Product overview
De'Longhi Dragon Digital Radiator Heater (TRD40615E): What to Know
The TRD40615E is a 1,500W oil-filled column radiator with a digital control panel, an ECO energy-saving function, and De'Longhi's larger-fin design, which the company markets as delivering 75% more radiant surface area than a standard radiator fin. De'Longhi's U.S. support materials rate the model for rooms up to about 144 square feet, with three heat levels and an adjustable thermostat. Unlike the fan-based heaters in this guide, an oil-filled radiator has no moving air component; it heats a sealed reservoir of thermal oil and radiates that warmth outward, which is inherently slower to feel but leaves no fan noise and a lower surface temperature than an exposed ceramic or PTC element.
De'Longhi's own product materials list a tip-over switch, a thermal cutoff, and a child lock as built-in safety features. One gap worth being upfront about: De'Longhi's U.S. product and support pages reviewed do not explicitly state an ETL, UL, or CSA certification mark for this specific model, even though the listed safety features (tip-over, thermal cutoff) are consistent with what those certifications typically require. That's a case where we'd rather note the missing data point than assume the certification exists.
De'Longhi sells several closely related "Dragon" models, including the TRD40615E, a black TRD40615EBK variant, and the step-up TRD50615E "Dragon4 Pro" with a more advanced 24-hour/96-interval timer, so buyers should confirm the exact suffix before assuming a feature from one model applies to another.
Key Listed Features
1,500W oil-filled radiator rated for rooms up to about 144 sq ft, per De'Longhi's own listing
Digital control panel with an ECO energy-saving function and adjustable thermostat across three heat levels
Tip-over switch, thermal cutoff, and child lock built in, per De'Longhi's product documentation
No fan noise by design, since heat radiates from an oil-filled column rather than being blown by a fan
