There’s nothing better than cosying up under a blanket during the frigid depths of winter. Although, without an excellent oil heater for your large living room or bedroom, it won’t be a positive experience.
But, trying to warm a larger room with an older oil heater can become a costly exercise. According to CNN Business, in 2022, the average cost of home heating increased by 17.2%, or $1,208, from 2021.
What this means, if you’re not planning on investing in more economical alternatives you could be stuck with an expensive oil heater warming your larger spaces.
So, there’s never been a better time to purchase the best oil heater for a large room. But with a million options to sift through online, where does the average buyer begin?
Luckily for you, we’ve done the research, but why should you trust our top picks? This is why.
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Best Oil-Filled Room Heaters This Year: Our Criteria and Results
When it came to selecting our top 12 picks, we made sure that these oil heaters met the following criteria.
Efficiency was key in selecting our top oil heater. Does the unit retain heat well? Can it circulate the heat well? And how much power does it require to reach its maximum output, as well as how large is its heating coverage?
Another factor is how safe it is; does it have tip-over protection or some form of heat shield for children and pets? We also gave points to units with remote controls, as one of the brand writes-up pointed out that there’s nothing worse than having to leave your cosy blanket to turn on or off a heater.
The last major criteria is the warranty; how long is it and how comprehensive is it?
Here are our top picks:
| Pelonis |   | Luxurious Champagne | 230 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil Child Lock | Quiet operation LED Display Five temperature settings 10-hour timer Remote enabled | Click here to check price |
| Dreo |   | Radiator Heater, Upgrade 1500W Electric | 300 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil Cool to touch Child Lock | Spindle-Shaped Openings M-shaped Heating Fins 225mm Enlarged Fins Wraparound Heating Fins Design Remote Control ECO Mode 24 Hours Auto On/Off Timer LED Screen | Click here to check price |
| De’Longhi |   | TRD40615T Full Room Radiant Heater | 144 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil Cool to touch Child Lock | 24 hour on and off timer Smart snap on wheels | Click here to check price |
| De’Longhi |   | Comfort Temp Full Room Radiant Thermostat | 147 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil | 24 hour on and off timer Smart snap on wheels Comfort Temp | Click here to check price |
| Rellorus |   | Radiator Heater | 300 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil Cool to touch Child Lock | Precise Electric Thermostat LED Display Remote 24 hour on and off timer | Click here to check price |
| Amazon |   | Basic | 144 ft2 | Overheat Auto Shut off Completely Sealed Oil | None | Click here to check price |
| De’Longhi |   | Quiet | 147 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil | 24 hour on and off timer Comfort Temp | Click here to check price |
| KopBeau |   | Space Heater | +/- 400 ft2 Produces: 5,118 BTUs | Tip over protection Overheat Auto Shut off Completely Sealed Oi Child Lock | Remote Control ECO Mode 24 Hours Auto On/Off Timer LED Screen New fin separation technology | Click here to check price |
| Kismile |   | Oil Filled Radiator | Estimate of 144 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil | None | Click here to check price |
| Tangkula |   | Electric Oil Heater | 215 ft2 | Tip over protection Overheat Auto Shut off | None | Click here to check price |
| Costway |   | Oil-Filled Radiator Heater | Estimate of 144 ft2 | Tip over protection Overheat Auto Shut off | None | Click here to check price |
| Comfort Zone |   | CZ8008 | 300 ft2 | Tip over protection Overheat Auto Shut off | None | Click here to check price |
We also took into account the opinions of verified buyers. Luckily with these products, many users were willing to give feedback at length. Most of the heaters we landed up selecting had a few thousand ratings.
Another factor was the product’s general appearance, the brand’s reputation, and size dimensions.
Now that we’ve covered how we selected our top 12 best oil-filled heaters for large rooms, let’s talk more about the products themselves.
Best Oil-Filled Radiator Heater for Large Rooms [2023]
Creating a list of the world’s best oil-filled heaters is not a small task. As you can imagine, there are a lot of them, and each of them delivers on their own product’s core intrinsic selling point.
Some oil heaters are designed to be efficient, while others deliver new technology. Some brands have even emphasised the importance of designing a new, sturdier wheel.
But as we mentioned before, we’re hyper-focused on sharing the most important selling points of only the oil-filled heaters above.
So, let’s get started.
Pelonis Luxurious Champagne: The Lavish Heater
With a name that evokes a sense of comfort and relaxation, the Pelonis Luxurious Champagne oil heater is a refined machine. It also packs all the safety features you’d expect from a product that calls itself luxurious.
It can also heat a 230ft2 room, comes with a remote, and is environmentally friendly, all while offering four swivel caster wheels. Lastly, it is designed for easy movement, with hidden handles.
Pros:
- Energy efficient
- Safe and luxurious
Cons:
- One-year manufacturer warranty
- Timer could have been better
We think this is a winner if you ignore the cheap feeling remote and that the timer only allows for ten hours, whereas competitors have 24 hours.
But if you’re sold, you can purchase it here.
If you’re looking for something a bit different, the next heater might be exactly what you’ve been searching for!
Dreo Radiator Heater: The Looker
Before researching oil heaters, our honest opinion was that there wouldn’t be a design that interested us more than others. But the Dreo changed our minds. With its sleek black construction, LED display, and unique M-shaped fins, it feels like it could be a prop on a sci-fi show.
The design also allows for cool touch, which, if you have small children, is a must-have feature.
Pros:
- Cool to touch
- Cool to look at
Cons:
- One-year manufacturer warranty
- Wheels can be tricky to install according to reviews
The Dreo is a quality product with over 2,781 global ratings on Amazon as of writing. While we’d always steer clear of new designs in an established sector, the Dreo is a great product if you’re looking to warm a large room.
If you don’t need to be sold on any other heaters, you can buy it here.
But what if you’re looking for a heater that works fast?
De’Longhi TRD40615T Full Room Radiant Heater: Getting To Work Fast
The De’Longhi, with its catchy name, promises to heat any room within minutes thanks to its increased convection heating effect. Another factor is that the De’Longhi now has 75% more radiant surface area, which means more heat transfer.
By default, it is an easy-to-operate heater as it is rather basic and doesn’t include a remote. But what it lacks in features, it makes up for with its three-year manufacturer warranty.
Pros:
- Quick heating
- Three-year manufacturer warranty
Cons:
- Lack of modern features
- Not a silent model
If you’re someone who can’t stand the cold, this De’Longhi is the heater you want to warm up your large room.
If you’re keen to tap into this heat, you can purchase it here.
But what if you’re looking for a De’Longhi that’s a bit cheaper?
De’Longhi Comfort Temp Full Room: The Economical One
With three heat settings and a large button that reads, ComfortTemp, the De’Longhi Comfort is a fantastic basic oil heater. The large button activates a mode called ComfortTemp which promises to be up to 20% more efficient.
As far as oil heaters for larger rooms go, this unit is durable and will require little to no maintenance. And if it does require some work, it has a three-year manufacturer warranty.
Pros:
- Economical
- Three-year manufacturer warranty
Cons:
- Lack of modern features
- Not a silent model
While this oil heater promises to be more economical, it is also easier on the pocket with a price point well below the De’longhi TRD40615T.
If you’re already sold on this solid and economical oil heater, you can buy it here.
But what if you’re looking for a heater that proclaims to have used “humanization design”.
Rellorus Oil Filled Radiator: Humanization Design
While Relorus went wild when paging through the corporate jargon manual, the product’s design is indeed eye-catching. This is a solid option for any family with its clear LED display, 24-hour timer, and every safety feature.
Pros:
- Remote has 19 feet of range
- Precise temperature control
Cons:
- Not a famous brand
- One year warranty from the manufacturer, for an additional year you have to register
As a brand that doesn’t have the recognition of others on this list, it really punches above its weight class or product segment.
If you’re sold on the Relorus, go and purchase it now – here!
But what if you want something – well – basic?
Amazon Basic: It’s Basic
So far, we’ve reviewed many newer and arguably more complicated oil heaters, but that’s not the case with the Amazon Basic heater.
For those offended by a screen on their heater, this product is for you. And if you were wondering about features, there are none, it’s a heater, and it heats rooms well.
Pros:
- Basic and uncomplicated
- Will always be in stock
Cons:
- A basic one-year limited warranty
- Will be noisy
We can’t fault it for what it is: a basic heater. But it does mean that this oil heater will make those old clinking noises that some might remember.
If you’re keen on a basic heater, then you can buy it now.
But if you can’t bear the thought of a heater making noise, here’s a different heater for you!
De’Longhi Quiet: It’s In The Name
Another De’Longhi product on our list, but this one promises silence. Like the Comfort, this model has the impressive ComfortTemp feature, cutting electricity usage.
This is a winner with standard safety features and an easy-to-use temperature interface. But don’t expect any real gadgets like a remote, which would have been a great addition for a product at this price point.
Pros:
- Economical
- Silent
Cons:
- Lack of modern features
A major bonus when purchasing a De’Longhi product is that it comes with a standard 3-year warranty.
You can buy it here if you’re sold on the sound of silence.
But what if you want a product with a name that most of your friends and family will struggle to pronounce? Well, you’re in luck.
KopBeau Space Heater: Pronounced “Kup-Bo”
While not a common household brand name, the KopBeau space heater has over 4000 reviews on Amazon. The heater has three heating settings, a large control panel, and a great ECO mode. It also operates silently and comes with a remote.
In the marketing material, the brand says it is perfect for the office, bedroom, living room, and garage.
Pros:
- Comes with all the modern extras
- Silent
Cons:
- Buttons have sound effects
- Has been reported to make a strange whining noise
For an unknown brand, this space heater is incredibly popular.
While it is not available on Amazon, you can always keep an eye out for it – here.
But what if you want a heater that’s made (or at least has its headquarters) in the USA?
Kismile Oil Filled Radiator Heater: Born (Sort Of) In The USA
A California-based business that was established in 2015, this young company has made great strides in the sector with roughly 1,600 global ratings on Amazon. They have created a very standard heater.
There is no timer on this heater, but what it completely lacks in features it delivers on, well, being a good heater. The main bonus of this product is that its base of operations is in the USA, so there’s no need to navigate call centers for answers.
It’s also available in two colors.
Pros:
- Two color options
- Customer care based in the USA
Cons:
- No features
- Safety feature light never goes off
At its price point, the only competitor to beat it is Amazon’s Basic range.
But if you’re sold on buying a heater that will fund the dreams and aspirations of other Americans, you can buy it here.
For those who want a bargain heater without the blaring light, there’s an alternative.
Tangkula Electric Oil Heater: Another Cheapie Gem
This company is also a new kid on the block, only established in 2008. But they’ve snuck in a gem with their entry-level heater. While this is a standard heater, its fins have a unique shape that echoes design cues from a more premium product, which is nice.
Pros:
- Premium feel and look
- Quiet operation
Cons:
- No features
Again, the only competitor to beat its pricing is Amazon. But with a premium look and feel, spending the extra dollars won’t make you regret the purchase.
You can pick it up here.
If you’re looking for a heater with good design at an affordable price, the next option is for you!
Costway Oil-Filled Radiator Heater: Design at a Bargain
The Costway is very well-priced, and the design looks like it should be more expensive.
Its seven rounded oil-filled fins and textured control panel are very attractive.
But be prepared for guests to be confused that it doesn’t come with all the bells and whistles of a more premium product.
Pros:
- Premium feel and look
- Quiet operation
Cons:
- No features
This product is only on this list due to its premium appearance. So, if you’re all about looks, go ahead and purchase it without breaking the bank.
And now for our last choice.
Comfort Zone CZ8008: The Last But Not Least Choice
The Comfort Zone CZ8008 ticks all the boxes for a basic and reliable heater. While it will require some assembly when it is delivered, the company is based in the USA, which means there’s an easy-to-reach consumer care line.
We also appreciate the fact that the company hired a photographer to take pictures of it in situation rather than relying on stock images.
Pros:
- Quiet operation
Cons:
- No features
Not much else to say about the Comfort Zone, except that it’s going to work.
If you just want a working heater, this is it.
But which of these 12 would be in the top three?
Our Final Results and Picks for the Best Oil Heaters for Large Rooms Per Section
Out of all the oil heaters, our top pick has to be the Dreo. With all the bells and whistles, the finishes of the Dreo elevate it above the rest.
The second spot goes to the Rellorus, which again offers all the features and the great fin design.
And in third place, the only product without a remote, is the De’Longhi Silent, which comes with a tremendous three-year warranty and great brand recognition.
| Dreo | | Radiator Heater, Upgrade 1500W Electric | 300 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil Cool to touch Child Lock | Spindle-Shaped Openings M-shaped Heating Fins 225mm Enlarged Fins Wraparound Heating Fins Design Remote Control ECO Mode 24 Hours Auto On/Off Timer LED Screen | Click here to check price |
| Rellorus | | Radiator Heater | 300 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil Cool to touch Child Lock | Precise Electric Thermostat LED Display Remote 24 hour on and off timer | Click here to check price |
| De’Longhi | | Quiet | 147 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil | 24 hour on and off timer Comfort Temp | Click here to check price |
While any of these products would make a welcome addition to any home, it’s their aesthetics that really push that desirability factor.
But at the end of the day, it’s your own personal preference that will be the final influence.
Now that you know our top selection for oil heaters, let’s answer some frequently asked questions (FAQ).
People Also Ask
Here are some questions the internet has asked about oil heaters.
Will an Oil Heater Heat A Large Room?
Most of the heaters reviewed here have a maximum wattage of 1,500 watts, which on average, can heat a space of 150 ft2, roughly half of an average size hotel room in the USA.
How Big a Room Can An Oil Heater Heat?
So if a large oil heater can efficiently heat a 150 ft2 room. You will want to invest in at least two units for larger spaces. In the UK, you can purchase a 3,000-watt unit, but that will require more amps than the average American home outlet can handle.
What type of heater is best for large spaces?
Electric space heaters are great for heating large areas. Heaters that utilize natural gas do tend to produce more BTUs, which means more heat. This being said heaters that use gas need venting to be safe.
Do Oil-Filled Heaters Use A Lot Of Electricity?
Yes, 1,500 watts is a lot of power to draw from the power grid and can be compared to running an oven on low heat. But compared to other heating devices around the home, they are average electrical consumers.
What Size Room Will A 1,500-Watt Oil Heater Heat?
On average, a device using 1,500 watts can heat a 150 ft2 room.
How Many Square Feet Will An Oil Heater Heat?
The heat coverage an oil heater can provide depends on the number of watts it can use. But the maximum size can be upwards of 400 ft2 and more.
Where Should An Oil Heater Be Placed In A Room?
The best place to position an oil heater in a room is as central as possible.
Now that we’ve answered all the important questions, let’s recap our final results.
Our Final Results and Picks for the Best Oil Heaters for Large Rooms Per Section
After researching all the possible options for an oil heater, our top three choices are as follows:
| Dreo | | Radiator Heater, Upgrade 1500W Electric | 300 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil Cool to touch Child Lock | Spindle-Shaped Openings M-shaped Heating Fins 225mm Enlarged Fins Wraparound Heating Fins Design Remote Control ECO Mode 24 Hours Auto On/Off Timer LED Screen | Click here to check price |
| Rellorus | | Radiator Heater | 300 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil Cool to touch Child Lock | Precise Electric Thermostat LED Display Remote 24 hour on and off timer | Click here to check price |
| De’Longhi | | Quiet | 147 ft2 | Tip over protection Overheat Auto Shut off Completely Sealed Oil | 24 hour on and off timer Comfort Temp | Click here to check price |
While there are thousands of options available, our top three selection for the best oil heater for a large room is guaranteed to keep you warm, even through the worst winter storm.
And if there are any other options you like, let us know.
