The screen provides the thermostat temperature – that it's set to rather than the current temp – as well as icons for the power level (min, med, max), heating status, power, timer and lock functions.

DeLonghi Oil Filled Space Heater | DeLonghi

Some of our partners may process your data as a part of their legitimate business interest without asking for consent. It has been downhill for him ever since, writing for publications such as PC World, Wired and Reviewed. This is still compact enough to sit next to my office chair but a little too tall to fit under a desk – plus with the heat radiating from the top, that probably isn't advised anyway.When we really kept it running, over the long term, even our largest rooms began to feel warm all the way through.

DeLonghi Up to 1500-Watt Oil-filled Radiant Tower Indoor DeLonghi Up to 1500-Watt Oil-filled Radiant Tower Indoor

You also have the option to set the heater for how many hours it should be turned off before to turn itself on again. As you can see DeLonghi trd40615e is a full room, radiant heater, despite having many positive features like most heaters, also has a few drawbacks. I really like the extra feature that increases the efficiency of the heating, which are the thermal chimneys located on the top surface of the heater. The controls are all on the front end of the radiator and comprise six main buttons for the thermostat, power level, timer, dimmer and on/off. Featuring a digital control panel and a 24-hour timer with 96 on/off intervals, the TRD50615E delivers powerful, cost-efficient heat while minimizing dryness and allergens.There's no fan noise with an oil-filled radiator but that is an audible pop and crackle as the oil first heats.

DeLonghi Dragon 4 Pro TRD40615E user manual (English - 8 pages) DeLonghi Dragon 4 Pro TRD40615E user manual (English - 8 pages)

The Radia S Eco looks like a standard oil-filled radiant heater, which is to say that it looks like an old-fashioned steam radiator that has lost its pipe connection. While we have found that all kinds of heaters, and even some other DeLonghi oil-filled radiators, can be a little noisy when they first startup (an issue of the metal slightly expanding with heat), the DeLonghi Dragon doesn’t seem to have this issue at all and was always completely silent running. In the DeLonghi Dragon 4 these are only noticeable in the first couple of minutes of turning the device on. The larger panels and chimney design certainly suggest the Dragon 4 is the more powerful of the two and it certainly had no problem covering my 160 sq ft room. The fourth sets the power level to one of three options, while the fifth turns the eco mode on and off.The best heaters are perfect for supplementing your regular home heating or providing a localized heat source. The Radia was not as quick to heat as the fan heaters that we tested – it takes longer to warm the things around it, even at the highest of the three power settings. The oil-filled parts are covered in ridges that help the heat radiate, and the controls are located on one side of the body.

DeLonghi TRD40615E Dragon Oil Filled Radiator Heater Review

If you really wanted to use this kind of heater with a timer, you could always add a smart plug, that way you can easily schedule it to turn on or off as often as you like. There's also an anti-freeze function that activates when the thermostat is set to 41ºF and will only turn on when the room drops below this temperature.The DeLonghi Dragon 4 has been on the market for around three years, making it relatively new in heater terms. The TRD40615E Dragon oil-filled radiator is a premium full-room radiant heater from DeLonghi and truly looks and feels like a high-quality product, with a solid construction, high material quality, and beautiful styling.