10 Most Powerful Heaters for a Large Room That Won’t Let You Down

We gathered ten heaters capable of heating a large space, ranging from forced-air and infrared to oil models.
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Last updatedLast updated: September 18, 2021
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As the cold months kick in, you want the best heater for your large room, right? Well, getting the right heater is easier said than done. There are several types of space heaters on the market, and making the correct choice can be a daunting task. Do not fret, though, because in this post, we will review some of the best heaters for large rooms that you can buy right now.

Some families have central heating, which is great but still comes with certain disadvantages. An indoor electric space heater is so much better for heating a room or just a space. Since there are numerous models, we took the time to research the best ones on the market. In choosing, some of the factors that we considered include the type of heater, the room size it’s able to heat, and extra features like a timer and eco mode. We will discuss these in detail later in the buying guide. In the meantime, let us consider our top picks.

Top 10 Heaters for Large Room Review 2022

  • Type: forced air/ convection
  • Power source: corded-electric
  • Wattage: 4000W
  • Dimensions: 16.5 x 19.5 x 13.63 in
  • Warranty: 2 years

Other features: dual-fan model; wall-mounted; for a room of up to 600 sq. ft; 240V; built-in thermostat available; dual high-temperature safety shut-off; UL listed

Our top pick is Cadet 67527. It is a popular choice among buyers for several reasons. The product offers plenty of power, up to 4000 watts, and can easily heat up spaces of up to 600 square feet. While that isn’t the biggest or most powerful on this list, it is often enough to meet the requirements of most people. It also comes with some extra features that come in very handy and make it an excellent choice.

If you have a small family and you want to heat up a space for them, you will likely love using this option.

One of our favorite things about the Cadet 67527 is that it is easy to install. All of the hardware that you need to set it up is included in the package. This includes the wall can, wall grill, and a thermostat.

The unit is safe to use and is energy efficient. For example, it is built with an automatic overheat function for safety and that improves the durability of the heater. There is also a fan that ensures that the heat reaches all parts of the space.

What makes it stand out?

  • This is a powerful heater that you will likely find easy to install and that provides good heating.

Which disadvantages must you keep in mind?

  • The downside of the heater is that if you want your own thermostat, you might have to look for another model to buy.

Mr. Heater F274830 MH18BRV Big BuddyBest Propane Heater

  • Type: radiant
  • Power source: propane
  • Wattage: N/A
  • Dimensions: 19 x 12 x 17.75 in
  • Warranty: 1 year

Other features: 3 heat settings with 4,000 to 18,000 BTU; for spaces up to 450 sq. ft; tip-over protection; suitable for RV

As we will see later in the buying guide, there are different fuel sources for space heaters. One of the most effective and powerful sources of fuel is propane. There are several heaters for large rooms that are powered by propane. Out of all the options that we have reviewed, the Mr. Heater F274830 is the best propane-powered heater.

This is a great natural gas space heater for your large room. There are some unique advantages that radiant, propane heaters have over some of the other types of heaters. For one, as a space heater that runs on propane, it does not stop working even after there is a power outage. If you don’t have power, you can still remain warm on a cold day.

Apart from that, it also has certain advantages over the regular propane heaters on the market. One of the best things about it is that it is a blue flame heater. This means that you don’t need to vent the heater.

The power of this heater is not really surprising. It comes as a 30000 BTU gas heater that will heat 1000-square-feet rooms.

Installation is straightforward and easy since it comes with necessary hardware like brackets. You can also decide to place it on the ground.

There are some protective features like the shutoff sensor.

What are our favorite features?

  • This is the best propane-powered heater for large rooms. It comes with a blue flame operation that doesn’t require any venting.

What could be better?

  • Cleaning and maintenance is particularly cumbersome because of the front grill.
  • Type: forced air/ convection
  • Power source: corded-electric
  • Wattage: up to 1500W
  • Dimensions: 32.2 x 3 x 21.8 in
  • Warranty: 3 years

Other features: 5,120 BTUs; 3 heat settings; overheat and tip-over protection; anti-freeze setting; freestanding or wall-mount installation; energy-saving mode; adjustable thermostat

This is a return to the electric space heater. The De’Longhi HCX9115 is a panel heater that offers portability and several nice features that you will find really useful. One of our favorite things about this model is that you can set it up right on the wall.  It offers you a really easy way to control the heating of a space. Therefore, you can use it to keep several parts of the home warm during the winter.

It is energy efficient, and this means that you will not experience a serious increase in your electric bills. Out of the several panel heaters on the market, several users consider this to be the best option.

There are numerous reasons why panel heaters are so preferred, and these advantages are especially pronounced in this model. It comes with side knobs that let you choose the temperature that you want. You also get a pretty dope design that allows you to use it for different décor.

Part of the benefits includes safety. The De’Longhi HCX9115 comes with overheating protection. Therefore, the panel heaters do not overheat. You will therefore have peace of mind.

Why are we impressed?

  • This is a beautiful panel heater that comes with plenty of heat options. It will certainly assist you to get the best heat control for the home.

What negatives must you be aware of?

  • Some users have complained that the high-temperature warning sometimes malfunctions and goes off without the panel being hot.

Dr. Infrared Heater DR-968Best Infrared Heater

  • Type: infrared/ radiant
  • Power source: corded-electric
  • Wattage: up to 1500W
  • Dimensions: 13 x 11 x 16 in
  • Warranty: 3 years

Other features: dual-heat technology; overheat and tip-over protection; 12-hour timer; electronic thermostat; remote control; UL listed; 39 dB noise level

Smart technology has come a long way, and this time, you find it in the Dr. Infrared Heater DR-968. The Dr. Infrared Heater brand is one of the most popular brands in its category. It makes some really high-quality products that many have remarked about. This particular model offers you plenty of value for the money. It comes with plenty of power and heating capacity that you and the family will certainly love.

It comes with an infrared heating mechanism, which is one of the most effective heating systems. The infrared heating technology is safe and will provide efficient heating. In this type of heating, wavelength infrared emission is what will warm you up. It is powered by electricity, but despite the heating capacity, it does not use plenty of power.

Another thing that we liked about this is the cord. From our observation, this cord is long and durable. The construction ensures that it resists any direct heating. The thick build also ensures that it will absorb heat and pressure without sustaining damage.

The unit is one of the most durable models that we have tested and can be left for a long time without supervision and you don’t have to worry about starting a fire.

Why is it special?

  • This has a 1500W power capacity and will heat up a large space comfortably. It is energy efficient and uses quartz infrared technology.

What are the flaws?

  • The heater heats up slowly. It also comes with a loud fan motor.

Honeywell Digital Ceramic Tower Heater with Motion SensorMost Energy-Efficient Heater

  • Type: forced air/ convection
  • Power source: corded-electric
  • Wattage: up to 1500W
  • Dimensions: 8.7 x 6.7 x 23.1 in
  • Warranty: 3 years

Other features: motion sensor; overheat and tip-over protection; programmable thermostat and timer; remote control

Up next is a heater from a relatively popular brand in the industry. The Honeywell Motion Sensor Ceramic Convection Heater is one of our favorite options on the market and many users believe it to be one of the best ceramic heaters right now.

It is a corded electric model. As this is also a ceramic heater, some are worried about the cost of running such an appliance. Well, we are pleased that there isn’t a lot to worry about here. This model is an excellent option that is durable and will offer efficient performance. Therefore, you should not worry about the costs of running the appliance.

It comes with a powerful heating performance that will help to heat up a large space. The design is excellent and portable. Therefore, you can have this heater in different spots in the home.

There are other extra features that we found really useful. For instance, the appliance is made with a motion sensor. This comes in very handy in helping you to conserve energy.

You also get safety features that reduce the chances of any accidents in the home as a result of using the heater. For instance, there is the overheat and tip-over protection.

What are our favorite features?

  • This is a safe, portable heater that offers good value for money. It is durable and comes with nice safety features.

What could be better?

  • The appliance comes without the fast heating performance of some other options.
RELATED: 10 Best Space Heaters – Tremendous Boost to Your Heating System!
  • Type: infrared
  • Power source: corded-electric
  • Wattage: up to 1500W
  • Dimensions: 13.07 x 24 x 23.4 in
  • Warranty: 1 year

Other features: 5,200 BTU; 3D flame effect technology; adjustable thermostat; remote control

A fireplace is the traditional center of heating for many homes. However, the danger of such a place in the home makes many people uncomfortable. Is there any way to get the fireplace treatment with none of the risks? Well yes. With the Duraflame 3D Infrared electric fireplace, you have an appliance that gives you this.

The appliance is from the Duraflame brand, a brand that has been known for the impressive quality of its products. It has made several products for the home, ranging from air purifiers to heaters. This is one of the best options that we have discovered.

The design is the main draw here. It looks like a real fireplace, with the manufacturer going to great lengths to ensure that the flames look real.

The installation and setup are straightforward and easy. With some DIY skills, you should be able to set up the whole thing yourself.

After you have installed and correctly positioned the heater, you can enjoy a nice performance. The operation is really simple. You get up to four main controls for the power, temperature, time, and flame. These are all easy to see and use.

The model also comes with a safety feature that is not found in several other heaters. It is built with a thermometer that will alert the appliance to shut down if the temperature gets too high.

What stands out?

  • This is the best electric fireplace on the market. The 3D design makes the flame look real and it offers a similar heat to the space.

What cons did we manage to find?

  • This is one of the more expensive models on this list. Also, you cannot place any items on top of the heater as it grows pretty warm.
  • Type: infrared/ radiant
  • Power source: corded-electric
  • Wattage: up to 1500W
  • Dimensions: 18.75 x 4.5 x 12.75 in
  • Warranty: 1 year

Other features: 5,200 BTU; 2 power modes; built-in thermostat; proprietary HMS Technology; remote control

We consider several wall heaters on the market today, digging through hundreds of reviews to find the best options. Well, as part of the results, the Heat Storm Phoenix HS-1500-PHX comes as an excellent option and one of the best heaters for a large room. It comes as an infrared heater that runs on electricity.

If you are looking for an electric heater that comes with features that lie against the grain of your regular heaters, then you will especially appreciate this model. It sets itself apart from the others because of the smart features that it offers. Due to these, you have a model that is safe and efficient.

The unit comes with ventilation shields that remain cool to the touch. Therefore, you do not run the risk of burning yourself, your children or your pets. As the heater is available in a compact size, you can use it in a small room easily.

The controls here are really good and easy to get through. For example, you can control the temperature via the remote control or by downloading the app. Therefore, you do not have to be in the same room with the heater before you can control it.

Another nice thing here is the ease of installation.

What are its best features?

  • This is a user-friendly model that comes with smart features and the ability to control it from the app.

What could be improved?

  • Some users have noted that the Heat Storm Phoenix HS-1500-PHX is rather loud. It also doesn’t offer the best performance in a very large room.
RELATED: 10 Most Effective Infrared Heaters to Make Your Home Warm and Cozy

Lasko 755320Best Value

  • Type: forced air/ convection
  • Power source: corded-electric
  • Wattage: up to 1500W
  • Dimensions: 7.25 x 7 x 23 in
  • Warranty: 3 years

Other features: 2 heat settings; adjustable thermostat; 8-hour timer; digital and remote control; carry handle

Do you have limited heating options in your space? If so, we believe that you will find this to be an exciting option for you. This electric heater is built in a nice design and compact form that you will really find enjoyable. It comes with enough power to help you heat up a relatively large room without much stress. It is compact, which means that you will likely find it easy to move around. With this heater, you can have a warm time without having to worry too much about the cold.

The construction is one of the best things about this option. It is made of fiberglass and a round design that will allow it to fit into tight spaces.

It is a useful model that you can program to carry out specific instructions. There is a remote control and oscillation that helps you to spread warm air through the space evenly.

Safety is important, and it is certainly not compromised here. To that end, the internal parts of the unit will shut down when the heater reaches certain temperatures.

What makes it special?

  • This is a heater with a really good price point, lovely and durable design, and excellent heating that you will find useful all winter.

What cons did we find?

  • The model has been reported to be too hot to handle at times.
RELATED: 5 Excellent Electric Heaters for RV – Travel with Comfort in Coldest Weather

AmazonBasics Portable Eco-Smart Space HeaterBest Energy-Saving Heater

  • Type: infrared/ radiant
  • Power source: corded-electric
  • Wattage: up to 1500W
  • Dimensions: 13 x 12 x 16 in
  • Warranty: 1 year

Other features: dual-heating system; over-heat sensor; adjustable electronic thermostat; 12-hour timer; remote control; ETL certified

Are you on a budget? If so, you will find the AmazonBasics Portable Eco-Smart Space Heater to be an affordable yet highly reliable model that will meet your needs.

This heater weighs around 23 pounds, which makes it one of the heavier options on this list. However, it is still movable. It comes with a really nice wood finish that will look great in most décor. Part of the design includes the LED display. During our research, many reported that this was very functional and easy to read.

It offers a dual heating system with a pair of power settings. This, coupled with the Eco-Smart settings, ensures that you save plenty of energy.

The model comes with nice safety features. For example, it is designed with a tip-over switch and overheating protection. Additionally, there is a timer that ensures that the heater switches off itself after a set time.

Despite the price, this is a reliable and powerful option that can heat up a room of up to 1000 square feet. An added advantage is the availability of remote control.

Overall, this is an excellent heater for anyone with pets or children. It is easy to use and set up and will ensure safe and reliable heating all winter long.

Why is it special?

  • This model comes with features that ensure top operation and safety. It is affordable and quiet.

What are the flaws?

  • One of the things that we noticed which we did not like is that the underside of the model gets pretty warm.
RELATED: 8 Best Heaters for Baby Room – Child Is The Priority!

De'Longhi Oil-Filled RadiatorBest Oil Heater

  • Type: oil/ radiant
  • Power source: corded-electric
  • Wattage: up to 1500W
  • Dimensions: 16.4 x 10.3 x 26.1 in
  • Warranty: 3 years

Other features: 3 heat settings; adjustable thermostat; 24-hour programmable timer; over-heating protection; cord holder; eco mode

Approaching the winter season without having a heater in the home can be a dangerous experience. It is necessary to keep warm in such cold months. There are different types of fuels used in powering heaters, and the oil-filled heater is one of them.

The De’Longhi Dragon is the best oil-filled heater that we have considered. It comes with the ability to keep the home safe and help to maintain the moisture of the space. There are several types of oil heaters on the market, and this model is certainly our best option.

This model is really efficient due to the chimney effect that improves the flow of air. There is also a large fin area and a large radiant surface that improves the flow of air.

There are three types of settings you can choose from here. It is also designed with a thermostat to adjust and determine the temperature of the room.

Why is it special?

  • This is the best oil-filled heater. It comes with a beautiful, elegant finish and is easy to set up.

What are the flaws?

  • At almost 27 pounds, it is the heaviest so far. It still proves hard to move despite the wheels.
RELATED: 7 Most Effective Heaters for Uninsulated Garages — Keep It Warm Whenever You Need It!

Things to Consider

In the review section above, we considered 10 of the best heater for a large room. The list of 10 will help anyone looking to buy a heater to narrow their choices. You might be looking for a model other than what we have reviewed so far, or you might just be curious about the features to consider before you buy a heater. In this section, we will consider all the important information that will help you choose wisely. We will also discuss how to pick the best heater for a large room.

Heating Area

This important feature refers to the size of space that the heater can work in. If you are using an infrared heater, it might not come with a lot of power and might be better as a supplementary means of heating the space.

Propane heaters, on the other hand, can heat up much larger spaces.

Some models can heat up large spaces, like the AmazonBasics Portable Eco-Smart Space Heater.


The first thing to look out for when buying a heater is the type of heater. There are several types of heaters on the market right now. Knowing how these work to distribute heat will help you to decide which of them to buy.

Radiator Space Heater

10 Most Powerful Heaters for a Large Room That Won't Let You Down

This type of heater is the simplest type of heater. It is dependent on the heating element. The heating element heats up and the heat radiates from the element. It often runs on electricity and this is what generates the heat.

The electricity runs through it, and the resistance to the electricity is what increases the heat of the element. The heat then moves out of the element to the air and warms you.

In this category, there are still some types.

  • Oil

This heater has the elements immersed in an oil tank. Due to the heating mechanism, it will still give off heat even when the power is off. It can continue heating the space for up to forty minutes.

  • Metal

In this type of space heater, the bare metal element is what radiates the heat.

  • Ceramic

Some of the best radiator space heaters come as ceramic options. They have their elements covered in ceramic. Due to the material of construction, they are more expensive than your typical heater. However, they hold heat better and are more efficient. Lasko 755320 Ceramic Space Heater is an example of this.

  • Fan

The fan option works by expelling the heat from the heated element into the room. Because of the fan, hot air reaches most parts of the space.

  • Infrared

While you might be put off by the ‘infrared’ moniker, there really isn’t anything to be scared off here. This type of heater gives off heat in a way that will gently heat up the objects in the space. The radiation is weak and will not penetrate your skin. Unlike the others, infrared radiation will heat up objects and not the air. An example is Duraflame 3D Infrared Electric Fireplace.

Convection Space Heaters

Another type of space heater is the convection space heater. This is a hybrid heater that might use different heating elements and technology to create and disperse heat. Therefore, you can find convective space heaters that use metal, infrared, or ceramic to disperse heat. One example is Cadet 67527.

Propane Heater

Another type of heater is the propane heater. As the name implies, this runs on natural gas instead of electricity. The heater will completely burn the fuel, thus giving you plenty of heat without the creation of dangerous gases.

This type of heater is excellent if your space is poorly insulated. An example here is Mr. Heater F274830.

Electric vs Gas Heater

So, which is better between these two types of heaters? Let us consider the advantages and cons of each type.

Pros of Electric Heaters

  • It is often easy to use
  • Compact, portable, and easy to move
  • Usually have precise temperature control
  • Affordable
  • Safer to use

Cons of Electric Heaters

  • Electricity is more expensive than gas

Pros of Propane Heaters

  • Higher heat production
  • Lower operational costs
  • More affordable than large electric heaters

Cons of Propane Heaters

  • Risk of carbon monoxide production
  • Cumbersome to move

Overall, you should choose an electric heater in most cases. The only exceptions are when you need plenty of heat for the space.

Heat Settings and Wattage

10 Most Powerful Heaters for a Large Room That Won't Let You Down

Another important thing to consider when choosing a space heater is the heat setting of the heater. The wattage is an important consideration that will determine the cost and power of the infrared heater.

Several of the infrared heaters that we have found on the market come with 1000 to 1800 watts of power. The heat settings offered are another important consideration.


The timer feature is exactly what it sounds like. The heater should have a timer option. While this is not absolutely necessary, it is a useful and important feature. It comes in very handy and allows you to switch off the heater or turn it on at a set time. Some of the options that we have reviewed come with 12-hour timers.


One worry that people have is that the gas heater might create gases that are dangerous. However, propane heaters are pretty safe to use. As long as you follow the instructions from the manufacturer, you shouldn’t have any problems with these heaters. You can enhance safety by ensuring food ventilation for the heater.

A modern space heater does not pose any danger even if left without supervision. These are usually made of high-quality materials and boast excellent safety features like overheating protection and automatic switch off.

If you choose a good quality model, you don’t have to worry too much about your energy costs. Several of the electric heaters on the market come at affordable prices and feature energy-saving functions.

Our Verdict

It is very important to have a heater in your home, especially because of the winter. We have highlighted 10 of the best options right now. Our top pick, Cadet 67527 4000-watt Com Pak Twin Electric Wall Heater is a powerful heater that you will likely find easy to install and that provides good heating. Mr. Heater F274830 MH18BRV Big Buddy is the best propane-powered heater for large rooms. It comes with a blue flame operation that doesn’t require any venting. The De’Longhi HCX9115 Panel Heater with Dual Fan is a beautiful panel heater that comes with low power but plenty of heat options. It will certainly assist you to get the best heat control for the home.

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