Are Oil Filled Radiators Cheaper To Run Than Electric Heaters? Find Out Here!

Last Updated on April 19, 2023 by
Are Oil Filled Radiators Cheaper To Run Than Electric Heaters

Depending on the amount of electricity you use, the answer will vary. If you use less than 1kWh per month, then yes, oil filled radiators are cheaper to run.

However, if you use more than 1kWh per month, then electric heaters are cheaper to run.

If you’ve ever wondered if oil filled radiators work, then you’d better read this article. In this article, we’ll examine what an oil filled radiator is and why it works. You may also like to visit our other guide about oil-filled radiator refilling.

What Is Oil-Filled Radiators?

Using oil filled radiators is a popular choice for homeowners who want to save energy and reduce their energy costs.

An oil-filled radiator is a type of radiator that uses a layer of oil to transfer thermal energy from one place to another. In an oil-filled radiator, oil absorbs heat from the surrounding air.

The reason these radiators work is that they use heat energy stored in the oil instead of electricity. 

The oil heats when the cooler temperature drops and releases heat when the constant temperature rises. It takes a lot of energy to heat oil. It’s easier to heat a house using an oil filled radiator.

Oil-filled radiators are a great alternative to electric heating. They have been in use for many years have many benefits when compared to traditional heating options.

How Does an Oil-Filled Radiator Work?

An oil-filled radiator uses a heating element that has been placed inside a metal tank full of mineral or vegetable oils.

The type of heating system causes the oil to boil. This results in steam, which warms your home during cold weather.

The oil-filled heater radiator is a heat-exchange device that uses oil as its working fluid.

Central heating system comprises two tanks: the radiator and the auxiliary tank.

The radiator is the main tank. It holds the oil, which is circulated through the system and the auxiliary tank holds the water.

Oil heats the water within the tank, then flows through the radiator to be cooled. The cooled water then re-enters the auxiliary tank.

The water-filled space heater radiator is an example of a heat-exchange device.

Oil-Filled Radiators: Why it is more cheaper?

1. Oil filled space heater radiators are perfect for people that require a higher level of directional heating and cooling downtimes and for those who live in hard water areas. As the water will help to prevent the build-up of limescale within the system.

2. Oil-filled radiators are cheaper than the other radiators because they cost less to produce and they work on a simple design.

3. Work on simple design because they have a lower running cost. This is the most popular type of heater, depending on adjustable heating modes.

4. Oil-filled radiators are better than their counterparts because, unlike heat pumps, they can generate heat and utilise a lot of heat from a small surface area.

5. Oil-filled radiators are more energy-efficient than air-conditioning, allowing you to save money on your monthly energy bill. They are also more environmentally friendly than standard radiators.

6. Filled with oil, the radiators have here a quiet operation and provide a steady thermal output. Cooling is not a problem for them because they can also be used in a closed room.

8. Oil-filled radiators are cheaper to run than electric heaters because oil-filled radiators do not require electricity to provide heat. Electric spacer heaters need electricity to function.

7. In addition, they are very long-lasting and durable, so they have a long life when used regularly.

In order to provide a more flexible use, they have been developed so that they can be installed.

Why Oil Filled Radiator are Energy efficient?

Oil filled radiators are energy efficient because they keep the heat in your room. They are very easy to find since you can find them at most home improvement stores.

An oil filled portable heater will use between 3 to 5 periods more electricity than an equivalent electric radiator.

Because there is no need for a traditional fan heater to circulate the hot air throughout the whole room. There is only one way into the room and out again.

When air enters the room via this path, it passes over the hot surfaces, thus providing sufficient radiant heat transfer.

When it leaves the room via the same route, the cooler air replaces the warmer air, causing the difference between the uniform temperature outside and inside the room to decrease.

It, therefore, follows that the warm temperature remains constant, and the house does not become colder if the space heater stops operating.

Benefits of using Oil-Filled Radiators

Radiators have been a popular choice amounts of heating systems for several years now because of their energy efficiency and energy savings.  

Oil-filled radiators are very efficient, especially in heating small rooms with minimal floor space. They are often used in the home to provide warmth during the winter months.

Oil filled radiators have been around for a long time now and they have been given a new lease on life because of their ability to provide a more comfortable instant heat output and the fact that they have been found to be more energy-efficient than their predecessors.

The government has backed these benefits up, which have been trying to encourage homeowners to make use of oil-filled radiators rather than the older style of efficient heating systems.

  • They offer instant extra heating power/cooling.
  • Can maintain constant temperatures throughout the year.
  • Have low maintenance costs.
  • Provide greater efficiency levels compared to electric models.
  • Don't emit any toxic fumes or gases into the air.
  • Can last longer.
  • Oil filled space heater are energy efficient. They are effective in maintaining the desired room temperature while also operating at the lowest possible energy costs.

Last words

In general, oil filled radiators are less expensive to run than electric heaters, but they are more expensive to install. It is important to note that what you are trying to calculate is not the cost to run the device, but the cost to heat the space. This will change depending on your geographic location, insulation, and other variables.

If you are looking to save as much as possible on your heating costs, an oil filled radiator could be the best option for you.

Article Written & Fact Checked By


My name is Nathan Walters and I used to be a Mystery Shopper in my previous life. I love pizza, my 3 cats and fine wines! I also have a strange yet satisfying addiction to Netflix binges :) I am the Director of Best Reviews. I'm blessed to have a team of professionals in most fields who review and test products. Feel free to send me a message using the contact page!
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