Best Oil Filled Heaters – Top Models Reviewed & Compared

Few space heaters are as powerful and energy-efficient as oil heaters. They’re a fantastic way of keeping your house warm with a minimal investment in electricity and, because they use radiation to work instead of fans, they don’t change the humidity in their surroundings, making them a great choice for people with breathing problems.

The lack of fan also ensures this type of heaters are some of the quietest, making them an excellent choice as bedroom and office heaters, where they’ll create quite a lot of heat without being a distraction.

Oil filled heaters are also more powerful than your average electric or fan heaters, as they’re capable of heating up larger rooms for a longer period of time. They do this by radiating heat through the room, rather than directing a blast of air in a specific direction. This may make them look less powerful than other heaters but, we assure you, once you’ve let the heater work for a while it’ll spread heat evenly through every corner of the room.

In the following list, we’ll take a look at the Top 10 best oil filled space heaters in the market; we’ll talk about their features, their characteristics and the things we liked the most (and the things we didn’t liked) about them.

10 Best Oil Filled Heaters - Comparisons

Best Oil Heaters in 2020 - Reviews

If you’re on the hunt for the perfect oil-filled heater, we hope this list can help you make your final choice.

Delonghi TRN0812T Oil Filled Eletric Heater

A compact and portable space heater that works with a combination of oil and electricity, this heater is perfect to heat up small rooms through the winter months.

Because of its small size, it can be easily moved from room to room or placed in small places, making it a great choice for dorm rooms, bathrooms and the like. 

The small size also makes it very easy to store during the summer, saving you a lot of storage space during those months. 

With 96 programmable settings, this heater is one of the most versatile out there and will guarantee that you get exactly the functions you want, all with a charming little design that we’re sure you’ll love. 

This heater comes with a variety of safety features that makes it a good choice for any household: It has a GFI plug that makes it safe to use in the bathroom, an anti-overheating setting that will shut it off if it starts getting too hot and an anti-freeze setting, that’s perfect for the coldest months of the year. 

This heater also comes with eco-friendly features, though it’s worth nothing that it takes longer to heat up a room when these are in use. 


  • Energy efficient
  • Almost completely quiet (except on the high setting)
  • Grants you a lot of control over the temperature
  • Portable
  • Fun design
  • Can heat up rooms reliably


  • Takes a while to heat up rooms
  • It gets pretty hot to the touch
Honeywell EnergySmart Electric Oil Radiator

With a sleek black design that makes it perfect for blending in the background, this oil filled heater is perfect if you’re looking to warm up medium rooms efficiently and for long periods of time.

As similar models, this unit is surprisingly quiet and you’ll find yourself even forgetting its there. That said, it can make a few popping noises when the radiator is at its max power, so keep that in mind.

This heater comes with a variety of adjustable heat settings that give you complete control over the temperature in your home, and while it’s heavy and rather cumbersome, it does come with wheels that makes moving it a lot easier.

This heater also comes with a timer that lets you keep it running for up to 12 hours. Safety wise, this is a very reliable heater, though it does get hot to the touch so keep your hands away from it whenever it’s in use.

Some of the safety features include a tip over switch off function, an overheat protection function and a heavy duty cord that will last for generations.

Since this is an oil filled radiator heater, it takes a while to heat up and radiate heat around the room, but once it gets going it’ll be able to keep your room toasty and comfortable for long periods of time without any extra input. 


  • Sleek and elegant design
  • Reliable
  • Easy to use
  • Very energy efficient
  • Can heat up large rooms
  • Almost entirely quiet
  • Safe to use


  • Heavy and cumbersome
  • The cord could be longer
  • Gets very hot to the touch
Great Value Company GVC Mini 5-Fin Oil Filled Radiator

It’s not every day that great value is featured in lists such as this one but this and affordable radiator heater is here to change that.

While not the most versatile out there, as its’s only equipped with a single heat setting, it’s certainly efficient, capable of warming up medium to small rooms with little to no issue.

Despite its small size, it can be surprisingly noisy, though not as much as fan heaters. That said, don’t expect as much power as the one you’d get from larger heaters.

Because of its small size, and the integrated handle, this heater can be easily carried around and placed in different rooms. This not only makes it versatile but also easy to store during the hotter winters.

Despite only having a single heating setting, it does have different temperatures, so you at least have some degree of control over how much heat you’ll get from this heater. That said, this heater is still fairly simple so don’t expect much.

Safety wise, this heater is very reliable though you should be careful when using it, as it doesn’t come with the same safety features as similar heaters.


  • Affordable
  • Easy to use
  • Powerful
  • Portable
  • Very easy to clean


  • Not enough safety features
  • Not a lot of temperature control 
  • Gets very hot to the touch
Optimus h-6011 Portable Oil Filled Radiator Heater

An affordable option for those of you looking to warm up their homes, this heater comes with 3 different heating settings, each of which has different energy needs, which will allow you to save energy when in use.

This heater is also equipped with an automatic thermostat, that will let you program it so that it works exactly as you want it to, and various safety features, making it a good choice for home and office alike.

While large, this heater does come with a sturdy base that lets you move it around with ease. It also has a special area to store the cord, making it easy to put away when not in use.

This is one of the most affordable items in this list and yet it’s also one of the most reliable but the overall design does leave some to be desired, as it can tip over if you’re not careful, and in fact, we highly recommend making sure the heater is properly balanced before using it.

If you’re worried about tipping over, don’t be. This heater comes with a sensor that will automatically shut it off if it’s accidentally tipped over. 


  • Affordable
  • Easy to use
  • Comes with safety features
  • Quiet, even when in use


  • Can tip over if not properly balanced
  • Has an odd chemical during the first few uses
  • Gets very hot to the touch
NewAir AH-400 Portable Space Heater

If what you’re looking for is portability and discretion, this oil filled heater is an excellent choice.

Small and slim enough to easily be placed under a desk or table, this is a perfect heater for office spaces, as not only is it compact but also quiet, capable of working for hours without making a noise.

Despite its small size, this heater heats up quite fast and comes with a variety of heating settings, allowing you to set up the heat exactly as you want it.

Do be careful when using this heater, as it does get quite hot when in use and it’s easy to accidentally burn yourself if you aren’t careful about where you put your legs.

Because of its small size, it can’t heat up large rooms, but it’ll do the job just fine when it comes to smaller areas.

While it would be tempting to place it in a bathroom, we don’t recommend it, as the cord is too short and not designed for this specific purpose.

As similar heaters, it comes with a tip over safety switch and has overheat protection, though you should still keep an eye on it whenever possible.


  • Affordable
  • Portable
  • Perfect to place it under desks and tables
  • Fun design
  • Easy to use
  • Heats up very fast
  • Quiet when in use


  • Can be somewhat unstable
  • Not very powerful
  • Hot to the touch
Honeywell 7 Fin Oil Filled Radiator Heater

A sturdy and efficient machine, this oil filled heater is perfect for medium and large rooms, thanks not only to its power but also to the built-in safety features and thermostat, which allows you to program it so that it keeps your room warm no matter what.

Built to last, this heater is coated in a rust-free enamel finish and has solid steel parts that guarantee no oil leaks, even if you accidentally drop the heater.

With 3 different heating settings, one of which allows you to save energy (and money in power bill) this is an efficient little heater that’s guaranteed to keep you warm, even in the coldest nights.

Because of its size, it can easily heat up medium to large rooms, but it can take a while to do so, as it doesn’t work with a fan.

That said, because this heater doesn’t work with a fan it’s quite silent, even when in use, making it the perfect choice for bedrooms.

There seems to be an issue with some of the heaters of this model. While many people report that they work wonderfully, others report that it overheats, so if you get this heater make sure not to leave it unattended right away.

If it does overheat, you can always call the manufacturer, as this heater comes with a 3 year warranty and will be replaced if it’s not working as it should.


  • Portable
  • Efficient
  • Looks great
  • Comes with a variety of safety features
  • Can heat up large or medium rooms


  • Some users report overheating issues so make sure not to leave it unattended when straight out of the box. 
  • Can get very hot to the touch
Delonghi TRDO715T Oil Filled Radiator

With a simple and discrete design that makes it easy to ignore, this oil filled heater is an excellent option for those looking to warm up their homes efficiently and safely.

While it doesn’t look different to other, similar heaters, it is permanently sealed, ensuring no oil leaks or need to replace it.

With 96 different heat settings and a 24-hour timer, this model is as versatile as they come, capable of keeping bedrooms exactly as warm as you want them.

Because this is a radiant heater, it will take a while for it to truly get warm, but it does so quietly and comfortably without drying the environment, which is always a plus if you happen to have any breathing problems.

Large and bulky, the heater can be a bit complicated to lift if you don’t have the strength for it but it comes with versatile foldable wheels that make transportation a lot easier.

Safety wise, this heater offers the typical overheat shut off, but there doesn’t seem to be any tip-off switch, so careful when you’re using it.

Since this is a radiant oil filled heater, it gets quite hot to the touch so make sure to keep it away from anything flammable and don’t use it on top of carpets or things that might burn.


  • Looks great
  • Safe and easy to use
  • Energy efficient
  • Very versatile
  • Very quiet
  • Will start if temperatures drop below freezing


  • Heavy and a little too large
  • Gets very hot to the touch
Optimus H-6003 Portable Oil Filled Radiator Heater

If portability is what you have in mind, then the Optimus H-6003 is a great choice for you.

Measuring only 16 x 6 x 16 inches, this is one of the smallest articles in this list as well as one of the lightest, making it a great option for home and office alike, as well as a good heater for people with not a lot of upper body strength.

A very affordable option, this heater comes with a single heating setting, but this one can be adjusted to reach the temperature you like.

Because of its small size, it’s can be easily placed besides or even under a desk, though we suggest to avoid the later as it gets quite hot to the touch and may burn you.

Its small size also allows it to use less electricity than larger models, making it affordable in more ways than one.

This heater’s peculiar base keeps it from accidentally tipping over, which is a good thing because it doesn’t appear to shut off if it happens. Because of this, we don’t advice to leave this heater unattended.

It does turn off automatically if it starts overheating, though, which is always a good thing. Performance wise, it’s heats up surrounding areas quite well and does so quietly, but it doesn’t work well in large rooms. Remember, this is a personal heater, so treat it like one. 


  • Affordable
  • Portable
  • Easy to use
  • Quiet


  • Can tip over and it won’t shut off if it does it
  • Not particularly powerful 
  • Hot to the touch
Delonghi EW7707CM Oil Filled Radiator

A great choice for those of you looking to warm up large rooms, this is one of the most powerful items in this list, as well as one of the largest.

While not exactly discrete, the DeLonghi can keep your room warm all day long and does so quietly, thanks to the fact that this is a radiant heater as opposed to a fan heater.

Because of this, it takes a while to heat up rooms properly but, trust us, the room will be heated completely, making it a great choice for those of you who truly can’t stand the cold.

Made to last, every part of this heater screams quality and various parts of it are completely sealed to prevent oil leaks, making refills a thing of the past. Of course, this item isn’t exactly cheap, so keep that in mind.

If the price tag is a problem, rest assured that you’ll be able to save a lot of money on electric bills thanks to its “ComforTemp” button, which will allow this heater to keep a room at a stable temperature without spikes in energy.

Equipped with wheels, this heater can move around your home without any issue, but we encourage you to avoid touching it when in use, as it gets quite hot to the touch.

With only three heat settings, this isn’t the most versatile radiator out there but it’s quite easy to use and reliable, which earned it a place in this list.

Last, but not least, it comes equipped with a variety of safety features that will bring peace of mind to its owners.


  • Powerful
  • Can save energy
  • Looks good
  • Transportable
  • Easy to use
  • Reliable


  • Can get quite hot to the touch
  • Cumbersome
Insignia HTRFBK6 Oil-Filled Radiator Heater

While Insignia isn’t a very well-known brand, it brings a lot to the table with this digital oil´filled heater, perfect for large and medium rooms.

With a height of 26 inches, this isn’t the smallest of radiator heaters but it’s still quite easy to transport, thanks in part to its relatively small weight (18 pounds), the attached wheels that move in every direction and the built in handle, which lets you move this heater even while it’s still hot.

With its sleek and elegant black design, this heater will look great anywhere, be it your living room, bedroom or even office. Because it’s digital, it comes with a LED display that lets you know exactly what you’re doing and a remote, so you don’t even have to touch the heater to set the temperature just like you like it.

Amongst this heater’s settings, there’s an energy saving mode that will help your pocket and the environment. However, this heater is eco-friendly even if you haven’t selected that feature.

While this heater does give you the ability to select between a wide arrange of temperatures, it only works in 5 degrees increments, so keep that in mind.


  • Energy Efficient
  • Easy to use
  • Eco-friendly
  • Digital and comes with a remote
  • Looks good
  • The handle stays cool to the touch


  • Can be a little loud on the higher settings
  • Only works in 5 degrees increments
  • The body gets quite hot to the touch

We’ve come to the end of our review, thank you very much for reading. If you found our review useful or you know of a oil filled radiator heater that needs to be featured here, let us know by leaving a comment! 

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David Valle

I started this blog to provide advanced material, guiding you towards a better and more comfortable fishing experience. I deliver more than fishing gear guides, and motivate people to hit the water!