
HOW IT WORKS
How Does the Stiebel Eltron WWK 302H Work?
1. Ambient Air
The heat pump draws energy from the surrounding air through its refrigeration circuit.
2. Heat Transfer
Captured heat is transferred into the water stored inside the enamelled steel cylinder.
3. Stored Hot Water
The heated water remains stored for household use, with the smart element available to provide additional recovery support when required.
KEY FEATURES
Key Features of the Stiebel Eltron WWK 302H
302L Storage Capacity
The larger cylinder provides more stored hot water capacity than the WWK 222H and is intended for applications where greater storage is required.
1.7 kW Smart Element
The H-model element can assist recovery after high hot water consumption by heating approximately the upper 80 litres of the cylinder.
Active Defrost
Active defrost assists operation when frost develops at the evaporator and supports operation at ambient temperatures down to -5°C.
Impressed Current Anode
A maintenance-free impressed current anode provides corrosion protection without the routine sacrificial-anode replacement associated with some storage cylinders.
Solar PV Compatibility
The system can be integrated with suitable solar PV arrangements where correctly configured, allowing hot water operation to make use of available solar generation.
Encased Compressor
The compressor is encased to help manage operating noise. Listed sound pressure is 45 dB(A) at 1 metre.
TECHNICAL DETAILS
Stiebel Eltron WWK 302H Specifications
| Specification | Details |
|---|---|
| Brand | Stiebel Eltron |
| Model | WWK 302H |
| Article Number | 233211 |
| Product Type | Heat pump storage hot water system |
| Rated Cylinder Capacity | 302L |
| Smart Element | Yes – 1.7 kW |
| Heat Pump Power Consumption | 0.55 kW at EN16147 / A15 |
| Rated Voltage | 240 V |
| Rated Current | 10 A |
| Connection | 1/N/PE |
| Seasonal COP | 3.58 |
| Maximum Available Nominal Hot Water at 40°C | 540L |
| Maximum Permissible Operating Pressure | 850 kPa |
| Operating Temperature Range | -5°C to +42°C |
| Air Flow Rate | 550 m³/h |
| Refrigerant | R134a |
| Refrigerant Capacity | 0.85 kg |
| IP Rating | IP24 |
| Cylinder Material | Enamelled steel |
| 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 | 13 m³ |
| Outdoor Clearance | 500 mm either side of the grille |
| Installation | Indoor or outdoor where installation requirements are satisfied |
| Approvals | WaterMark Lic. No. WMKA00301, AS3498 |
| Warranty | Current Stiebel Eltron warranty terms apply |
INSTALLATION REQUIREMENTS
What Is Required to Install the Stiebel Eltron WWK 302H?
The WWK 302H must be installed in a suitable location with adequate airflow, drainage, structural support, water pressure control and electrical provision. Installation requirements should be confirmed before ordering an installed package.
- Suitable level and structurally adequate base
- Access suitable for a 690 mm diameter unit
- Suitable hot and cold water connections
- Correct water pressure and valve arrangement
- Condensate drainage
- Safety valve discharge drainage
- Suitable electrical supply
- Required airflow and clearances
- Minimum 13 m³ indoor space where installed indoors
- 500 mm clearance either side of grille for applicable outdoor installation
- Suitable service access
- Installation in accordance with applicable Australian standards and local requirements
INDOOR & OUTDOOR INSTALLATION
Can the WWK 302H Be Installed Indoors or Outdoors?
Yes. The WWK 302H can be installed indoors or outdoors where the site meets the applicable installation requirements.
Indoor Installation
Stiebel Eltron lists a minimum indoor room volume of 13 m³ so cold discharge air from the refrigeration system can diffuse appropriately. Drainage, airflow and service access must also be considered.
Outdoor Installation
Outdoor installations require suitable airflow and drainage, together with the required clearances. The listed requirement is 500 mm either side of the grille. The complete installation instructions should be followed when selecting the final position.
WATER PRESSURE & DRAINAGE
Water Pressure, Valves and Condensate Requirements
The WWK 302H has a listed maximum permissible operating pressure of 850 kPa. Incoming water pressure and the existing valve arrangement should be checked before installation, and a pressure limiting valve may be required depending on site conditions and installation requirements.
Heat pumps also produce condensate during normal operation. The installation position must allow suitable condensate drainage as well as the required hot water safety-valve discharge drainage.
REPLACEMENT & UPGRADES
Can the WWK 302H Replace My Existing Hot Water System?
The WWK 302H may be suitable for replacing an older electric storage hot water system where the site can accommodate the heat pump's dimensions, airflow, drainage, electrical requirements and filled weight.
A replacement is not automatically like-for-like simply because the existing tank has a similar capacity. Heat pumps have additional airflow and condensate requirements, so the installation position and existing services need to be assessed.
Relocating the System
Moving the new heat pump away from the existing hot water position may require additional pipework, electrical work, drainage, base preparation and labour.
WHAT'S INCLUDED
What's Included With the Stiebel Eltron WWK 302H?
Supply Only
Choose supply only if you already have appropriately licensed trades arranged. The product price covers the WWK 302H unit and manufacturer-supplied components associated with the unit. Installation labour and site-specific materials are separate.
Supplied & Installed
Where available, select an Installed Today installation option for the unit plus the applicable standard installation package. Installation suitability remains subject to the actual site conditions.
Possible Additional Work
Valve replacement, old-system removal, disposal, electrical changes, new circuits or outlets, pipework modifications, drainage, condensate management, pressure control, relocation, base work and non-standard access may cost extra.
SUPPLY OR INSTALL
Choose How You Want to Order the WWK 302H
Supply Only
Choose the WWK 302H supply only when you already have suitable licensed trades arranged and only need the hot water system supplied.
Brisbane Installation
Supply and installation options are available in eligible Brisbane service areas, subject to access, installation requirements and service availability.
Gold Coast Installation
Supply and installation options are available in eligible Gold Coast service areas, subject to site suitability and installation availability.
SUPPLY OPTIONS
Buy the Stiebel Eltron WWK 302H From Installed Today
Installed Today offers supply-only ordering for customers who already have their own licensed installer arranged. Delivery availability and freight requirements depend on the destination and order.
Brisbane and Gold Coast customers can also check eligible supplied-and-installed options.
Brisbane
Gold Coast
Supply Only
Licensed Installer Required
BRISBANE INSTALLATION
Stiebel Eltron WWK 302H Supply & Installation Brisbane
Brisbane customers can order the WWK 302H with an eligible supply and installation package. This model may suit homes replacing older electric storage hot water where a larger-capacity heat pump and additional smart-element recovery are wanted.
Before installation, the site should be checked for unit access, base support, airflow, drainage, water pressure, electrical supply, existing valves and compliance requirements. Additional work outside the selected standard installation scope may incur extra charges.
GOLD COAST INSTALLATION
Stiebel Eltron WWK 302H Supply & Installation Gold Coast
Eligible Gold Coast customers can select the WWK 302H as a supplied and installed heat pump package. Its 302L storage volume and H-model smart element make it relevant to family homes and properties with relatively high hot water demand where the installation site is suitable.
Gold Coast installations still need adequate airflow, condensate drainage, structural support, electrical provision and suitable water pressure. Restricted access, relocation and upgrades to existing plumbing or electrical services can change the installation scope.
PERFORMANCE & OWNERSHIP
How Efficient Is the Stiebel Eltron WWK 302H?
The WWK 302H has a listed seasonal COP of 3.58. COP compares useful heat output with electrical input under specified test conditions. A COP above 1 reflects the heat pump's ability to move ambient heat rather than creating all of its heat through direct resistance heating.
Actual household energy use varies with ambient temperature, water inlet temperature, hot water demand, operating settings, smart-element use, installation conditions, tariff structure and solar PV availability.
Can the WWK 302H Use Solar PV?
Yes. The WWK 302H supports solar PV integration where the electrical and control arrangement is configured appropriately. This can allow hot water heating to be aligned with available solar production.
Can It Run on Off-Peak Power?
The system can operate with off-peak arrangements where available and where the electrical installation and household hot water requirements make the selected operating schedule suitable.
COMPARE YOUR OPTIONS
WWK 302H vs WWK 302 vs WWK 222H
| Feature | WWK 302H | WWK 302 | WWK 222H |
|---|---|---|---|
| Cylinder Capacity | 302L | 302L | 220L |
| H-Model Smart Element | Yes – 1.7 kW | No | Yes |
| Maximum Nominal 40°C Hot Water | Up to 540L under stated conditions | 302L model; check applicable model data | Up to 360L under stated conditions |
| Application Difference | Larger storage plus smart-element recovery support | Larger 302L storage without the H-model smart element | Smaller storage with H-model recovery support |
WWK 302H vs WWK 302
The main distinction is the WWK 302H's 1.7 kW smart element. Customers wanting the 302L capacity together with additional recovery support may consider the H-model, while the WWK 302 is the corresponding standard model without that H-model feature.
WWK 302H vs WWK 222H
The WWK 222H has a smaller 220L cylinder, while the WWK 302H provides 302L of storage. Which capacity suits a home depends on actual hot water demand and recovery expectations.
REBATES & INCENTIVES
Is the Stiebel Eltron WWK 302H Eligible for STCs or Rebates?
Heat pump hot water systems may qualify for STCs or other incentive programs depending on the eligible product, installation date, location and current scheme rules.
Eligibility and incentive values can change and should be confirmed for the specific installation before purchase. A rebate or incentive should not be treated as guaranteed unless it has been confirmed for the order and installation.
COMMON QUESTIONS
Questions About the Stiebel Eltron WWK 302H
Can I buy the Stiebel Eltron WWK 302H supply only?
Yes. Supply-only ordering is suitable when you already have appropriately licensed trades arranged for installation.
Can Installed Today install the WWK 302H?
Supply and installation options are available across eligible Brisbane and Gold Coast service areas, subject to site suitability and installation availability.
Is installation included in the unit price?
No. The unit price is for the product unless an installed option is selected. Installation labour and site-specific extras are separate unless expressly included in the selected package.
What is the WWK 302H article number?
The listed article number is 233211.
How big is the WWK 302H?
The unit is listed at approximately 1921–1937 mm high with adjustable feet and 690 mm in diameter.
How much does the WWK 302H weigh?
Its listed empty weight is 135 kg, with an approximate filled weight of 437 kg.
What is the sound level?
The listed sound pressure level is 45 dB(A) at 1 metre. Actual perceived noise depends on placement and surrounding reflective surfaces.
Does the WWK 302H have active defrost?
Yes. Active defrost supports heat pump operation in colder ambient conditions and contributes to its listed operating range down to -5°C.
Does it have a backup or smart element?
Yes. The WWK 302H is the H-model and includes a 1.7 kW smart element designed to assist hot water recovery during higher usage.
Can the WWK 302H be installed outside?
Yes, where the outdoor position satisfies the required airflow, clearances, drainage, access and other installation requirements.
Can the WWK 302H be installed indoors?
Yes, where the indoor installation satisfies the required room volume, airflow, drainage and access conditions. The listed minimum indoor space is 13 m³.
What refrigerant does it use?
The listed refrigerant is R134a, with a refrigerant capacity of 0.85 kg.
What is the maximum operating water pressure?
The listed maximum permissible operating pressure is 850 kPa. Incoming pressure and the required valve arrangement still need to be checked during installation.
Is the WWK 302H suitable for hard water?
The WWK range is described as suitable for hard or soft water areas and uses a maintenance-free impressed current anode. Water quality and correct installation still affect long-term system performance.
Can the WWK 302H work with solar PV?
Yes. Solar PV integration is supported where the system is configured correctly with a suitable electrical and control arrangement.
Can it run on off-peak electricity?
Yes, where an appropriate off-peak supply or operating arrangement is available and suitable for the household's hot water requirements.
Does it need condensate drainage?
Yes. Condensate is produced during normal heat pump operation, so the installation needs a suitable drainage arrangement.
Is electrical work included with installation?
Electrical work is not automatically included unless it forms part of the selected installation package. Circuit, outlet or other electrical changes may require additional work.
What is the difference between the WWK 302 and WWK 302H?
The WWK 302H includes the 1.7 kW smart element for additional recovery support. The standard WWK 302 is the non-H version.
What is the difference between the WWK 222H and WWK 302H?
The WWK 222H has a 220L cylinder while the WWK 302H has a 302L cylinder. The larger model provides more stored capacity, while both H-models incorporate additional recovery support.
WARRANTY & MAINTENANCE
Stiebel Eltron WWK 302H Warranty and Maintenance
Current Stiebel Eltron warranty terms apply to the WWK 302H. Warranty coverage, exclusions and individual component periods should be checked against the current manufacturer warranty documentation applicable at the time of purchase.
The system uses a maintenance-free impressed current anode, removing the routine sacrificial-anode replacement associated with some conventional storage systems. This does not mean the entire hot water system is maintenance-free. Valves, drainage, system operation and other installation components should still be maintained in accordance with manufacturer instructions and applicable requirements.
WHY INSTALLED TODAY
Why Buy the Stiebel Eltron WWK 302H From Installed Today?
Installed Today gives customers a straightforward choice between purchasing the WWK 302H as a supply-only unit or selecting an eligible installation package in Brisbane or the Gold Coast.
Supply OnlyFor Customers With Their Own Installer
Online OptionsClear Product and Installation Pathways
BrisbaneEligible Installation Areas
Gold CoastEligible Installation Areas
FINAL CHECK
Is the Stiebel Eltron WWK 302H Right for You?
The Stiebel Eltron WWK 302H is primarily suited to customers wanting a larger 302L heat pump hot water system with the additional recovery support of a 1.7 kW smart element. Its key features include active defrost, solar PV compatibility, a maintenance-free impressed current anode and indoor or outdoor installation capability where the required conditions are satisfied.
Before ordering, confirm that the property can accommodate the unit's dimensions, approximately 437 kg filled weight, airflow, drainage, water pressure and electrical requirements. Choose supply only if your licensed installer is already arranged, or select an eligible Brisbane or Gold Coast supply and installation option where available.
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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
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