Rheem Heavy Duty Gas 265L Indoor
SunCity Hot Water supplies, installs and services the Rheem Heavy Duty Gas 265L Indoor across the Sunshine Coast, Brisbane, Bribie Island and Gympie — backed by our quality workmanship guarantee. Call 1300 728 122.
Ready to upgrade your hot water experience? Contact SunCity Hot Water today for expert advice, product details, and installation scheduling. Experience reliable and efficient hot water with the Rheem Heavy Duty Gas 265L Indoor water heater.

Key Features
Multi-Fin™ Technology for Efficient Heating
The Rheem 265L incorporates advanced Multi-Fin™ technology to maximise heat transfer for faster and more efficient water heating. This ensures hot water is delivered quickly and reliably, making it ideal for busy households with multiple showers or high simultaneous demand.
Digital Adjustable Thermostat for Sanitisation
Equipped with a digital thermostat, the unit allows temperature settings up to 82°C, suitable for sanitisation purposes. This helps maintain hygiene standards by reducing the risk of harmful bacteria in your hot water system.
Hot Surface Ignition for Energy Efficiency
The Rheem 265L uses Hot Surface Ignition technology, removing the need for a constantly burning pilot light. This improves energy efficiency, reduces gas consumption, and lowers operating costs without compromising hot water reliability.
Product Documents

Unmatched Performance and Recovery Rate
The water heater has a gas input of 110 MJ for Natural and SNG gas, 100 MJ for Propane, and 95 MJ for Butane. It provides an hourly recovery of 420 L with Natural and SNG gas, 380 L with Propane, and 365 L with Butane. With a 50°C temperature rise, this ensures a continuous supply of hot water even during periods of peak demand.

Factory Assembled and Tested for Quality
The Rheem 265L is factory-assembled and rigorously tested to meet high standards of quality and durability, providing peace of mind for homeowners.

Enhanced Safety Features
Advanced gas controls include an over-temperature energy cut-off switch and a 100% safety shutdown system, protecting against thermostat malfunctions and ensuring safe operation.
Installation, Maintenance & Warranty
Installation

Rheem Heavy Duty Gas water heaters are available in multiple sizes and for both indoor and outdoor installation. Indoor models can be flued individually or combined into a standard flue, offering flexibility for different building requirements.
Maintenance

Regular maintenance is recommended to ensure optimal performance. This includes inspection of anodes, gas controls, and servicing the ignition system to maintain efficiency and safety.
Warranty
The water heater is covered by a 5-year commercial warranty on the cylinder and a 12-month warranty on parts and labour.
Frequently Asked Questions
What is the Equa-Flow® system, and how does it benefit installation?
The Equa-Flow® system enables flexible installation and efficient water distribution, ensuring your hot water system meets household needs without compromising performance.
Can the Rheem Heavy Duty Gas 265L be integrated with a Building Management System (BMS)?
Yes, it includes built-in capability for BMS integration, allowing efficient monitoring and control of hot water supply—ideal for commercial or larger-scale applications.
What are the installation options for Rheem Heavy Duty Gas water heaters?
Indoor models can be individually flued or connected to a standard flue. Multiple sizes and flexible layouts accommodate different spaces and plumbing requirements.
Is gas hot water cheaper than electric?
Gas hot water is often cheaper to run than peak-rate electricity, particularly for larger households. Continuous-flow gas only heats water on demand, avoiding the standby heat loss of a storage tank. Actual running costs depend on your gas rates and usage.
How does gas hot water work?
A gas hot water system burns natural gas or LPG to heat your water — either instantly as it flows through a continuous-flow (tankless) unit, or stored in a heated tank ready for use.
How long do gas hot water systems last?
Gas hot water systems typically last around 10–12 years with regular servicing. Continuous-flow units often last longer than storage models.
What size gas hot water system do I need?
Continuous-flow gas systems are sized by flow rate (litres per minute) based on how many hot water outlets run at once; gas storage systems are sized by tank capacity. SunCity will match the right unit to your household's peak demand.
How much does it cost to install a hot water system?
SunCity Hot Water quotes all-inclusive pricing — supply, installation by licensed plumbers and electricians, tempering and pressure-relief valves, removal of the old unit, QBCC fees and GST — with no hidden extras. Call 1300 728 122 for a fast quote.
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