5-Star Gas Storage Hot Water Systems Australia
Our 5-Star Gas Storage Best Sellers
Choose How You Want to Order
Not every hot water job is the same. Choose supply only if you already have an installer arranged, or select a supplied and installed option where available.
Supply Only
Best if you already have a licensed plumber, gas fitter or electrician arranged.
Your product price is for the hot water system only. Installation is not included unless shown or selected separately.
Valves, old unit removal, disposal, electrical work, pipework changes, gas work and compliance upgrades may be required depending on your installation.
Supplied & Installed
Best if you want the hot water system and installation organised together.
Select your preferred system, answer the installation questions on the product page and choose any required installation options before checkout.
Installation availability and final requirements depend on your location, access, product type, existing services and site conditions.
Not Sure What You Need?
Hot water systems vary by size, energy source, household demand and installation setup.
Compare the available hot water systems below or use the selection tools throughout the site to narrow down the right option for your home.
Consider household size, energy source, available space, hot water demand, running costs and installation requirements before choosing.
5-Star Gas Hot Water Systems for Brisbane, Gold Coast & Major Australian Metros
5-Star gas hot water systems provide a higher-efficiency gas-storage option for homes that want to retain tank-style gas hot water rather than change to continuous flow.
The current Installed Today 5-Star range consists of Rheem Stellar 330 and Rheem Stellar 360 natural-gas storage systems, both designed for strong recovery and family hot-water demand.
Installed Today supplies these systems across supported mainland Australian markets, with supplied and installed options available in eligible Brisbane and Gold Coast service areas.
Rheem Stellar 5-Star Gas Storage Systems
What Does 5-Star Gas Hot Water Mean?
The 5-Star rating describes the gas-energy-efficiency performance of the appliance under the applicable rating system.
Compared with lower-rated gas-storage systems, a 5-Star model is designed to use gas more efficiently while still providing stored hot water and strong recovery.
The star rating should not be confused with tank size, recovery rate or household capacity. Those are separate specifications.
Rheem Stellar 330 vs Rheem Stellar 360
| Model | Stored Water | First-Hour Capacity | Recovery | Current Household Guide |
|---|---|---|---|---|
| Stellar 330 | 130L | 330L | 200L/hour | Around 6 people |
| Stellar 360 | 160L | 360L | 200L/hour | Around 8+ people |
Household sizing is a starting point only. Bathrooms, shower duration, simultaneous use, bath filling and actual peak demand still matter.
Why Is the Stellar 330 Only 130L?
The number in the Stellar model name refers to first-hour capacity, not the physical tank volume.
The Stellar 330 stores approximately 130L but is designed to deliver up to 330L over the first hour by combining stored hot water with rapid gas recovery.
The Stellar 360 stores approximately 160L and combines that storage with recovery to provide a larger 360L first-hour capacity.
Why First-Hour Capacity Matters with Gas Storage
Tank size tells you how much heated water is stored, but gas storage can continue reheating water quickly while the household is using it.
First-hour capacity combines the stored supply with recovery to show how much hot water the system can deliver over a high-demand first hour under specified conditions.
This is particularly relevant to family homes where several showers or other hot-water uses occur close together.
200L Per Hour Gas Hot Water Recovery
Both current Rheem Stellar models list 200L/hour recovery.
Strong recovery is one of the main reasons a gas-storage system can support household demand despite having a smaller physical storage volume than many electric tanks.
Actual household performance still depends on inlet temperature, thermostat settings, plumbing and the pattern of hot-water use.
Rheem Stellar 330 Natural Gas Hot Water System
The Rheem Stellar 330 is the smaller of the two current 5-Star systems.
It combines 130L storage, 330L first-hour capacity and 200L/hour recovery.
Installed Today currently positions the Stellar 330 around six occupants, making it relevant to family homes, townhouses and rental properties where strong gas-storage recovery is required.
Rheem Stellar 360 Natural Gas Hot Water System
The Rheem Stellar 360 provides more stored capacity and first-hour delivery than the Stellar 330.
It combines 160L storage, 360L first-hour capacity and 200L/hour recovery.
It is the stronger current choice for larger households or properties where peak hot-water demand regularly exceeds what the Stellar 330 needs to cover.
Current 5-Star Stellar Models Are Australian Made
Both Rheem Stellar systems currently listed by Installed Today are marked as Made in Australia.
Both use steel storage cylinders and sit within Rheem's premium gas storage range.
Australian manufacture is one product attribute; sizing, recovery, warranty and installation suitability remain more important to actual household performance.
Current 5-Star Collection Uses Natural Gas
Both live systems in this collection are Natural Gas models.
Do not order one of these systems for an LPG property unless a suitable LPG model is specifically listed and confirmed for that application.
Natural Gas and LPG are different fuel configurations and should not be treated as interchangeable products.
5-Star Gas Storage vs 4-Star Gas Storage
5-Star Storage
Prioritises higher gas efficiency and strong recovery within a premium storage configuration.
4-Star Storage
Can provide a lower-cost replacement option where matching an existing conventional gas-storage setup is the main priority.
Compare More Than Stars
Storage volume, recovery, first-hour capacity, dimensions and installed cost can matter as much as the energy rating.
5-Star Gas Storage vs Continuous Flow Gas Hot Water
5-Star Gas Storage
Stores hot water in a tank and uses strong gas recovery to replenish the supply as it is used.
Instant Gas
Heats water as it flows through the appliance and does not store a full tank of heated water.
Replacement Path
Staying with gas storage can be simpler where an external gas storage system is already installed and working well.
Does 5-Star Gas Hot Water Cost Less to Run?
A higher gas-energy rating means the system is designed to use gas more efficiently than a lower-rated comparable gas-storage appliance.
Actual household running cost still depends on hot-water usage, gas pricing, thermostat settings, climate and installation condition.
A 5-Star label should therefore be treated as an efficiency indicator, not as a guaranteed annual dollar saving.
Check Gas Supply Capacity Before Replacement
The existing Natural Gas supply needs to be suitable for the selected appliance and any other gas appliances operating at the property.
Both current Stellar models list a gas input of approximately 42MJ/hour.
Existing pipework, regulator capacity and the gas connection should be checked rather than assumed suitable, particularly where the new unit differs from the existing system.
Rheem Stellar Is Designed for Outdoor Installation
Both current Stellar systems are external gas-storage water heaters.
The proposed installation position needs suitable clearances, safe access, drainage, stable support and compliant gas and water connections.
Do not assume an external gas-storage system can simply be installed inside a cupboard or enclosed internal area.
Stellar 330 vs 360 Physical Size
| Model | Height | Width | Main Replacement Consideration |
|---|---|---|---|
| Stellar 330 | Approx. 1600mm | Approx. 485mm | Smaller height and 130L stored capacity |
| Stellar 360 | Approx. 1900mm | Approx. 485mm | Taller unit with 160L stored capacity |
Replacing an Existing Gas Storage Hot Water System
A 5-Star Stellar system can provide a straightforward upgrade path where the property already uses outdoor Natural Gas storage.
The old tank size alone does not determine the best replacement because Stellar combines relatively compact storage with high recovery.
- Existing gas type
- Existing system type
- Household demand
- Gas pipe capacity
- Regulator capacity
- Water pressure
- Existing valves
- Base condition
- Drainage
- Outdoor clearances
- Connection positions
- Removal access
5-Star Gas Storage for Family Homes
Rheem Stellar systems are designed around strong first-hour capacity and recovery rather than simply using a very large storage tank.
This can suit homes where several people shower within a concentrated period and the system needs to replace hot water quickly as it is used.
The 330 and 360 should still be selected around actual household behaviour rather than occupant count alone.
5-Star Gas Storage for Rental Properties
A Stellar replacement can suit rental properties where gas storage is already installed and changing technologies would add unnecessary work.
The strong recovery can also suit rentals with several occupants and concentrated hot-water use.
Select between 330 and 360 based on realistic tenant demand and the existing installation rather than simply choosing the larger system.
Rheem Stellar Warranty
Both current Stellar models show a maximum 10-year cylinder warranty, subject to Rheem's applicable warranty terms.
Other components and labour can have different warranty periods.
Always check the current warranty documentation for the exact model rather than treating the maximum cylinder period as the warranty on every component.
5-Star Gas Hot Water Systems Brisbane
Brisbane is a primary 5-Star gas-storage installation market for Installed Today. Selected Rheem Stellar systems can be ordered with professional installation in eligible Brisbane, Logan, Ipswich, Moreton Bay and Redlands service areas.
Common Brisbane applications include failed gas-storage replacements, family homes, townhouses and rental properties already connected to Natural Gas.
Final requirements depend on gas supply, pipe sizing, regulator capacity, water pressure, valves, drainage, clearances, access and site conditions.
5-Star Gas Hot Water Systems Gold Coast
Selected Rheem Stellar 5-Star Natural Gas storage systems are also available supplied and installed across eligible Gold Coast service areas.
These systems are most relevant where Natural Gas storage is already installed and the household wants to retain tank-style hot water with strong recovery.
Confirm gas type, gas-supply capacity, household demand and the existing outdoor installation before ordering.
Buy 5-Star Gas Hot Water Systems Across Major Australian Metros
Supply-only 5-Star gas-storage systems are available for customers who already have appropriately licensed plumbing and gas trades arranged across supported mainland Australian markets.
Our main gas hot-water markets include Brisbane, Gold Coast, Sunshine Coast, Sydney, Melbourne, Perth and Adelaide, together with Townsville, Cairns, Toowoomba, Newcastle, Central Coast, Wollongong and Geelong.
Brisbane and Gold Coast remain the primary Installed Today installation markets. Customers elsewhere can choose supply only where delivery is available and arrange their own appropriately licensed installer.
Choose How You Want to Order
Supply Only
Choose supply only if you already have appropriately licensed plumbing and gas trades arranged and simply need the Stellar system supplied.
Installation, valves, disposal, gas work, pipework changes, regulator work and compliance upgrades are not included unless specifically shown.
Brisbane Installation
Selected Stellar systems are available with installation in eligible Brisbane metro service areas.
Availability depends on product, postcode, gas supply, access and site conditions.
Gold Coast Installation
Selected Stellar systems are also available supplied and installed in eligible Gold Coast areas.
Final requirements depend on the selected model and existing gas storage installation.
Choose 5-Star Gas Storage When You Want to Stay with Premium Tank-Style Gas Hot Water
The current collection is deliberately simple: two premium Rheem Stellar Natural Gas storage systems with the same 5-Star rating and 200L/hour recovery, separated mainly by stored capacity and first-hour delivery.
Compare household demand, existing gas storage, gas supply, first-hour capacity, recovery, dimensions, water pressure, warranty, outdoor location and total installation requirements before ordering.
Choose the Stellar 330 where its capacity comfortably covers household demand. Move to the Stellar 360 when the additional storage and first-hour delivery provide a genuine benefit.
5-Star Gas Hot Water System FAQs
Common questions about choosing, ordering and installing premium 5-Star gas storage hot water systems for homes using natural gas or LPG.
What is a 5-Star gas hot water system best suited for?
A 5-Star gas hot water system is best suited to households wanting premium gas storage performance, strong hot water recovery and reliable stored hot water. These systems are commonly chosen for family homes, higher-use households and premium gas storage replacements.
What does 5-Star mean on a gas hot water system?
5-Star refers to the gas energy efficiency rating of the system. A higher star rating generally means the unit is designed to use gas more efficiently than lower-rated gas storage models, while still providing strong stored hot water performance.
What is the difference between the Rheem Stellar 330 and Rheem Stellar 360?
The Rheem Stellar 330 is commonly suited to medium and larger households, while the Rheem Stellar 360 is the larger premium option for higher hot water demand. The best choice depends on household size, shower habits, bathroom count, gas type, available space and existing installation setup.
How many people does a 5-Star gas storage system suit?
Suitability depends on the model, recovery rate, gas supply, shower length, bathroom count and household habits. Premium 5-Star gas storage systems are often chosen for medium to larger households, with larger models better suited to heavier hot water use.
Can I buy a 5-Star gas hot water system supply only?
Yes. Choose supply only if you already have a licensed plumber or gas fitter arranged. Supply-only pricing is for the hot water system only and does not include installation, valves, old unit removal, disposal, gas work, pipework changes, flue work or compliance upgrades unless selected separately.
Can I order a 5-Star gas hot water system supplied and installed?
Yes. Supplied and installed options are available for selected 5-Star gas storage hot water systems in eligible Brisbane and Gold Coast service areas. Availability depends on your location, access, gas type, existing setup, gas compliance requirements and site conditions.
Can I replace my old gas storage system with a 5-Star model?
In many cases, a 5-Star gas storage system can replace an older gas storage unit, but the new system still needs to suit the existing location, gas supply, plumbing connections, clearances, ventilation, drainage and current compliance requirements.
Are 5-Star gas storage hot water systems installed indoors?
Standard external gas storage hot water systems are designed for outdoor installation. Do not assume a gas unit can be installed internally unless it is a manufacturer-approved internal or flued model and the installation meets all required ventilation, flueing and compliance requirements.
Where can a 5-Star gas hot water system be installed?
A 5-Star gas storage system needs a suitable outdoor location with safe access, compliant plumbing, drainage, gas connection, clearances and ventilation. The exact location depends on the model, property setup, gas type and manufacturer installation requirements.
Does installation include gas work?
Gas work is not automatically included unless shown in the selected installation option or chosen as an add-on. Some replacements may require gas compliance checks, regulator work, pipework changes, isolation valves or other work by a licensed gas fitter.
Does installation include old system removal and disposal?
Old system removal and disposal are not automatically included unless shown in the selected installation option or chosen as an add-on. Access, location, tank size, stairs, mounting and site conditions can affect what is required.
Is a 5-Star gas storage system instant?
No. A 5-Star gas storage hot water system heats and stores hot water inside a tank. It is different from an instant gas continuous flow system, which heats water as it passes through the unit. Gas storage systems can still recover quickly, but they are not instant systems.
Do you install 5-Star gas hot water systems in Brisbane and the Gold Coast?
Supplied and installed options are available in eligible Brisbane and Gold Coast service areas. Availability depends on the selected product, your address, gas type, access, existing system and installation requirements.