4 sourced reports, with what to check before you buy. Each one links to the page it was reported on.
Costly or dangerous
TRD41025 has no tip-over protection and keeps running on its side
A teardown-style owner review of the TRD41025 states the radiator has no tip-over protection and continues operating while lying on its side. The manufacturer's own manual warns that any non-upright position 'could create a hazardous situation', so a unit that keeps heating when knocked over is a documented fire risk, especially in a home with children or pets. This came from the 'De'Longhi TRD41025 şikayet' search.
What to check. Keep the radiator upright and in a stable spot where it cannot be knocked over; do not rely on an automatic tip-over cut-out, as this unit does not appear to have one.
Official Turkish manual: covering the running TRD41025 causes dangerously high overheating
The official Turkish instruction manual for the TRD41025 (shared with TRD40820/TRD40615) warns in bold that covering the running appliance can cause dangerously high overheating, and that any oil leak must be reported to Customer Experience. These are the manufacturer's own documented fire hazards for the unit sold in the Turkish market, and they give a buyer clear things to avoid. This came from the 'De'Longhi TRD41025 şikayet' search.
What to check. Never cover the radiator while it is on, and do not use it to dry laundry; if oil ever leaks from the body, stop using it and report it to De'Longhi service.
TRD41025B enters an un-resettable safety mode and will not turn back on
On the Darty certified-owner forum for the TRD41025B, an owner reports the radiator went into safety mode and could not be turned back on; the manual directs them to contact service, with the repair quoted at over 100 euros. A second owner reports the same 'won't turn on' failure. The manual confirms the unit has a safety device that switches it off on accidental overheating and must be reset via Customer Experience, so a lockout is a real, costly failure mode for this exact model. This came from the 'De'Longhi Dragon4 TRD41025 common problems' search.
What to check. If the unit trips into safety mode, expect that it may not reset without service support; factor in the cost and distance of an authorized repair when buying.
TRD41025B surface gets hot enough to burn, owners warn around children
On the Darty certified-owner forum for the TRD41025B, multiple owners confirm the radiator surface burns on contact at high power, with one explicitly warning to keep children away. The Turkish manual likewise warns that parts can get very hot and cause burns, especially around children. This is a documented burn hazard inherent to the oil radiator's surface, not a comfort complaint. This came from the 'De'Longhi Dragon4 TRD41025 yangın riski' search.
What to check. Expect a hot exposed surface; place it out of reach of small children and do not touch the fins while running.
These reports come from the pages linked under each item: owner forums, repair guides and workshops. They are not a diagnosis of any one unit, and a careful check of the one you are buying still applies.
Text from the Kriko Electric space heaters catalog, version 0.1.1, under the CC-BY-SA-4.0 license.
