Rheem Stellar 125L Stainless Steel Electric Hot Water System

The Rheem Stellar 125L Stainless Steel Electric Hot Water System is available online from Hot Water Outlet as a supply-only electric storage water heater with metro delivery available in selected areas Australia wide.

Customers can purchase the Rheem Stellar 125L as a supply-only hot water system and request assistance arranging installation quotes after purchase through licensed local installers in selected metro regions.

The Rheem Stellar 125L stainless steel electric water heater is a premium compact electric storage hot water system designed for smaller homes, units, townhouses and replacement jobs where corrosion resistance, lighter handling and reduced anode maintenance are important. With 125L hot water delivery, stainless steel cylinder and water fittings, no anode, dual handed cold water connections, and a 12-year cylinder warranty, it is a strong option for customers wanting a higher-grade alternative to a standard vitreous enamel electric storage system.

About the Rheem Stellar 125L Stainless Steel Electric Water Heater

The Rheem Stellar 125L Stainless Steel Electric Water Heater is designed for smaller households that want reliable stored hot water with a stainless steel cylinder instead of a traditional enamel-lined cylinder.

Unlike many standard electric storage systems, the Rheem Stellar stainless steel model does not require a sacrificial anode. This can help reduce maintenance requirements over the life of the unit where the system is suitable for the local water conditions.

Rheem lists the 125L Stellar model as suitable for around 3 to 4 people, depending on shower length, hot water usage, tariff setup, climate, fixture flow rates and household habits.

Buy Rheem Stellar 125L Supply Only

Order the Rheem Stellar 125L Stainless Steel Electric Hot Water System online from Hot Water Outlet with metro delivery available in selected areas across Australia.

This option is ideal if you already have a licensed plumber or electrician arranged and only need the unit supplied.

The supply-only product price includes the hot water system itself.

Installation, old system removal, disposal, valve kits, electrical work, plumbing alterations, compliance upgrades and additional site requirements are not included unless separately quoted.

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Installation Quotes Available After Purchase

Hot Water Outlet does not directly provide installation services.

After purchasing the Rheem Stellar 125L Stainless Steel Electric Hot Water System, customers in selected metro areas may request assistance arranging installation quotes through licensed local plumbers and electricians.

Installation quote availability depends on:

• service location

• installer availability

• existing system type

• electrical suitability

• water quality suitability

• plumbing suitability

• access requirements

• compliance requirements

Additional installation costs may apply for:

• valve upgrades

• electrical upgrades

• drainage changes

• pipework changes

• difficult access

• old system removal

• disposal

• compliance upgrades

Rheem Stellar 125L Delivery Brisbane

Hot Water Outlet offers metro delivery for the Rheem Stellar 125L Stainless Steel Electric Hot Water System in selected Brisbane areas.

Customers can order online and request assistance arranging installation quotes after purchase where available.

Rheem Stellar 125L Delivery Gold Coast

Hot Water Outlet offers metro delivery for the Rheem Stellar 125L Stainless Steel Electric Hot Water System in selected Gold Coast service areas.

Customers can purchase online and organise installation separately or request help arranging installation quotes after purchase.

Rheem Stellar 125L Delivery Sydney

Hot Water Outlet offers metro delivery for the Rheem Stellar 125L Stainless Steel Electric Hot Water System in selected Sydney metro areas.

Customers can order online with installation quote assistance available after purchase in selected locations.

Rheem Stellar 125L Delivery Melbourne

Hot Water Outlet offers metro delivery for the Rheem Stellar 125L Stainless Steel Electric Hot Water System in selected Melbourne metro areas.

Customers can purchase the system online and request help arranging installation quotes after delivery.

Is the Rheem Stellar 125L Right for Your Home?

The Rheem Stellar 125L Stainless Steel Electric Hot Water System may be suitable if you are replacing a smaller electric storage water heater and want a premium stainless steel model from one of Australia’s best-known hot water brands.

It is commonly suited to smaller homes, units, townhouses, granny flats, rental properties and households with moderate daily hot water demand.

Because this is a stainless steel water heater, water quality suitability is important. Stainless steel water heaters are not recommended for every location or water condition, so suitability should be checked before ordering or installation.

This system may suit you if:

• you are replacing an existing electric storage hot water system

• you want a 125L stainless steel electric hot water unit

• your household has around 3 to 4 people depending on usage

• you want a stainless steel cylinder and stainless steel water fittings

• you want a system with no sacrificial anode

• you want a lighter unit than many comparable enamel-lined systems

• your property has suitable water quality for stainless steel

• your property has suitable access and installation space

• your plumbing and electrical setup are suitable for the selected installation option

• you prefer supply-only purchase flexibility

Extra work may be required if:

• the system is being moved to a new location

• existing valves are old, missing or non-compliant

• extra pipework or drainage changes are needed

• electrical upgrades are required

• access is restricted

• a compliant base, tray, drainage or insulation is required

• the old system needs additional removal or disposal work

• the selected element rating does not match the existing electrical setup

• local water quality is not suitable for stainless steel water heaters

Key Features of the Rheem Stellar 125L

• 125L stainless steel electric storage hot water system

• Model 4A1125

• Suitable for around 3 to 4 people depending on usage

• 125L hot water delivery

• Stainless steel cylinder

• Stainless steel water fittings

• No anode, helping reduce maintenance and service costs

• Dual handed cold water connections

• Hot water connection at the top of the water heater

• Indoor or outdoor installation suitability

• Australian made

• 17% better performance than MEPS under Rheem’s stated comparison

• Up to 42% lighter than comparable systems under Rheem’s stated comparison

• 1.8kW and 3.6kW element rating options

• Rp 3/4 water connections

• 12-year cylinder warranty under Rheem warranty terms

• 3-year labour warranty on the cylinder under Rheem warranty terms

• 1-year parts and labour warranty on other domestic components under Rheem warranty terms

Quick Specs

Brand: Rheem
Range: Rheem Stellar Stainless Steel Electric
Product: Rheem Stellar 125L Stainless Steel Electric Water Heater
Model: 4A1125
System Type: Stainless Steel Electric Storage Hot Water System
Hot Water Delivery: 125L
Recommended Household Size: Around 3 to 4 people depending on usage
Cylinder Material: Stainless steel
Water Fittings: Stainless steel
Anode: No anode required
Element Rating: 1.8kW and 3.6kW options
Installation Type: Indoor or outdoor installation
Water Connections: Rp 3/4
Relief Valve Pressure: 1400 kPa
Expansion Control Valve Setting: 1200 kPa
Max Water Supply Pressure With ECV: 960 kPa
Max Water Supply Pressure Without ECV: 1120 kPa
Approximate Height: 1295mm
Approximate Diameter: 495mm
Approximate Packaged Weight: 31kg
Cylinder Warranty: 12 years subject to Rheem warranty terms
Cylinder Labour Warranty: 3 years subject to Rheem warranty terms
Other Domestic Parts and Labour Warranty: 1 year subject to Rheem warranty terms

Stainless Steel Cylinder

The Rheem Stellar 125L uses a stainless steel cylinder and stainless steel water fittings.

This design helps resist corrosion and can support longer product life where the water quality is suitable. It also removes the need for a sacrificial anode, helping reduce maintenance requirements compared with many enamel-lined electric storage systems.

Stainless steel is not suitable for every water supply area, so water quality suitability should be checked before choosing this model.

No Anode Maintenance

One of the key benefits of the Rheem Stellar 125L Stainless Steel Electric Water Heater is that it does not use a sacrificial anode.

Traditional enamel-lined storage systems usually rely on anodes to help protect the cylinder. Stainless steel systems are different, helping reduce anode-related maintenance and service costs over time where the product is suitable for the site.

Lighter and Easier to Handle

The Rheem Stellar 125L is listed as being up to 42% lighter than comparable systems under Rheem’s stated comparison.

This can help with handling and installation, especially in tight access areas, units, townhouses, side paths and compact replacement locations where a heavier cylinder may be more difficult to move into position.

Actual installation difficulty still depends on access, stairs, distance from vehicle, base location, existing unit removal and site conditions.

Better Energy Performance

Rheem lists the Stellar 125L as 17% better than MEPS under its stated comparison, helping reduce energy use compared with minimum standard requirements.

Actual running costs still depend on household hot water use, thermostat settings, tariff setup, element rating, climate and how the system is used.

For homes on a suitable lower-cost tariff, the correct electrical setup may help reduce operating costs compared with heating only on a standard tariff.

Dual Handed Connections

The Rheem Stellar 125L includes dual handed cold water connections, with the hot water connection located at the top of the water heater.

This can make replacement installation easier because the cold water connection can better suit different existing plumbing layouts. Dual handed connections are especially useful in like-for-like replacement jobs where matching existing pipework can help reduce unnecessary plumbing changes.

Compact 125L Electric Storage Design

The 125L storage size makes this model a practical choice for smaller homes and moderate hot water demand.

It is larger than a small 50L point-of-use system but more compact than 160L, 250L, 315L and 400L electric storage models. This makes it useful for households that need a proper storage hot water system but do not need a large family-size cylinder.

Water Quality Suitability

The Rheem Stellar 125L Stainless Steel Electric Water Heater is not recommended for every water condition.

Stainless steel cylinders can be a strong option where the local water supply is suitable, but some water chemistry conditions may make a vitreous enamel system more appropriate. Suitability should be checked before installation, especially in areas with known water quality concerns.

Common Uses

The Rheem Stellar 125L Stainless Steel Electric Hot Water System can be suitable for:

• smaller homes

• units and apartments

• townhouses

• granny flats

• rental properties

• compact replacement locations

• electric storage hot water replacement

• homes wanting stainless steel cylinder construction

• homes wanting reduced anode maintenance

• homes with suitable water quality for stainless steel

• indoor or outdoor electric hot water installations

Frequently Asked Questions

Can I buy the Rheem Stellar 125L supply only?

Yes. You can buy the Rheem Stellar 125L as a supply-only product if you already have a licensed installer arranged.

Does Hot Water Outlet install electric hot water systems?

No. Hot Water Outlet does not directly provide installation services. Customers may request assistance arranging installation quotes after purchase in selected metro areas.

Can I get an installation quote after purchasing?

Yes. Customers in selected metro areas may request help arranging installation quotes through licensed local installers after purchasing the system.

Is delivery available Australia wide?

Metro delivery is available in selected service areas across Australia. Delivery availability may vary depending on location and product type.

What is the model number for the Rheem Stellar 125L?

The Rheem Stellar 125L stainless steel electric water heater model number is 4A1125.

How much hot water does the Rheem Stellar 125L deliver?

The Rheem Stellar 125L has 125L hot water delivery.

How many people is the Rheem Stellar 125L suitable for?

The Rheem Stellar 125L is commonly suited to around 3 to 4 people depending on shower length, hot water usage, tariff setup, climate and household habits.

Is the Rheem Stellar 125L stainless steel?

Yes. The Rheem Stellar 125L uses a stainless steel cylinder and stainless steel water fittings.

Does the Rheem Stellar 125L need an anode?

No. The Rheem Stellar 125L stainless steel water heater does not use a sacrificial anode, helping reduce anode maintenance requirements.

Can the Rheem Stellar 125L be installed outside?

Yes. The Rheem Stellar 125L is suitable for indoor or outdoor installation where the location is compliant and suitable.

Is the Rheem Stellar 125L suitable for all water areas?

No. Stainless steel water heaters are not recommended for every water condition. Water quality suitability should be checked before ordering or installation.

What element sizes are available?

The Rheem Stellar 125L is listed with 1.8kW and 3.6kW element rating options. The correct option depends on the selected model, electrical setup and site requirements.

What is the warranty on the Rheem Stellar 125L?

Rheem lists the Stellar 125L with a 12-year cylinder warranty, 3-year labour warranty on the cylinder and 1-year parts and labour warranty on other domestic components subject to Rheem warranty terms and conditions.

What is the relief valve pressure?

The Rheem Stellar 125L is listed with a 1400 kPa relief valve pressure.

What is the expansion control valve setting?

The Rheem Stellar 125L is listed with a 1200 kPa expansion control valve setting.

What is the difference between Rheem Stellar 125L and a standard Rheem 125L electric system?

The Rheem Stellar 125L uses a stainless steel cylinder and does not require a sacrificial anode. A standard Rheem 125L electric water heater uses a different cylinder construction and includes anode-based cylinder protection. The better choice depends on budget, water quality, installation conditions and maintenance preference.

Is the Rheem Stellar 125L good for replacing an old electric hot water system?

Yes. The Rheem Stellar 125L can be a strong replacement option for selected smaller electric storage hot water systems provided the existing location, plumbing, electrical supply, household hot water demand and water quality suit a stainless steel 125L electric storage water heater.

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.

Whether you already know exactly what you need or you are still comparing electric, gas, instant gas, gas storage or heat pump hot water options, Hot Water Outlet makes it easier to order with confidence.

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See your hot water system price upfront, then add common valves, fittings or accessories before placing your order. This makes it easier to plan your purchase and compare options before checkout.

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Key specs, sizing details, tank capacity, flow rate, gas type, energy source, dimensions, warranty information, product features and suitability notes are shown clearly, so you can compare hot water systems properly before you buy.

Valves and Accessories Available

Where relevant, you can add common hot water parts such as tempering valves, pressure relief valves, duo valves, non-return valves, thermostats, elements, pipework and fittings to help complete your order.

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Hot Water Outlet is built for customers who want a faster, clearer and more convenient way to buy hot water systems and hot water parts online.

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Order online with confidence.

It is a simpler way to buy the hot water products and parts that matter most.

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.