• Rinnai Infinity 12 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF12N50B

    $1,433
    $150 (9%) off RRP of $1,583
    $150 (9%) off RRP of $1,583

    Rinnai Infinity 12 Continuous Flow Natural Gas Hot Water Pre-Set 50 Degrees INF12N50B

    $1,433
    $150 (9%) off RRP of $1,583
    $150 (9%) off RRP of $1,583
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    4 payments of $358.25 with
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    text: Natural Gas 50 Degrees
    • Overview
    • Specifications & manuals
    • Legendary service
    • Delivery, services & returns
    • Questions & answers

    Overview

    The Rinnai Infinity B12 Gas Continuous Flow Hot Water System is expertly engineered to deliver reliable, energy-efficient hot water for single-bathroom households. With a compact and slimline design, it offers a space-saving solution that doesn’t compromise on performance or convenience. Designed specifically for Australian conditions, the Infinity B12 ensures a steady and consistent supply of hot water, regardless of variations in water flow or ambient temperature.

    Operating with high efficiency, the B12 only consumes energy when a tap is turned on—making it an ideal choice for eco-conscious users looking to lower their utility bills and environmental impact. Its 6.2-star equivalent energy rating underscores its superior performance, setting a benchmark as the most efficient 12-litre continuous flow system on the market.

    Built with user comfort and safety in mind, the Infinity B12 includes advanced features such as Puretemp stability control for consistent water temperature, precise digital temperature display, and robust safety monitoring. It's compatible with low-flow fixtures and supports both natural gas and LPG models, giving users greater flexibility based on installation needs.

    Whether you're upgrading your current system or installing in a new home, the B12 integrates seamlessly and offers the option to add smart hot water controllers for even more convenience. With quality Japanese engineering and a strong track record for durability, the Infinity B12 provides dependable hot water delivery in a compact and intelligent package.
    Compact Space-Saving Design

    Built with modern homes in mind, the Compact, Space-Saving Design ensures easy installation in smaller outdoor or utility spaces. Despite its slim profile, the system delivers full performance, providing reliable hot water without taking up unnecessary room or limiting installation flexibility.

    Precise Temperature Control

    Enjoy greater safety and comfort with Precise Temperature Control, featuring an intuitive digital display and easy-to-use interface. This smart function allows households to set exact water temperatures, reducing risks of scalding while providing consistently comfortable hot water tailored to individual needs.

    Puretemp Technology

    Engineered for comfort, Puretemp Technology keeps water temperature steady even when flow rates vary. This advanced system eliminates sudden fluctuations, delivering a smooth and consistent hot water experience every time, ensuring safety, reliability, and comfort across all household uses.

    Optional Hot water Controllers

    Enhance convenience with Rinnai’s BC145 and MC145 controllers, designed to give precise fingertip control over water temperature. Ideal for bathrooms or kitchens, these user-friendly units improve safety, comfort, and efficiency by allowing tailored temperature settings for different household needs.

    Specifications & manuals

    key Specifications
    Brand
    Rinnai
    Model Number
    INF12N50B
    Height (mm)
    531 mm
    Width (mm)
    351 mm
    Depth (mm)
    202 mm
    Weight (kg)
    13 kg
    Finish Colour
    White
    Finish Colour Description
    Off White Cabinet Finish.
    Fuel Type
    Natural Gas
    Notes
    ** A 10-amp outside waterproof power point is required to operate the electronic ignition**
    warranty
    Manufacturer Warranty
    3 Years
    Use
    Not intended or designed for commercial use.
    additional Dimensions
    Package Dimensions (H x W x D)
    685 x 445 x 280
    Package Weight (kg)
    15
    energy Efficiency
    Energy Star Rating
    6.2
    other Features
    Hot Water Selection
    Continuous Flow
    Temperature Range - Maximum
    50 °C
    Hot Water Type
    Continuous
    Features
    • 6.2-Star Equivalent Efficiency: One of the most energy-efficient 12L systems available, reducing energy use and emissions.
    • Ideal for Single Bathroom Homes: Designed specifically to meet the hot water demands of one-bathroom households.
    • Continuous Flow Technology: Ensures hot water is always available whenever it's needed, without running out.
    • Puretemp Temperature Stability: Delivers consistent water temperature for added comfort and safety.
    • Compact Outdoor Unit: Slim dimensions allow flexible installation in space-restricted areas.
    • Digital Temperature Display: Offers precise control over hot water settings and usage.
    • LPG and Natural Gas Compatible: Available in models suited for different gas types to match your setup.
    • Durable Australian Build: Built tough to handle local climate conditions with reliability.
    • Optional Water Controllers: Upgrade-ready for enhanced convenience and smart control options.
    • Trusted Rinnai Quality: Backed by Japanese engineering and decades of performance excellence.
    electrical Connection
    Type of connection
    10A plug & lead
    Length of cord
    1 m
    country of Origin
    Origin
    Japan

    Legendary service

    The Appliances Online Net Promoter Score (NPS) is based on feedback from 89,897 people, collected between August 2024 to August 2025. Learn more about the Net Promoter Score (NPS).
    Bravo Appliances Online BRAVO!!!
    Paul , Lane Cove
    Customer service is outstanding
    Caroline, Mosman
    A big thumbs up from me!
    Elizabeth, Pakenham, VIC

    Delivery, services & returns

    Appliances Online is all about legendary service. We offer free next business day delivery, free connection, free removal and free recycling, and we even offer Saturday delivery and, in some locations, a Premium Delivery option that allows you to choose your own 2-hour delivery window.

    Questions & answers

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    We're here to help 24/7 - for an immediate answer to your question, chat with one of our Live Chat agents below or call us on 1300 000 500 .

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