• Rinnai EnergySaver Flued Natural Gas Heater K309FTSN

    $2,779

    Rinnai EnergySaver Flued Natural Gas Heater K309FTSN

    $2,779
    Add to Wishlist
    4 payments of $694.75 with
    Or  Own it from $106.97 weekly for 6 months*
    Choose an optional Customer Care Plan
    • Overview
    • Specifications & manuals
    • Legendary service
    • Delivery, services & returns
    • Questions & answers

    Overview

    Rinnai's EnergySaver range features the Energysaver 309FT, which is their smallest model. Its compact size makes it a great fit for smaller rooms as it can fit into even the tightest spaces. Additionally, it boasts a room sealed power flue system with zero emissions, making it a suitable option for those with allergies or respiratory issues. The model also comes equipped with an inbuilt humidifier tray for added comfort, as well as full electronic thermostatic control, dual digital timers, preheat and economy modes, and a child lock to prevent unauthorized access.

    Specifications & manuals

    key Specifications
    Brand
    Rinnai
    Finish Colour
    White
    Height (mm)
    695 mm
    Width (mm)
    465 mm
    Depth (mm)
    257 mm
    Model Number
    K309FTSN
    Fuel Type
    Natural Gas
    Castors
    No
    Weight (kg)
    26 kg
    Accessories included
    Flue kit (ESDFK) included. * Installation not included.
    warranty
    Manufacturer Warranty
    5 Years
    Use
    Not intended or designed for commercial use.
    additional Dimensions
    Package Dimensions (H x W x D)
    770 x 562 x 370mm
    Package Weight (kg)
    28
    functions
    Plugin convenience
    Eco Mode
    energy Efficiency
    Energy Star Rating
    4.8
    other Features
    Heater Type
    Gas Heater
    Adjustable Temperature
    Timer
    Features
  • ● Zero emissions - perfect for those with allergies or respiratory problems
  • ● Inbuilt humidifier tray - for greater comfort
  • ● Pre-heat mode - pre-heats the room up to 1 hour prior to set programmed time
  • ● Digital temperature / Time display
  • ● Clean filter light
  • ● Economy mode - reduces running costs
  • ● Dual digital timers provide on and off programming for mornings and evenings
  • ● Low emissions technology
  • ● Electronic thermostatic control
  • ● Child lock or lock button
  • ● Flame failure turns gas off if flame goes out
  • ● In the event of a power failure or power cut, the gas valves will automatically close
  • ● Over-heat switch - when the heater gets too hot during operation, this device turns the gas off automatically
  • electrical Connection
    Type of connection
    10A plug & lead
    Length of cord
    2 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).
    always pleased with the service
    Kennedy, Elwood
    Informative, and easy to use
    Graham, Logan City, QLD
    Seriously amazing service
    Charles, Paddington, NSW

    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

    No-one has asked a question about this product yet. Want to be the first?
    I agree to the terms & conditions
    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 .

  • When you need to replace a broken heating or cooling system, want to upgrade for better features or need a different size due to new household needs, having a reliable partner like Appliances Online is essential. The sheer number of choices and specifications can make shopping for new home essentials overwhelming. That's why we want to transform your shopping experience into an easy, stress-free one so you don't have to step out of your home to find the right replacement. We're Australia's largest online retailer of appliances and home essentials, offering more than 8,000 different products from top brands. With this wide selection, you have the freedom to find what meets your needs and preferences. We know how valuable your time and money are, so we ensure added value comes with each purchase. At Appliances Online, you can find exactly what you need, whether it's products like Rinnai EnergySaver Flued Natural Gas Heater K309FTSN or any other essential item. We are devoted to supporting you in making informed decisions so you can shop confidently. We are committed to customer satisfaction, ensuring your shopping experience remains as seamless as possible.

    Sometimes, the ideal heating or cooling product that suits both your budget and household needs can seem impossible to find. Whether you're searching for Rinnai Fully Recessed Box RBOX02 or Rheem 511325 Loline 325L Solar Hot Water System, Appliances Online appreciates why it's important to keep this process easy and convenient. With so many products to choose from, you can avoid stressing about options, pricing or specifications. Among our services is our Price Match Guarantee*, which promises that if you find a lower price for the same item from an Approved Retailer, you can contact our helpful customer service team and we'll verify it for price matching. At Appliances Online, we make your shopping experience seamless, even if you're looking at items like Turner Hastings Cuisine 46 Sink Pack with Brushed Brass Naples Pull Out Mixer Tap and Accessories PKG045, Sealy King Advantage Base Charcoal 907103 or something else. With our legendary service, you won't need to sort through the wide product range on your own. From expert advice to smooth online ordering, we're here to help you find the right product without any hassle. With our comprehensive product range, reliable support and services designed to make your life easier, you can trust that Appliances Online will provide great value and top-notch convenience every time. Whatever your preferences for heating or cooling products, we're here to provide all the details that make for a confident purchase.

    If you're shopping for a new heating or cooling appliance or another home essential, Appliances Online makes it easy to start with a quick check by filling in your postcode or suburb to see if you're in our delivery area. Whenever you need help, our Sydney-based customer service team is available to assist you 24/7, every single day of the year. Simply call 1300 000 500, and one of our friendly team members will address any questions you might have. We're proud to offer Free, Next Day Delivery* for in-stock items, covering 95% of Australia's population, so whether you're interested in items from our Heating & Cooling category or something else, we can usually have your purchase at your door the very next day (Monday to Friday). In areas where we deliver with our own trucks, we also provide Free Connection for select fridges, microwaves, dryers and washing machines, so you can enjoy your new purchase without the stress of setup. Appliances Online also offers free recycling for your old appliances - just select this option at checkout. Whether you're browsing our Andoo category, BBQs & Outdoor Living page or a different collection, we're committed to making your shopping experience as smooth as possible, so shop now and enjoy the convenience of fast, reliable service.