7 Best Delonghi Oil Heaters 2025 in the UK

The De'Longhi Dragon 4 TRD41025T Oil Filled Radiator is a noteworthy choice for those needing an effective heating solution for indoor spaces. It features a powerful 2.5 kW heat output with three adjustable settings, allowing for flexible temperature management to suit varying comfort needs. The enhanced chimney effect is a clever design choice, accelerating the dispersion of hot air, which means your space heats up more efficiently. This is particularly useful for medium-sized rooms where quick heating is appreciated.

A standout feature of this radiator is its ease of mobility. It comes pre-assembled with easy wheels and a carry handle, making it user-friendly for moving between rooms. Its elegant, white pedestal design fits well into most home decors, adding a touch of style rather than being an eyesore.

Safety is always a prime concern with any heating device, and De'Longhi has a reputable track record in this area. Additionally, it operates quietly, which is an advantage for those who prioritize noise control in their home or office environment. Despite its excellent build, at 17.52 kg, it may still pose a challenge for some when moving frequently. Lastly, a 10-year warranty underscores its durability, which might imply higher upfront costs compared to other models.

The De'Longhi Radia S Oil Filled Radiator offers a potent heating power of 2000W, making it suitable for rooms up to 60m3. Its long-lasting heat retention is a significant plus, as the heated oil continues to release warmth even after the unit is turned off. The Real Energy Technology enhances efficiency by steadily increasing the temperature, resulting in quicker and more cost-effective heating. The Eco Plus function further optimizes energy consumption by adjusting to the room’s temperature automatically, which is great for saving on energy bills.

Users will appreciate the digital LED interface that allows for easy control over the temperature, power settings, and timer, adding a level of convenience and customization. Safety is also well considered with the safety thermostat and anti-frost functions, ensuring reliable operation even in colder conditions. Portability is another strong point; the radiator comes with a handle and pre-assembled castors, making it effortless to move between rooms without any assembly required.

At 10.6 kg, it's relatively easy to handle for a device of its kind. However, the unit's size (20 x 35 x 60 cm) may be bulky for smaller spaces, and its corded electric power source limits placement options to areas near electrical outlets. Additionally, while it’s generally quiet, any oil-filled radiator may produce slight noise, which could be a minor drawback for some users.

The De'Longhi TRDX40820E Oil Filled Radiator stands out for its effective heating capabilities, with a maximum power of 2000W, making it suitable for heating medium-sized indoor spaces. One of its key strengths is the ergonomic controls that allow users to easily set temperature, timer, and manage power settings, making it user-friendly. This heater's curved design enhances airflow, which can distribute heat more evenly throughout the room. It features a night-time setting for maintaining comfort while reducing energy consumption, appealing to those conscious of their electricity bills.

Safety is a notable feature, as its low surface temperature reduces the risk of burns, which is especially important for households with children. The fluid oil-filled design holds heat longer, providing a consistent warmth even after being switched off. However, weighing over 15 kg, it might not be the most portable option for those who need to move it frequently between rooms.

This heater is particularly well-suited for those prioritizing safety, ease of use, and efficiency in heating small to medium indoor spaces. However, if portability is a major concern, you might want to consider lighter alternatives.