De'Longhi TRD40615E Dragon 4.
De'Longhi TRD40615E "Dragon 4" — 1,500W oil-filled radiator with digital thermostat and programmable timer that warms a whole room silently, with no exposed heating element.
The Verdict.
Gavler Meta-Score
“The silent whole-room pick: oil-filled convection with a digital thermostat and timer, and no exposed element. Choose it for bedrooms and offices where fan noise is a dealbreaker; accept a slower warm-up in exchange.”
The Gavler Verdict
Where to Buy.
Prices checked regularly
90-day price history
Price History
Steady at $130 for the entire 90-day tracking window — no increases, no discounts, across 45 tracked days.
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Precision Engineering
Zero Fan Noise
Oil-filled convection heats the room silently — no fan, no moving-air sound — the reason to pick a radiator for a bedroom or office.
No Exposed Element
Sealed oil circulates through finned columns, so there is no exposed heating element; thermal cutoff and anti-tip protection are built in.
Digital Thermostat + Timer
A digital thermostat and programmable timer hold a set temperature and can pre-warm a room on a schedule.
Technical Specifications
The Scoreboard
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