8 Most Decent Oil Filled Radiators To Keep Your Home Warm and Energy Bills Low

Reviewed by
Last updatedLast updated: January 31, 2021
House Weather is reader-supported. We may earn a commission through products purchased using links on this page. Learn more about our process here

When winter looms, it doesn’t matter if you’re a fan of Game of Thrones or not – everyone already knows what’s coming! In order to survive through the winter months, you need to do everything you can to keep your home adequately warm. Energy-efficient, powerful, and quiet, it’s no surprise the best oil filled radiators are starting to gain more popularity among homeowners. Moreover, the fact that they work with radiation rather than fans means they can heat up larger spaces for a more extended period of time, something everybody will definitely want.

However, oil filled radiators are quite still new on the market, so many prospective buyers are always confused when trying to choose the perfect model. With that in mind, we have dug the ground and handled the dirt on your behalf. As a result, we’ve assembled a list of the top eight oil filled radiators on the market currently. Of course, we did this compilation while keeping in mind some important features like wattage, maximum heating power, heat settings, warranty, dimensions, and weight.

Top 8 Oil Filled Radiators Review 2020

Our team of researchers has invested tens of hours into research, reading customers reviews, watching videos, and finding all the available information to bring the best options to you. This guide comprises a comparison table, comprehensive reviews of the products we chose, and a general buying guide that’s designed to help you know which oil filled radiator will be perfect for your home. In the end, there is also an FAQ section in which the most commonly asked questions have been thoroughly answered.


DeLonghi EW7707CMEditor’s Choice

  • Heating power: 1500W
  • Fins: 7
  • Dimensions: 14 x 6 x 25 inches
  • Weight: 25 lbs.
  • Warranty: 1-year limited

More features: anti-freeze setting; three heat settings; adjustable thermostat

Thanks to its 1500-watt output, the DeLonghi EW7707CM Oil Filled Radiator is a great machine that is capable of providing constant heat for a medium or large-sized room. It also has a quiet operation which allows you to go about your activities without worrying about the heater’s noise. And the patented assemblage of this machine features steel construction, which provides high quality and durability. In order to prevent leaks and ensure you don’t have to refill the machine, the oil reservoir is sealed permanently. With that being said, this model is probably the best DeLonghi oil filled radiator.

This machine also aids energy economy, as it has a button which automatically maintains the room’s temperature at a comfortable level. The heater also comes with an adjustable thermostat which enables you to choose from three different heat settings, depending on the warmth level you desire at a particular period. Apart from that, the unit comes with SmartSnap wheels, which help you move the unit around more easily. Fortunately, no tools are needed in order to attach the wheels, as they are designed to just snap into place.

Furthermore, the DeLonghi EW7707CM Oil Filled Radiator comes with a thermal shut-off feature, which prevents overheating and allows you to enjoy your appliance for many years. Besides, the machine also has long radiator tubes which provide you with a significant amount of heat, while maintaining for the heater safe surface temperature. Although it still gets pretty hot to the touch when it works for an extensive period, that’s just about the only shortcoming it has. It’s a great machine that’s guaranteed to give you a lot of value for your investment.

What we liked:

  • Powerful operation
  • Energy-efficient
  • Has movement-aiding wheels
  • Easy to assemble
  • Useful safety features

What could be better:

  • Basic controls; doesn’t display temperature

PELONIS PLN978-BThe Most Versatile Model

  • Heating power: 1500W
  • Fins: 7
  • Dimensions: 11 x 14.25 x 25.2 inches
  • Weight: 19.45 lbs.
  • Warranty: 1-year limited

More features: tip-over and overheating protection; remote control; 40-95F temperature range

With its multiple heating choices, the PELONIS PLN978-B is probably the most versatile model on this list. It has three different heating choices: with 1500 watts, 900 watts, and 600 watts of power output and allows you to choose the exact temperature in the range of 40-95 Fahrenheit based on your heating needs. Indeed, this model is perfect for medium to large-sized rooms that require constant warmth. It’s absolutely capable of providing that warmth you need while operating very silently without disturbing you or your neighbors with any operational noise. Not only that, but the machine also comes with caster wheels that aid transport from one room to the other.

Like most top models, this one also comes with safety measures, which include tip-over and overheat switch to prevent accidents. Apart from that, it also comes with an anti-freeze function to keep your pipes from freezing, which is excellent for families with kids and pets. The unit also has an ECO mode, which could automatically adjust the heat and temperature settings of the room to maximize energy consumption. The machine comes with a well-marked button and a large LED display for simple and clear operation.

With a remote control that allows you to adjust whatever you want to adjust without needing to leave your cozy sofa or bed, this model is definitely the real deal. It also has a 24-hour timer, which offers you total control on when you want the machine to operate and when you don’t. However, it would have been better if the remote could display the mode and temperature. Also, the operation of this machine is very slow, so it may take some time before it’s able to completely heat up the entire room.

What we liked:

  • Very versatile
  • Eco-friendly mode
  • Has an LED display
  • Comes with caster wheels for easy movability
  • Low operational noise

What could be better:

  • Rather slow operation
  • The remote doesn’t display modes/temperature

Honeywell HZ-789Most Energy-Efficient Model

  • Heating power: 1500W
  • Fins: 7
  • Dimensions: 13.6 x 9.5 x 25.2 inches
  • Weight: 21 lbs.
  • Warranty: 3-year limited

More features: 1-12 hour auto-off timer; EnergySmart mode

Being an oil-filled radiator that has a bit of everything, the Honeywell HZ-789 Whole Room Heater is one model every house should definitely own. Energy-efficiency is the most significant point of oil-filled radiators in general, and this heater doesn’t’ disappoint at all when it comes to that, thanks to its EnergySmart technology which maximizes the unit’s ability to save your money. It also has a handy timer, which could prolong the life of the machine as you wouldn’t have to overwork it. For even more flexibility, it also comes with three different heat settings, so that you can choose the one that fits your current needs.

Moving on, this machine also comes with many safety features, all of which only add to the overall value of the product. First of all, the included power cord is of high quality and its three-prong design protects the entire machine against overheating. Another very effective safety feature is the included tip-over switch which helps prevent the occurrence of accidents. Apart from being safe to use, this model also operates quietly, which offers users to fall asleep in a cozy heated room peacefully. Its digital controls are also easy to set up and use while the included wheels glide effortlessly for portability.

The Honeywell HZ-789 has high and low settings, and it consumes 1,500 watts and 750 watts respectively on both settings. It’s also backed by a three-year warranty, which covers you in case of any defect. However, according to most users, the included wheels aren’t durable and break easily, so you might want to keep that in mind and handle the appliance carefully. Asides that though, this is an excellent unit all-round, and it definitely won’t be a bad choice for any home.

What we liked:

  • High power output
  • Safety features
  • Maximum energy-efficiency
  • Comes with a three-year warranty
  • Easy-to-use digital controls

What could be better:

  • The wheels break easily

Insignia HTRFBK6Largest Capacity

  • Heating power: 1500W
  • Fins: 7
  • Dimensions: 25.2 x 14.2 x 11 inches
  • Weight: 17 lbs.
  • Warranty: 1-year limited

More features: remote control included; safety tip-over switch

We know Insignia isn’t one of the most popular brands in the industry, but this particular model from them brings a lot to the table. Measuring about 26 inches in height, this model isn’t really a small unit, but that hasn’t hampered its transportability, thanks to its fairly lightweight construction, the built-in handle, and the included wheels. While the handle allows you to move the unit while it’s hot, the multi-directional wheels let you move it from one room to the other. It also sports an elegant and sleek black design, which makes it a great fit anywhere it’s put.

Due to its digital operation, the Insignia HTRFBK6 features a built-in LED display that allows you to know precisely what you are doing. In addition to that, it comes with a remote, which means you can easily set the temperature without needing to touch the unit at all. Amongst the settings of the heater, there is an energy-saving mode that is designed to help reduce your energy bills at the end of the month.

Moving on, the wheels included in this unit have metal screws and are on metal brackets, so they will be challenging to break in comparison to those made of plastic. While this heater allows you to choose between an extensive range of temperatures, keep in mind that it works only in five-degree increments. Besides that, the body of the machine gets hot to the touch, which makes it difficult to move during operation.

What we liked:

  • Energy-efficient and eco-friendly
  • Easy to use
  • Has a beautiful design
  • Has digital controls
  • Comes with durable wheels and a handle

What could be better:

  • Only works in five-degree increments
  • The body gets too hot to the touch

DeLonghi TRD40615EBest Design

  • Heating power: 1500W
  • Fins: 6
  • Dimensions: 16.5 x 10.3 x 26.1 inches
  • Weight: 26.6 lbs.
  • Warranty: 1-year limited

More features: for rooms of up to 144 sq. ft.; ECO function; digital controls

Delonghi is a manufacturer of radiators, and the DeLonghi TRD40615E is yet again another excellent model from the company. Featuring a heating power of 1500 watts, this unit is can easily handle a medium or large-sized room as well. Moving on from its powerful operation, it also comes with an anti-freeze function, which can be used to ensure that your pipes will not freeze in the cold period, particularly if you have a vacation house or you are away from your home for a long period of time. Just put the unit beside your pipes’ most vulnerable regions, choose this function, and it will start automatically as soon as the temperatures fall below 44 degrees Fahrenheit.

The casing of the unit is also produced from patented premium-quality steel, which offers as much as 40 percent more surface for the warm air to radiate from, which leads to quicker delivery of warmth than other oil-filled units. Also, the radiator comes with a digital control panel which gives you the chance to set the timer, adjust the values of the thermostat, and choose the heat settings. There is an ECO feature on the machine as well, which works by adjusting the heat settings and power to maintain the temperature of the room while consuming less energy and reducing your electricity bills.

Moreover, the unit comes with patented smart-snap wheels, which aid the movability of the heater around the house. The wheels just snap into place and don’t require any difficult assembly. Keep in mind, this machine takes more time to heat up than similar models, but it makes up for the continuous, powerful, and even heating.

What we liked:

  • Has a larger surface
  • High heat output
  • Effective safety feature
  • Digital control panel
  • Low-energy consumption

What could be better:

  • Takes much time to heat up

Tangkula Electric Oil HeaterBest Portable Model

  • Heating power: 1500W
  • Fins: 7
  • Dimensions: 14 x 5.7 x 23 inches
  • Weight: 20 lbs.
  • Warranty: 1-year limited

More features: overheating protection; power cord wraps around for storage

Durable, reliable, and energy-efficient, the Tangkula Heater is the right option for you if you are in search of a portable model for your home. Its energy efficiency means you can really rest easy knowing the machine will reduce your bills at the end of the month. The unit also comes with an adjustable thermostat control which enables you to select your room’s temperature according to your preference. And with the appliance’s super silent operation, it is the perfect choice for the chilly nights.

The fact that the appliance is also compact and lightweight means it can be taken wherever you go. If you want to enjoy the outdoors with your friends and family, or you wish to unwind in the living room, you can easily use this unit to heat up the place. The heavy-duty caster wheels it comes with also enable you to move it around the place easily. Moreover, the seven oil filled slots mean it’s much more energy-efficient than other models in its category, and it’s capable of handling a medium to large-sized room.

Like most other models on this list, this one also has a heating power of 1500 watts, which should be enough for a medium to large-sized room. The radiator has an auto shut-off function, which ensures that the unit doesn’t overheat. On the downsides though, it comes with a few. First of all, it has a short cord, which isn’t safe at all. Apart from that, the handle has a tendency to get extremely hot, which means you can’t move it around as soon as it’s turned on.

What we liked:

  • Casters aid easy movement
  • Excellent temperature controls
  • Auto shut-off function
  • High heating power
  • Energy-efficient

What could be better:

  • Very short cord
  • Handle tends to get hot

DeLonghi TRN0812TThe Safest to Use

  • Heating power: 1200W
  • Fins: 8
  • Dimensions: 7 x 18 x 15 inches
  • Weight: 19 lbs.
  • Warranty: 1-year limited

More features: built-in GFI plug; energy-saving timer with 96 settings

Not everyone has a large room, that’s probably what Delonghi thought when they designed this super-efficient Delonghi TRN0812T Portable Oil-Filled Heater. With its heating power of 1200 watts, we assure you that even though this model is advertised as a mini-unit, it’s not really far behind the bigger ones in terms of power. Apart from the convenience it offers, this heater also operates quietly, and since it’s a compact model, you won’t have any problem using it in cramped rooms. It’s compact construction also means you won’t find it hard to store it away when not in use.

The machine also comes with a digital thermostat, which you can use to make the unit cycle on and off. You can also set a timer to have total control over the operation of the radiator, and the timer function is beneficial for people who usually forget things. With 96 programmable settings, the timer offers you optimal control. Whether you’re looking to adjust the heat levels or set the machine to cycle on and off, this heater is ready to provide you with sufficient warmth whenever it’s required.

The manufacturers also had safety in mind when this machine was being designed. It comes with overheat protection, which helps prevent the unit from getting too hot. In addition to that, it’s equipped with an anti-freeze feature to prompt the unit to turn on when its temperature falls too low. It’s an awesome feature to consider this model a nice tent heater as well. The only significant downside we might mention is the fact that its volatile components produce some inconvenient odor in the first weeks of usage.

What we liked:

  • Operates quietly
  • Has a digital thermostat
  • Useful timer
  • Effective safety features
  • Compact construction
  • Very powerful for a mini radiator

What could be better:

  • The machine’s volatile components may produce disturbing odors in the first weeks
  • Heating power: 700W
  • Fins: 7
  • Dimensions: 5.5 x 12 x 14 inches
  • Weight: 8.6 lbs.
  • Warranty: 1-year limited

More features: tip-over and overheating protection; remote control; 40-95F temperature range

Oil-filled radiator heaters are actually renowned for their cost efficiency, and the COSTWAY Oil Filled Radiator Heater shows why. While the 700-watt heating power isn’t much, it should be sufficient for basic domestic needs. And since the unit is priced below $100, it is very understandable. At only 14 inches, this model is impressively small, and surprisingly, it delivers a decent heat level for the majority of small to medium-sized rooms. In a nutshell, the value it offers is much more than what you will pay for it.

Furthermore, the unit has a very quick operation, and it promises to rapidly heat up wherever it’s put. However, it doesn’t come with wheels, which means it can’t be easily pushed around like those that come with them. It has a portable design though, with convenient handles for transport it easily from one room to the other. And since it has such a lightweight construction, moving it isn’t really a problem, just keep in mind that it will be pretty hot to touch. The safety features incorporated include a shut-off feature, which automatically shuts the machine off to prevent overheating, and the oil is also sealed permanently to prevent leakage and make sure it doesn’t need refilling.

The machine boasts of a quiet operation, and the thermostat control incorporated allows you to adjust the amount of heat you need. This product from COSTWAY is small and efficient, which makes it perfect for small to medium-sized rooms. While it may not come with all the bells and whistle of more expensive products, it’s very effective, and that alone is enough for some people.

What we liked:

  • Budget-friendly price
  • Portable design
  • Adequate safety features
  • You don’t need to refill oil
  • Rapidly heats up

What could be better:

  • Doesn’t have wheels
  • Low heating power

Things to Consider

Choosing a perfect oil-filled radiator might not be an easy task, especially if you’ve never done that before. In the section below, we’ll be taking a look at different things you need to know when doing your shopping.

What are the advantages of an oil filled radiator heater?

8 Most Decent Oil Filled Radiators To Keep Your Home Warm and Energy Bills LowSave money

Using an oil-filled heater helps to save money, particularly when the temperatures aren’t really low. Rather than switching the central heating system on and heating up the whole house, just utilize an oil-filled heater to increase the temperature in one room, and then carry it with you when changing rooms.


Efficiency is another advantage of oil filled heaters. While they usually take a longer time to heat up than regular space heaters, as soon as they are hot, their resistor operates sparingly, thereby minimizing the total cost of utilizing a radiator.

Long-lasting heat

Unlike regular convective heaters, oil-filled models take longer time to warm up, but they’ll emit heat for an extended period after the device stops working. Oil-filled radiators represent an excellent way to keep the temperature of a room constant all through the day.


Oil-filled heaters are also safer to utilize than other types of space heaters on the market. The heater’s working elements aren’t accessible, reducing the risk of fire in the event of a fault. Most companies offer extra safety features such as thermostatic controls and overheat protection, so you don’t need to be concerned about safety.

Even temperature around the room

Unlike standard electric models that heat up the air in front of them straight, oil-filled models make use of convection air currents in distributing the warm air uniformly around the area. When the air beside the unit is heated up, its density falls, so it gets lighter and subsequently rises. This enables the cooler air directly above to also come under the unit and get warmed up. This process is indefinitely repeated, so in the end, all the air in the area travels around the machine and gets heated up, attaining a uniform temperature.


8 Most Decent Oil Filled Radiators To Keep Your Home Warm and Energy Bills LowMost oil-filled space heaters utilize caster wheels and built-in handles to enhance their portability. Without even needing to lift them, you will be able to move them from one room to the other easily.

Features to consider while choosing an oil filled radiator

When you’re shopping for an oil-filled heater for your workplace or home, it’s very vital to know exactly what to look for so that you can be certain that you are picking the ideal model for your specific needs.

Maximum heating power

Of course, power is a very important factor as far as oil-filled radiators are concerned. Nobody wants a product that won’t deliver a sufficient amount of heat. You will determine the amount of heating power you need based on the size of the room you need to heat up.

Normally, the most powerful models come with a heating power of 1500 to 2000 watts, but anything above 2000 watts might be an overkill. If you have a small room, a model with 600 watts might be more than enough.

Thermostat and heat settings

8 Most Decent Oil Filled Radiators To Keep Your Home Warm and Energy Bills LowThe inclusion of a thermostat and the availability of multiple heat settings are other important factors you need to consider as they will determine the comfort level at which you can use the device. The thermostat helps to switch off the unit after it has reached a particular temperature, so it’s definitely essential. You also need to look at a model with two output settings at least. The output settings are going to enable you to determine the heater’s power consumption at any particular moment. So, you need to look at a model like the DeLonghi TRN0812T and the Tangkula Electric Oil Heater.


A timer usually helps save money since it can be used to turn the machine off when you are not around. Top models like the Honeywell HZ-789 and the PELONIS PLN978-B usually have a timer feature, so that you can use it to schedule the operation of the machine, thereby reducing your electricity bill at the end of the month. It is an excellent feature as it enables you to program the machine start working before you’re back from work, finding a comfy temperature without needing to run the unit all day long.

Safety features

8 Most Decent Oil Filled Radiators To Keep Your Home Warm and Energy Bills LowDangers can’t be totally eliminated as far as oil-filled radiators are concerned. The inability of a unit to produce flames or fumes while producing heat makes oil-filled heaters comparatively safe to use. It is a crucial factor to think about when choosing an oil-filled radiator. The user must be sure that the model meets their safety standards.

The models presented in our list all have inbuilt safety features to make using the machines much safer. Some of the most popular safety features found in the top models like the DeLonghi EW7707CM include auto-shut-down, anti-frost, anti-tipping detectors, and overheat protection.

Dimensions and weight

When it comes to oil filled radiators, size does matter. The larger the radiator, the larger the radiant surface. All oil filled heaters produce heat in the same way, by warming up the oil and circulating it through the metal columns. However, the number of metal columns and their overall surface determine how well the heat is transferred further, to the surrounding air.

Large and heavy heaters are undoubtedly more powerful but less portable than more compact appliances, like the DeLonghi TRN0812T. This is where handles and wheels come to the rescue.


Of course, warranty can’t be the deciding factor when you’re in search of an excellent oil-filled heater, but it’s still one of the most important factors to consider. This will make sure that your purchase will have some sort of protection for a particular amount of time. While oil-filled units can be fairly cheap, it is not reasonable to be spending unnecessarily on another unit within just a year of buying one.

Extra features

Apart from the major features we have mentioned, there are also some extras you might want to look at if you know you want to enjoy your machine totally. Some of the most useful additional features are an LED indicator, LCD display, auto shut-off feature, and digital controls. However, keep in mind that these sophisticated features are likely to bump the price of a product up a bit so make sure you really need them in order not to pay over the odds.

Safety tips

Every electrical appliance needs to be operated with caution in order to avoid any risks of fires, short circuit, and more. Read the tips below to learn how to use an oil-filled radiator safely.

8 Most Decent Oil Filled Radiators To Keep Your Home Warm and Energy Bills LowDon’t use extension cords

Plugging an oil-filled radiator into an extension cord is very dangerous, so ensure you plug it only into a wall socket. However, if a wall socket isn’t an option, just get a powerful extension cord, 14-gauge at least or even thicker. In case you do utilize such an extension cord, make sure that it’s very short.

Keep the metal fins clear from any stuff

During operation, the fins can get really hot, so don’t leave things on them. Apart from the fact that it can pose a fire hazard, the efficiency of the radiator will be lowered when you consistently leave different stuff on the metal fins.

Keep the children away from the heater

The heater can become hot when it’s working, so it might be better to prevent children or pets from reaching it. The metal fins are usually thin and may have sharp edges, making them dangerous around children.

Place the unit away from high-traffic areas

The power cord of a radiator can pose a tripping danger, and the metal fins of the radiator are sufficiently sharp to cause real damage in the event that they are tripped over. Ensure you put the unit far away from the high traffic areas in the room and also don’t put them around the doorways.

Turn the unit off when you leave the room

While utilizing an oil-filled radiator is fairly safe it is even safer to switch off the unit when you are leaving the room, mainly if it runs continuously and doesn’t have a built-in thermostat. In case you want your room to be well-heated when you come back, look for a model with a built-in timer. This way the unit won’t work continuously reducing the risks of accidents.


No, there is no need to add oil into these devices. The oil isn’t utilized as fuel, so it simply works as a heat reservoir and doesn’t ever get exhausted. It simply keeps circulating through the unit for as long as you utilize it.

The energy efficiency of oil-filled radiators is more than 99 percent. It converts nearly all the energy it consumes into heat. A small amount of the energy is then diverted and utilized to power the control panel and the additional features, such as a timer, thermostat, and energy settings to adjust the amount of energy your unit consumes.

These appliances are not noisy at all. Since they work with radiation rather than fans, they are nearly totally silent. The only noise they make is some clicking sound as the thermostat regulates itself.

The noise is being produced by the thermostat as it regulates itself. It should stop when everything reaches the same temperature until the thermostat reconditions at least.

Our Verdict

DeLonghi is probably the biggest brand in the industry, so it shouldn’t be overly astounding that the DeLonghi EW7707CM is the best oil filled radiator on the market, in our opinion. Apart from its super durable steel construction, it also has an incredible energy efficiency, coupled with an adjustable thermostat and Smartsnap wheels which aid transportability.

The next model in the line is the PELONIS PLN978-B, which despite coming from a brand that’s not really popular, is the most versatile model on this list. With its multiple heating choices, you can easily select a heating setting based on your needs. Apart from that, it also comes with convenience-aiding remote control and different safety features.

Our last pick is the Honeywell HZ-789, which is probably the only model on this list with a bit of everything. It is powerful, energy-efficient, and safe to use, and the fact that it’s backed by a three-year warranty speaks volume about how incredible this product is.

Leave a Reply

Your email address will not be published. Required fields are marked *