• Delonghi Dragon4 Electric Oil Column Heater TRD42400ET

    $373
    $106 (22%) off RRP of $479
    $106 (22%) off RRP of $479

    Delonghi Dragon4 Electric Oil Column Heater TRD42400ET

    $373
    $106 (22%) off RRP of $479
    $106 (22%) off RRP of $479
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    • Overview
    • Specifications & manuals
    • Reviews
    • Legendary service
    • Delivery, services & returns
    • Questions & answers

    Overview

    De’Longhi’s Oil Column Heaters, with their tunnel construction design, ensure exceptional heating efficiency and performance. The unique setup features electric elements immersed in oil, producing radiant and convective heat that is not only effective but also enduring. This method guarantees a long-lasting warmth, making these heaters a standout choice for maintaining a comfortable room temperature.

    The Dragon 4 model, in particular, showcases an exclusive fin design that significantly enhances the heater's radiant surface. This design promotes a chimney effect, which accelerates airflow and ensures even heat distribution throughout the room. The result is powerful warmth that transforms any space into a cosy haven.

    Moreover, De’Longhi has integrated smart technology into these heaters to allow for efficient consumption and customisable comfort. The ECO Plus function optimises energy use by adjusting the heating output to the current room temperature, providing a greener solution to home heating. The user-friendly digital LED panel offers complete control over the heater’s operations, including temperature setting, power levels, and a 24-hour timer, ensuring that your heating preferences are met with precision and ease.
    Exclusive Fin Design

    Exclusive Fin Design with Chimney Effect: The Dragon 4’s specialized fin layout expands radiant surface area, generating a chimney effect that enhances upward airflow, resulting in faster, more consistent heat dispersion across the room for total, balanced comfort.

    Digital Control Panel

    Digital LED Control Panel: The TRD2400ET’s intuitive digital panel provides seamless control over temperature, power levels, and programmable timers, allowing users to personalize heating preferences with precision and ease through a sleek, easy-to-navigate interface.

    EcoPlus Function

    ECO Plus Function: This smart feature automatically regulates power output according to the room’s temperature, optimizing energy efficiency while consistently maintaining your desired comfort level—delivering warmth that’s both eco-conscious and cost-effective.

    Tunnel Construction Design

    Tunnel Construction Design: De’Longhi’s innovative tunnel construction amplifies radiant and convective heat transfer, delivering quick, efficient warmth that lasts. This design ensures steady, uniform comfort across the room, even after the unit has been turned off.

    Specifications & manuals

    key Specifications
    Brand
    DeLonghi
    Finish Colour
    White
    Finish Colour Description
    White Body/Dark Facia Control Panel
    Height (mm)
    665 mm
    Width (mm)
    615 mm
    Depth (mm)
    305 mm
    Model Number
    TRD42400ET
    Fuel Type
    Electric
    Castors
    Yes
    Weight (kg)
    21.38 kg
    Power (W)
    2400 W
    Accessories included
    1 x Castor Kit Included.
    warranty
    Manufacturer Warranty
    7 Years
    Warranty Note
    7 Years Domestic Warranty on all Parts & Labour.
    Use
    Not intended or designed for commercial use.
    functions
    Plugin convenience
    Eco Mode
    other Features
    Heater Type
    Column
    Adjustable Temperature
    Heat Output
    2.4
    Wheels
    Timer
    Portable
    Features
    • ● Electronic control panel
    • ● 24 hour timer to program the desired setting
    • ● Three heat settings for added versatility
    • ● Electronic energy saving room thermostat
    • ● 11 Fins to maximise radiant surface
    • ● Overheating safety thermal cut-off

    • ● Automatic tilt switch
    • ● Anti frost function
    • ● Pre-assembled snap lock castors for easy manoeuvring
    • ● Suitable for larger rooms up to 70m3
    electrical Connection
    Type of connection
    10A plug & lead
    Connected load
    2.4 kW
    Length of cord
    2.18 m

    Reviews

    Rating snapshot

    5
    32
    4
    5
    3
    5
    2
    2
    1
    1

    Average customer rating

    Overall
    4.4
    Ease of setup
    4.6
    Build quality
    4.5
    Value of product
    4.0

    Appliances Online's customer reviews are independently managed by Bazaarvoice, ensuring their accuracy and honesty. Vouchers are sometimes offered to verified buyers in exchange for their unbiased review.

    Learn more about Bazaarvoice Authentic Reviews Trust Mark
    Pros
    1-3 of 45 reviews
    Buddhi2025-07-19
    Smooth Operation
    [This review was collected as part of a promotion.] User friendly operation and superb hearing and eco function
    Joey992025-07-28
    Love this heater
    [This review was collected as part of a promotion.] Easy to use, wheels make it simple to move to another room, simple display and thermostat keeps it at set temperature all night.
    Alexed2025-07-22
    Great heater
    [This review was collected as part of a promotion.] We have 4 of these in our home. Love their sleek look and constant heating! Great product.

    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).
    Appliances Professionals Online
    Trent, Alstonville, NSW
    I will definitely return and highly recommend them
    Olga Vareskic,
    It was quick, efficient and the cheapest price I could find
    Michelle,

    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

    What is the ETA for more stock coming in for the Delonghi Dragon4 Electric Oil Column Heater TRD42400ET ? Mark · 2020-05-07
    Good morning, Thank you for this question we have stock on the east coast in Queensland,NSW & Victoria. We do provide that information on our website for you to view simply place your postcode into the locator then select your suburb, next select your product and add to your cart then move forward to the checkout page when you are on the delivery page you scroll down to the calendar to see the next delivery date available for your area or select what date in green will suit you. Our driver will text you on the morning of your delivery to provide a 1-2 hour window of delivery for you, for washers and fridges our drivers will remove the old machine then connect the new machine remove the packaging all included. I hope this information will assist you when shopping here with us at Appliances online. Colin Jones, Appliances Online
    Any possibility to stop the beeping sound when operating the controls? Braveheart · 2020-04-13
    Good morning, Thank you for this question no sorry this beeping noise is to alert u you to the fact that you have just changed a function or temperature once you have set this up there is no noise coming from your heater until you change temperature or timer function once done set & forget. I hope this information will assist you when shopping here with us at Appliances online. Colin Jones, Appliances Online
    does it have a timer Jytte · 2019-04-02
    Hi there! Thank you for your query. Please be advised that this unit does indeed have an in-built timer function. Kind regards, Appliances Online Brad.tuisila, Appliances Online
    Does it come with a remote control? Ankur · 2016-07-09
    Hi, Thank you for your question, The Delonghi TRD42400ET Electric Oil Column Heater does not come with a remote control. If you have any further questions please call us on 1300 000 500. Thank you Kind Regards navnit.kumar, Appliances Online
    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 .

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