DeLonghi Dragon 4 TRD40820T review
Test score %
- Oil radiator
DeLonghi claims that the Dragon 4 TRD40820T oil-filled heater will create long-lasting heat quickly thanks to its unique chimney system, which is designed to provide a speedy flow of hot air. Find out how quick this heater actually is in our full review.
- Pros and cons
- What is it?
- What’s it great at?
Compare retailersPrices updated daily
Prices are ordered from lowest to highest, irrespective of retailer rating or stock. We are not able to show every possible retailer and cheaper prices may be available. When you click on a retailer link on our site, we may earn affiliate commission. This supports our not-for-profit mission to empower consumers and in no way affects our recommendations.Find out more.
|RetailerRetailer rating||Price||In stock|
|Go to store|
|Go to store|
Make smarter choices
- 41%Lowest score
- 61%Average score
- 81%Highest score
How to buy the best electric heater
Keep warm and toasty during cold weather by buying the best electric heater. Follow Which? expert advice to choose between different electric heater types, the features to look out for, and the best models for energy efficiency.
How we test electric heaters
Electric heater reviews from Which?. Find out how Which? tests electric fan heaters so you can find the best electric heater to keep your home warm this winter.