Stiebel Eltron SNU 5 Instant Hot Water | Supply+Install | LIFETIME WARRANTY -

Award Winning

2023–2025 ProductReview.com.au Winners

Product Protection

Lifetime Warranty Eligible

Live Availability

Same Day Installation Available 365 Days

Trusted Locally

1000+ 5-Star Google Installation Reviews

Stiebel Eltron SNU 5 Instant Hot Water | Supply+Install | LIFETIME WARRANTY

Hot water, hassle-free. This Stiebel eltron is built for families who value reliability, efficiency, and peace of mind. With expert installation and unbeatable service, you’re in the best hands!

Quick Specs & Benefits View product specifications and key details

Volume: 5L
Recommended Household Size: people
Width: 240 mm
Height: 423 mm
Internal Cylinder Material:
Maximum Warranty: 5 Years
LED/LCD Status Indicator:
Made In: Europe

Recommended

Silver Package

2 of 5

From ...

GET A QUOTE

Send us a few photos and we'll confirm this package suits your installation before you book.

Already Have A Compliant Setup?

Base installation may suit an exact like-for-like under-sink replacement where the existing unit, tapware, plumbing and power setup are already compliant and no alterations are required.

From...

Select Your Preferred Install

Choose an exact installation date, or stay flexible and save.

🏷️ Brand – Stiebel eltron
🔢 Model Number –
📦 Volume – 5L
📏 Width – 240mm
📐 Height – 423mm
🌍 Manufactured In – Europe
🛠️ Cylinder / Heat Exchange Material –
🛡️ Cylinder / Heat-Exchange Warranty – 5 Years
🔇 Noise Level – dBa
⚖️ Dry Weight – kg
⚡ Energy Source –
📡 WiFi Controller Built-in or Compatible –
⏲️ Built-In Timer –
💡 LED/LCD Status Indicator –
📊 Coefficient of Performance (COP) –

OPEN-VENTED UNDER-SINK HOT WATER

Stiebel Eltron SNU 5 Plus Installation Brisbane & Gold Coast

JR Gas & Water supplies and installs the Stiebel Eltron SNU 5 Plus open-vented under-sink storage water heater across eligible Brisbane, Gold Coast and surrounding South East Queensland service areas.

The SNU 5 Plus is a compact 5 litre non-pressurised point-of-use water heater designed specifically for one isolated kitchen sink. It stores hot water directly beneath the sink and must be installed with compatible Stiebel Eltron open-vented tapware.

Its small physical footprint, 2.2kW heating output and anti-drip technology make it a specialised option for kitchens, office kitchenettes and other single-sink applications where relatively small quantities of local hot water are required.

Stiebel Eltron SNU 5 Plus at a glance: current article 204977 is a 5L open-vented storage water heater designed for one isolated kitchen sink. It provides approximately 10L of mixed water at 40°C, uses 2.2kW / 9.1A at 240V, has very low standby consumption of approximately 0.19kWh per 24 hours at 65°C and measures only 423 × 240 × 212mm. Specialised Stiebel Eltron open-vented tapware is mandatory.

PRODUCT AT A GLANCE

Stiebel Eltron SNU 5 Plus Compact Storage Hot Water

5L Storage

A compact 5 litre stored hot water supply designed for a single local sink.

10L Mixed Water

Stiebel Eltron's current Australian datasheet lists approximately 10 litres of mixed water at 40°C.

Single Outlet

Designed for one isolated draw-off point rather than multiple fixtures.

Open Vented

A non-pressurised system that must use compatible Stiebel Eltron open-vented sink tapware.

WHO IT SUITS

Where Does the SNU 5 Plus Work Best?

The SNU 5 Plus is designed for small-scale local hot water at one kitchen sink. It is most useful where only modest quantities of hot water are needed and a larger mains-pressure or whole-property system would be unnecessary for that fixture.

Kitchen Sink

A strong application where one sink needs its own local stored hot water supply and compatible open-vented tapware can be installed.

Office Kitchenette

Suitable for staff kitchens and tea rooms where hot water demand is limited to one sink.

Remote Sink

Useful where a sink sits a long distance from the main water heater and waiting for hot water through a long pipe run is undesirable.

Not suitable as a normal bathroom-basin solution where a tempering valve or TMV is required. Stiebel Eltron's current Australian SNU Plus datasheet specifically states that the open-vented system is not suitable for such basin installations.

OPEN-VENTED OPERATION

What Does Open Vented Mean?

The SNU 5 Plus is a non-pressurised storage water heater. The specialised sink mixer controls the cold water entering the tank, while the hot-water side remains open through the tap spout so pressure cannot build inside the storage cylinder.

No Mains Pressure in the Tank

The internal storage vessel is not designed to operate as a conventional sealed mains-pressure hot water cylinder.

The Tap Is Part of the Heater System

The open-vented tap is not merely a style choice. It forms an essential part of the appliance's hydraulic operation.

The Outlet Must Remain Unrestricted

The tap outlet must not be blocked or modified in a way that could pressurise the water heater.

Important: the SNU 5 Plus cannot simply be connected to a normal mains-pressure kitchen mixer. If standard pressure tapware needs to remain, compare a mains-pressure SHC system instead.

ANTI-DRIP TECHNOLOGY

What Is the SNU 5 Plus Anti-Drip Function?

The anti-drip function is specific to the 5 litre SNU Plus model and is one of its key advantages for a kitchen-sink installation.

Reduces Expansion Dripping

Stiebel Eltron states that the anti-drip function reduces expansion water dripping from the tap during the heat-up cycle.

Helps Reduce Limescale

Reducing repeated expansion-water dripping can also help reduce limescale deposits around the tap and sink.

SNU 5 Specific Feature

The manufacturer specifically identifies anti-drip functionality on the 5 litre under-sink appliance rather than the SNU 10 Plus.

Anti-drip does not turn the appliance into a pressurised system. The SNU 5 Plus remains an open-vented water heater and still requires the correct specialised tapware.

HOW IT WORKS

How Does the Stiebel Eltron SNU 5 Plus Work?

The SNU stores a small quantity of heated water beneath the sink. When the hot side of the open-vented tap is used, fresh cold water enters the storage tank and hot water is displaced through the tap outlet.

5L Is Stored Hot

The polypropylene storage cylinder keeps a small reserve of hot water available beside the fixture.

The Tap Controls Incoming Water

The specialised mixer controls water entering the non-pressurised tank rather than placing mains pressure directly on the vessel.

The Element Reheats

The 2.2kW electric heating system reheats the stored volume according to the selected thermostat setting.

VERIFIED FEATURES

Key Features of the Stiebel Eltron SNU 5 Plus

5 litre compact storage tank for frequent small-scale sink demand.

Approximately 10L mixed water at 40°C under the manufacturer's current published data.

2.2kW rated output at 240V for relatively fast reheating of the small storage volume.

Anti-drip function designed to reduce expansion-water dripping during heat-up.

Thermostop technology designed to reduce unnecessary heat transfer toward the tap during standby.

Low standby consumption of approximately 0.19kWh per 24 hours at 65°C under manufacturer test conditions.

Rotary temperature control for straightforward operation.

Automatic frost protection when the appliance remains connected to electricity.

Operating indicator showing when the small storage heater is heating.

Compact mounting rail designed to simplify wall mounting and replacement.

Plug-in electrical connection with cable storage at the rear of the appliance.

Made in Germany according to Stiebel Eltron's current Australian product information.

TECHNICAL DETAILS

Stiebel Eltron SNU 5 Plus Specifications

Brand	Stiebel Eltron
Model	SNU 5 Plus
Current Article Number	204977
System Type	Open-vented / non-pressurised compact electric storage water heater
Installation	Under sink
Number of Outlets	One draw-off point
Nominal Capacity	5 litres
Mixed Water Volume at 40°C	Approximately 10 litres
Temperature Setting Range	Approximately 30–85°C in the current Australian SNU Plus datasheet
Rated Output at 240V	2.2kW
Rated Current at 240V	9.1A
Electrical Connection	1/N/PE single phase, plug-in appliance
Fuse / Circuit Protection	10A
Water Connection	G 3/8 A
Maximum Flow Rate	Approximately 5L/min according to Stiebel Eltron's operating documentation
Maximum Appliance Permissible Pressure	0 — open-vented / non-pressurised appliance
Maximum Tapware Permissible Pressure	500kPa
Standby Consumption	Approximately 0.19kWh / 24 hours at 65°C
Height	423mm
Width	240mm
Depth	212mm
Weight	Approximately 2.9kg
IP Rating	IP24D
Tank Material	Plastic / polypropylene
Colour	White
Operation	Rotary temperature selector
Manufacturer Domestic Warranty	5 years full parts and labour, subject to Stiebel Eltron's current Australian warranty conditions

Current product identification: Stiebel Eltron's May 2025 Australian SNU Plus datasheet identifies the current SNU 5 Plus as article 204977. Older operation manuals can show earlier article numbers, so current Australian sales data should be used when matching the supplied product.

CAPACITY

How Much Hot Water Does the SNU 5 Plus Provide?

The physical storage tank contains only 5 litres, but the stored hot water is mixed with cold water at the tap before use.

5L Stored

The internal storage vessel holds 5 litres of heated water.

10L Mixed at 40°C

Stiebel Eltron's current Australian data lists approximately 10 litres of mixed water at 40°C.

Designed for Small Draws

The available volume suits repeated small kitchen tasks better than high-volume or prolonged hot water demand.

Think cups, washing and sink tasks — not showers and baths. The SNU 5 Plus is intentionally a small point-of-use appliance.

SNU 5 VS SNU 10

Stiebel Eltron SNU 5 Plus vs SNU 10 Plus

Specification	SNU 5 Plus	SNU 10 Plus
Current Article Number	204977	204982
Storage Capacity	5L	10L
Mixed Water at 40°C	10L	19L
Rated Output	2.2kW	2.2kW
Rated Current at 240V	9.1A	9.1A
Standby Consumption at 65°C	0.19kWh / 24h	0.31kWh / 24h
Anti-Drip Function	Yes	Not listed as the SNU 10 Plus feature
Dimensions	423 × 240 × 212mm	506 × 290 × 282mm
Number of Outlets	One	One
Best Direction	Very compact installation and lighter sink demand.	Higher local sink demand where more storage capacity is useful.

The SNU 10 does not have a more powerful heating element. Both current models use 2.2kW at 240V. The primary advantage of the SNU 10 is its larger stored-water volume, while the SNU 5 is smaller and includes the anti-drip feature.

SNU VS SHC

SNU 5 Plus vs Mains-Pressure SHC

If you are deciding between an SNU and an SHC under-sink system, the most important difference is not tank size — it is the plumbing design.

SNU 5 Plus

Open vented, non-pressurised, one sink only and requires specialised Stiebel Eltron open-vented tapware.

SHC Range

Mains-pressure compact storage that can use compatible pressure tapware and can supply one or more nearby draw-off points.

Which Should You Choose?

If you already have an open-vented SNU setup, a like-for-like SNU replacement may make sense. If you need standard pressure tapware or multiple outlets, compare the SHC range instead.

TAPWARE REQUIREMENT

Which Tap Is Required With the SNU 5 Plus?

The SNU 5 Plus must be paired with a Stiebel Eltron-compatible open-vented sink mixer. Standard mains-pressure tapware is not interchangeable with this system.

Open-Vented Mixer

The mixer regulates the water entering the non-pressurised storage tank and allows the vessel to remain vented through the outlet.

Fixed & Gooseneck Options

Stiebel Eltron offers compatible tapware styles for different kitchen-sink layouts.

Outlet Must Stay Free

The outlet should not be obstructed by incompatible flow restrictions, hoses or attachments that could interfere with the open-vented operation.

Never convert the SNU to mains-pressure operation. Using incorrect tapware or restricting the outlet can expose the storage tank to pressure for which it was not designed.

INSTALLATION REQUIREMENTS

What Is Required to Install an SNU 5 Plus?

One suitable isolated kitchen sink appropriate for an open-vented point-of-use heater.

Compatible Stiebel Eltron open-vented tapware fitted as part of the complete hydraulic system.

Under-sink space for the 423 × 240 × 212mm appliance plus pipework and service access.

Suitable wall or mounting surface for the manufacturer's wall-mounting rail.

Upward-facing water connections installed in the correct under-sink orientation.

Suitable cold-water supply within the permissible pressure limits of the compatible tapware.

Suitable accessible 240V power point for the plug-in appliance.

Correct commissioning so the appliance is filled with water before electrical heating is activated.

Do not energise the appliance before it is correctly filled. The plumbing setup and open-vented tap must be commissioned first so the storage tank is full before the heating element operates.

POWER REQUIREMENTS

Does the SNU 5 Plus Need Special Electrical Power?

No three-phase supply is required. The SNU 5 Plus is a single-phase plug-in water heater.

2.2kW at 240V

The current Australian specification lists 2.2kW rated heating output at 240V.

9.1A Rated Current

The appliance draws approximately 9.1 amps at 240V.

10A Protection

Stiebel Eltron specifies 10A circuit or fuse protection for the standard Australian model.

Plug-in does not mean any power point is automatically suitable. The socket position and electrical installation still need to meet applicable electrical requirements and remain accessible for the appliance.

JR INSTALLATION

What's Included With Stiebel Eltron SNU 5 Plus Installation?

JR's live installation selector above shows the current packages available for the SNU 5 Plus. The correct package depends on whether the property already has a suitable open-vented installation or needs changes to tapware, plumbing, power or the under-sink layout.

SNU 5 Plus Supply

Supply of the Stiebel Eltron SNU 5 Plus as part of the applicable JR installation package.

Under-Sink Installation

Mounting and plumbing connection within the scope of the selected installation package.

Tapware Assessment

Confirmation that the existing tap is a compatible open-vented unit or inclusion of the required tapware changes where covered by the selected scope.

Testing & Commissioning

The tank is filled, heated and checked for correct operation before the installation is handed over.

JR's Base installation only suits an already compliant like-for-like setup. JR's current page states that existing tapware, plumbing and power should already be compliant and require no alteration for a base replacement.

CURRENT INSTALLED PRICING

How Much Does Stiebel Eltron SNU 5 Plus Installation Cost?

JR currently lists the Stiebel Eltron SNU 5 Plus from $1,449 installed. The live selector above should be used for the current total because the applicable package depends on the condition of the existing sink, tapware, plumbing, power and cupboard arrangement.

Like-for-Like SNU Replacement

An existing compliant SNU installation with suitable open-vented tapware can be a relatively simple replacement.

Tapware Conversion

If normal pressure tapware is currently fitted, installation can require the correct open-vented mixer and associated plumbing changes.

New Under-Sink Installation

A new point-of-use system can require additional plumbing, mounting or electrical work compared with a direct replacement.

Check Current SNU 5 Plus Installed Pricing

Use the live package selector above to confirm the current installed total, package inclusions and available installation dates.

BRISBANE INSTALLATION

Stiebel Eltron SNU 5 Plus Installation Brisbane

JR Gas & Water supplies and installs the Stiebel Eltron SNU 5 Plus across eligible Brisbane service areas for suitable single-sink kitchen and kitchenette applications.

It can be especially useful where one kitchen sink is positioned a long distance from the property's main hot water system and only modest volumes of hot water are normally required. Placing a small heater directly under the sink can reduce the delay before hot water reaches the tap.

For replacements, JR can check whether the existing open-vented mixer, cupboard space, cold-water service and electrical supply remain suitable. If the existing sink has standard pressure tapware, the mains-pressure SHC range may be the more practical alternative.

GOLD COAST INSTALLATION

Stiebel Eltron SNU 5 Plus Installation Gold Coast

JR Gas & Water provides Stiebel Eltron SNU 5 Plus installation across eligible Gold Coast service areas for homes, offices and light-commercial properties needing small-volume hot water at one kitchen sink.

The 5L model is particularly useful where cupboard space is tight and the larger storage volume of the SNU 10 Plus is not required. Its compact 423mm × 240mm × 212mm body uses materially less cupboard space than the 10L version.

Where usage is heavier or more stored water is preferred, JR can compare the SNU 10 Plus. Where standard pressure tapware or several fixtures need to be supplied, the mains-pressure SHC range may make more sense.

WARRANTY & OWNERSHIP

Stiebel Eltron SNU 5 Plus Warranty

Stiebel Eltron currently provides a 5-year full parts and labour warranty for domestic SNU 5 Plus installations, subject to its complete Australian warranty conditions.

Commercial-use coverage is shorter, and compatible open-vented tapware has separate manufacturer warranty terms.

JR's live SNU 5 page also identifies the product as eligible for JR's Lifetime Warranty program. JR Lifetime Warranty eligibility is separate from Stiebel Eltron's manufacturer warranty and remains subject to JR's current program terms.

Correct tapware and installation are essential. Manufacturer warranty coverage remains subject to the appliance being installed and operated in accordance with Stiebel Eltron's instructions and applicable requirements.

COMMON QUESTIONS

Stiebel Eltron SNU 5 Plus FAQs

Is the SNU 5 Plus instant or storage hot water?

It is a compact electric storage water heater. It stores 5 litres of hot water beneath the sink rather than heating water instantaneously as it flows.

Is the SNU 5 Plus mains pressure?

No. It is an open-vented, non-pressurised water heater and must not be installed as a conventional mains-pressure storage unit.

Does the SNU 5 Plus require special tapware?

Yes. Stiebel Eltron specifies compatible open-vented sink tapware for the SNU Plus range.

Can I connect the SNU 5 Plus to a normal kitchen mixer?

No. A standard pressure mixer does not provide the hydraulic arrangement required by the non-pressurised SNU tank. If you want to retain standard pressure tapware, compare a mains-pressure SHC model.

Can the SNU 5 Plus supply more than one tap?

No. Stiebel Eltron specifies the current SNU 5 Plus for one draw-off point.

Can the SNU 5 Plus be used at a bathroom basin?

Stiebel Eltron's current Australian SNU Plus datasheet states that it is not suitable for a basin installation where a tempering valve or thermostatic mixing valve is required. Its clearest application is a single isolated kitchen sink.

How much hot water does the SNU 5 Plus provide?

The tank stores 5 litres. Stiebel Eltron's current Australian data lists approximately 10 litres of mixed water at 40°C.

What does the anti-drip function do?

Stiebel Eltron states that the anti-drip function on the 5L model reduces expansion-water dripping from the tap while the tank heats and can help reduce limescale deposits around the sink and tap.

Does the SNU 10 Plus also have the anti-drip function?

Stiebel Eltron specifically identifies the anti-drip function as a feature of the 5 litre SNU Plus model. The current 10L product data does not list the same feature.

What temperature can the SNU 5 Plus be set to?

Stiebel Eltron's current Australian SNU Plus datasheet lists an adjustable temperature range of approximately 30°C to 85°C.

Does the SNU 5 Plus need three-phase power?

No. It uses single-phase power and is rated at 2.2kW and approximately 9.1A at 240V.

Can the SNU 5 Plus plug into a normal power point?

It is supplied as a plug-in appliance. The electrical installation and power point still need to be suitable, correctly positioned and compliant.

What are the dimensions of the SNU 5 Plus?

Stiebel Eltron's current Australian data lists the unit at approximately 423mm high, 240mm wide and 212mm deep.

What is the difference between the SNU 5 Plus and SNU 10 Plus?

The SNU 5 stores 5L and provides approximately 10L mixed water at 40°C, while the SNU 10 stores 10L and provides approximately 19L. Both are open vented, use 2.2kW at 240V and supply one outlet. The 5L model is smaller and includes the anti-drip feature.

What is the difference between SNU 5 Plus and SHC 10 AU?

The SNU 5 is non-pressurised and requires specialised open-vented tapware for one sink. The SHC 10 is a mains-pressure storage system that can use compatible pressure tapware and supply one or more nearby outlets.

How much does SNU 5 Plus installation cost?

JR currently lists the SNU 5 Plus from $1,449 installed. The actual live total depends on the installation package selected and whether tapware, plumbing, power or other changes are required.

Can JR install the SNU 5 Plus in Brisbane?

Yes. JR Gas & Water provides suitable under-sink hot water installation across eligible Brisbane and surrounding South East Queensland service areas.

Can JR install the SNU 5 Plus on the Gold Coast?

Yes. Stiebel Eltron SNU 5 Plus installation is available across eligible Gold Coast service areas where the sink, tapware, plumbing and electrical setup suit the product.

Is same-day installation available?

JR's live SNU 5 page currently lists same-day installation availability for suitable jobs. Jobs requiring open-vented tapware conversion, plumbing alterations or additional electrical work can require a broader installation package.

READY TO INSTALL

Install the Stiebel Eltron SNU 5 Plus With JR Gas & Water

The Stiebel Eltron SNU 5 Plus is a specialised compact hot water solution for one isolated kitchen sink where a 5L local storage supply and compatible open-vented tapware suit the application.

Use the live installation selector above to compare current JR packages, installed pricing and booking availability. If you are unsure whether your existing mixer is compatible, whether 5L is enough capacity or whether a mains-pressure SHC would better suit the property, use JR's quote or onsite-assessment option before booking.

If you're in Queensland and considering a new electric hot water system, JR Gas & Water is the company to choose. Here's why:

Experience and Expertise: JR Gas & Water has over 10 years of experience in the gas and plumbing industry. Their team of licensed and insured professionals is highly skilled and knowledgeable about all aspects of electric hot water system installation, maintenance, and repair. They can provide expert advice on the best system for your needs and ensure a smooth installation process.

Quality Products: JR Gas & Water uses only high-quality products from trusted brands to ensure your electric hot water system is reliable and efficient. They also offer a range of options to suit different budgets and requirements.

Competitive Pricing: JR Gas & Water offers competitive pricing for their electric hot water systems, ensuring that you get a great value for your investment. They also provide a detailed quote upfront, so there are no surprises or hidden costs.

Customer Service: JR Gas & Water is committed to providing excellent customer service. They are always available to answer any questions or concerns you may have and are committed to ensuring your satisfaction.

Local Business: JR Gas & Water is a locally owned and operated business in Queensland. By choosing them for your electric hot water installation, you are supporting a local business and contributing to the local economy.

Warranty and Guarantee: JR Gas & Water provides a warranty and guarantee on all their products and services, giving you peace of mind knowing that your system is covered in case of any issues.

Energy Efficiency: Electric hot water systems can be energy efficient, and JR Gas & Water can help you choose the right system for your needs. They can provide advice on energy-saving features and options, such as timers and thermostats, to help you save on your energy bills.

Safety: JR Gas & Water is committed to safety and ensuring that all installations are done to the highest safety standards. They are also familiar with local safety regulations and requirements, ensuring that your electric hot water system is installed safely and in compliance with all relevant codes.

JR Gas & Water is a reliable and experienced choice for your electric hot water system installation in Queensland. With a commitment to quality products, competitive pricing, excellent customer service, and safety, they can help you make the switch to a more efficient and cost-effective solution for your hot water needs. Contact them today to learn more about their services and how they can help you.