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Best De'Longhi radiator

Updated: 22 October 2026

Best on a comparison site without a lab test means fit for a stated room, backed by what amazon.co.uk reviewers actually say, plus an honest skip line when the listing fights itself. You already know you want De'Longhi oil-filled heat. This page names conditional picks for a very small room, a normal bedroom or office, and a larger space, then says who should walk away. Every price and star count sits on the [De'Longhi radiator comparison](/hub/heating/de-longhi-radiator). Peter F. compared the seven listings, read on 20 October 2026. There was no lab test. A qualifying purchase can earn a commission at no extra cost to you.

Best on a comparison site without a lab test means fit for a stated room, backed by what amazon.co.uk reviewers actually say, plus an honest skip line when the listing fights itself.

Our top picks

De'Longhi De'Longhi Radia S TRRS0920E.G

Best overall

De'Longhi De'Longhi Radia S TRRS0920E.G
8.5/10about £132.99
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De'Longhi De'Longhi TRNS0505M

Best value

De'Longhi De'Longhi TRNS0505M
7.8/10about £82.99
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De'Longhi De'Longhi Dragon 4 Pro TRDX41025E

Rank 3

De'Longhi De'Longhi Dragon 4 Pro TRDX41025E
8.3/10about £218.98
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On this page
  1. 1.What best means here
  2. 2.Small room: De'Longhi TRNS0505M
  3. 3.Normal room with a digital timer: Radia S TRRS0920E.G
  4. 4.Larger or colder room: Dragon 4 Pro TRDX41025E
  5. 5.Skip lines you should not ignore

What best means here

None of the seven rows was tested in a workshop. Scores use listing clarity, controls in the bullets, review depth and price. Wattage and timer criteria are in the De'Longhi radiator buying guide. A 4.5 line with 2,570 reviews is not a better heater than 4.6 from 176 if the room only needs 500 W. An ASIN is named when room type, timer and review themes line up. A shared review pool, a missing review line or a nonsense dimension field belongs in the skip line.

Small room: De'Longhi TRNS0505M

For a utility, study or very small bedroom, the 500 W Nano (B01M0UHYDT) at about £82.99 is the sensible match, and best value in this set. 4.5 stars from 2,570 reviews is the deepest evidence pool here. One reviewer timed a cold 19 m³ kitchen moving from 7 °C to 17 °C in about ninety minutes. That is context for expectations, not a guarantee in your house. Skip it if you are heating a lounge, a draughty landing or any space where reviewers repeatedly say 500 W cannot keep up. The bullets do not claim a timer, so you live with the thermostat or manual switching. More than one review mentions failure after about two years, and several warn the case gets hot near the plug if you stand it against the socket.
De'Longhi De'Longhi Radia S TRRS0920E.G

Testsieger

De'Longhi De'Longhi Radia S TRRS0920E.G
8.5/10about £132.99
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Normal room with a digital timer: Radia S TRRS0920E.G

For a typical 2000 W bedroom or spare room, the grey Radia S (B07KMQDJC4) at about £132.99 is the top pick: 4.6 from 176 reviews, 60 m³, Real Energy, ECO Plus and a timer from 0.5 h to 24 h. At 10.64 kg it is lighter than the 15 kg Dragon 4 rows. Reviewers describe quiet heat and wheels that make a bedroom move simple. Skip it if you need 2500 W, or if first-week smell reports put you off. Smell appears more often here than on the Dragon 4 Pro file. A minority of reviews mention leaks. Any oil smell means stop and contact De'Longhi. For chimney fins at the same 2000 W, TRDSX40820E.WB (B0DLHDSWBM) at about £171.00 lists a 0 h to 24 h timer and ECO Plus. Opening UK reviews are shared with TRDX40820E (B07TKMPXKX). The title mentions three fan settings. The bullets only list power steps. At 15.6 kg, confirm the box says TRDSX40820E.WB.

Larger or colder room: Dragon 4 Pro TRDX41025E

When 2000 W feels short, the 2500 W Pro (B07TKMPNXJ) at about £218.98 is the large-room pick: 4.5 from 1,710 reviews, a 24-hour digital panel and ECO. Ignore the 1.9 kg item field. The bullets give 57.5 × 16.0 × 66.5 cm. The coverage field says 807.3 square feet, not 60 m³. Skip it for a small bedroom a 2000 W Radia S would hold for less. Full power at 2500 W costs more per hour than 2000 W when the thermostat demands it. Clearance and the overnight rule are on De'Longhi radiator for bedrooms. The mechanical TRD41025T (B00CA1T076) at about £266.00 has 4.5 from 1,854 reviews if you accept a timer described in reviews, not in the bullets. At 18 kg it is a two-person lift. The coverage field says 75 meters, which is not a room-size guide.

Skip lines you should not ignore

The Radia S Easytronic TRRSE0920 (B0HKTCN61Z) at about £120.00 is the cheapest 2000 W row, but the listing file read on 20 October 2026 has no amazon.co.uk review line and no review text. Buying it is a listing-only bet until the live page shows shopper feedback. B07TKMPXKX and B0DLHDSWBM share review openings. Treat their 634 count as a mixed Dragon 4 electronic pool, not two independent samples. Corrupt centimetre or kilogram fields on several ASINs are not product sizes. Use the bullets and the photographs on the main comparison.

Common questions

Which listing for a box room?
B01M0UHYDT, the 500 W Nano at about £82.99, if you accept no timer in the bullets and a slow warm-up.
Which listing for a bedroom that needs a timer?
B07KMQDJC4 for an electronic timer and lighter weight. B0DLHDSWBM if Dragon 4 chimney heat matters more than the Radia S fin layout.
Which listing if the room is large or draughty?
B07TKMPNXJ at 2500 W first, on review depth. B00CA1T076 if you prefer mechanical timer operation and accept the highest price here.
Is the highest review count the best heater?
No. The Nano's 2,570 reviews reflect popularity at 500 W, not superiority over a 2500 W Dragon in a large room.
Why is there no star rating on the Easytronic row?
The amazon.co.uk listing file read on 20 October 2026 has no customer-review line for B0HKTCN61Z. Stars may appear later on the live listing. This page reflects that file.
Is the dearest model the one to buy?
B00CA1T076 at about £266.00 is the most expensive here. It is not automatically the best fit. Many bedrooms suit 2000 W at a lower price.
Should you skip a listing with shared reviews?
Read shared pools carefully. B0DLHDSWBM and B07TKMPXKX still have useful themes, but do not double-count the 634 line as two independent scores.
What does best mean without a lab test?
Conditional picks from listing fit, review themes and price in this seven-product UK set. Not a universal winner for every house.

Related pages

Dragon 4 vs Radia S

De'Longhi radiator

De'Longhi radiator buying guide: watts, timer, room

De'Longhi radiator for bedrooms: clearance and night

How to use a De'Longhi oil radiator: setup and timer

Sources

Public UK and De'Longhi GB sources named below. amazon.co.uk prices, stars and review counts on these seven listings were taken from the listing files read on 20 October 2026. Page updated October 2026.

  1. De'Longhi GB Dragon 4 TRD40820T (retrieved 20 October 2026)
  2. De'Longhi GB TRDX40820E (retrieved 20 October 2026)
  3. De'Longhi GB TRDSX40820E.WB (retrieved 20 October 2026)
  4. Dragon 4 instructions (retrieved 20 October 2026)
  5. De'Longhi GB Nano TRNS0505M (retrieved 20 October 2026)
  6. Electrical Safety First, portable heaters (retrieved 20 October 2026)
  7. Ofgem energy price cap, 1 October to 31 December 2026 (retrieved 20 October 2026)
  8. legislation.gov.uk, Regulation 2015/1188 Annex II (retrieved 20 October 2026)