RHEEM 26L NATURAL GAS CONTINUOUS FLOW HOT WATER
Rheem 26L Natural Gas Continuous Flow Hot Water System 50°C – 876A26NF
The Rheem 26L Natural Gas Continuous Flow Hot Water System 50°C is a compact outdoor water heater designed for medium to larger households wanting higher-capacity continuous-flow hot water without a storage cylinder.
The 876A26NF is the Natural Gas version of Rheem's 26L 50°C continuous-flow water heater. It provides 26 L/min nominal hot-water delivery at a 25°C temperature rise, a 6 Star energy rating, a 50°C factory preset outlet temperature and nominal gas consumption of 199 MJ/hr.
Installed Today offers the Rheem 26L Natural Gas as a supply-only gas water heater or with supply and installation across eligible Brisbane and Gold Coast service areas.
Rheem 26L Natural Gas at a glance: model 876A26NF, 26 L/min continuous-flow capacity at a 25°C rise, 50°C factory preset outlet temperature, 6 Star energy rating, 199 MJ/hr nominal gas consumption, outdoor-only installation, 120 kPa minimum water supply pressure, 1000 kPa maximum water supply pressure, compact wall-mounted dimensions and up to 12 years heat-exchanger parts coverage for qualifying domestic installations.
ABOUT THE SYSTEM
About the Rheem 26L Natural Gas Continuous Flow Water Heater
The Rheem 26L heats water as it passes through the appliance rather than storing a cylinder of hot water.
When a hot-water outlet is opened, the continuous-flow unit operates to heat incoming water while demand is present. This makes it a practical alternative to gas storage where a compact wall-mounted outdoor appliance is preferred.
The 26L model provides greater nominal flow capacity than Rheem's smaller continuous-flow models and is intended for homes with higher hot-water demand.
IMPORTANT GAS TYPE
876A26NF Is the Natural Gas Model
This page covers the Rheem 876A26NF Natural Gas model only.
The appliance must be connected to a suitable Natural Gas supply and correctly sized gas pipework. The Natural Gas and propane versions are separately configured appliances and should not be treated as interchangeable.
Confirm the property's gas type before ordering, particularly where an existing gas water heater is being replaced.
WHO IT SUITS
Who Is the Rheem 26L Natural Gas Best For?
Medium to Larger Homes
The 26L model provides higher nominal flow capacity than Rheem's smaller 16L and 20L continuous-flow options.
Higher Hot-Water Demand
Rheem's current sizing information places the 26L around the two to 2.5 bathroom category, subject to climate and simultaneous fixture demand.
Natural Gas Replacements
The 876A26NF can suit replacement of an existing outdoor Natural Gas continuous-flow system where the gas supply, water pressure, pipework and installation position are compatible.
PRODUCT AT A GLANCE
Rheem 26L Natural Gas Key Details
26 L/min
At 25°C Rise
6 Star
Energy Rating
199 MJ/hr
Gas Consumption
50°C
Factory Preset
FLOW PERFORMANCE
What Does 26 L/min Mean?
Rheem rates the 26L continuous-flow water heater at 26 litres per minute with a 25°C temperature rise.
The available flow at household fixtures depends on the difference between the incoming cold-water temperature and the required hot-water temperature. A larger required temperature rise reduces the amount of water that can be heated each minute.
Water pressure, gas supply, pipe sizing, fixture flow rates and simultaneous use also affect real-world performance.
BATHROOM SIZING
How Many Bathrooms Can the Rheem 26L Supply?
Rheem's current product information places the 26L model around the 2 to 2.5 bathroom category.
This is a sizing guide rather than a guarantee that every shower, basin or appliance can operate simultaneously at full flow.
Incoming water temperature, shower flow rates, water pressure, Natural Gas supply and household usage all need to be considered when selecting the system.
50°C MODEL
Factory Preset to 50°C
The Rheem 876A26NF is the 50°C factory preset version of the 26L continuous-flow water heater.
The temperature-limited model is intended for domestic hot-water applications where a maximum 50°C outlet setting is appropriate.
Rheem's 26L plumber information identifies the 50°C 876A26 model as not requiring a separate tempering valve in the normal configuration. Final temperature-control requirements still depend on the installation, plumbing arrangement and applicable compliance requirements.
Rheem also offers a separate higher-temperature 60°C model. The 50°C and 60°C versions should not be treated as interchangeable.
RHEEM TECHNOLOGY
Rheem Q Factor™ & FlameSafe® Protection
Rheem Q Factor™
Rheem describes Q Factor™ as technology designed to provide rapid hot water while reducing temperature fluctuations during continuous-flow operation.
FlameSafe® Protection
FlameSafe® overheat protection is designed to shut the water heater down before an overheating condition develops.
TECHNICAL DETAILS
Rheem 26L Natural Gas 50°C Specifications
| Specification | Rheem 26L Natural Gas |
|---|---|
| Brand | Rheem |
| Product | 26L Gas Continuous Flow Water Heater 50°C |
| Model Family | 876A26 |
| Natural Gas Model | 876A26NF |
| Gas Type | Natural Gas |
| System Type | Gas continuous-flow water heater |
| Installation | Outdoor only |
| Factory Preset Temperature | 50°C |
| Nominal Flow Capacity | 26 L/min at a 25°C temperature rise |
| Bathroom Sizing Guide | Approximately 2 to 2.5 bathrooms depending on conditions and demand |
| Energy Rating | 6 Star |
| Nominal Gas Consumption | 199 MJ/hr |
| Minimum Water Supply Pressure | 120 kPa |
| Maximum Water Supply Pressure | 1000 kPa |
| Cold Water Connection | R 3/4 |
| Hot Water Connection | R 3/4 |
| Gas Connection | R 3/4 |
| Approximate Empty Weight | 16kg |
| Heat Exchanger Warranty | 12 years parts and 3 years labour for qualifying domestic installations, subject to Rheem warranty terms |
| Other Domestic Components | 3 years parts and labour, subject to Rheem warranty terms |
DIMENSIONS
Rheem 26L Natural Gas Dimensions
519mm
Body Height
355mm
Width
188mm
Depth
16kg
Approx. Empty Weight
The compact wall-mounted body makes the Rheem 26L significantly smaller than a conventional storage water heater, but additional space is still required below and around the appliance for gas, water, power connections, clearances and servicing.
OUTDOOR INSTALLATION
The Rheem 26L Natural Gas Is Outdoor Only
The 876A26NF is designed for outdoor installation.
The appliance must be mounted securely in a compliant position with suitable access for servicing and adequate clearance around the flue terminal and air inlet.
It should not be treated as an indoor instantaneous gas water heater or installed in an enclosed internal space.
INSTALLATION POSITION
Flue Clearances & Wall Location Matter
The outdoor location must comply with Rheem's current installation requirements and applicable gas-installation rules.
Windows, doors, eaves, corners, boundaries, walls and other obstructions can affect whether a proposed installation position is suitable.
A licensed installer should check the proposed location before relocation or installation into a new position rather than assuming any available external wall is acceptable.
NATURAL GAS SUPPLY
Gas Pipe Sizing Is Important on a 199 MJ/hr Appliance
The Rheem 26L has a nominal gas consumption of 199 MJ/hr, so the existing gas supply and pipework must be capable of supplying the appliance under operating load.
This can be particularly important where the property also has gas cooking, heating or other appliances sharing the same supply.
The licensed gas fitter must assess meter capacity, pipe length, pipe diameter and the total connected gas load when confirming installation suitability.
WATER PRESSURE
Rheem 26L Water Pressure Requirements
Rheem specifies a minimum water supply pressure of 120 kPa for the 26L model and a maximum water supply pressure of 1000 kPa.
Low or inconsistent water pressure can affect available fixture flow and continuous-flow performance.
Where incoming mains pressure exceeds the permitted limit, the installation will require suitable pressure control in accordance with the manufacturer's requirements.
POWER REQUIREMENT
A Gas Continuous Flow System Still Requires Electricity
The Rheem 26L uses Natural Gas to heat the water but also requires electrical power for its electronic controls, ignition and operating systems.
The proposed outdoor position must therefore have a suitable electrical supply as well as compatible gas and water services.
Electrical suitability should be checked as part of the installation assessment, particularly when replacing an older gas storage water heater that may not have required the same nearby power arrangement.
TEMPERATURE CONTROLLERS
Optional Kitchen & Bathroom Controllers
Rheem lists optional remote temperature-controller configurations for the 26L continuous-flow range.
Kitchen Controller
A compatible Rheem controller can provide user temperature control from the kitchen.
Bathroom 1 Controller
A compatible bathroom controller can provide convenient temperature control at a bathroom location.
Bathroom 2 Controller
A second compatible bathroom controller can be included where the approved controller arrangement allows it.
Controller compatibility, wiring and the permitted temperature range should be confirmed for the exact installation before ordering accessories.
ACCESSORIES
Rheem 26L Accessory Options
Pipe Cover
Rheem lists a compatible pipe cover for installations where concealment of the connections below the water heater is preferred.
Recess Box
A compatible Rheem recess box is available for approved recessed wall installations.
Security Cage
A security cage is available as an optional accessory for selected installations.
Wall Mount Security Kit
Rheem also lists a wall-mount security kit within the accessory range.
INSTALLATION REQUIREMENTS
What Is Required to Install the Rheem 26L Natural Gas?
The water heater requires professional gas, plumbing and electrical assessment and installation appropriate to the property and current compliance requirements.
- Correct 876A26NF Natural Gas model
- Property connected to Natural Gas
- Outdoor-only compliant wall location
- Suitable flue-terminal clearances
- Secure wall mounting and service access
- Gas supply capable of supporting 199 MJ/hr
- Correctly sized Natural Gas pipework
- R 3/4 gas connection
- R 3/4 hot and cold water connections
- Minimum 120 kPa water supply pressure
- Pressure control where water pressure exceeds permitted limits
- Suitable water isolation valves and pipework
- Compatible electrical supply
- Controller wiring where optional controllers are selected
- Access for future servicing and fault diagnosis
20L VS 26L
Rheem 20L vs 26L Continuous Flow
The key difference is nominal flow capacity. Rheem's 20L model provides approximately 20 L/min at a 25°C rise, while the 26L model provides 26 L/min at the same temperature rise.
The higher-capacity 26L can therefore better suit properties with greater simultaneous hot-water demand, provided the gas supply, water pressure and pipework can support it.
A larger model should not be selected on flow rate alone. Correct gas-pipe sizing and household demand are important because the 26L also has a higher gas input requirement.
50°C VS 60°C
Rheem 26L 50°C vs 60°C
50°C 876 Series
The 876A26 is factory configured as the 50°C temperature-limited model and can simplify domestic delivery-temperature requirements in suitable installations.
60°C 874 Series
The separate higher-temperature model can deliver hotter water and may require additional temperature-limiting equipment for personal-hygiene outlets.
Select the model required for the property's plumbing layout and compliance requirements rather than assuming the two temperature versions are interchangeable.
SUPPLY ONLY
Buy the Rheem 26L Natural Gas Supply Only
Choose supply only if you require the Rheem 876A26NF and already have an appropriately licensed gas fitter or plumber arranged.
The supply-only price covers the water heater itself. Installation, gas fitting work, gas pipe alterations, water valves, electrical work, plumbing changes, controller accessories, old-system removal and disposal are separate unless specifically included in the order.
Before ordering, confirm that the property uses Natural Gas and that the gas supply, water pressure, electrical requirements and outdoor installation position are suitable.
SUPPLY & INSTALL
Rheem 26L Natural Gas Supplied & Installed
Supply Only
Order the 876A26NF where compliant licensed gas, plumbing and electrical installation are already arranged.
Brisbane Installation
Eligible Brisbane customers can check supply-and-install options for replacement of a compatible outdoor Natural Gas water heater.
Gold Coast Installation
Eligible Gold Coast customers can also check installation options including gas pipe sizing, water pressure, wall position, electrical suitability and clearances.
BRISBANE INSTALLATION
Rheem 26L Natural Gas Installation Brisbane
Eligible Brisbane customers can order the Rheem 26L Natural Gas with a local installation option where available.
A compatible replacement is generally more straightforward where the existing appliance is already an outdoor Natural Gas continuous-flow system and the gas pipework, water connections, power provision and flue clearances remain suitable.
The appliance body is approximately 519mm high × 355mm wide × 188mm deep, but sufficient additional installation and service clearance is still required.
GOLD COAST INSTALLATION
Rheem 26L Natural Gas Installation Gold Coast
Eligible Gold Coast customers can also check supplied-and-installed options for the Rheem 26L Natural Gas.
Before installation, confirm the property uses Natural Gas and check the gas meter and pipe capacity, water pressure, plumbing, power supply, wall location, flue clearance and removal requirements for the existing system.
WHAT MAY REQUIRE EXTRA WORK
Check These Items Before Ordering Installation
- Changing from LPG to Natural Gas
- Relocating the water heater
- Undersized gas pipework
- Gas meter or supply-capacity limitations
- Old or non-compliant water valves
- Additional hot or cold water pipework
- Low or excessive water pressure
- Electrical outlet or power changes
- Controller installation or wiring
- Non-compliant flue-terminal location
- Wall mounting or recess-box work
- Restricted delivery or servicing access
- Additional temperature-control requirements
- Removal and disposal of the existing water heater
WARRANTY
Rheem 26L Natural Gas Warranty
For qualifying domestic installations, Rheem lists the 26L continuous-flow range with 12 years parts coverage and 3 years labour coverage on the heat exchanger, plus 3 years parts and labour on other components.
| Component | Domestic Warranty Summary |
|---|---|
| Heat Exchanger | 12 years parts coverage, with 3 years labour coverage, subject to Rheem warranty conditions |
| Other Components | 3 years parts and labour, subject to Rheem warranty conditions |
| Other Installation Types | Different warranty periods apply; refer to Rheem's complete current warranty terms |
Warranty coverage depends on the application, installation and complete Rheem warranty terms. A headline 12-year warranty should not be interpreted as 12 years of labour coverage on the entire appliance.
COMMON QUESTIONS
Questions About the Rheem 26L Natural Gas 50°C
What is the Rheem 26L Natural Gas model number?
The 50°C Natural Gas model is 876A26NF.
Is this model Natural Gas or LPG?
This page covers the Natural Gas version. The propane model is a separately configured appliance.
What is the flow rate?
Rheem publishes 26 L/min at a 25°C temperature rise.
How many bathrooms is the Rheem 26L suitable for?
Rheem's current sizing information places the unit around 2 to 2.5 bathrooms, depending on climate, water pressure, fixture flow rates and simultaneous demand.
What is the energy rating?
The Rheem 26L has a 6 Star gas energy rating.
What is the nominal gas consumption?
Rheem specifies 199 MJ/hr.
Can the Rheem 26L Natural Gas be installed indoors?
No. The unit is designed for outdoor installation.
What is the minimum water pressure?
Rheem specifies a minimum water supply pressure of 120 kPa.
What is the maximum water pressure?
Rheem specifies a maximum water supply pressure of 1000 kPa.
What size water connections does it use?
The hot and cold water connections are R 3/4.
What size gas connection does it use?
The gas connection is R 3/4.
What are the dimensions?
The appliance body is approximately 519mm high × 355mm wide × 188mm deep.
How much does it weigh?
Rheem's 26L plumber information lists an approximate empty weight of 16kg.
What does the 50°C model mean?
The Rheem 876 series is the factory 50°C temperature-limited version of the continuous-flow range.
Does the 50°C model need a tempering valve?
Rheem's plumber information identifies the 876A26 50°C model as requiring no tempering valve in the normal configuration. Final installation requirements depend on the plumbing arrangement and applicable rules.
Does the Rheem 26L require electricity?
Yes. The appliance requires electrical power for its electronic operating systems even though Natural Gas provides the heat.
Can temperature controllers be fitted?
Yes. Rheem lists compatible kitchen and bathroom remote temperature-controller options for approved installations.
What accessories are available?
Rheem lists options including a pipe cover, recess box, security cage and wall-mount security kit.
Is it suitable for replacing an existing Natural Gas water heater?
It can be, where the outdoor location, gas supply, gas pipe sizing, water pressure, plumbing, power and clearances suit the Rheem 26L.
What is the difference between the Rheem 20L and 26L?
The 26L has higher nominal flow capacity, making it better suited to greater simultaneous demand where the installation services can support the larger appliance.
What is the difference between the 50°C and 60°C versions?
The 50°C model is factory temperature-limited, while the separate 60°C model can deliver hotter water and may require additional temperature-limiting equipment for personal-hygiene outlets.
What is the warranty?
For qualifying domestic installations, Rheem lists 12 years parts and 3 years labour on the heat exchanger plus 3 years parts and labour on other components, subject to full warranty conditions.
Can I buy the Rheem 26L Natural Gas supply only?
Yes. Installed Today offers a supply-only pathway where compliant licensed installation is already arranged.
Can Installed Today install the Rheem 26L Natural Gas?
Supply-and-install options are available in selected Brisbane and Gold Coast service areas. Final requirements depend on Natural Gas availability, gas pipe capacity, water pressure, plumbing, power, wall location, clearances and site compliance.
WHY INSTALLED TODAY
Why Order the Rheem 26L Natural Gas From Installed Today?
Supply Only
Unit Ordering
26 L/min
Continuous Flow
50°C
Preset Model
Brisbane & Gold Coast
Installation Options
Installed Today provides a clear pathway to order the Rheem 26L Natural Gas as a product-only purchase or combine it with an eligible local installation option. Confirm gas type, gas pipe sizing, water pressure, electrical requirements, outdoor clearances, access and old-system removal requirements before checkout.
FINAL CHECK
Is the Rheem 26L Natural Gas 50°C Right for You?
The Rheem 876A26NF is suited to properties wanting a compact outdoor Natural Gas continuous-flow water heater with higher flow capacity, a factory 50°C outlet setting and Rheem's 6 Star continuous-flow platform.
Before ordering, confirm that the property uses Natural Gas, that the gas supply and pipework can support the 199 MJ/hr appliance, that mains water pressure is adequate and that a compliant outdoor wall position with suitable clearances and power is available. Choose supply only where licensed installation is already arranged, or check Installed Today's Brisbane and Gold Coast installation options.
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.
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Supply Only or Optional Installation
Choose the product on its own, or add installation where available on selected products and in eligible service areas. This gives you the flexibility to order the way that suits you best.
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Common Installation Add-Ons Available
Where relevant, you can add common installation extras such as valve kits, bases, access-related items, removal, electrical options or other site-specific upgrades before checkout.
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Important Installation Note
Installation availability, inclusions and add-ons vary by product type, service area, site access, existing services, selected options and property requirements.
Some jobs may require additional work, upgrades or checks before installation can proceed. Final suitability may need to be confirmed based on site conditions, plumbing, electrical requirements, valves, drainage, access and compliance requirements.
Supply-only orders do not include installation, old unit removal, disposal, valve kits, electrical work, plumbing alterations or compliance upgrades unless these are clearly selected or included in your order.
Fast Delivery and Install-Aligned Shipping
Installed Today makes delivery simple, whether you are ordering supply-only or choosing an optional install package.
For supply-only orders, you can select from available delivery options at checkout. For eligible orders with installation selected, shipping is included and coordinated to align with your selected installation period where possible.
Delivery Options
Same Day Delivery
Same day delivery may be available for selected hot water systems in Brisbane and Gold Coast metro areas when ordered before 7:00am.
Availability depends on stock, courier capacity, delivery location, product type and safe transport conditions.
Express Delivery
Express delivery is available on selected products and locations, with an estimated delivery timeframe of 1–4 business days.
Standard Delivery
Standard delivery is available on selected products, with an estimated delivery timeframe of 2–8 business days.
Free Shipping with Installation
When you select an eligible installation package, delivery is included as part of the supplied and installed order.
Your product delivery will be organised to align with your selected installation period where possible, helping avoid separate courier timing, storage issues or delays between delivery and installation.
Fast Metro Delivery
Most hot water orders in metro areas are delivered quickly, with many arriving within 1 business day depending on stock, location, order time and courier availability.
Weather and Transport Delays
Hot water systems are large, heavy products and cannot always be transported safely during rain or unsafe handling conditions.
Delivery timeframes may be affected if wet weather impacts loading, unloading, transport access or safe delivery conditions.
Express Delivery Refund
If your express delivery order takes longer than the estimated 1–4 business day express timeframe, your order will move to the standard 2–8 business day delivery timeframe and your express shipping charge will be refunded automatically.
Order Tracking
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For supplied and installed orders, delivery timing may be coordinated around your selected installation period rather than sent as a separate courier-only delivery.
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