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HEATING, COOLING & AIR TREATMENT | 8 MAY, 2025
8 MIN READ

10 of the best oil column heaters in Australia 2025

Find the best buy to match your room size.

Heat on wheels: portable column heaters are a good choice for many homes

When it comes to keeping warm in winter, portable heaters are a top choice for many Australians because they're affordable, easy to use and great for heating individual rooms.

While reverse cycle air conditioners and ducted air con can be very efficient at heating large areas, like a whole home or a level of a house, they’re not always practical or cost-effective for targeted warmth (and cost significantly more to buy and install). Gas heaters, meanwhile, are increasingly restricted by government regulations and can only be used in living areas (not bedrooms) with gas connections.

In contrast, electric heaters like oil column heaters are flexible, portable and simple to use. Most are freestanding on castors, making it easy to move them where you need them, and many now come with handy inclusions like thermostats, timers and safety mechanisms like a tip-over switch.

If you're shopping for a column heater this winter, you’ll want to choose a trusted brand you can rely on rather than grabbing a flimsy model that might last a season or two. DeLonghi and Dimplex are two of the leaders in heaters, with models to suit everything from small rooms like home offices to large rooms like dining or living rooms.

We tend to call column heaters 'oil heaters' or 'oil column heaters' in Australia because traditionally they contain oil that gets heated up - but three of the Dimplex models in this roundup are actually oil-free. Their design allows them to heat up faster than traditional oil-filled versions, though they also cool down more quickly because they don’t have the residual warmth of heated oil that lingers after switch-off.

Column heaters generally come in two main power ratings: 1.5kW and 2.4kW. Both can eventually heat up a room to the same temperature, but a 2.4kW model will typically do it faster because of the higher power output. However, features like built-in turbo fans can make a big difference. A 1.5kW column heater with a turbo fan may heat a room more quickly than a 2.4kW model without a fan, because the fan helps circulate warm air efficiently rather than relying on natural convection.

Most heaters have an upper temperature capacity of around 30-35°C, but we recommend keeping it closer to 21-23°C! Keep in mind that higher kW models tend to be larger, so can be bulkier to store once winter’s over.

Here’s a look at five of the best 2.4kW and 1.5kW column heaters available in Australia in 2025, all of which come with an impressive 7-year manufacturer’s warranty (compared with budget-brand models, which usually have only 1-year warranties). The recommended retail prices are shown, but Appliances Online sells at lower prices when possible.

5 of the best 2.4kW column heaters for larger areas

2.4kW heaters are better suited to large rooms like living and dining rooms.

The Dimplex 2.4kW Oil Free Column Heater with Thermostat ECR24
1. Dimplex 2.4kW Oil Free Column Heater – RRP $210

With a thermostat and simple dial controls, the standout of this oil free column heater is its fast warm up time. Rather than traditional oil, it uses a metal heating element and fins to achieve up to eight times faster heat-up, making it potentially more energy efficient than oil heaters for achieving quick heat. Without oil, it weighs just 11.8kg, making it lighter and easier to manoeuvre than most oil-filled heaters.

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The Delonghi Electric 2400 watt Oil Column Heater DL2401TF
2. DeLonghi Thermo 2400W Oil Column Heater – RRP $249

This model pairs a traditional radiator with a built-in 500W fan heater, helping it circulate air faster. With a thermostat, heat settings and a 24-hour timer, it offers a solid set of functions and also has safety features including a tip-over switch and overheat protection. A good choice if you want the reliable performance of an oil column heater with an extra airflow boost.

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The Delonghi Dragon4 Electric Oil Column Heater TRD42400MT
3. DeLonghi Dragon4 Oil Column Heater - RRP $379

Known for its clever design, this fin oil column heater creates a chimney effect to push hot air upwards, boosting airflow and coverage. Like all oil heaters, the oil retains heat after the heater is switched off, offering lingering warmth that can help manage running costs if used strategically. The heat settings are controlled by manual dials.

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The digital Delonghi Dragon4 Electric Oil Column Heater TRD42400ET
4. DeLonghi Dragon4 Digital Oil Column Heater – RRP $479

This digital version of the Dragon4 adds LED panel controls for the thermostat and programmable timer, as well as ECO Plus mode. ECO Plus goes beyond a standard thermostat by automatically adjusting power output as room conditions change. Instead of simply turning on or off, it smoothly lowers or raises the heat output to save energy and reduce running costs.

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The Delonghi Radia S 2400W Digital Oil Column Heater TRRS1224EG
5. DeLonghi Radia S Digital Oil Column Heater – RRP $289

This column heater includes 12 fins designed for effective heat distribution. You’ll find a digital thermostat and timer, and an ECO mode for energy saving. Built-in safety features include a tip-over switch and child lock. A good balance of performance, safety and price, it’s a smart buy for families.

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Stay warm with a portable column heater - Free delivery

5 of the best 1.5kW column heaters for smaller rooms

1.5kW heaters are better suited to small rooms like bedrooms or home offices.

The Dimplex 1.5kW Oil Free Column Heater with Timer & Turbo Fan ECR15TIF
1. Dimplex 1.5kW Oil Free Column Heater with Timer & Turbo Fan – RRP $220

Lightweight (7.2kg) and oil free, this model adds a turbo fan for faster air circulation, a thermostat, and a timer. It’s a versatile pick if you want fast, even heating in bedrooms or living spaces, especially when you need to quickly take the chill off on cold mornings or icy evenings.

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The Delonghi Radia S Electric Oil Column Heater TRRS0715T
2. DeLonghi Radia S Electric Oil Column Heater – RRP $189

A simple, reliable heater with three heat settings, a timer and excellent heat retention thanks to its oil core. Its quiet operation and sturdy design make it a dependable choice if you prefer traditional oil-filled heaters for bedrooms, studies, or shared living areas.

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The digital Delonghi Dragon4 Electric Oil Column Heater TRD41500ET
3. DeLonghi Dragon 4 Electric Oil Column Heater – RRP $339

This high-end model features the Dragon 4’s signature chimney fins and digital controls, including an ECO Plus function for optimising output. It’s a good pick if you want a premium heater with superior airflow and energy management, especially for medium to large rooms that need consistent warmth.

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The Delonghi Radia S Digital 1500 watt Oil Column Heater with Timer TRRS0715EG
4. DeLonghi Radia S Digital Oil Column Heater – RRP $229

With digital settings, an ECO mode, and enhanced fin design for even heat, this model offers the same great build as the standard Radia S but adds easier, more precise control. Perfect if you like the look and performance of the Radia S range but want digital convenience and better temperature fine-tuning.

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The Dimplex 1.5kW Oil Free Column Heater with Thermostat ECR15
5. Dimplex 1.5kW Oil Free Column Heater – RRP $180

Compact and simple, this oil free column heater is lighter than oil models and offers fast heating. It’s a great pick if you rent or need something light and easy to store and move, though it lacks the turbo fan of its sibling model (see number 1, above), making it less suited to larger rooms.

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When buying a portable heater, think about your room size, whether you need fast heat up times (turbo fan or higher wattage), and how much you value features like digital controls, timers and energy saving modes.

Rather get a panel heater? Check out 5 of the best panel heaters in Australia 2025.

The column heaters here all offer solid safety features and reliable performance, but spending a bit more can get you extras like ECO modes, digital precision and better airflow.

Looking to make bedtime cosier too? Check out these six grades of electric blanket to find the perfect fit.

Keep cosy with Free, Next Day Delivery* on column heaters!

We deliver column, gas and panel heaters, air conditioning systems, electric blankets and water heaters to 95% of Australians with Appliances Online's legendary FREE delivery - and we can usually get it to you by the next day (Mon-Fri) when it's in stock.

We even offer paid Same Day Delivery in metro NSW, Qld and Vic for in-stock items ordered by noon weekdays. Check out our range of heating and cooling appliances, and if you need any advice, call our friendly team 24/7 on 1300 000 500 or message us via the chat icon at the bottom of your screen.

Oli Kitchingman

Oli is Appliances Online's editor and blogger, with almost two decades of lifestyle-related writing and editing to his name. With a mission to help you buy better and live smarter, his brand loyalty will forever belong to the appliance manufacturer that develops a self-emptying dishwasher.

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