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The 8 Best Oil Filled Heaters 2024: Reviews and Buying Guide

You can find a wide range of heater models out there since these are highly handy and important during winters. One of the most efficient types of heaters is an oil-filled heater. Just per the name, these have oil-filled inside them and offer the following features that can be handy while heating up your room:

  • Power Rating: Just like any other room heater, oil-filled heaters also come with a power rating. This rating is given as 600 watts or 800 watts depending on your model, where a higher rating results in better performance but also draws more electricity.
  • Temperature Range: Another way to get an idea about the performance of your oil filled heater is to check its temperature range. It is given as 50°F to 80°F or 60°F to 90°F that differs from model to model. A higher temperature range is always better during harsh winters.
  • Coverage Area: For those of you who want to use an oil-filled heater in a large room, checking the supported coverage area is highly important. This rating tells you about the maximum room size a given heater can warm up and includes options like 150 square feet or 250 square feet, out of which the latter one is better for heating up a large room.

Since keeping your room warm during winters is highly important, you can find a wide range of oil-filled heaters out there. And today, we present you with some of the best oil-filled heaters along with all their important details. This even includes a detailed “Buying Guide” for easily differentiating between the different models out there and buying the perfect one after following this article until the end.

8 Best Oil Filled Heaters Chart

Oil Filled HeaterPower RatingCoverage AreaWarrantyBuy Now
PELONIS Oil Filled Radiator Heaters1500 watt230 square feet1 yearCheck On Amazon
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KopBeau Oil Filled Radiator Heater1500 watt650 square feet1 yearCheck On Amazon
Dreo Oil Filled Radiator Heater1500 watt300 square feet 1 yearCheck On Amazon
Kismile Oil-Filled Radiator Heater1500 watt600 square feetN.ACheck On Amazon
Check On Walmart
Costway Oil Filled Radiator Heater700 watt120 square feet90 daysCheck On Amazon
Check On Overstock
DeLonghi Oil-Filled Radiator Heater1500 watt45 square feet3 yearsCheck On Amazon
Check On Homedepot
Aikoper Oil Filled Radiator Electric Heater1500 watt--1 yearsCheck On Amazon
Comfort Zone Oil-Filled Electric Radiator Heater1200 watt144 square feet1 yearCheck On Amazon
Check On Overstock

8 Best Oil Filled Heaters Reviews

1. PELONIS Oil Filled Radiator Heaters

PELONIS Electric 1500W Oil Filled Radiator Heater

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PELONIS is a popular brand in home comfort providing safe and reliable home environment appliances (from the most advanced gadgets to the most convenient home appliances).

This PELONIS oil-filled radiator heater quietly and evenly distributes the heat for an area of up to 230 square feet. It offers efficient heating with its 3 heating modes (900W/1500W/ECO mode) and has 5 temperature settings (65 – 85° F) to set optimum temperature.

Also, it features an LCD screen, remote control, a programmable thermostat, and an in-built timer (10 hours) that allows its user to customize the settings for maximum warmth and efficiency. It is a compact and portable design that comes with 4 swivel caster wheels with 360-degree rotation to move from one room to another easily.

Coming to its safety features, it has a power indicator light, overheat protection, built-in safety, and a tip-over safety switch that auto-shut-off the heater if knocked accidentally. Its ultra-quiet operation won’t disturb work, sleep, or chatting. Apart from gentle and long-lasting warmth, this heater comes with a 1-year manufacturer warranty.

Best Features:

  • 1500W power rating
  • Coverage area of 230 square feet
  • Backed by a 1-year warranty
  • 3 heat settings (High/Low/ECO) for constant heating
  • 10-hour timer
  • Comes with a remote controller
  • Completely sealed oil
  • Offers multiple safety features


  • Safe and convenient
  • Multi-dimensional heating
  • Energy efficient
  • Easy to move around with 360° swivel wheels
  • Noiseless quiet operation without drying air.


  • Nothing much

Buy Now From Amazon    Buy Now From Walmart

2. KopBeau Oil Filled Radiator Electric Heater

Aireplus 1500W Oil Filled Radiator Electric Heater Aireplus is a relatively small brand that specializes in developing efficient oil-filled radiators using its patented design for providing ideal warmth without overheating the room.

This is one of the most powerful heaters in our list with 3 heating options – 600w, 900w, and 1500w. With these options, you can set temperatures between the range of 40 to 950F to get the perfect warmth depending on ambient temperature. Using this range, you can warm an area of 400 to 650 square feet.

There is also a manual temperature adjustment feature that increases or decreases the temperature by 10F. To make your life further easier, the heater comes with an Eco mode that allows for automatic temperature adjustment. The digital thermostat ensures automatic On/Off of the heater by comparing the ambient temperature and the preset temperature.

Aireplus’s oil filled heater features a big and elegant control panel with soft touch buttons. The buttons are clearly indicated of their respective functions using large icons for easy operation. The heater has a quiet operation that creates a peaceful environment without any noise.

The caster wheels allow for easy movement of the heater within your home. Four your family’s safety, the heater is equipped with an overheating and tip-over protection along with a child lock function.

Best Features:

  • Maximum power rating of 1500w
  • 400 to 650 square feet coverage area
  • 24 hours timers
  • Multiple safety features
  • 1-year warranty


  • Powerful heating option
  • Adjustable temperature range
  • Energy efficient
  • Easy and safe to use
  • Quiet operation


  • None

Buy Now From Amazon

3. Dreo Oil Filled Radiator Heater

Dreo Oil Filled Radiator Heater

Dreo is a known space heater brand that manufactures heaters with newer technologies and amazing features that help you to have warmer, cozier, and safer winters.

This Dreo oil-filled radiator heater is a sleek, portable, energy-efficient, and stylish heater that uses spindle-shaped openings, M-shaped heating fins, and extended fins for an even and widespread of warmth (360-degree circulation) across a room of up to 300 square feet. Its control panel with LED display offers a host of settings in 4 heating modes (1500W/900W/600W/ECO), 24-hour timer, thermostat (40 – 95° F), or child lock to make it quite easy to operate.

Its 3 working modes and ECO mode will optimize the efficiency and thereby reduce its heating power bill. Since it comes with a remote control, you can get access any of its functions from anywhere up to 19 feet. While the mute function on the remote can turn off sound and let you enjoy the warmth without drying out the air.

With its universal wheels and recess at its back, you can move it in all directions and take it to any place you want to use them like basement, living room, or garage. It is quite easy to assemble and has the highest purity internal diathermic oil which is properly sealed to prevent leaking or evaporating of the oil from the heater.

Coming to its safety features, it offers multiple safety protections like overheat sensor, safe child lock, tip-over switch, V0 flame retardancy, wraparound protection, and is UL certified. Another great thing is that it is backed by a 1-year long manufacturer warranty.

Best Features:

  • Adjustable temperature (40 – 95° F)
  • Efficient heating capacity with 4 heating modes
  • Multiple safety features
  • Easy to move around in all directions
  • Coverage area of up to 300 square feet
  • Built-in timer function (1 – 24 hours)
  • Comes with a 1-year long warranty


  • Energy-efficient & tool-free assembly
  • Adjustable temperature
  • Easy, and safe to use
  • ETL & UL certified
  • Durability quality
  • Quiet operation


  • Nothing much

Buy Now From Amazon

4. Kismile Oil-Filled Radiator Heater

Kismile Oil-Filled Radiator Heater Check Price On Walmart

If you are looking for an impressive makeover to your home with captivating appliances, then the Kismile brand is where you start. The sophisticated radiator heater from this brand provides three heating modes suitable for rooms of different sizes. The highest mode is 1500W followed by 900W and 600W.

The heater features a smart thermostat using which you can control the temperature the heater provides. It also comes with an overheat protection that turns the heater off when it detects unwarranted high heat. Moreover, its special tip-over protection automatically shuts the heater off to prevent damages when there is a tilt in its angle.

With measurements 25.7 x 14.9 x 6.3 inches in dimensions, this compact-sized heater is also lightweight with an 18.59-pound weight. You can carry it around effortlessly using its built-in handle or by sliding it with its 4 convenient wheels.

Best Features:

  • 1500W power rating
  • Cord storage
  • Three heating modes


  • Smart thermostat
  • Portable
  • Safe and convenient


  • No remote control
  • No information on warranty

Buy Now From Amazon    Buy Now From Walmart

5. Costway Oil Filled Radiator Heater


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Costway is yet another smaller and affordable brand of oil-filled heaters out there that is known for making cheap yet decently powerful models, which should be considered if you are on a budget.

This Costway oil filled radiator heater is quite similar to the previous Air Choice one in many ways. For starters, you get the same power rating of 700 watts with it. Not only the power rating is the same, but you also get the same coverage area of 120 square feet that is quite decent for small rooms and expected at the given price tag.

Unlike most other budget options out there, this one even offers a pretty good build quality to the user. Although, the 90-day long warranty might be slightly less for most users out there. Its controls are quite easy to use that allow you to change the temperature of this 7 fin oil filled heater for flexibility.

Best Features:

  • Power rating of 700 watts
  • Coverage area of up to 120 square feet
  • 90-day long warranty


  • Includes a decently performing power rating
  • Offers adjustable thermostat on the front
  • Low price tag for a high value for money


  • Only a 90-day long warranty

Buy Now From Amazon    Buy Now From Overstock

6. DeLonghi Oil-Filled Radiator Heater

DeLonghi Oil-Filled Radiator Heater

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DeLonghi is a popular brand well-known for providing high quality kitchen and home appliances.

Their electric space heater is efficient and is capable of warming up rooms up to 45 square feet. It is equipped with patented thermal slots design which decreases the heat flow while maintaining low surface temperature.

With three heat settings and adjustable thermostat, it lets you customize the heating setting according to your preference. To ensure safety, this heater comes with thermal cut-off and anti-freeze setting which prevents freezing pipes.

Because of permanently sealed oil reservoir, it doesn’t need any refilling in the future. Its whisper-silent operation ensures peaceful sleep at night without any disturbance. With dimensions of 14 x 6 x 25 inches, it doesn’t take much space.

Best Features:

  • 5,120 BTUs
  • Three heat settings
  • Patented thermal slots


  • Suitable for rooms up to 45sqft
  • Prevents frozen pipes
  • Easy to use
  • Takes less storage space
  • Maintenance free


  • Gives off burn or chemical like smell

Buy Now From Amazon    Buy Now From Homedepot

7. Aikoper Oil Filled Radiator Electric Heater

Aikoper Oil Filled Radiator Electric Heater1Aikoper Space Heater for Indoor Use delivers impressive performance, making it an ideal solution for dealing with chilly winters or enhancing warmth in colder rooms. Enjoy a cozy living environment without compromising on safety or energy efficiency.

Aikoper Oil Filled Radiator Heater, a 1500W electric portable space heater designed for optimal indoor comfort. With four adjustable heating modes (600W, 900W, 1500W, and ECO), this heater quickly transforms your space into a warm haven. The V0 flame retardant materials and built-in safety features, including overheating and tip-over protection, prioritize your safety by automatically shutting off in case of accidents.

Experience comfortable and quiet heating with 360° hot air circulation, ensuring warmth throughout the entire room without dryness or noise. The user-friendly controls, precise temperature adjustments accurate to 1°, and a 24-hour timer make it easy to tailor the heating experience to your liking. The oil heater’s ECO mode, with a temperature range of 40-95°F, enhances energy efficiency, providing warmth while saving on energy bills.

Best Features:

  • Maximum power rating of 1500w
  • Adjustable temperature (40 – 95° F)
  • Four heat settings
  • 24 hour timer
  • Multiple safety features
  • 1-year limited warranty


  • Portable design with wheels for easy mobility
  • Safe to use
  • Remote Control
  • Silent


  • Thermostat is not accurate

Buy Now From Amazon

8. Comfort Zone Oil-Filled Electric Radiator Heater

Comfort Zone Oil-Filled Electric Radiator Heater

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Comfort Zone is a brand that has products that would blow your mind with unparalleled build and quality. 

The electric radiator heater from this brand has three heat settings ranging between the highest 700W and lowest 500 W. You can select them both together to get a super high heat of 1200 W power.

With its sophisticated thermostat, you can control the temperature to match your requirements and mood. The heater features overheat protection that prevents damages due to overheating. Additionally, it also comes with a tip-over switch that automatically shuts off the heater when it senses an accidental tumble.

Measuring 16.54 x 5.31 x 22.24 inches in dimensions and weighing 15.8 pounds, the heater comes in a compact size and lightweight. You can fit this slim and stylish heater in any room you like and it easily blends in with other appliances. As the heater rests on 4 sturdy wheels, they will make it easy for you to move it from one place to another without much hassle.

Best Features:

  • 1200 W highest power
  • Three heating modes
  • Sophisticated thermostat
  • 1-year warranty


  • Versatility
  • Compact size
  • Portable
  • Silent


  • No remote control

Buy Now From Amazon    Buy Now From Overstock

Buying Guide For The Best Oil Filled Heater

While most electric room heaters use a heating coil to warm up your room, an oil-filled heater uses radiators and warm oil inside it to heat up your room. This makes them highly efficient and quite easy to use when you also consider the additional features offered by them.

Speaking of features, we have already mentioned most of their common features along with the various oil-filled heaters mentioned in this article. Although, if you want to know more about such room heaters, we are here with a detailed buying guide. It will take you through all of the important points and factors that you need to know before buying the perfect oil filled heater:

1. Power Rating

One of the most important things to check before buying any kind of heater for your room or office is its power rating. This simply tells you about the performance output of a given heater. Hence, most of the oil-filled heaters out there come with a power rating that is given in watts.

This includes options like 700 watts, 100 watts, and even 1500 watts depending on the model that you are buying. When you compare all of these options together, the 1500 watt power rating is the best for the highest heat output. Although, the power rating also tells you about the power consumption or electricity consumption of a rating.

Hence, you should also keep that in mind before buying a heater as a higher power rating is going to add up in your electricity bill.

2. Temperature Range

You can also check the temperature range of an oil-filled heater to get an idea of its performance. This is simply due to the reason that these heaters are meant to raise the temperature of your room.

Hence, if it has a higher temperature range, it will work better in terms of heating up your room. While some models include a temperature range of 50°F to 80°F, others might have a temperature range of 50°F to 90°F. As you would expect, the higher rating is the better one, and you can choose either as per your needs.

3. Coverage Area

While most people use an oil-filled heater in their bedroom, some of you might be using it in a different room. And if it is a pretty large room, you might face performance issues down the road due to the larger room size.

Hence, checking the coverage area rating of your oil filled heater is highly important as it tells you about the size of the room it can properly heat. It includes coverage area ratings of 140 square feet or 200 square feet depending on the model that you buy. As you would expect, a higher coverage area rating is better for heating up large rooms quite easily.

4. Controls

All of the features of oil-filled heaters mentioned till now are highly important to check. But since you will not be using your heater at full power at all times, you should be able to change them if needed. Hence, most oil-filled heaters come with controls in the form of a thermostat.

Many models also include a display on the front for easily checking the temperature if needed. Apart from that, you can even find remote controllers included with a few models. This can be quite handy when you are using an oil-filled heater in a large room and want to change its settings from far away.

5. Reliability and Warranty

Just like any other home appliance, you would want your oil filled heater to be highly reliable since it lasts for a long time. Therefore, you should look out for oil-filled heaters that offer a great build quality to the user.

Other than that, you can also check the warranty duration offered by any given oil filled heater. Most of the models in this article, as well as available on the market, come with a 1-year long warranty. Although better and more reliable ones also offer a 3-year long warranty so that you can keep using it for a long time.

Best Oil Filled Radiator Heater- FAQs

1. How long does it take for an oil-filled radiator to heat up a room?

Ans: Oil-filled radiators may take some time to reach their maximum heating capacity. Generally, expect noticeable warmth within 15-30 minutes after turning the heater on.

2. Can I leave an oil-filled radiator on overnight?

Ans: Yes, many models are designed for continuous use and can be left on overnight. Ensure the heater has safety features like overheat protection for added peace of mind.

3. What safety features do oil-filled radiators have?

Ans: Common safety features include overheat protection and tip-over switches. These mechanisms ensure the heater automatically shuts off in case of overheating or accidental tipping, enhancing user safety.

4. What’s the difference between oil-filled radiators and other types of space heaters?

Ans: Oil-filled radiators differ from other heaters by using thermal oil as a heat reservoir, providing longer-lasting warmth even after turning off. They are also known for their silent operation.


If it gets really cold in your area during winters, then using blankets and winter clothing might not be enough. In such cases, using a room heater like an oil-filled one is highly important. Thus these are highly handy; we have already mentioned the best oil-filled heaters in this article.

In order to help you out in choosing the best one, we have mentioned all their features and options as well as other details. You can even find a detailed buying guide to easily differentiate between these. If you are still not able to decide, simply choose an oil-filled heater from our recommendations:

  • If you want the best performing model mentioned in this article, you can simply go with the Comfort Zone Oil-Filled Electric Radiator Heater. You get the highest power rating of 1200 watts along with it. This allows it to offer a coverage area of 144 square feet.
  • Although, in case you are on a budget, the PELONIS Electric Oil Filled Radiator Heater is your best choice. It offers a decent power rating of 1500 watts, 3 heating options, and 5 temperature settings that offer multidimensional heating with a coverage area of 230 square feet. Also, it comes with a 1 -year long warranty apart from its affordable price.
  • You should also consider the Aireplus 1500W Oil Filled Radiator Electric Heater as it offers great performance with its 1500 watts power rating and a coverage area of up to 650 square feet. But unlike most other options out there, this one comes with a remote control for ease of use.

Make sure to share your thoughts in the comments section. You can also post any questions down there if you have any!

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