Worried about your skyrocketing energy bills? Well, the next time winter comes calling, be sure to bank on the best oil filled heaters. Yes, these heaters may not be as tech-advanced as some of the savvy varieties that have graced the market in the recent past, but they remain the most reliable ever.
The science behind these heaters is pretty simple. The machines use a special heat-conserving oil. You don’t need to replace this oil no matter how long you plan to use a particular heater. Yup, you’ve read that right.
The special oil keeps circulating throughout the system effectively heating up the machine. That way, you can keep your house warm without breaking the bank. What’s more? The size of the room you intend to put this heater does not really matter. Depending on your machine’s capacity, you can even warm up large living rooms using only one unit.
As you might tell, by now, not all machines are built equally. But worry not because within the next few paragraphs of this review you will learn everything from:
- The 10 best oil filled heaters in 2018
- The pros and cons of each one of them
- Key features to look out for
- Some important buying tips
- A verdict on which unit we feel offers the best deal
10 Best Oil Filled Heaters 2023 – Comparisons
Offering the perfect combination of warmth, durability and quiet operation, oil-filled radiators remain a popular choice for keeping homes warm. Wondering which unit to go for? The next few paragraphs bring you up to speed with the 10 best oil filled radiators that can make your home cozier and more welcoming.
1. DeLonghi EW7707CM Safe Heat Oil-Filled Radiator
Worried about high electric bills? This heater can effectively and efficiently keep your house warm during the cold season. It features a ComforTemp button that helps you maintain optimal room temperature automatically while reducing your energy costs. In addition to this, it comes with an adjustable thermostat along with three settings so you can easily customize the levels of heat output to fit any space.
Additionally, the entire heater is made from high-quality steel to provide you with long-lasting performance. To top it up, it features patented smart-snap wheels that make it easy to move from one room to another. The wheels are designed to snap into place so no assembly is needed.
On top of that, it boasts a heating power of 1500 watts thereby making it ideal for heating medium to large rooms. Of course, it is also equipped with patented thermal slots for maximizing heat flow while ensuring low temperature on the surface is maintained.
Last but not least, it has an anti-freeze feature that turns the unit automatically when temperatures are below 44-degrees.
- Thermal shut-off prevents it from overheating
- Boasts silent operation
- It’s a maintenance-free system
- Provides constant heat throughout
- Wheels look a bit flimsy
2. The DeLonghi Radiator Model No. TRN0812T
Like the DeLonghi EW7707CM, this model runs on pure diathermic oil and comes with a permanently-sealed oil reservoir. As a result, you will never need to refuel, change or replace the oil which makes this system easy to maintain. Besides, it boasts a heating capacity of 1200 watts thereby making it perfect for heating small to medium rooms.
As if that’s not enough, the DeLonghi TRN0812T features an auto shut-off button that is designed to automatically switch off the heater just in case there is overheating.
It is also equipped with an anti-freeze function for preventing freezing when temperatures fall below 44-degrees while at the same time conserving energy.
Besides that, it is integrated with a GFI plug which makes the heater safe for use in humid areas like the bathrooms.
On top of that, the heater has a 24-hour energy-saving programmable timer with 96 settings that lets you heat any room for different time periods and amount of time. Further, it includes three heat settings and an adjustable thermostat to help you customize all your heating needs.
- Can fit almost anywhere thanks to its compact design
- Thermal chimneys for maximizing heat flow
- Rust-resistant and durable construction
- Great choice for homes with kids and pets
- Setting the 24-hour timer can prove to be a tedious process
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3. NewAir AH-400 Space Heater
If you are looking for an affordable and portable oil-filled heater, this NewAir AH-400 is an excellent choice. The heater fits easily in small spaces including under a desk or in a den thanks to its compact design and relatively flat panel. Note that the AH-400 also features a carry handle so you can easily move it from room to room.
In addition to this, it produces 400 watts of heat which is enough to keep a small room warm and comfortable. It boasts a single heat setting that helps maintain just the right room temperature in order to keep energy costs down.
Another outstanding feature of this unit is its temperature control that automatically shuts the unit off when the set temperature is met.
What’s more? The heater is equipped with an adjustable thermostat so you can choose the perfect temperature based on your unique needs.
Manual controls also come in handy for customized warmth. Further, it boasts silent operation and comes with a six-foot power cord so you can plug it into a convenient outlet.
- Heats up quickly
- Takes up little space
- Casters included to help you direct the warmth just about anywhere
- Casters are made of flimsy plastic
4. Insignia HTRFBK6 Oil-Filled Heater
Featuring 1500 watts of heat capacity, this unit is capable of heating a large room up to 144 square feet when working on its highest setting. Also, the heater runs on a 12.5 AMPS oil radiator to keep your home warm during cold winter seasons. When it comes to safety, the Insignia HTRFBK6 heater features a tip-over switch for safe operation just in case it accidentally tips over.
You know what else? The heater is equipped with a digital thermostat to help you choose your desired settings via its remote control. You can choose between a wide array of temperatures although it only works in 5-degrees increments.
It also has an energy saving mode feature that allows you to keep energy costs to a minimal.
Additionally, the heater boasts a sleek and elegant design. As such, it will look great almost anywhere including the office, living room or bedroom. Although not very compact, it is very easy to transport thanks to the attached wheels it comes with.
- Energy efficient and eco-friendly
- Heats up very quickly
- Perfect for large and medium rooms
- Built-in handle makes it easy to transport
- Can get very hot to touch
5. Optimus H-6011 Oil Filled Heater
If portability is what you have in mind, then this is probably one of the best oil filled heaters to mull over. It features large wheels at the base and a recessed carrying handle for ease of transportation from one place to another. In addition to this, it does not take up too much space and has a cord storage design which makes it convenient to put away when not in use.
What’s more? The heater is equipped with three heating settings including low, producing 600-watts, medium, producing 900-watts and high, producing 1500-watts of heat capacity.
This makes it easy to customize the temperature to fit any space thereby lowering your heating bills. Further, it boasts an automatic thermostat control so you can program the heater to work just as you would like.
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You know what else? This Optimus H-6011 also comes with a sensor that automatically shuts the unit off just in case it is accidentally tipped over. Besides, it has a permanently-sealed diathermic oil system to ensure no oil leaks and that you’ll never need to refill the unit no matter how long you use it.This alone makes it easy to maintain the heater. Another feature worth mentioning is its power indicator light that lets you know if the heater is on or not.
- Silent operation, therefore, ideal for office and home use
- Relatively cheap
- Provides constant warmth for small to large rooms
- Easy to use and comes with great safety features
- Easily tips over if it is not properly balanced
6. DeLonghi HCX9115E Heater
Featuring a slim and sleek design, this stylish heater is perfect for any decor. It boasts a wall mountable option so you can put it virtually anywhere in the office, bedroom or living room. You can also choose to set it on the floor and it won’t take up a lot of space thanks to its slim design.
Additionally, the heater features an ECO mode function that is designed to automatically adjust the heat level and power settings of the unit when the ideal temperature is achieved.
As a result, it ends up saving so much energy. When it comes to safety, this is yet another area this unit does not disappoint. It is equipped with a tip-over switch with loud buzzer that automatically switches the unit off if it is accidentally tipped over.
Also, it boasts an anti-freeze and thermal cut-off setting to prevent freezing pipes and protect it from overheating.
As if that’s not enough, the heater spots a heating capacity of 1500 watts. Consequently, it is able to warm up large and even the chilliest rooms quickly. In fact, it can comfortably provide constant heat for rooms up to 300 square feet without making any noise. Besides, it comes with user-friendly digital controls including a programmable timer, adjustable thermostat and various heat settings for personalized heating needs. What’s more? It uses a two-fan system that allows faster heat distribution throughout the room.
- Mounting hardware included with the package
- Very energy efficient
- Heats up very fast
- Designed to complement nearly any decor
- Makes little noise when the two fan system is on
7. DeLonghi Oil Filled Radiator, TRH0715
With 1500 watts of heating power, this heater delivers a maximum amount of heat while at the same time maintains a low surface temperature. It provides constant heat for medium and large rooms measuring up to 250 square feet during the cold seasons. The TRH0715 features high-quality steel construction that makes it rust proof and highly durable. Besides, its oil reservoir is permanently sealed so you don’t have to worry about refilling or changing the oil.
Further, the unit is equipped with an easy-to-use control panel that offers three settings and an adjustable thermostat to help you personalize your comfort and heating needs.
Patented thermal-slots also come in handy for maximizing heat flow and ensuring the low surface temperature is maintained. You know what else? It features smart-snap wheels that snap into place so you can move the unit from one place to another with so much ease.
Moving on, this heater has some great safety features which make it an excellent choice for households with kids and even pets. First off, it includes an auto-thermal cut-off switch that turns off the heater if it begins to overheat. In addition, the heater boasts an anti-freeze setting that automatically turns it on when temperatures are very low in order to prevent frozen pipes.
- Boasts durable and rust-resistant metal construction
- Has a user-friendly control panel
- Offers silent and energy-efficient operation
- Does not get hot to the touch
- Has an awkward smell that goes away with time
8. Optimus H-6003 Oil Filled Heater
This is yet another highly portable and affordable oil-filled heater worth considering especially if you are working with a tight budget. Measuring 16 inches by 6 inches by 15 inches, no doubt the heater is quite compact and can be placed under or beside a desk. Besides, it is very lightweight and comes with a carry handle for ease of transportation. Not to mention, it is designed to automatically shut itself off if it starts overheating.
In addition to this, it features heavy-gauge sheet metal construction which makes it durable and rust-resistant. As such, with proper maintenance, it can provide you with long-lasting performance.
And like most oil-filled heaters, this too boasts a permanently sealed diathermic oil reservoir. Therefore, you never have to worry about oil leaks, changing or refilling the oil.
What’s more? It is capable of producing up to 700 watts of heat output. This makes it ideal for warming up small to medium rooms. However, it only has a single heating setting i.e. an automatic thermostat control.
The thermostat control ensures you have control over how much heat output you get from the heater so you can save as much energy as possible. Additionally, the unit has a unique design at the base that keeps it from tipping over accidentally given it does not come with a safety tip-over switch.
- Carry handle stays cool to the touch
- Simple and easy to use
- Energy efficient thanks to its small size
- Not powerful enough to heat large rooms
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9. Honeywell HZ-789 Oil Filled Heater
The Honeywell HZ-789 is one heater to watch if you’re looking for an energy efficient unit that can warm up mid-sized rooms for long periods of time. The heater is surprisingly quiet while in use although it does make a few popping noises when it is at its maximum power.
In addition to this, although a bit cumbersome, it is easy to transport from one room to another all thanks to its smooth wheels and large handle with easy-pull luggage style.
Additionally, it features digital controls including a timer covering a 12-hour range providing you with complete control over the exact temperature to set in every room. And like most oil-filled heaters, this too includes an easy-to-adjust thermostat built with three heat settings to give you personalized comfort. Therefore, you won’t feel overwhelmed but hot air or feel chilly.
Further, another area this heater shines really well is safety features. It is equipped with a customer mechanical switch (tip-over) to ensure the unit is switched off automatically in case it is accidentally tipped over. Top it up, it has an overheat protection function to protect it from overheating. This makes it an ideal heater for houses with pets or kids around. Other accessories included with the package are a power cord (heavy-duty) and three-prong grounded plug.
- Excellent choice for people working with a low budget
- Comes in sleek and stylish black design
- Reliable and safe to use
- Does not tip over easily
- Power cord can be too short
10. Comfort Zone C7007J Oil Filled Heater
Whether you are looking for a heater for heating small or large rooms, this unit from the Comfort Zone brand stands out as an excellent choice. As a matter of fact, it is capable of heating up to 1,000 square feet rooms thanks to its seven warming fins.
Not to mention, it produces so much heat output and you can choose between three different wattage levels including 500 watts, 900 watts and 1200 watts depending on your unique heating needs. Furthermore, the unit does not need refilling since its oil reservoir is permanently sealed.
What’s more? The unit is equipped with a tip-over cut-off switch to ensure it shuts off automatically just in case it is tipped over. It also comes with an overheat protection system to prevent it from overheating when at maximum power. Another outstanding feature of the heater is its power indicator light that lets you know when it is on or off.
Further, it includes an adjustable thermostat and three heat settings to help you maintain a constant temperature throughout. The heat settings also allow you to customize your heating experience. You know what else? The heater comes with large wheels and a molded handle that stays cool throughout for easy movement from one room to another despite being a little bit heavy.
- Slim design ensures it does not take up much space
- Powerful enough to heat large rooms
- Operates silently
- Energy efficient and warms up quickly
- Lacks anti-freeze feature
Buying Guide-Which is The Best Oil Filled Heater For You?
When choosing an oil-filled heater, there are a number of factors you need to take into account. These will help you avoid a situation whereby you spend your hard earned money on a heater that is either too big or one with a heating capacity that’s not enough to heat up your entire home adequately. In this quick buying guide, we find out what the key factors are when looking for the best oil filled heaters.
The heating power which is indicated by the number of watts is one of the most important factors to consider when looking for the right oil-filled heater. The amount of power you need depends on the size of the room you need to keep warm. Therefore, if you are going to be heating a large area, you will need a unit with greater heating power. Generally, heaters with a minimum heat capacity of 1500 watts are considered perfect for heating medium to large sized rooms. But if you only need to heat up a very small area then a unit with at least 700 watts can be an excellent choice.
Another factor to take into account is the portability of the heater. This is because you will probably need to move the unit from one room to another. Furthermore, most oil-filled heaters tend to be heavy and large in size. When it comes to portability, you can choose to go with a unit that is lightweight and compact or one with carrying handles and sturdy wheels. It just does not make sense to invest in a heater with high heating capacity yet you cannot move it around easily.
Oil filled heaters are electrical appliances so they have a risk of becoming hazardous just like other items. Fortunately, most heaters out there come with some additional safety features making them ideal for use in homes with kids and pets. Some of the features to look for include: an overheating protection system that cuts the heater’s power if it gets too hot. Another feature is a tip-over switch that ensures the unit is powered off if it falls over to lower its chances of becoming a fire hazard.
A durable heater will be able to stand the test of time while maintaining great performance and good looks. Most oil-filled heaters are made of steel because this material is sturdy, durable and rust-resistant. However, you need to invest in a heater made from only high-quality steel because there are also poor qualities of steel.
A heater with a timer and other customizable heat settings will help you save a lot on energy costs. This is because it allows you to program the unit as to when it should be on or off. As such, you won’t have the heater running all day especially when you are out of the house.
Overall, there is no better and efficient way to heat up rooms during the cold seasons than with the best oil filled heaters. The benefits of having a unit at your home or office are numerous and, therefore, it is always a good idea to get one for yourself.