Rheem Stellar 330 Natural Gas Hot Water System

The Rheem Stellar 330 Natural Gas Hot Water System is available online from Hot Water Outlet as a supply-only natural gas storage water heater with metro delivery available in selected areas Australia wide.

Customers can purchase the Rheem Stellar 330 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 330 natural gas water heater is a premium Australian-made gas storage hot water system designed for families that want strong recovery, mains pressure performance and high-efficiency gas storage hot water. With 130L storage capacity, 330L first hour capacity, 200L/hour hot water recovery, 5 Star gas energy efficiency, Rheem Superflue® technology and a 10-year cylinder warranty, it is a strong replacement option for homes already using natural gas storage hot water.

About the Rheem Stellar 330 Natural Gas Water Heater

The Rheem Stellar 330 Gas Water Heater is a premium gas storage hot water system designed to deliver stored hot water with fast recovery as hot water is used.

Unlike a gas continuous flow unit, the Stellar 330 stores hot water in a cylinder and recovers the tank using natural gas. This makes it a practical option for customers who like the familiar performance of a storage water heater but want stronger recovery and better gas efficiency than many older 3 Star or 4 Star gas storage units.

The Rheem Stellar 330 is designed for outdoor installation and is commonly selected for family homes replacing an existing external natural gas storage hot water system.

Buy Rheem Stellar 330 Supply Only

Order the Rheem Stellar 330 Natural Gas 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 gas fitter or plumber 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, gas fitting work, plumbing alterations, compliance upgrades and additional site requirements are not included unless separately quoted.

Supply-only is best for customers searching for:

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Installation Quotes Available After Purchase

Hot Water Outlet does not directly provide installation services.

After purchasing the Rheem Stellar 330 Natural Gas Hot Water System, customers in selected metro areas may request assistance arranging installation quotes through licensed local plumbers and gas fitters.

Installation quote availability depends on:

• service location

• installer availability

• existing system type

• natural gas suitability

• outdoor installation suitability

• gas connection suitability

• plumbing suitability

• compliance requirements

Additional installation costs may apply for:

• valve upgrades

• gas fitting work

• plumbing changes

• pipework alterations

• difficult access

• base preparation

• old system removal

• disposal

• compliance upgrades

Rheem Stellar 330 Delivery Brisbane

Hot Water Outlet offers metro delivery for the Rheem Stellar 330 Natural Gas Hot Water System in selected Brisbane areas.

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

Rheem Stellar 330 Delivery Gold Coast

Hot Water Outlet offers metro delivery for the Rheem Stellar 330 Natural Gas 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 330 Delivery Sydney

Hot Water Outlet offers metro delivery for the Rheem Stellar 330 Natural Gas Hot Water System in selected Sydney metro areas.

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

Rheem Stellar 330 Delivery Melbourne

Hot Water Outlet offers metro delivery for the Rheem Stellar 330 Natural Gas 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 330 Right for Your Home?

The Rheem Stellar 330 Natural Gas Hot Water System may be suitable if you are replacing an existing outdoor natural gas storage water heater and want a premium high-recovery system from one of Australia’s best-known hot water brands.

It is commonly suited to family homes already using natural gas hot water, especially where the customer wants stored hot water, mains pressure delivery and strong first hour capacity.

The Stellar 330 is often a practical option for households that want the recovery benefits of gas storage without changing to electric, heat pump or continuous flow.

This system may suit you if:

• you are replacing an existing outdoor natural gas storage hot water system

• your property uses natural gas

• you want a premium 5 Star gas storage model

• you want mains pressure hot water to multiple taps

• you want strong recovery for family hot water demand

• you want 330L first hour capacity

• you want faster recovery than many standard gas storage models

• your current location suits an outdoor gas storage replacement

• your gas supply, water pressure and access are suitable

• you prefer supply-only purchase flexibility

Extra work may be required if:

• the system is being moved to a new location

• the existing unit is LPG, not natural gas

• existing valves are old, missing or non-compliant

• the natural gas connection needs alteration

• extra pipework or plumbing changes are needed

• water pressure is outside the required range

• access is restricted

• the existing base or support area is unsuitable

• the old system needs additional removal or disposal work

• the installation location does not meet outdoor clearance requirements

Key Features of the Rheem Stellar 330

• Natural gas storage hot water system

• Model 850330

• 130L storage capacity

• 330L first hour capacity

• 200L/hour hot water recovery

• 5 Star gas energy efficiency

• Mains pressure hot water to multiple taps

• Outdoor installation

• Australian made

• Patented Rheem Superflue® technology

• Two anodes

• Suitable for connection to natural gas

• Relief valve pressure of 1400 kPa

• Expansion control valve setting of 1200 kPa

• Rp 3/4 water connections

• Rp 1/2 gas connection

• Approximate packaged weight of 87kg

• 10-year cylinder warranty under Rheem warranty terms

• 3-year labour warranty on 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 Gas Storage
Product: Rheem Stellar 330 Gas Water Heater
Model: 850330
Gas Variant: Natural Gas
System Type: Gas Storage Hot Water System
Installation Type: Outdoor installation
Storage Capacity: 130L
First Hour Capacity: 330L
Hourly Recovery: 200L
Energy Rating: 5 Star
Gas Consumption: 42 MJ/hr
Water Connections: Rp 3/4
Gas Connection: Rp 1/2
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 Packaged Weight: 87kg
Cylinder Warranty: 10 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

Natural Gas Storage Hot Water

This product is the natural gas version of the Rheem Stellar 330 gas storage water heater.

It is designed for properties connected to natural gas. The correct gas type must be selected before ordering or installation, as natural gas and LPG systems are not interchangeable without selecting the correct product and completing suitable licensed gas work.

If your current water heater is connected to natural gas, this product is the correct gas type pathway.

330L First Hour Capacity

The 330L first hour capacity is one of the key reasons customers choose the Rheem Stellar 330.

First hour capacity combines stored hot water with the unit’s recovery performance. This helps the system deliver a strong amount of usable hot water over the first hour, which can be useful for family routines where showers, kitchen use and laundry demand may happen close together.

This makes the Rheem Stellar 330 a strong choice for homes where hot water recovery matters.

200L/Hour Hot Water Recovery

The Rheem Stellar 330 is designed with superior hot water recovery, listed at 200L/hour.

Fast recovery helps the water heater replace hot water as it is used, reducing the chance of running out during normal household routines. This is especially useful for family homes, rental properties and homes where several people use hot water in a short period.

5 Star Gas Efficiency

The Rheem Stellar 330 has a 5 Star gas energy efficiency rating, making it more efficient than many older 3 Star and 4 Star gas storage water heaters.

This can help reduce gas use compared with older, less efficient storage systems. Actual running costs still depend on household hot water use, natural gas pricing, thermostat settings, climate, installation condition and how the system is used.

Rheem Superflue® Technology

The Rheem Stellar 330 includes patented Rheem Superflue® technology, designed to support stronger performance and improved gas storage efficiency.

This is a major feature that helps position the Stellar 330 as a premium gas storage hot water system rather than a basic replacement unit.

Mains Pressure Hot Water

The Rheem Stellar 330 Gas Water Heater provides mains pressure hot water, helping deliver strong flow to multiple taps where the property’s plumbing and pressure conditions are suitable.

This makes it a practical option for family homes where more than one hot water outlet may be used across the home.

Outdoor Installation Only

The Rheem Stellar 330 Natural Gas Water Heater is designed for outdoor installation.

It should not be installed internally. Gas hot water systems must be installed in accordance with manufacturer instructions, gas fitting rules, ventilation requirements, clearance requirements and local compliance standards.

Common Uses

The Rheem Stellar 330 Natural Gas Hot Water System can be suitable for:

• natural gas storage hot water replacement

• outdoor gas storage installations

• family homes

• townhouses

• rental properties

• investment homes

• properties replacing older gas storage units

• homes wanting mains pressure gas storage hot water

• homes needing strong first hour capacity

• homes needing fast gas storage recovery

• customers wanting a premium Rheem gas storage model

Frequently Asked Questions

Can I buy the Rheem Stellar 330 supply only?

Yes. You can buy the Rheem Stellar 330 as a supply-only product if you already have a licensed gas fitter or plumber arranged.

Does Hot Water Outlet install gas 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.

Is this model natural gas or LPG?

This page is for the natural gas version of the Rheem Stellar 330 gas storage water heater. The gas type must match the property’s supply before ordering or installation.

Can this Rheem gas storage unit be installed indoors?

No. This model is designed for outdoor installation. Gas hot water units must be installed in accordance with location, clearance, ventilation and compliance requirements.

What is the storage capacity?

The Rheem Stellar 330 has a listed 130L storage capacity.

Why is it called Stellar 330 if the storage capacity is 130L?

The Stellar 330 name refers to the system’s 330L first hour capacity, not the storage tank size. First hour capacity combines stored hot water and recovery performance.

What is the first hour capacity?

The Rheem Stellar 330 has a listed 330L first hour capacity.

What is the hourly recovery?

The Rheem Stellar 330 has a listed 200L/hour hot water recovery.

What is the energy rating?

The Rheem Stellar 330 has a 5 Star gas energy efficiency rating.

What is the gas consumption?

The Rheem Stellar 330 natural gas model is listed with 42 MJ/hr gas consumption.

What water pressure does it suit?

The Rheem Stellar 330 lists 1400 kPa relief valve pressure, 1200 kPa expansion control valve setting, 960 kPa maximum water supply pressure with ECV and 1120 kPa maximum water supply pressure without ECV.

What are the water and gas connection sizes?

The Rheem Stellar 330 gas storage model is listed with Rp 3/4 water connections and Rp 1/2 gas connection.

Is the Rheem Stellar 330 made in Australia?

Yes. The Rheem Stellar 330 gas water heater is Australian made.

What is Rheem Superflue®?

Rheem Superflue® is patented Rheem technology used in the Stellar gas storage range to support strong performance and high gas efficiency.

What is the warranty on the Rheem Stellar 330?

The Rheem Stellar 330 is listed with a 10-year cylinder warranty, 3-year labour warranty on the cylinder and 1-year parts and labour warranty on all other domestic components subject to Rheem warranty terms and conditions.

Is the Rheem Stellar 330 good for replacing an old gas storage hot water system?

Yes. The Rheem Stellar 330 can be a strong replacement option where the existing system is natural gas, the installation location is outdoors, and the gas supply, water pressure, pipework and compliance requirements are suitable.

What is the difference between Rheem Stellar 330 and Rheem 4 Star 170L?

The Rheem Stellar 330 is a premium 5 Star natural gas storage system with 330L first hour capacity and 200L/hour recovery. The Rheem 4 Star 170L is a 4 Star gas storage model with larger storage capacity but lower first hour capacity and lower recovery. The better choice depends on the household’s hot water demand, gas setup, budget and replacement requirements.

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.

Why Customers Choose Hot Water Outlet

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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.

Product Details That Actually Help

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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Add your hot water unit and selected parts to cart in one order, instead of searching across multiple suppliers for systems, valves, fittings and accessories.

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Not sure which hot water system, size, energy type or accessory is right? Hot Water Outlet gives you a clearer way to compare electric hot water systems, heat pump hot water systems, gas storage hot water systems and instant gas hot water units before you order.

Designed To Make Your Decision Easier

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.

Instead of guessing which product suits your home, searching multiple suppliers, or trying to match accessories separately, you can review the system, compare the specifications and add common hot water parts before checkout.

Choose your hot water system.

Add the valves and accessories you need.

Compare product details before checkout.

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.