De'Longhi TRDX41025E Oil Filled Radiator, Dragon 4

Product Information

They’re handy if you want to heat a room fast, as they warm up quickly and send plenty of heat into the room. It’s got more than enough output to cover most average-sized rooms and, with five heat settings, it’s versatile enough to handle low-level heating of larger spaces or scale down to heat smaller rooms as well. We found the most drastic changes happen in the first half an hour and increases in temperature become more incremental after that.

Delonghi Dragon 4 PRO 2.5kW Digital Oil Filled Radiator with

Programmable timer Useful for setting a heater to turn on just before you get home or wake up, so there's no waiting around for the heater to warm up.

With a nine-fin design and 2kW of power it’s equipped to handle spaces of up to 18m², and with three heat settings and a thermostat dial, you can tune it for background heat or a proper winter warm-up. The advantage of the oil-filled models is that it’s a tried and tested technology that’s proven to build up and maintain a consistent temperature – and one that’s relatively cheap to run.

Delonghi Dragon 2.5kW Oil Filled Radiator White - TRDX41025E Delonghi Dragon 2.5kW Oil Filled Radiator White - TRDX41025E

While radiators do radiate heat, a lot of it is spread through convection and manufacturers have found a range of different approaches to improve how well this works. Pay in 3 is a form of credit, may not be suitable for everyone and use may affect your credit score. We test electric radiators in the late autumn and winter in real-world circumstances within the home, testing over a period of at least three days. These can still be bought, but they aren't as popular or widely available as fan or convector heaters. Read our full story on illegal and dangerous plug-in mini heaters for sale on online marketplaces to see those we identified as having serious safety risks.Key specs – Heat output: 2kW; Controls: Adjustable thermostat; Extra features: Overheat protection, tip-over switch; Dimensions: 435 x 135 x 665mm; Weight: 9. Although the comparison might make your electric heater look cheaper to run, bear in mind that it will only be heating a much smaller area, whereas your central heating will be aiming to heat your whole home.

Coffee Machines | Coffee Makers | Argos Coffee Machines | Coffee Makers | Argos

The included castors enables fantastic mobility throughout your home and the built-in cord storage and safety cut out switch ensures safety for all.There’s no timer, but it warms up very quickly and delivers quite consistent heat – and it also cools down fast once you turn it off.

Radiators| Column Radiators | Cast Iron Radiators | Costc Radiators| Column Radiators | Cast Iron Radiators | Costc

For electric heaters with programmable thermostats, we set them to a specific temperature and compare the temperature display on the electric heater to our own temperature monitors to check for any discrepancies. We also time how long it takes the radiator to warm one test room from cold to a comfortable 20°C, and use a passthrough power meter to check the energy consumption at full power, half power and anti-frost power settings. Plus, with anti-frost protection and overheat safety protection you are assured that you won't be left in the cold either.Most of the cheaper, simpler heaters we tested have a dial thermostat that doesn't let you choose specific temperatures in °C. As well as how quickly the average room temperature increases, we also use probes to check for any areas significantly hotter or cooler than the rest of the room. They tend to be a little slower than fan heaters, but are quieter, and our tests found some are still pretty speedy. During this time, we’ll judge how easy the controls are to use, and test the ability of the thermostat to maintain a consistent level of heat.