Stiebel Eltron SHP-O 300 Plus 300L Heat Pump Hot Water System

The Stiebel Eltron SHP-O 300 Plus 300L 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.

The Stiebel Eltron SHP-O 300 Plus is a premium 300L heat pump hot water system designed for larger domestic hot water demand using ambient air heat. With R290 refrigerant, app control through the MyStiebel App, solar PV compatibility, a 10A power connection requirement and a 4.21 COP rating under EN16147 / A20 testing, it is a strong option for households wanting a larger modern heat pump alternative to a standard electric storage hot water system.

About the Stiebel Eltron SHP-O 300 Plus 300L

The Stiebel Eltron SHP-O 300 Plus uses heat pump technology to draw heat from the surrounding air and transfer it into stored hot water. This can reduce reliance on direct electric element heating compared with a standard electric storage system, while still using an integrated auxiliary heater when required.

The 300L capacity is suited to larger households, families, higher hot water usage homes and properties wanting more stored hot water capacity than the 200L model, depending on shower flow rates, tariff setup, climate, recovery requirements and installation conditions.

This model uses R290 refrigerant, includes Wi-Fi app control through the MyStiebel App and can integrate with solar PV systems using SG Ready functionality to help optimise self-generated electricity use where suitable.

Buy Stiebel Eltron SHP-O 300 Plus 300L Supply Only

Buy the Stiebel Eltron SHP-O 300 Plus 300L 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:

• Stiebel Eltron SHP-O 300 Plus price

• Stiebel Eltron SHP-O 300L heat pump

• Stiebel Eltron 204473 heat pump

• 300L heat pump hot water system

• Stiebel Eltron heat pump hot water

• R290 heat pump hot water system

• Solar PV compatible heat pump

• Stiebel Eltron SHP-O 300 supply only

Stiebel Eltron SHP-O 300 Plus Supplied and Installed in Brisbane & Gold Coast

The Stiebel Eltron SHP-O 300 Plus 300L 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

• Dedicated circuit or power point 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 SHP-O 300 Plus Installation in Brisbane

Installed Today can help Brisbane customers order the Stiebel Eltron SHP-O 300 Plus 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 solar PV compatibility and app-based control.

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 SHP-O 300 Plus Installation in Gold Coast

Gold Coast homeowners, landlords, renovators and property managers can order the Stiebel Eltron SHP-O 300 Plus for supply only or supply and install where available.

This system may suit coastal homes, larger family homes, investment properties and households with higher hot water demand. 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 SHP-O 300 Plus Right for Your Home?

This system may suit you if:

• You want a 300L 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 200L heat pump

• You want a heat pump with R290 refrigerant

• You want Wi-Fi control through the MyStiebel App

• You want a solar PV compatible hot water system

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

• You have a suitable 10A electrical connection 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 may be better suited to a different system type due to site conditions or usage patterns

Key Features of the Stiebel Eltron SHP-O 300 Plus

• 300L heat pump hot water system

• Article number: 204473

• Uses ambient air heat for efficient hot water production

• R290 refrigerant with low GWP

• COP of 4.21 under EN16147 / A20 testing

• A+ energy efficiency class

• Maximum DHW temperature of 65°C using heat pump operation

• MyStiebel App control and monitoring

• Solar PV compatible with SG Ready functionality

• Timer functionality via app

• Hygiene program

• Smart auxiliary element

• 1.5 kW auxiliary heater

• 10A connection requirement

• 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 47 dB(A) at 2 m

• Empty weight of 117 kg

• Filled weight of approximately 422 kg

• 1903 mm high x 650 mm diameter

• PTR valve setting of 850 kPa

• Stiebel Eltron-listed warranty terms apply

Quick Specs

Brand: Stiebel Eltron
Range: SHP-O Plus
Product: SHP-O 300 Plus 300L Heat Pump Hot Water System
Article Number: 204473
System Type: Heat pump storage hot water
Tank Volume: 300L
Recommended Household Size: Larger households, depending on usage
Installation Type: Indoor or outdoor where suitable
Energy Efficiency Class: A+
COP: 4.21 under EN16147 / A20 testing
Refrigerant: R290
Refrigerant Mass: 152 g
GWP: 0.02
Maximum DHW Temperature with Heat Pump: 65°C
Application Limits: -6°C to +43°C, with element support if heating is required at low ambient temperatures
Ideal Climate Zone: 1–4, most regions
Power Supply: 1/N/PE 220–240 V 50 Hz
Connection Requirement: 10A connection
Average Heat Pump Power Consumption: 0.44 kW
Auxiliary Heater Power Consumption: 1.5 kW
Maximum Operating Current: 9.88 A
Hot Water Outlet: G 1
PTR Valve: 850 kPa
Sound Pressure Level at 2 m: 47 dB(A)
Height x Diameter: 1903 mm x 650 mm
Empty Weight: 117 kg
Filled Weight: Approximately 422 kg
Minimum Indoor Space Requirement: 13m³
Outdoor Clearance Requirement: 500 mm either side of grille
App Control: MyStiebel App
Solar PV Compatibility: SG Ready
Warranty: Current Stiebel Eltron warranty terms apply

Heat Pump Storage Hot Water

The Stiebel Eltron SHP-O 300 Plus stores hot water in a 300L cylinder and uses heat pump technology to heat the water efficiently.

Unlike a standard electric storage hot water system that relies mainly on direct electric element heating, a heat pump uses surrounding air as the main heat source. This can make it a strong option for customers wanting a larger electric hot water upgrade, especially where the site is suitable and the unit is installed correctly.

Efficient Heat Pump Hot Water

The SHP-O 300 Plus has a listed COP of 4.21 under EN16147 / A20 testing. COP is a laboratory efficiency measure that compares heat output to electrical input under set test conditions.

Real-world performance depends on ambient temperature, hot water usage, installation location, airflow, settings, tariff setup and whether the auxiliary heater is used.

R290 Refrigerant

The Stiebel Eltron SHP-O 300 Plus uses R290 refrigerant, also known as propane. R290 is a natural refrigerant with low global warming potential.

Because R290 is flammable, refrigeration-related work must be carried out by appropriately qualified contractors. Normal plumbing and electrical installation requirements still apply.

Built-In Wi-Fi Control

The SHP-O 300 Plus can be connected to the MyStiebel App, allowing the customer to monitor and control hot water settings from a smartphone or tablet.

The app can support features such as temperature adjustment, timer functions, hot water boost and system monitoring, depending on setup and connectivity.

Solar PV Compatibility

The Stiebel Eltron SHP-O 300 Plus is solar PV compatible using SG Ready functionality. This can help the unit operate in a way that better uses self-generated solar electricity where the home has a suitable solar PV system and the installation is configured correctly.

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

Off-Peak Operation Option

The timer functionality available through the app can help customers manage when the system operates.

This may be useful for homes trying to align hot water heating with solar production, daytime operation or suitable electricity tariff windows. Actual running costs depend on energy rates, settings, usage and household conditions.

Multiple Operating Modes

The SHP-O 300 Plus includes controls for boost, pairing and emergency operation. Status LEDs make operation easier to monitor at the unit.

The smart control setup gives customers practical options for everyday use while still keeping the system simple to operate.

Electric Boost Element

The unit includes a 1.5 kW auxiliary heater. This can support hot water recovery when needed, such as during higher demand or cooler operating conditions.

The auxiliary heater should not be treated as the main efficiency feature. The heat pump is designed to use ambient air heat as the primary heat source where conditions allow.

Plug or Hardwired Electrical Requirement

The Stiebel Eltron SHP-O 300 Plus requires a 1/N/PE 220–240 V 50 Hz power supply and only a 10A connection is required according to Stiebel Eltron’s product information.

Electrical work, power point changes, circuit changes or compliance upgrades are not included unless selected or arranged separately.

Auto Hygiene Function

The SHP-O 300 Plus includes an automatic hygiene function to help maintain water quality.

This is a useful feature for stored hot water systems, especially where the system is being managed through programmed operation or lower-energy running patterns.

Quiet Operation

The Stiebel Eltron SHP-O 300 Plus has a listed sound pressure level of 47 dB(A) at 2 m. It is designed for quiet operation, with no compressor noise in the airflow and optimised recirculation air mode.

Noise impact still depends on the installation location, surrounding walls, nearby windows, fences, acoustic reflections and local site conditions.

Indoor or Outdoor Installation

The SHP-O 300 Plus can be installed indoors or outdoors where suitable. Indoor installation requires appropriate room volume and ventilation, while outdoor installation requires correct clearances around the grille and suitable weather, drainage and service access conditions.

Stiebel Eltron lists a minimum indoor space requirement of 13m³ and an outdoor clearance requirement of 500 mm either side of the grille. The installation guide should be checked before ordering or installation.

Water Pressure and PLV Requirements

Water pressure must be checked before installation. The SHP-O 300 Plus has a listed PTR valve setting of 850 kPa, and a pressure limiting valve may be required depending on the property’s incoming water pressure, the selected valve kit and the 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 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.

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.

Clearance Requirements

Correct airflow is critical for heat pump performance. The SHP-O 300 Plus 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 non-compliant or unsuitable.

Stiebel Eltron SHP-O 200 Plus vs SHP-O 300 Plus

The Stiebel Eltron SHP-O 200 Plus is the smaller 200L model, while the SHP-O 300 Plus is the larger 300L model.

The 200L model may suit smaller to medium households with moderate hot water usage. The 300L model may be better for larger households, higher usage, multiple bathrooms or homes wanting more stored hot water capacity.

The right size depends on the number of people in the home, shower habits, fixture flow rates, tariff setup, recovery requirements, available space and whether the home wants to maximise heat pump operation during solar production windows.

Stiebel Eltron SHP-O Plus vs SHP-O Premium

The SHP-O 300 Plus is part of the SHP-O Plus range and is suited to many standard Australian climate zones.

The SHP-O Premium range includes active defrost and is designed for broader climate suitability, including very cold climates. For Brisbane and Gold Coast homes, the SHP-O 300 Plus may suit many properties, but installation location, airflow, local conditions and operating requirements should still be checked before purchase.

Stiebel Eltron SHP-O vs Standard Electric Storage

A standard electric storage system uses an electric element to heat water directly. The Stiebel Eltron SHP-O 300 Plus uses heat pump technology to draw heat from the surrounding air, with an auxiliary element available when required.

The SHP-O 300 Plus may be a better option for customers wanting a larger, more efficient electric hot water upgrade with app control and solar PV compatibility. 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

• 300L hot water system replacement

• Larger households

• Family homes

• Homes with solar PV

• Higher hot water usage properties

• 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 SHP-O 300 Plus 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 SHP-O 300 Plus supply only?

Yes. You can buy the Stiebel Eltron SHP-O 300 Plus as a supply-only unit if you already have a licensed plumber and electrician arranged.

Can I get the Stiebel Eltron SHP-O 300 Plus 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 SHP-O 300 Plus 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.

What size is the Stiebel Eltron SHP-O 300 Plus?

The Stiebel Eltron SHP-O 300 Plus has a nominal capacity of 300L.

What is the article number?

The listed article number is 204473.

What refrigerant does it use?

The Stiebel Eltron SHP-O 300 Plus uses R290 refrigerant with a listed refrigerant mass of 152 g.

What is the COP?

The listed COP is 4.21 under EN16147 / A20 testing.

What is the energy efficiency class?

The listed energy efficiency class is A+.

What is the maximum hot water temperature?

The listed maximum DHW temperature with heat pump operation is 65°C.

Does it have Wi-Fi?

Yes. The SHP-O 300 Plus can be connected to the MyStiebel App for app-based control and monitoring.

Can it work with solar PV?

Yes. The SHP-O 300 Plus is SG Ready and compatible with solar PV systems where configured correctly.

Does it need a 10A connection?

Yes. Stiebel Eltron lists that only a 10A connection is required.

Is electrical work included?

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

Can it be installed outside?

Yes. The SHP-O 300 Plus 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 and diameter are 1903 mm x 650 mm.

What does it weigh?

The listed empty weight is 117 kg. Filled weight is approximately 422 kg.

What is the sound level?

The listed sound pressure level is 47 dB(A) at 2 m.

What is the PTR valve setting?

The listed PTR valve setting is 850 kPa.

Does it have an electric boost element?

Yes. The SHP-O 300 Plus includes a 1.5 kW auxiliary heater.

Does it have active defrost?

No. The SHP-O 300 Plus does not include active defrost. The SHP-O Premium range includes active defrost.

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 SHP-O 200 Plus and SHP-O 300 Plus?

The SHP-O 200 Plus has a 200L capacity, while the SHP-O 300 Plus has a 300L capacity. The 300L model may be better for 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’s current datasheet lists 7 year parts cylinder with 5 year labour, 5 year sealed refrigeration circuit with 5 year labour, and 2 year other components with 2 year labour. Warranty coverage is subject to current terms and conditions.

* 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

Installation availability, inclusions and add-ons vary by product type, site access, existing services, selected options and your property requirements. Some installations may require additional work, upgrades or checks before the job can proceed.

Fast & Reliable Delivery – What to Expect

Same Day Delivery: Available in Brisbane and Gold Coast on select units ordered before 8:00am
Express Delivery: 1–4 business days
Standard Delivery: 2–8 business days

Same Day Delivery

Same day delivery is available for selected hot water systems in Brisbane and Gold Coast metro areas when ordered before 8:00am, subject to stock availability, delivery capacity and suitable transport conditions.

Fast Metro Delivery

Most hot water orders in metro areas are delivered quickly, with around 90% arriving within 1 business day.

Weather Delays

Hot water systems cannot always be transported safely by courier during rain. Delivery timeframes may be affected when wet weather impacts safe handling, loading, unloading or transport conditions.

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If your express delivery order takes longer than 1–4 business days, we will adjust the delivery timeframe to our standard 2–8 business days and refund your express shipping charge automatically.

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