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Oil Filled Radiator Buying Guide


If you’re looking to effectively heat a room or boost your central heating system, oil filled radiators are popular, sought-after heating solutions. These traditional radiators have been revamped with new, stylish designs to suit any home.

Last updated: October 26, 2026 Share

If you’re looking to efficiently heat a room or enhance your central heating system, Devola Oil filled radiators are a reliable and highly sought-after solution. These classic heaters have been modernized with sleek, stylish designs to suit any home. 


Why Choose an Oil Filled Radiator? 

Oil filled radiators are a hassle-free solution to heating woes and are among the most widely purchased electric heaters thanks to their versatility and reliability. Unlike central heating systems, they require no maintenance or servicing – simply plug in and go.

They are cost effective and energy efficient as you can simply place them where the heat needs to be! No more waiting for the radiator on the other side of the room or heating the whole house unnecessarily. Thanks to their oil they are excellent at retaining heat so less energy is needed. Even after they’ve stopped drawing power, they continue to gently radiate heat from within.

With handy additions like a 24-hour timer. You’re in complete control of when your heater turns on, saving you money against costly ‘on or off’ alternatives. You simply programme what heat you want your space to be and when – and the radiator handles the rest!

Devola Oil filled radiators are also safer than their alternatives. Where classic, central heating radiators get hot enough to burn if touched, oil filled radiators won’t get that hot on the surface.

How do Oil Filled Radiators work?

As the name might suggest, oil filled radiators are filled with a special type of oil that works as a heat transfer fluid. There will be a heating element within this fluid that works similarly to how a kettle heats water. All of this is then held within the metal body, usually made from cast iron.

Oil filled radiators have a distinctive design of curved columns, known as fins, that increase the surface area of your radiator. This allows more air to come into contact with the radiator for optimal heat transfer.

Oil filled radiators use both convection and radiation to heat your space and the people in it.

Convection heating works by heating the air directly in front of the heater. This hot air then rises, pushing cold air downwards to be heated by the heater.

Radiation heat works by directly heating the people and objects in a room, rather than the air. It is a much more efficient method of heating. 

Pros and Cons of Oil Filled Radiators


Pros:

  • Energy efficient

  • Great choice for small areas 

  • Silent running 

  • Portable 

  • Heat without drying 

  • Safer than other heaters as the surface doesn’t get hot enough to burn 

 

Cons:

  • Larger units can be bulky 

  • Only suitable for spaces up to 25m2


Features of Oil Filled Radiators

Castor Wheels: You don’t need to decide a permanent place for your heater as these units are fitted with wheels.

Carrying handle; Easily manoeuvre your unit thanks to this convenient built in handle.

Tip Over Sensor: Should anything happen to cause your unit to tip over it will automatically shut off thanks to this safety feature.

Overheat Protection: Further to the tip over sensor, the overheat protection prevents any hazards by automatically switching the unit off if it senses it getting too hot.

24 hour timer: 24 hour shutdown timer means you can personalise the heater setting to suit your needs.

Adjustable heating: Adjustable controls mean you can tailor your level of heat output.

Cable storage: The extra-long, 1.5m cable can be conveniently stored on the unit thanks to the built in cable storage and plug. 



What size is right for my space?


600W 7 Fin – 6m²: Designed for smaller spaces, a 600W, 7-fin oil-filled radiator is suitable for heating areas of up to approximately 6m². Its compact size makes it a practical option where floor space is limited, while the oil-filled design provides a steady, consistent source of heat.
800W 9 Fin – 8m2: An 800W, 9-fin oil-filled radiator is suitable for heating smaller, compact spaces, making it a practical option for rooms where additional warmth is needed. The oil-filled design provides a steady and consistent source of heat.
1000W 11 Fin – 10m2: For spaces such as sheds, workshops or garden rooms, a 1000W, 11-fin oil-filled radiator can provide a consistent source of heat while you work. Its compact design makes it suitable for areas where space is limited, helping to create a more comfortable environment during colder months.
1500W 5 Fin – 15m2: A 1500W, 5-fin oil-filled radiator can provide effective heating for larger rooms while taking up relatively little floor space. Its compact design makes it easier to position in rooms where space is limited, as well as convenient to store when not in use.
2000W 7 Fin – 20m2: A 2000W, 7-fin oil-filled radiator is suitable for larger rooms where good heat distribution is important. Its compact design makes it well suited to spaces such as kitchens and living rooms, particularly where there is regular airflow or a need for additional warmth.

2500W 9 Fin – 25m2:  A 2400W oil-filled radiator is designed to provide a high level of heat output for larger spaces. It can be suitable for areas such as meeting rooms, event spaces and studio apartments where additional or more substantial heating is required.



Powerful Heat.

Effortless comfort



At the top of the range sit the DVOFR2500 11-fin models, available in both anthracite and white. The 11-fin design increases the surface area for better heat transfer, so you get fast, even warmth across rooms up to 25m². Choose the 2500W 11-fin anthracite model for a contemporary, statement look, or the 2500W 11-fin white model for a clean, classic finish.



Prefer a simpler approach to heating? The Devola 2500W Oil Filled Radiator with Mechanical Thermostat in White (DVOFRM2500W) delivers the same powerful 2500W output and 11-fin warmth in a modern white finish, but with straightforward manual dial controls — no digital displays, just simple, reliable heat adjustment at your fingertips.


At Devola, we understand the importance of staying warm in winter without overspending. That’s why we’re committed to crafting modern, energy-efficient oil-filled radiators that combine style with functionality. Our radiators not only enhance your space but also deliver reliable, instant warmth right when you need it most.

Discover Devola’s exclusive range of portable oil filed radiators, thoughtfully designed to keep you cosy and comfortable all year round.

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