In-depth review
DeLonghi Oil-Filled Radiator Review (2026)
Research-based review of the DeLonghi oil-filled radiator: silent radiant heat, thermostat, timer, and bedroom suitability assessed.
DeLonghi Oil-Filled Radiator
Silent, steady radiant heat for bedrooms.
Our verdict
The DeLonghi oil-filled radiator is the best bedroom heater you can buy. It makes no noise at all, warms evenly without hot spots, and the sealed oil fins keep radiating warmth after the element cycles off. The adjustable thermostat and 24-hour timer mean it can pre-warm the room before bed and shut itself down later. It is slow to heat a freezing room and heavy to carry between floors, but for steady overnight comfort nothing in this guide matches it.
What we like
- Completely silent operation, no fan
- Stays warm after switching off
- Sealed oil never needs refilling
What to watch out for
- Slow to heat a cold room
- Heavy to move between rooms
- Surface gets hot to the touch
Who it is for
Bedroom and living-room users who want silent, even heat that lasts.
Heat quality
Radiant oil heat is the most comfortable kind: no blowing air, no dry gusts, just steady warmth that fills the room. The fins stay hot after the thermostat cuts power, so the heater cycles less often than fan types. The tradeoff is speed; give it 15 to 20 minutes to bring a cold room up to temperature.
Controls and timer
Multiple heat settings plus an adjustable thermostat let you dial in the exact warmth. The 24-hour programmable timer is the standout feature for bedrooms: set it to warm the room before you sleep and switch off in the early hours. An anti-freeze setting keeps pipes safe in unused rooms.
Safety and placement
Thermal cut-off protects against overheating. The surface does get hot, so keep it clear of curtains and out of toddler reach. At around 20-plus pounds it is not something you will carry upstairs daily; buy one per floor if needed.
What owners report
Commonly praised
- Silent operation, so it works well in bedrooms
- It gives steady heat that lasts after the thermostat cycles off
- Owners like the safety features such as overheat protection
Common complaints
- It is slow to warm a room compared with fan heaters
- There is often a burning smell on the first few uses
- It is heavy, and some find it underpowered for cold basements
Recurring themes from owner reviews on retailers and forums, summarised by our editors. Updated October 2026.
Key specifications
- Max output
- 1500 watts
- Heat type
- Oil-filled radiant
- Settings
- Multiple heat settings with adjustable thermostat
- Timer
- Programmable 24-hour timer
- Safety
- Thermal cut-off, anti-freeze setting
Also consider
Vornado VH200
Vortex circulation for even whole-room warmth.
- Max output: 1500 watts
- Heat type: Vortex forced air
Lasko Ceramic Tower Heater
Fast oscillating heat with remote control.
- Max output: 1500 watts
- Heat type: Ceramic with fan
Research-based assessment. ThePickLedger has not hands-on tested this product; this evaluation synthesizes manufacturer specifications, retailer documentation, and published expert reviews.
Questions, answered
Does the oil need refilling?
No. The oil is permanently sealed inside the fins and never needs refilling or replacing.
How long does it take to heat a room?
Expect 15 to 20 minutes for a cold bedroom. It is slower than ceramic heaters but the warmth lasts longer after cycling off.
Is it safe around pets?
The surface gets hot, so keep pets from sleeping against it. The thermal cut-off and tip-over safeguards are standard.