De'Longhi TRDX41025E Oil Filled Radiator, Dragon 4

Product Information

These have exposed heating elements, which heat up cold air as it passes. This often leads to slower, but more even, heating. They tend to be a little slower than fan heaters, but are quieter, and our tests found some are still pretty speedy. 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. In our tests, we set every heater to run at full blast so you can see the maximum amount it cost to heat our medium-sized test room. If you have the thermostat of your heater set to a desired temperature, the heater will toggle on and off once it reaches that temperature – depending on what's needed to maintain it. The heater won't operate continuously, so won't cost you as much to run. Are electric heaters cheaper to use than central heating? Key specs – Heat output: 2kW; Controls: Adjustable thermostat; Extra features: Overheat protection, tip-over switch; Dimensions: 435 x 135 x 665mm; Weight: 9.5kg Frost protection The heater can be set to heat automatically when the temperature drops below 5°C, but you'll need to have it on standby for it to run, so this can limit its usefulness.

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BTU stands for British Thermal Units and represents the level of heat a radiator provides. The required BTU level to heat your room will influence the size of your radiators. Fortunately, we offer numerous options in all shapes, styles and sizes for you to find one that's right for you. How is it calculated? Due to the long list of factors that come into play to calculate your central heating costs, the only way you can confidently compare a heater to your central heating is to install a smart meter. You then divide your weekly heating cost by the number of hours you have it switched on and compare that figure to the cost of running your heater. Buy It Direct Ltd is a limited company registered in England. Registered number 04171412. Registered office: Unit A Trident Business Park, Leeds Road, Huddersfield, West Yorkshire, HD2 1UA. For a small room or outside office, you can probably get away with a 600W to 800W radiator. For an average-sized room or conservatory, you might want to look at 1,500W to 2,000W. If you’re heating larger rooms or a chilly conservatory, you should go to 2,000W and above.

We assess how easily each electric heater can be set up and how easily understandable the controls and settings are. We used any handles to lift the heater and move it around. While some heaters can be used straight out of the box, others have complicated program and timer settings. These can still be bought, but they aren't as popular or widely available as fan or convector heaters. We use a force meter to record how much is needed to topple each heater over and a decibel meter to measure how much noise each one makes while running. Keen to optimise home heating? See our advice on boiler controls and thermostats , smart meters , and loft insulation Pinning down an exact comparison of how much central heating and electric heaters cost to run is nigh-on impossible, as the factors below are just some of the variables that play a part:

Best electric radiator 2023: Banish the chills with these

This impressive slim-line Dragon 4 radiator from De'Longhi is perfect for large rooms or spaces up to 75 m³. It has a powerful 2500 Watt output and 3 heat settings, making it easy for you to find the ideal temperature and stay toasty warm. It boasts an increased radiant surface that delivers better and more evenly spread heat distribution - faster! The wattage isn’t the be-all and end-all, though, as different designs will be more or less efficient at distributing heat through the room. 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. Oil-filled or oil-free?Portable electric heaters use electricity, which costs 27.35p/kWh under the current energy price cap. Depending on how effective the heater is, they can take anything from 30 minutes to an hour to notably raise the temperature of a medium-sized room, so if you're only planning on using it until the room gets up to temperature, it will likely cost you between 28 and 55p. Central heating is much more effective at maintaining a stable temperature over a longer period, whereas the heat from an electric heater will soon dissipate if the rest of your home is cold. We've put electric heaters from Argos, Dimplex, DeLonghi, Dyson, Russell Hobbs and more to the test, including electric wall heaters, fan heaters, oil heaters and convectors.