I Tested And Reviewed 10 Best Oil Filled Radiator Heater For Large Rooms (2023)

I recently purchased this heater and I have been extremely satisfied with its performance. Initially, I was hesitant to buy a heater, including this one, but when my central unit stopped working and the cold became unbearable, I decided to give it a try. At first, I expected instant heat like a fan heater, but it took about an hour or two to warm up the room. However, once it started working, I realized that I had made the right choice. My bedroom became perfectly warm, and I even had to turn on the air conditioner to cool down the room.

I have been using this heater for almost a month now, and it continues to work beautifully. I have been leaving it on practically all day for days at a time without any issues. I typically set it to the highest setting to warm up the room quickly and then lower it to medium or low to maintain a toasty and constant heat. It truly heats up the entire room.

I must mention that the heat distribution may vary depending on the size of the room. In my living room, which has high ceilings and an open floor plan connected to the kitchen and dining area, the heat is less concentrated compared to my closed bedroom. However, this is expected and does not diminish the overall performance of the heater.

Throughout the winter season, I have relied solely on this heater as my heat source, and it has been sufficient to keep my 800-square-foot apartment warm. I only need to keep it on the low 600-watt setting. It has also helped me save on energy costs, as my January utility bill was $20 less compared to the previous year when I used baseboard heaters.

I highly recommend this heater to others. It is important to note that some negative reviews may not be related to the heater itself. These heaters are radiant and do not have a fan, so the heat is felt closer to the unit or in smaller rooms. To maximize heat circulation, I have placed mine directly under my ceiling fan, running at the lowest speed and in the winter direction. This helps circulate the warm air throughout my apartment.

I have been running this heater continuously for six months, 24/7, and it has performed flawlessly. The power cord has never gotten hot, except for a recent issue where the red power light started flickering. Although the heater still worked fine, I decided to be cautious and contacted Pelonis. Their customer service was excellent, and they promptly processed a refund for the purchase price after I provided them with a receipt and a video of the issue. I have since ordered another heater as a backup.

In terms of heat output, even on the low 600-watt setting and with the thermostat set to the highest, my 800-square-foot apartment maintained a temperature of 64 degrees Fahrenheit during a -2-degree air temperature and -25-degree wind chill. The back room was slightly cooler at 58 degrees Fahrenheit. It is worth mentioning that these temperatures were achieved with the heater set to low and the temperature dial at half.

The Dreo oil-filled heater is a game-changer when it comes to heating your home. Unlike other heaters, this one features a sealed oil system, which means you don't have to worry about dog or cat hair clogging up the system. Plus, it comes with a host of impressive features that make it a standout choice.

One of the first things you'll notice about this heater is its large display. It's incredibly easy to see the heat settings from across the room, which is especially appreciated for those with vision difficulties. With a heating capacity of approximately 400 square feet, this heater does a fantastic job of warming up a room. Even in larger spaces, when used in conjunction with a ceiling fan, the warmth is palpable.

The heat produced by the Dreo oil-filled heater is unique. It's not like the direct heat of a hairdryer or a forced air system. Instead, it feels similar to the enveloping warmth you experience in the humidity of summer. It's a pleasant and comforting heat that you'll appreciate, especially during the colder months.

In terms of functionality, this heater offers a timer function and multiple levels of heating. While some users might prefer a thermostat with a temperature setting, the provided features are sufficient for finding the perfect level of warmth. The design of the Dreo oil-filled heater is also worth mentioning. It boasts a sleek and modern look that will seamlessly blend with any decor.

However, there are a couple of minor drawbacks to consider. Some users have expressed disappointment with the location of the power cord, as it comes from the front of the heater. This can make it a bit challenging to hide the cord if you prefer a cleaner look. Additionally, the power cord not being located at the back means you lose a couple of feet in length.

I recently purchased this compact heater and I must say, it is perfect for smaller spaces such as bathrooms or small bedrooms. Its smaller size allows for easy placement and storage when not in use. The setup process was a breeze and it works great, providing efficient heating.

One of the main reasons I bought this heater was to warm up my basement, and it has exceeded my expectations. It effectively heats up the entire space, making it comfortable even during colder months. Additionally, its compact size makes it suitable for tiny homes or apartments. I am even considering ordering more for our office spaces.

The efficiency of this heater is truly impressive. Despite its small size, it manages to generate a significant amount of heat, making it ideal for smaller areas. I find it particularly useful for my office, where it efficiently warms up the space without taking up much room.

Furthermore, this heater is not only compact but also lightweight, which makes it perfect for various uses. I can easily take it camping or place it under my desk at work. Its travel-friendly design and the ability to add legs and a base make it even more versatile. It does get quite hot, but I wouldn't recommend it for larger living spaces or bedrooms.

I recently purchased this oil space heater after thoroughly researching various options and reading multiple reviews. I was quite alarmed by the negative experiences shared by users of other oil space heaters, including leaks, electrical fires, unpleasant odors, and clicking noises. However, I came across this particular model and despite the relatively lower number of reviews, all the ratings were consistently high, with most users giving it 4 or 5 stars. Intrigued by this positive feedback, I decided to give it a try.

To my delight, the heater arrived in perfect condition and functioned flawlessly. There was no unpleasant smell, and it heated up my room efficiently without any issues. I am relieved to say that this heater does its job effectively and is devoid of the problems mentioned in other users' reviews. I wholeheartedly give it a sincere 5-star rating.

One of the main reasons I chose this oil space heater is its striking resemblance to a model I already own, albeit under a different brand name. I have been using the previous heater for a year without any problems. However, the brand no longer produces a similar simple model, prompting me to search for a suitable replacement. This heater's controls are straightforward and user-friendly, with no complicated digital buttons or displays that could complicate its operation.

The portability of this heater is another feature that appealed to me. It can be easily moved around to cater to changing heating needs or to find the optimal spot in a room for effective heat distribution. Moreover, its compact size allows for convenient storage when not in use during the summer months.

Previously, I relied on ceramic disk heaters with fans, which were not overly loud or disruptive. However, as I started watching videos on my tablet with the volume set low, the noise from the fan would force me to constantly adjust the volume. Additionally, using the central heating system with air vents resulted in a lot of noise, and I didn't require heating for the entire house when I primarily occupied only a couple of rooms. Consequently, I decided to try a radiator type device like this oil space heater. I am extremely pleased with this decision as it produces zero noise. Currently, I have set it on low with a 40-50% thermostat, and my master bedroom remains comfortably warm. As winter approaches, I may need to increase the settings slightly, but I have thoroughly enjoyed the silence and the ability to listen to my videos without constantly adjusting the volume or having it blaring at maximum.

After carefully assessing the various aspects of this heater, I have come to the conclusion that it is a reliable and efficient option for heating small to medium-sized rooms. However, there are a few important points to consider before making a purchase.

Firstly, it is worth noting that the room size description on the Amazon listing is incorrect. The manufacturer specifications indicate that this heater is suitable for a 144 square feet area, equivalent to approximately a 15×20 feet room. This discrepancy should be taken into account when determining if this heater is the right fit for your space.

In terms of electrical requirements, it is crucial to be cautious. The heater pulls about 12.5 AMPS on High (1500 Watts), which means that using an extension cord is not recommended. If you must use an extension cord, it should be no longer than 10 feet and rated for a minimum of 15 AMP (10 Gauge) capacity to avoid overloading your electrical outlet.

One common complaint mentioned by some users is the loud cracking or popping sounds emitted by the heater. This issue may be attributed to either poor assembly of the panels or poorly manufactured and treated metal components. While this can be annoying, it is important to note that all radiant type heaters tend to slightly pop or crackle during cold start but should diminish once fully warmed up.

Fortunately, my personal experience with this heater has been positive. I have been running it on high 24/7 for the past couple of days without encountering any odor or unusual sounds, aside from the expected thermostat clicking on/off noise, which is barely noticeable. Even my super light sleeper wife has not been bothered by this sound in our tiny bedroom.

Furthermore, this heater has been a game-changer in our drafty 100-year-old building during the winter months. It is compact in size but surprisingly powerful, effectively heating our space and providing much-needed warmth. However, it is important to note that the heater does tend to dry the air when set on high, so running a humidifier alongside it is recommended.

In terms of energy efficiency, it is too early to determine the impact on our electric bill, but the heater's performance thus far has outweighed any potential concerns in this regard.

To summarize, this heater is a fantastic option for those seeking a reliable and efficient heating solution for small to medium-sized rooms. Despite minor issues such as incorrect room size description and occasional popping sounds, the overall performance and effectiveness of this heater make it a worthwhile investment.

I recently purchased this space heater and I must say, it is by far the best one I've ever owned. With its fan level and two heat levels, it is perfect for the unpredictable weather in Louisiana. After a few hot days, the temperature dropped quickly and this heater kept my entire home warm, including the hallway, living room, laundry room, and kitchen. Unlike other heaters that only warm up a small area, this one truly impressed me with its ability to heat multiple rooms.

Not only is this heater powerful, but it is also compact in size. I actually ended up purchasing two of them for different areas of my home. One is used in my master bathroom, which has high ceilings and a decent size. The heat radiates into my master bedroom, which measures approximately 20 x 30 feet. Within a short amount of time, the room becomes comfortably warm. I mainly use it before, during, and after showering, as well as on colder days and nights. However, I do recommend keeping an eye on it and not running it unattended for long periods of time, as it can become hot to the touch.

Another reason why I love this heater is its safety features. It automatically turns off if it tilts over, providing peace of mind, especially when using it in the basement during my morning workouts. The right amount of warmth it provides allows me to complete my sessions with ease. It's amazing how such a small heater can heat so well.

I recently had to deal with a situation where one of my cats fell ill and the weather was extremely cold. I needed a solution to keep my cat warm and comfortable while he recovered. That's when I came across this little heater, and I must say, it exceeded my expectations.

I initially placed my cat in a smaller room where he could rest and heal, and this heater did an excellent job in keeping the room warm on the lowest setting. The room remained comfortably warm throughout the day and night, which was crucial for my cat's recovery. I was relieved to see that this heater lived up to its promise of providing warmth even in cold conditions.

What impressed me even more was its ability to warm up larger areas as well. I have a den attached to the laundry room, and with the door open, the entire space was kept mildly comfortable and warm, despite its large size and concrete floors. This was a pleasant surprise, and it proved to be a valuable addition to my home during the colder nights.

I also appreciate the fact that this heater is quiet, as it allowed my cat to rest without any disturbances. This was crucial for his healing process, and I'm glad that this heater didn't make any noise that could potentially scare him.

I recently purchased the oil heater and I must say, I am quite impressed. The power output of this unit is as follows: 534 watts for low power, 782 watts for medium power, and a combination of low and medium heaters at once results in approximately 1265 watts for high power. However, it is worth noting that the high heat setting only lasts for about 5 minutes before the 782-watt heater shuts off until it cools down. Over the span of an hour, the heater used 0.93 kWh of power, which means that the long-term heat output is around 930 watts, slightly lower than what the manufacturer claims. Nonetheless, this is still sufficient to effectively heat a room.

One of the standout features of these heaters is their ability to radiate heat throughout a large area. I have one upstairs and one downstairs in my 900 sq ft. home, and the heat spreads evenly, sometimes even requiring me to turn it down or off completely. It has significantly reduced my electric bill and is easily adjustable to suit my needs. The unit itself is sturdy and safe, even allowing my puppy to lie against it without any concerns.

However, like many others have mentioned, the wheels tend to pop off when moving the heater around. They do not securely hook into place, possibly due to the lack of a notch inside the wheel. I would recommend investing an additional $14.99 in a set of casters to solve this issue. Despite this minor inconvenience, I still find the heater to be worth the purchase.

In terms of efficiency, these oil heaters are unbeatable. I have successfully heated a 12×20 room with average insulation and a concrete slab floor. Although it takes a bit longer to reach the desired temperature, once it does, it maintains a nice, even heat. I have not had the need to use the highest setting, but it is advisable to avoid using other high-energy appliances on the same circuit. Safety is also a top priority, and I have no concerns about using this heater around my pets.

As for reliability, it is too early to make a definitive judgment. However, the heater appears to be well-made with minimal moving parts, which leads me to believe that it will have a long lifespan.

Despite some initial concerns about the condition of the heater upon delivery, I am extremely satisfied with my purchase. The slight smell emitted during the first use was negligible, and the warmth provided even on the low setting was surprising. It has greatly improved the comfort of my living and dining areas, and I am now considering purchasing a second one for my bedroom.

The unit performs well and meets my expectations. I recently purchased two heaters for my temporary living situation where I only need to heat a small bedroom and bathroom.

I've noticed some misconceptions and misinformation being spread about heaters, so I'd like to debunk them and provide some clarity.

Firstly, there is an initial odor when the heater is first used due to the curing of the paint and burning off of any coatings or films. It's possible that wiping down the unit can help reduce this odor, but it is present nonetheless. Trust your senses, as not everyone may be able to detect it, but that doesn't mean it doesn't exist.

In terms of heat output, it's important to understand the laws of physics. The wattage of a heater determines its heat transfer capability. Whether it's a 1500w ceramic heater or a 1500w oil radiator, they will produce the same amount of heat transfer. The difference lies in the directionality of the heat dispersion and the dampening of temperature swings during cycling. The oil and fins in a radiator help diffuse the direction of heat and provide a smoother temperature graph over time. However, the actual heat output remains the same.

It's essential to note that 1500w of power for an hour is consistent across different heaters. Minor inefficiencies may exist, but they do not significantly impact the overall heat transfer into a sealed room. This oil-filled heater, like any other heater, consistently provides the expected heat transfer for its power consumption.

I recently purchased two of these oil-filled radiator heaters, one for my master bedroom and one for my bathroom, and I must say, I am extremely satisfied with my purchase. Unlike other, more expensive digital units, these heaters allow you to not only set how long the heater stays on but also the on time. This is a feature that I couldn't find in any other digital units.

One of the major advantages of these manual controlled units is that they can be easily placed on timers. This means that I can schedule the heater to turn on and off at specific times without having to manually operate them. For my bathroom, I use the insteon outlet and have set it to come on every day at sunrise and turn off around noon. For the bedroom heater, I use the GMYLE timer and have set it to come on only when the temperature outside drops below 32 degrees. This way, I can heat only the rooms that I need to, saving energy and money.

I have a heat pump upstairs, which is a very efficient HVAC system. However, it can get quite expensive to run once it gets too cold outside. By using these oil filled radiator heaters, I can heat just one room instead of the whole upstairs, especially during the extremely cold days. This not only helps in saving energy but also reduces the heating costs significantly.

One of the things I noticed during my usage of these heaters is that oil heaters take a bit longer to warm up a space compared to ceramic heaters. However, if planned accordingly with timers, they are much more energy-efficient to use. Ceramic heaters produce instant heat, but it quickly dissipates once the heater is turned off. Moreover, they are expensive to use, as I discovered during my own test using an electrical watt meter.

In addition to my personal experience, I also purchased one of these heaters for my laundry room to prevent water pipelines from freezing during winter. It is easy to operate, quiet, and has been working flawlessly. I couldn't ask for more from a heater, as it does exactly what was advertised.