• Envirosun 20Ltr Endless Series Continuous Flow Gas Hot Water System ES20LNGB

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    Rheem 28Ltrs Ultra Continuous Flow Natural Gas Hot Water Pre-Set 50 Degree 876B28NF
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    • Overview
    • Specifications & manuals
    • Legendary service
    • Delivery, services & returns
    • Questions & answers

    Overview

    The Envirosun Endless Series Continuous Flow Gas Water Heater delivers a seamless hot water experience designed for modern Australian households. Engineered to provide an uninterrupted supply of hot water on demand, this advanced system is equipped with a 6.2-star energy rating that underscores its commitment to energy efficiency and sustainable living. Its robust construction ensures dependable operation across diverse Australian climates, from scorching summers to chilly winters.

    One of the system’s defining qualities is its customisable temperature control, offering 11 preset points ranging between 38°C and 75°C to suit varied household needs. Whether it’s for daily showers, dishwashing, or thorough cleaning, users can easily select the most comfortable and practical setting. WaterServo Technology further enhances convenience by reducing cold water wastage and maintaining a consistent temperature, ensuring instant access to warm water every time the tap is turned on.

    For peace of mind, the unit incorporates advanced FlameSustain Technology, which keeps the system running smoothly despite fluctuations in gas pressure or strong winds. A dual CPU safety system provides intelligent, real-time monitoring to guard against overheating, flameouts, and other potential hazards. Certified to meet Australian Standards and fitted with WaterMark approval, the Envirosun Endless Series stands out as a reliable, high-performance hot water solution tailored to deliver comfort, efficiency, and safety to every home.
    WaterServo Technology

    WaterServo Technology minimises cold water waste by delivering hot water almost instantly. It automatically adjusts flow and pressure to maintain steady temperatures, enhancing both efficiency and user comfort.

    Customisable Temperature Control

    With 11 selectable temperature settings between 38°C and 75°C, this system allows households to tailor hot water delivery precisely to their needs, from gentle warmth for bathing to higher heat levels for cleaning tasks.

    Dual CPU Intelligent Safety System

    A sophisticated dual CPU setup continuously monitors operations, providing layered protection against overheating, gas fluctuations, and unexpected flameouts, so users can trust their system to stay safe and secure.

    FlameSustain Technology

    FlameSustain Technology ensures uninterrupted hot water by adapting the combustion process to handle low gas pressure, variable supply conditions, and harsh weather, keeping performance reliable in all environments.

    Specifications & manuals

    key Specifications
    Brand
    Envirosun
    Model Number
    ES20LNGB
    Height (mm)
    590 mm
    Width (mm)
    370 mm
    Depth (mm)
    210 mm
    Weight (kg)
    19.7 kg
    Finish Colour
    Beige
    Finish Colour Description
    Beige Cabinet Finish.
    Fuel Type
    Natural Gas
    warranty
    Manufacturer Warranty
    3 Years
    Warranty Note
    3 Years on all Parts & Labour, 10 years on the Heat Exchanger.
    Use
    Not intended or designed for commercial use.
    additional Dimensions
    Package Dimensions (H x W x D)
    712 x 425 x 298
    Package Weight (kg)
    22.2
    energy Efficiency
    Energy Star Rating
    6.2
    other Features
    Hot Water Selection
    Continuous Flow
    Flow Per Minute
    20 L
    Temperature Range - Maximum
    75 °C
    Temperature Range - Minimum
    38 °C
    Hot Water Type
    Continuous
    Features
    • Continuous Hot Water Enjoy a steady, uninterrupted supply of hot water whenever you need it, without running out.
    • 6.2-Star Energy Rating Exceptional efficiency helps reduce energy consumption and supports sustainable living practices.
    • Robust Construction Built to withstand Australia’s extreme weather conditions for dependable long-term performance.
    • WaterServo Technology Minimises water wastage and delivers instant hot water with precise temperature control.
    • Custom Temperature Settings: Eleven preset temperature points offer flexibility for all household uses and preferences.
    • Advanced FlameSustain Maintains stable operation even under low gas pressure and fluctuating supply conditions.
    • Dual CPU Safety Intelligent monitoring safeguards against overheating, flameouts, and other operational hazards.
    • Compact Design A streamlined form factor allows for flexible installation in tight spaces around the home.
    • WaterMark Certified Fully compliant with Australian Standards to ensure clean, safe water delivery.
    • Reliable Performance Consistently provides optimal hot water output without compromising efficiency.
    • Temperature Pre-Set: The temperature is set pre-set at 50 degrees. However, your plumber can increase it to a maximum of 75 degrees; however, an optional extra tempering valve supplied by your plumber is required for any water supplied to bathroom areas, which cannot be over 50 degrees maximum.
    electrical Connection
    Type of connection
    10A plug & lead
    Length of cord
    1 m
    country of Origin
    Origin
    China

    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).
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    Wonderful phone service, incredible prices
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    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

    Can it be used on lpg gas instead of natural gas Jason · 2025-08-10
    Hello Thank you for this product question. Sorry, no, this model is only available in Natural gas; however, other brands on our website are available in LP gas that are factory preset for you to purchase. I hope this information will assist you when shopping with us at Appliances Online. Our Sydney-based team is available 24/7 to assist you at Ph: 1300-000-500. Colin Jones, Appliances Online
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