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De'Longhi Dragon Digital Oil Filled Radiator TRD40615E: Can This 1500W Space Heater Warm Your Whole Room in 2026?

The De'Longhi Dragon delivers silent, programmable 1500W heating that works best in bedrooms. The premium price and missing tip-over protection are the two biggest trade-offs.

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Key Specifications

Best For
Full room heating

Best For

How this product scores for different use cases

Our Verdict

This De'Longhi heater runs at 1500W and heats your room silently. The oil-filled design uses no fan, so you hear nothing.

The 24-hour timer and programmable thermostat give you full automatic control. Set your temperature before bed and wake up warm.

At $189.95, you pay more than most electric heaters in this wattage class. The silent oil technology and digital controls account for the higher price.

The missing tip-over protection is a real gap at this price. Most heaters in this range include that safety feature as standard.

This heater fits bedrooms best, where silence matters most. It is not the right tool for garages, drafty workshops, or large open spaces.

What We Like

  • Runs at full 1500W, hitting the highest benchmark tier for electric space heater output.
  • Oil-filled design produces zero fan noise for completely silent heating.
  • 24-hour programmable timer lets you set daily heating schedules in advance.
  • Programmable thermostat automatically holds your chosen room temperature.
  • Built-in overheat protection shuts the unit off if it runs too hot.

What Could Be Better

  • No tip-over protection. Most 1500W heaters at this price include this safety feature as standard.
  • No remote control. You must walk to the heater to change any setting.
  • No oscillation. Heat moves in one direction only, which limits how evenly a room warms up.
  • At $189.95, this heater costs more than most comparable 1500W electric space heaters.
  • No Wi-Fi or app control. Many competitors at this price now include smart home integration.
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Standout Features

1500W rated output
Hits the top benchmark tier for electric heater wattage. Most oil-filled radiators in this size class cap at exactly 1500W, putting this unit at the ceiling of its category.
24-hour programmable digital timer
Most budget and mid-range space heaters offer only 1 to 8 hour fixed timers. A full 24-hour digital timer lets you schedule heating for any time of day or night.
Fan-free oil-filled heating technology
Ceramic tower and fan heaters typically produce 40 to 60 decibels of noise during operation. This unit produces near-zero sound, making it one of the quietest heater types available.

Full Specifications

Additional Info

AssemblyNo

Frequently Asked Questions

Common questions about De'Longhi Dragon Digital Oil Filled Radiator Heater, 1500W Electric Space Heater for indoor use, programmable timer, Energy Saving, full room heater with safety features TRD40615E

How loud is this heater when it is running?

This heater uses oil-filled technology with no internal fan. It produces no fan noise at all, making it one of the quietest space heater types you can buy.

Does it have a timer I can program?

Yes. It includes a 24-hour programmable timer with a digital LED display. You can schedule it to turn on and off at specific times each day.

What size room can it heat effectively?

At 1500W, this heater works best in rooms up to about 150 to 200 square feet. Larger spaces with poor insulation may not heat evenly.

Will it turn off automatically if something goes wrong?

It includes overheat protection that shuts the heater off automatically if the unit gets too hot. It does not have tip-over protection, so keep that in mind for placement.

Can I control this heater with my phone or a remote?

No. This heater has no remote control, Wi-Fi connection, or app support. All settings are adjusted directly on the control panel on the unit.

Scores

Overall Score 64/100
Value Score 42/100
Popularity 78/100

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Tags

oil filled radiator silent operation 1500w output 24 hour timer programmable thermostat premium brand bedroom heater no tip over protection digital led controls no oscillation no remote control

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Scored 64/100

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