Our Top Picks
DeLonghi Dragon Digital Oil Filled Radiator Heater16"w x 10"d x 26"h10.3 x 16.4 x 26.1 inches26.6 poundsCheck on Amazon
De'Longhi Oil filled Radiator Heater5.9" D x 13.78" W x 24.8" H6.5 x 15.5 x 27 inches23.15 PoundsCheck on Amazon
If you want a De’Longhi oil-filled radiator, the short answer is the De’Longhi Dragon Digital for anyone who wants a thermostat, a programmable timer and an ECO mode, and the De’Longhi EW7707CM ComfortTemp for anyone who just wants a quiet, simple dial-and-go heater for a bedroom or office. Everything else on this page either fills a gap those two leave (remote control, lower budget, mechanical controls) or is a rival brand that does one thing better for less.
A straight note on what is actually available: the De’Longhi range is narrower than it looks, and many model numbers are sold only in certain regions. This guide uses only the De’Longhi radiators that appear in the current product feed, and it fills the rest of the list with the closest rival oil-filled radiators, clearly labelled as alternatives. De’Longhi comes first wherever it earns the spot. This page contains affiliate links; if you buy through them we may earn a commission at no extra cost to you.
Top Picks at a Glance
- Best overall De’Longhi: Dragon Digital (digital thermostat, programmable timer, ECO Plus)
- Best simple De’Longhi: EW7707CM ComfortTemp (three heat settings, dial thermostat)
- Best with a remote (alternative brand): DREO 1500W with 4 modes and 24-hour timer
- Best mechanical-controls pick: De’Longhi radiant radiator with mechanical controls
- Best for wide fins and power memory (alternative brand): Hykolity 1500W with 7 M-shaped fins
- Best for a larger room with safety layers (alternative brand): DREO radiator with 8 safety protections and remote
- Best budget (alternative brand): Dumos 22-inch oil-filled radiator
Comparison Table
| Pick | Best for | Controls | Timer | Remote | Watch for | Price tier |
|---|---|---|---|---|---|---|
| De’Longhi Dragon Digital | Programmable all-day comfort | Digital panel | Programmable | Not listed | Heaviest, priciest | Premium |
| De’Longhi EW7707CM | Quiet bedroom heat | Dial thermostat, 3 settings | None listed | No | No timer | Mid-range |
| DREO 4-mode radiator | Remote and timer for less | Digital thermostat | 24 hours | Yes | Rival brand | Mid-range |
| De’Longhi mechanical radiant radiator | No-menu operation | Mechanical | Not listed | Not listed | Few listed specs | Premium |
| Hykolity 7-fin radiator | Wide fins, power memory | ECO mode | 24 hours | Not listed | Rival brand | Mid-range |
| DREO 8-protection radiator | Large rooms, remote | Digital thermostat | 24 hours | Yes | Rival brand | Premium |
| Dumos 22-inch radiator | Small rooms on a budget | Adjustable thermostat | Not listed | Not listed | Fewer features | Budget |
1. De’Longhi Dragon Digital: Best for programmable all-day comfort
DeLonghi Dragon Digital Oil Filled Radiator Heater, 1500W Electric Space Heater for indoor use, programmable timer, Energy Saving, full room heater with safety features TRD40615EBK, 16"x10"x26", Black
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Key specs: 1500W; digital controls; programmable timer; energy-saving mode; listing size 16 x 10 x 26 inches; model TRD40615EBK (black). Weight is roughly 26 pounds according to reviewers who list it; the listing itself does not state a weight.
Best for: people who heat the same room on a routine and want the heater to follow a schedule. Skip if: you want the lightest or cheapest radiator, or you want a remote (none is listed).
The Dragon Digital is the De’Longhi radiator most reviewers single out, and the reason is the control layer. Instead of a three-position knob, you set a target temperature on a digital panel and program when the heater turns on and off. Competitor reviews describe a 24-hour timer and an ECO Plus mode that modulates power rather than cycling hard between full and off. That matters in practice because an oil-filled radiator is a slow, steady heat source: it works best when it is left to hold a room at a set temperature rather than blasted on and off.
Because the oil stores heat, a programmed schedule pays off. You can have it start a short while before you wake or arrive home and drop back overnight. Reviewers also credit the Dragon line with child lock, tip-over protection and thermal cut-off, though you should confirm the exact safety features on the listing for the version you buy. The same heater appears under two listings (TRD40615E and the black TRD40615EBK); they are the same model family, so pick whichever is in stock.
Compared with the EW7707CM below, you are paying for programmability and a digital readout. If you would never touch a timer, that premium is wasted, and the simpler model is the better buy. Compared with the rival DREO units, the Dragon trades a remote and a lower price for a better-known name and a more established service reputation.
Pros:
- Digital thermostat and programmable timer
- ECO mode that modulates power
- Wheels for moving between rooms
- Quiet, fan-free heat
Cons:
- Higher price than most radiators on this list
- Slow warm-up, as with any oil-filled design
- No remote listed
2. De’Longhi EW7707CM ComfortTemp: Best for simple bedroom use
De'Longhi Oil filled Radiator Heater, 1500W Electric Space Heater for indoor use, portable room heater, Energy Saving, full room like office and bedroom with safety features, EW7707CM
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Key specs: 1500W; three heat settings; manual thermostat dial; ComfortTemp slot design intended to lower surface temperature; anti-freeze setting; snap-in wheels; reviewers cite a three-year warranty (confirm on the seller page).
Best for: bedrooms, home offices and anywhere you want quiet heat with no menu. Skip if: you want a timer or a digital thermostat.
The EW7707CM is the radiator to buy when the whole point is silence and simplicity. There is no fan, no display and no timer to program. You pick one of three heat levels, turn the thermostat dial until the room feels right, and leave it. The thermostat cycles the element on and off to hold roughly that temperature, and the oil in the fins keeps radiating after the element switches off.
The ComfortTemp design is the feature De’Longhi highlights: slots in the body are meant to let air flow and keep the outside surface cooler than a solid panel would be. Treat that as a reduction in surface temperature, not as a promise that it is cool to the touch. Any oil radiator can be hot enough to cause a burn on contact after a long run, so keep it clear of curtains, bedding and anywhere a child or pet might lean on it.
The anti-freeze setting is a useful extra for a spare room, workshop or holiday home: it keeps a minimum temperature so pipes and the room itself do not drop towards freezing. As an energy-saving choice it is no different from other 1500W resistance heaters; the savings come from heating one room instead of the whole house, not from the heater being unusually efficient.
Pros:
- Very simple controls
- Anti-freeze setting
- Lower price than the digital Dragon
- Fan-free and quiet
Cons:
- No timer listed
- Dial thermostat is less precise than a digital one
- Slow to warm a cold room
3. DREO 4-Mode Oil-Filled Radiator: Best with a remote and timer for less
DREO Oil Filled Radiator Heater, Electric Heaters for indoor use Large Room | Quiet, Digital Thermostat, ECO, Remote Control, 4 Modes, Child Lock, Overheat & Tip-Over Protection, 24h Timer, 1500W, Grey
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Key specs: 1500W; digital thermostat; ECO mode; remote control; four modes; 24-hour timer; child lock; overheat and tip-over protection (all from the listing).
Best for: anyone who wants De’Longhi-style quiet heat plus a remote, for a lower price. Skip if: you specifically want the De’Longhi name or its service network.
This is the rival that does the most for the money. The listing gives you the control set that the De’Longhi Dragon charges more for: a digital thermostat, a 24-hour timer, an ECO mode and four operating modes, plus a remote so you can adjust it from bed or the sofa. For a bedroom, the remote is the feature people actually notice day to day, because an oil radiator usually sits low to the floor and reaching down to a knob is a nuisance.
The safety list on the listing covers a child lock, overheat protection and tip-over protection, which is the baseline you should demand from any radiator in 2026. What the listing does not tell you is how long the heater takes to warm up or how loud its thermostat clicks. Assume warm-up time is similar to any 1500W oil radiator, which means tens of minutes before the room feels different, and that a quiet thermostat click is normal.
It is not a De’Longhi, so if brand matters for reasons such as warranty handling or replacement parts, take that into account. If it does not, this is the best value in the guide.
Pros:
- Remote, digital thermostat and 24-hour timer
- ECO mode and multiple modes
- Child lock and tip-over protection
- Lower price than the Dragon Digital
Cons:
- Not a De’Longhi
- Weight and exact dimensions not listed
4. De’Longhi Radiant Radiator with Mechanical Controls: Best for no-electronics operation
1,500 Watt Portable Electric Radiant Radiator Heater with Mechanical Controls
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Key specs: 1500W; portable; mechanical controls. The listing is very short and does not state fin count, dimensions, weight, timer or safety features, so those are not listed here.
Best for: buyers who dislike electronic panels and want a heater that just has knobs. Skip if: you need confirmed safety specs before buying; check the full listing first.
The title of this listing is unusually bare: a 1500 watt portable electric radiant radiator with mechanical controls, sold under the De’Longhi brand. That tells you three things. It is a radiant, oil-style heater rather than a fan heater, so heat comes from a warm body rather than moving air. It runs at 1500W, the usual limit for a standard household outlet. And its controls are physical, not a touchscreen or remote.
Mechanical controls are a real advantage in one situation: a room where you want the heater to survive a power cut or a flaky display. There is no electronic panel to fail or confuse a family member. The trade-off is that you give up the precision of a digital thermostat and any timer. Because the listing does not publish fin count or dimensions, you cannot compare it fairly on size with the Dragon or the EW7707CM, so open the listing images and the manual before deciding.
Value-wise it sits in the premium bracket on the feed, which makes the EW7707CM the safer buy unless you have a reason to prefer this one.
Pros:
- Simple physical controls
- De’Longhi brand
- Fan-free radiant heat
Cons:
- Specs sparsely listed
- No timer or remote listed
- Priced above the simpler EW7707CM
5. Hykolity 1500W with 7 M-Shaped Fins: Best for wide fins and power memory
Hykolity Oil Filled Radiator Heater for Large Room, 1500W Electric Oil Space Heater with 7 Extra-Wide M-Shaped Fins, ECO Mode, 24H Timer, Power Memory, Overheat & Tip-Over Protection for Home Office
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Key specs: 1500W; seven extra-wide M-shaped fins; ECO mode; 24-hour timer; power memory; overheat and tip-over protection (from the listing).
Best for: a living room or large bedroom where you want maximum fin surface and a heater that resumes after a power cut. Skip if: you need a remote (not listed on this listing).
The selling point here is physical: seven wide, M-shaped fins. In an oil radiator, more fin surface means more area to release heat into the room at a given wattage, which tends to produce a gentler, more even warmth because each fin runs a bit cooler than a narrow-fin design pushing the same 1500W. The power memory feature restores your previous setting after an outage, which is handy for a room you leave heated while away.
The 24-hour timer and ECO mode round out a feature set close to the Dragon Digital’s. Hykolity also sells a remote version, which is covered in the “Also consider” section. Like the others, it relies on the thermostat and the oil’s stored heat; do not expect instant warmth.
Pros:
- Wide M-shaped fins
- 24-hour timer and ECO mode
- Power memory
Cons:
- Remote not listed on this version
- Rival brand, service unknown
6. DREO 8-Protection Oil-Filled Radiator: Best for large rooms with a remote
DREO Radiator Heater, 1500W Oil Filled Radiator Heater for Indoor Use | 8 Safety Protection Electric Heaters for Large Room, Remote Control, 4 Modes, Digital Thermostat, 24H Timer, Quiet Operation
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Key specs: 1500W; eight safety protections; remote control; four modes; digital thermostat; 24-hour timer; quiet operation (all from the listing).
Best for: larger bedrooms and living rooms where you want the most safety features and a remote. Skip if: you only need a small-room heater; the cheaper model above is enough.
This second DREO is aimed at larger rooms, and its headline is the safety stack: the listing advertises eight protections. The list typically covers things like overheat, tip-over and thermal cut-off, but the title does not enumerate them, so check the listing before assuming a specific feature. Alongside that you get a remote, four modes, a digital thermostat and a 24-hour timer.
The wattage is the same 1500W as everything else, so “large room” here means that the unit has more fin area and controls suited to a long run, not that it produces more heat. No plug-in oil radiator can exceed 1500W on a standard outlet. For a big or poorly insulated room, expect it to maintain temperature rather than quickly raise it, and pair it with draft-proofing.
Pros:
- Remote and digital thermostat
- Advertised eight safety protections
- 24-hour timer
Cons:
- Costs more than the other DREO
- Same 1500W ceiling as every plug-in radiator
7. Dumos 22-Inch Oil-Filled Radiator: Best budget pick
Dumos Oil Filled Radiator Heater with Adjustable Thermostat, Noiseless | 1500W Oil Space Heater for Indoor Use, Portable, Bedroom, Living Room, 22inch Black
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Key specs: 1500W; adjustable thermostat; described as noiseless; 22-inch height; black (from the listing). Timer, remote and safety features are not listed in the title.
Best for: a small bedroom, a dorm or a spare room where cost matters most. Skip if: you need a timer or confirmed safety features.
The Dumos is the entry point. At 22 inches tall it is the most compact radiator in the main list, which suits a small bedroom or a desk-side spot. It has an adjustable thermostat and runs with no fan, so it is quiet. What it does not advertise in its title is a timer, a remote or a list of safety protections, so you are trading features for price. Before buying, confirm that the listing shows tip-over and overheat protection.
A budget radiator like this is a sensible choice if you will use it occasionally and plan to supervise it. For an all-night, every-night bedroom heater, spending a little more for the De’Longhi or DREO models with documented safety features is a better use of the money.
Pros:
- Lowest price tier
- Compact 22-inch body
- Quiet, fan-free
Cons:
- Few documented features
- No timer or remote listed
Also Consider
Sweetcrispy 1500W Slim Oil-Filled Radiator
Sweetcrispy Oil Filled Radiator Heater for Indoor Use 1500W Quiet Operation | Adjustable Thermostat, 22.8*11.8*4.9in, Fast Heating, Portable, Noiseless, Black
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Best for narrow spaces: the listing gives a size of 22.8 x 11.8 x 4.9 inches and an adjustable thermostat at 1500W. The trade-off is that it is thin and basic, with no timer or remote listed.
Hykolity 1500W with Remote and 24-Hour On/Off Timer
hykolity 1500W Oil Filled Radiator with 24H ON OFF Timer, Electric heater with Remote, Adjustable Thermostat, 4 Modes, Child Lock, Overheat & Tip-Over Protection For Indoor Use, 1500W (Grey)
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Best for buyers who like the Hykolity brand but want a remote: the listing includes an on/off timer, four modes, child lock and overheat and tip-over protection. The trade-off is that it is a rival brand with a mid-to-premium price tier.
DREO Dual-Knob Quiet Radiator
DREO Radiator Heater, Quiet Electric Space Heater for Indoor Use Large Room | Dual Knobs, Energy Saving, 8 Safety Protection, 1500W Quiet Oil Filled Radiator for Bedroom, Adjustable Thermostat, Grey
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Best for people who want DREO’s safety list without digital controls: it has dual knobs, an adjustable thermostat and eight safety protections. The trade-off is that you give up the remote and the digital timer.
How We Chose
This guide is built from research, not from personal use of the heaters. We started with the De’Longhi oil-filled radiators that are currently purchasable in the product feed, then added the closest rival oil-filled radiators to complete the list. For each product we compared the specifications stated on the listing and on maker pages, and read independent reviews and retailer pages to see where reviewers agree.
The criteria were: wattage (1500W is the practical maximum on a household outlet); control type (digital, dial or mechanical); timer and remote availability; documented safety features such as tip-over switch, overheat protection and child lock; mobility (wheels, handle); and how much of the specification is actually published. Where a detail is not stated, we say so rather than guess. We favoured models where the listing publishes enough information to judge safety. Reviews often point to the same three trade-offs for every oil radiator: slow warm-up, no help for very large or leaky rooms, and a price premium for digital controls.
We did not use star ratings, review counts or price figures in the ranking, because those change daily and can be gamed. Price is expressed only as a tier.
Buying Guide
How much room can a 1500W oil-filled radiator heat?
A 1500W heater delivers about 5,100 BTU per hour (1500 watts multiplied by 3.412). A common rule of thumb is about 10 watts per square foot for a room with average insulation, which puts 1500W at roughly 150 square feet. Reviewers describe the Dragon as suitable for around 150 to 250 square feet, which is optimistic and assumes a well-insulated room and an occasional rather than primary heat source. For a cold, leaky or high-ceilinged room, plan on 100 to 150 square feet per radiator.
| Room type | Approximate size | Suggested approach |
|---|---|---|
| Small bedroom or nursery | Up to 100 sq ft | One 1500W radiator on a low setting |
| Average bedroom or office | 100 to 150 sq ft | One 1500W radiator with a thermostat |
| Large bedroom, well insulated | 150 to 200 sq ft | One radiator, accept a slow warm-up |
| Living room or open plan | Over 200 sq ft | Use as a supplement to central heating |
Digital or dial controls?
A digital thermostat holds a set temperature more precisely than a dial, and it lets you read the current setting. A dial or mechanical control is simpler and has fewer parts to fail. If you plan to leave the heater running all night, a digital thermostat usually means fewer swings around your target temperature. If you only run it for an hour in the evening, the dial is enough.
Do you need a timer or remote?
If the radiator is on a fixed schedule, such as warming a home office before you start work, a timer saves energy and effort. A remote matters most for a low-slung radiator in a bedroom. Of the models here, the DREO radiators list a remote, the Dragon lists a timer, and the EW7707CM lists neither.
What safety features should it have?
Treat these as a minimum: tip-over shutoff, overheat protection, and a thermal cut-off. A child lock matters if the heater is in a child’s room. Check that the heater is listed to a recognised safety standard such as UL or ETL on the product page. Plug the radiator directly into a wall outlet, not into an extension cord or power strip, and keep at least three feet of clear space around it.
| Safety check | Why it matters | Where to confirm |
|---|---|---|
| Tip-over switch | Cuts power if knocked over | Listing bullets |
| Overheat or thermal cut-off | Stops the element running away | Listing bullets |
| Child lock | Blocks setting changes | Listing or manual |
| Safety certification | Independent testing mark | Label or manual |
| Cord length | Avoids extension cords | Listing or reviews |
What does it cost to run?
At full power, a 1500W heater uses 1.5 kilowatt-hours for each hour of running. Multiply that by your local electricity rate per kilowatt-hour to get the hourly cost. In practice the thermostat cycles the element, so the average draw is lower once the room is warm. A radiator is not more efficient than any other 1500W resistance heater; the saving comes from heating one room instead of the house. If you want a method for working out running cost on another appliance, see this watts-to-monthly-cost walkthrough, which uses the same kWh arithmetic.
Is dry air a concern?
Oil-filled radiators have no fan and do not burn oxygen, so they dry the air less aggressively than a fan heater, but heating any room lowers its relative humidity. If winter air makes you uncomfortable, a humidifier helps; there is a guide to winter humidifiers by heating type and room size on this site. If you have the opposite problem of damp, see the sizing guide for small, damp living spaces.
Oil-Filled Radiator vs Ceramic Heater
If speed matters most, a ceramic fan heater warms you in seconds but is louder and heats only the air near it. An oil-filled radiator is slow to start but quiet and holds heat after the element turns off. Choose a ceramic heater for a quick boost at a desk or bathroom, and an oil-filled radiator for a bedroom or any room you occupy for hours. The table below summarises the trade-offs.
| Factor | Oil-filled radiator | Ceramic fan heater |
|---|---|---|
| Warm-up | Slow, tens of minutes | Fast, seconds |
| Noise | Near silent, thermostat click | Fan noise |
| Heat after switching off | Yes, from stored oil heat | No |
| Best use | Bedrooms, long runs | Short boosts |
| Portability | Heavier, on wheels | Light |
FAQ
Do De’Longhi oil-filled radiators need to be refilled with oil?
No. The oil is permanently sealed inside the radiator at the factory, and De’Longhi states that the reservoir never needs refilling. If you see oil leaking, stop using the heater and contact the seller or manufacturer rather than trying to open it.
How long does a De’Longhi oil-filled radiator take to heat a room?
Expect tens of minutes before the room feels noticeably warmer, because the oil and the metal fins have to warm up first. The warmth then lasts after the element cycles off. For faster heat, use a ceramic or panel heater while the radiator warms up.
Is it safe to leave an oil-filled radiator on overnight?
Models with tip-over and overheat protection are designed for continuous use, but manufacturers still advise against leaving any heater unattended near flammable items. Keep the radiator on a hard, level floor, plug it straight into the wall, and keep bedding and curtains well clear. If you have a medical or safety concern, ask your local fire service or a qualified electrician.
Which is cheaper to run, an oil-filled radiator or a fan heater?
At the same wattage they consume the same electricity while running. The oil radiator cycles off more often once the room is warm and keeps radiating, which can make it feel cheaper over a long evening, but it does not use less energy per hour at full power.
What is the difference between the Dragon Digital and the EW7707CM?
The Dragon Digital adds a digital display, a programmable timer and an ECO mode. The EW7707CM has three heat settings and a dial thermostat and no timer. Both are 1500W, fan-free and quiet. Buy the Dragon if you want scheduling and the EW7707CM if you want simplicity and a lower price.
Can I use an extension cord with an oil-filled radiator?
It is best not to. A 1500W heater draws about 12.5 amps on a 120V circuit, which can overheat a thin extension cord or a power strip. Plug it straight into a wall outlet, and avoid sharing that circuit with other high-draw appliances.
Are oil-filled radiators good for large rooms?
They suit small to medium rooms best. A single 1500W unit struggles in rooms above about 200 square feet or with poor insulation. For those spaces use one as a supplement to central heating, or check for draughts first.
Where should I put an oil-filled radiator?
Place it on a flat hard floor, away from walls, curtains and furniture, ideally near the coldest part of the room such as under a window. Keep at least three feet of clear space in front and avoid damp spots like bathrooms.
Which Oil-Filled Radiator Should You Buy?
Buy the De’Longhi Dragon Digital if you want a thermostat, a timer and ECO mode from a brand name. Buy the EW7707CM if you want a quiet, simple bedroom heater and do not care about a timer. Pick the DREO 4-mode radiator if a remote and a lower price matter more than the De’Longhi badge. Choose the DREO 8-protection unit for a bigger room where safety features count, and the Dumos for a small, occasional-use spot on a tight budget. If you are on the fence between the Dragon and the EW7707CM, ask yourself one question: will you really program a timer? If not, the simple one is enough.
Last updated: October 2026
