Product Overview
The De'Longhi TRD40615T Dragon Radiant Heater provides 1500W of quiet, radiant heat. Its unique thermal chimney design maximizes heat transfer while maintaining a low surface temperature. This durable, maintenance-free unit features manual controls, an adjustable thermostat, a 24-hour programmable timer, and three heat settings. It also includes an antifreeze standby setting and preassembled Smart Snap wheels for easy portability, allowing you to heat specific rooms efficiently.
Important Safety Information
Always read and understand all safety warnings and instructions before using this appliance to prevent fire, electric shock, injury, or property damage.
- Tip-Over Switch: The heater is equipped with a safety tip-over switch that automatically shuts off the unit if it falls over.
- Thermal Cut-Off: A thermal cut-off function turns off the machine in case of overheating.
- Child Lock: Features a child lock for added safety.
- Low Surface Temperature: Unique thermal slot design helps maintain a low surface temperature.
- Antifreeze Setting: The Anti-freeze setting automatically activates the heater when the room temperature drops below 41°F (5°C) to prevent freezing.
- Placement: Ensure the heater is placed on a stable, level surface and away from flammable materials. Do not cover the heater.

Image: The De'Longhi TRD40615T heater with callouts for low surface temperature, automatic power cut-off for overheating, and insulated wiring for safety.
Setup and Assembly
The De'Longhi TRD40615T comes with preassembled Smart Snap wheels, requiring no additional installation. Simply ensure the heater is upright and on a stable, level surface before plugging it into a suitable electrical outlet.
- Unpack the heater and remove all packaging materials.
- Place the heater on a firm, level surface. The Smart Snap wheels are pre-attached for immediate use.
- Ensure the power cord is fully extended and not obstructed.
- Plug the heater into a grounded 120V AC outlet.

Image: Close-up of the De'Longhi TRD40615T's preassembled Smart Snap wheels, designed for easy movement and stability.
Operating Instructions
The heater features intuitive mechanical controls for temperature and power level selection, along with a programmable timer.
- Power On/Off: Plug the unit into a suitable electrical outlet. The power indicator light will illuminate.
- Setting the Thermostat: Use the thermostat dial to select your desired room temperature. The heater will cycle on and off to maintain this temperature.
- Selecting Heat Settings: Choose from three heat settings (Min, Med, Max) using the power level switches to adjust the wattage output.
- Min: Lower wattage for smaller spaces or maintaining warmth.
- Med: Medium wattage for general heating.
- Max: Full 1500W for rapid heating of larger spaces.
- Using the 24-Hour Programmable Timer:
- Rotate the timer dial to align the current time with the arrow indicator.
- Push the segments around the dial inwards for the periods you want the heater to be ON. Each segment represents 15 minutes.
- Leave segments outwards for periods you want the heater to be OFF.
- The heater will automatically turn on and off according to the set program.
- Antifreeze Function: If the thermostat is set to the snowflake symbol (*), the heater will automatically turn on if the room temperature drops below 41°F (5°C) to prevent freezing.

Image: Close-up of the De'Longhi TRD40615T's manual control panel, showing the thermostat dial, power level switches (Min, Med, Max), and the 24-hour programmable timer.
Maintenance
Regular maintenance ensures optimal performance and longevity of your heater.
- Cleaning: Always unplug the heater from the electrical outlet and allow it to cool down completely before cleaning. Wipe the exterior surfaces with a soft, damp cloth. Do not use abrasive cleaners or solvents.
- Dust Removal: Use a vacuum cleaner with a brush attachment to remove dust from the air intake and outlet grilles.
- Oil Reservoir: The diathermic oil reservoir is permanently sealed and never needs refilling or replacement.
- Storage: When not in use, store the heater in a cool, dry place. You can wrap the power cord around the integrated cord storage for neatness.
Troubleshooting
If your heater is not operating correctly, consult the following common issues:
- Heater does not turn on:
- Ensure the power cord is securely plugged into a working electrical outlet.
- Check if the thermostat is set to a temperature higher than the current room temperature.
- Verify that the power level switches are engaged (Min, Med, or Max).
- Confirm the unit is upright; the tip-over switch may have activated.
- Check your home's circuit breaker or fuse box.
- Heater turns off unexpectedly:
- The thermal cut-off may have activated due to overheating. Unplug the unit, let it cool down for 30 minutes, and ensure air vents are not blocked.
- The tip-over switch may have activated if the unit was bumped or tilted.
- The timer may have reached an "OFF" period.
- Insufficient heat output:
- Ensure the power level is set to "Max" for full 1500W output.
- Confirm the thermostat is set to a high enough temperature.
- The room size may exceed the heater's recommended heating coverage (small to medium spaces).
Specifications
| Feature | Detail |
|---|---|
| Brand | De'Longhi |
| Model Number | TRD40615T |
| Power | 1500 Watts |
| Fuel Type | Electric |
| Burner Type | Radiant |
| Controls | Mechanical (Adjustable Temperature, 3 Heat Settings, 24-hour Timer) |
| Safety Features | Child Lock, Tip-Over Switch, Thermal Cut-Off, Antifreeze Setting |
| Portability | Preassembled Smart Snap Wheels, Integrated Handles |
| Dimensions (D x W x H) | 16"D x 6.5"W x 25"H |
| Item Weight | 25 pounds |
| Heating Coverage | Small to Medium Spaces |
| Voltage | 120 |
| Amperage | 12.5 Amps |

Image: The De'Longhi TRD40615T heater with its dimensions (16"D x 6.5"W x 25"H) clearly indicated.
Warranty and Support
This De'Longhi heater comes with a 3-year warranty. For technical support, troubleshooting assistance, or warranty claims, please refer to the contact information provided in your product packaging or visit the official De'Longhi website.
For further information, you may also visit the De'Longhi Store on Amazon.