Updated 2 Jun 2017

DeLonghi

Dragon 4 TRD42400ET

Snapshot: DeLonghi is a stalwart of the heating aisle, but have they delivered with this high-end oil-column?

Dragon 4 TRD42400ET
Consumer score
SCORE
Avg price

$430

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Test results

Overall score
69
Performance
?/10
Ease of use
?/10
Heat up score
?/10
Evenness score
?/10
Thermostat score
?/10

Good points

  • OK performance.
  • Moderately fast at room-heating.
  • OK at controlling room temperature.
  • Easy to use.
  • Passed all safety tests.
  • Has tilt switch.
  • Has cord storage.
  • Has digital timer.

But

  • Somewhat uneven heating.
  • Heavy.
  • No fan.

How we test

Overall score

  • Performance (70%) - calculated on: the heater’s ability to warm a room from 8°C to 13°C and from 8°C to 18°C; the evenness of the room heating; and the thermostat’s performance.
  • Ease of use (30%) - assessed equally on: using the controls, the labelling of controls, the heater’s mobility, cord storage, and ease of cleaning.

Performance
We test heaters in a special room fitted with 81 evenly placed temperature sensors. The temperature reading from the sensors enables us to create a 3-D map of the effect each heater has. We look at the time the units take to heat the room, the evenness of the room’s temperature, and how well the thermostats keep the room at an even temperature.

Safety
Tilt test - while all heaters passed the standard’s requirement that they don’t topple over when inclined to 15° in any direction, any portable heater can be knocked over accidentally. So we put each heater on its side with the power on to see how long it took to turn off.

Drape test - we turned the heaters up to full temperature on full power and then draped a towel over each heater for 30 minutes. This test should trip the heater’s over-temperature safety switch.

Key data

Model

Type
Oil column
Avg price
$430

Specifications

Heat-up time (minutes)
19.7
Weight (kg)
19.2
Maximum wattage
2400
Noise
n/a
Heat settings
3

Brand survey results

Brand reliability (%)
95
Brand satisfaction (%)
70

Features

Passed all safety tests
Tilt switch
Thermostat
Timer
Timer type
Digital
Fan
×
Carry handles
Cord storage
Connectivity
-

More Info

Notes

-

Availability

-

Member reviews