10 Best Oil Heaters 2025 in the UK

The Russell Hobbs 1500W Oil Filled Radiator is a solid choice if you need a reliable heater for indoor spaces up to 15 square meters, like living rooms or medium-sized bedrooms. Its 1.5kW max power with three heat settings (600W, 900W, and 1.5kW) offers good flexibility to adjust warmth according to your comfort and energy use. The 7-fin design helps distribute heat evenly, which is a plus for consistent warmth.

This heater includes an adjustable thermostat, allowing you to maintain your preferred temperature without constantly turning it on and off. Safety is well covered with overheat and tip-over protection, offering peace of mind if you have pets or children around. Portability is decent thanks to built-in castors and carry handles, so you can move it easily between rooms, though at 7.7 kg it’s not the lightest model.

Oil-filled radiators like this one generally operate quietly as they don’t have a fan, making it suitable for bedrooms or quiet areas. The 1.45m power cord is a bit short, which might limit placement options near wall outlets. A two-year guarantee (one year standard plus a free second year with registration) adds value by protecting your purchase. While this heater is not ideal for very large spaces or outdoor use, it is well suited for users looking for steady, safe, and moderately portable heating in small to medium indoor rooms.

The De'Longhi Dragon 4 TRD41025T is a well-regarded oil-filled radiator ideal for indoor use, offering efficient heating with its 2.5 kW heat output. Users can choose from three heat settings, including a medium setting of 1400 watts and a minimum of 1100 watts, which allows for flexible temperature control. The radiator benefits from an enhanced chimney effect that efficiently circulates hot air, making it a reliable choice for those needing consistent warmth.

A standout feature is its portability, thanks to pre-assembled easy wheels and a carry handle, making it simple to move between rooms. This device is designed with safety in mind, though specific safety features aren't detailed, the long 10-year warranty suggests durability and reliability. The elegant white design is aesthetically pleasing, allowing it to blend seamlessly with various home decors.

However, the radiator's substantial weight of 17.52 kg may make it less convenient for some users when moving it, despite the wheels and handle. As an indoor-only unit, it lacks versatility for outdoor use, which might limit its appeal for those seeking a multipurpose heater. Furthermore, while the noise level is not specified, oil-filled radiators are generally quiet, benefiting users looking for a heater that doesn’t disturb their environment.

In conclusion, the De'Longhi Dragon 4 is well-suited for indoor spaces needing a powerful, flexible heating solution with easy portability, though its weight and single-purpose usage might be points to consider for potential buyers.

The Pro Breeze Oil Filled Radiator is a solid choice if you want reliable and consistent heating for an indoor space like a home or office. With 2500 watts of power distributed across 11 fins, it heats rooms efficiently over long periods, making it more cost-effective compared to quick-fix fan heaters. You can easily control the warmth thanks to its adjustable thermostat and three heat settings (1000W, 1500W, and 2500W). The built-in 24-hour timer is a nice touch for saving energy by scheduling when the heater runs.

Safety is well covered with features like tip-over protection, overheat shutoff, and built-in heat protection, so it’s suitable even for rooms with children or bathrooms where safety is crucial. The heater is also designed to be portable despite its size, with four wheels, a carry handle, and cable tidy, making it easy to move between rooms and store away.

Weighing about 9.3 kg and having a slim profile, it fits easily in smaller spaces like under a desk or in a corner. For steady, low-maintenance heat with good safety and energy-saving options, this radiator is a dependable pick. If you need very fast heat or outdoor use, you might want to consider other types of heaters.