10 Best Indoor Electric Heaters for Large Rooms In 2021

We all love our homes because they are our resting place and our sense of security. That is why we try to make them as cozy as possible by getting the best equipment to make our space appealing. I believe it is not surprising if you notice that a large percentage of your income goes into home improvement. We deserve to get the best indoor electric heaters for large rooms for the love we have for our space since they create more warmth.

I once heard of a makeup artist who chose to pursue that career because she wanted others to feel the warmth of someone touching their skin. It is amazing how a sense of warmth in a person’s life can impact them to make a career. Similarly, warmth and coziness in your home/ office space can offer you a sense of affection towards yourself and others. It may be a subtle feeling, but you will smile once you replace a cold breeze with a pleasurable, warm atmosphere.

Best Indoor Electric Heaters for Large Rooms Reviews 2021

These heaters do not heat your entire house; instead, they focus on providing warmth for one room. They are affordable so you can buy several of them for each room in your home. The best space heaters have unbeatable performance.

They prove this by using a mechanized thermostat that levels your temperature needs, versatile protection from overheating/ fires, and easy-to-use controls. These are the fundamental aspects of optimal execution in the best space heaters.

Top 10 Best Indoor Electric Heaters for Large Rooms 2021

There are many indoor electric heaters you will come across. However, not all are suitable for large rooms. There are key things you should consider to get quality electric heaters for large rooms. Check the top 10 recommended electric heaters for large rooms.

1. Lasko 755320 Ceramic Space Heater 

Lasko 755320 Ceramic Space Heater

Lasko Ceramic Space Heater comes with two quiet settings. The high and low setting for adjusting the heat level between high and low temperatures, respectively. Additionally, the automatic setting adds a margin of 40 to the value you input. Bearing widespread oscillation, the Lasko heater can distribute heat across the room within a short time. The digital display allows you to alter the 1500 watts ceramic heating attribute.

The display is easy to read; hence you can adjust the temperature range in degree Celsius or Fahrenheit. I love the remote control element since you can alter the heater settings from a distance. I believe most of you prefer using automatic operations over manual ones when handling different devices. Some of the control settings are temperature, timer, and oscillations. With the built-in timer, you can set the heater to operate for 8 hours with 1-hour intervals.

It includes safety protection features such as overheat protection, cool-touch exterior, and self-regulating ceramic attribute. The overheat protection prevents the heater from accumulating excess heat that could damage its structure. Bearing the cool-touch exterior, you can carry the heater without worrying about getting burnt. These safety features guarantee lifetime performance for the heater.


  • Lasko ceramic heater has a high and low setting plus an automatic setting.
  • It comes with remote control and a built-in timer.
  • The digital display is easy to read and adjust temperature elements.
  • It has overheating protection to prevent damage from excess heat.
  • The manufacturers deliver the heater after complete assembly.
  • It is perfect for your office or home by providing 1500watts.


  • The junction at the electric outlet of the heater is prone to excess heating.
  • Due to overheating, the external covering could melt after some time.

2. Infrared Heater Portable Space Heater

Dr Infrared Heater Portable Space Heater

Infrared in an Auto-Energy saving model with low noise performance and a rapid heating system. Since it uses infrared waves, it warms up your room in the shortest time. It includes high and low setting aspects for regulating the temperature. Moreover, the automatic setting sets the standard temperature in Fahrenheit/ Celsius after choosing your temperature range. It is soothingly quiet with noise production of 39 decibels, which is safe for you and your family.

It makes use of dual heating systems that bear infrared quartz tubes for rapid heating. Additionally, the Parametric Technology Corp (PTC) 12-hour preprogrammed shut-off timer is convenient. As you go on with your work, the heater will turn off automatically after completing its run time. With the IR remote control, you can have ultimate regulation over time, temperature, and oscillation settings.

The electronic thermostat has a digital display that is simple to read and easy to operate. It is as simple as controlling your Smartphone. The vent of the heater utilizes high pressure and low noise technology to optimize its performance. With castor wheels at the bottom of the heater, it is easy to move it and prevent it from tipping over.


  • The heater uses a dual heating system with infrared quartz tubes.
  • Dr. Infrared features overheating and tip-over protection.
  • It has a digital display for easy reading and adjusting.
  • The remote control is perfect for distanced operation.
  • The PTC 12-hour timer saves you the need to pay attention to the heater performance.
  • It has quiet execution, which is perfect for a working environment.


  • It has overheating issues at the power outlet.
  • The manufacturers do not honor their warranty agreement.

3. Best Portable Electric Space Heater 

Portable Electric Space Heater with Thermostat

The manufacturers of this portable electric space heater have indeed gone above and beyond to deliver a high-quality product. Its design and performance are top-notch. It is a two-on-one space heater that alternates between a low-temperature setting (750W) and a high-temperature setting (1500W). The heater also includes a cooling fan only setting, which makes the heater versatile. The heater has three control settings at the top; start/ stop, cooling, high, and low-temperature gauge.

The thermostat control is responsible for raising the room temperature when it drops below the preset temperature. Similarly, it automatically settles when the room warms up to the preset temperature. It ensures stable and efficient temperature execution. Working at low noise levels of 45 decibels, you can incorporate this cute space heater into your office and home space. Bearing a weight of 22 pounds and a handle, it is convenient for you to move around with it.

My favorite feature is the multi-faceted safety system. I would say that this is an attribute that most indoor heaters have failed. This portable electric heater has flame retardant material to guard you against fire hazards. The overheating protection system automatically turns off the heater when it overheats. Another safety feature is the tip-over protection that prevents the heater from falling.


  • The heater has a safety protection system against overheating, fire, and tipping over.
  • It has a thermostat control for stable temperature operation.
  • It includes a high and low-temperature setting plus a cooling air option.
  • Being lightweight and compact, it is easy to carry it around.
  • With PTC ceramic heating, it can cover 200sqft within seconds.


  • The heater has a strong plastic smell when it is new.

4. Vornado MVH Vortex Heater 

Vornado MVH Vortex Heater reviews

Vornado utilizes Vortex Air Circulation, which features an effective oscillation system. The system works like a forced-air furnace; therefore, it does not perform intense heating. It enables wide and fast warmth distribution in a small to medium-sized room. The heating system is convenient, smooth, and energy saving. I must say that Vornado has a commendable customer service that outdoes its rivals.

The protection system is remarkable. Firstly, it offers automatic power shut-off when the heater is no longer operational. Secondly, it protects the heater from running when it tips over. When the heater stops running, it is easier for you to reset it. Lastly, it includes a cool-touch exterior that prevents the heater from having a red glow if it overheats.

It works with three heat settings; low- 750 watts, medium- 1250 watts, high- 1500 watts. It optimizes heat output and saves on energy consumption. The thermostat has seven settings to accommodate the three temperature settings. It automatically goes off when the temperature exceeds the preprogrammed settings. When the temperature reduces, it begins heating again.


  • The heater uses Vortex circulation technology.
  • It has a versatile protection system.
  • It includes three quiet heat settings.
  • The thermostat setting stabilizes the temperature.
  • Vornado has a responsive customer service that customers appreciate.


  • The auto shut off on the bottom can stop working.
  • The fan may halt its performance after some time.

5. De’Longhi Mica Thermal Panel Heater 

De'Longhi Mica Thermic Panel Heater reviews

The panel heater provides full room warmth since it has 1500 watts, which boosts its performance. This panel heater uses conventional and infrared technology that builds its outstanding execution. With both technologies at work, the heater generates warmth across a room within the shortest time. It has a sleek design that sits well with any home or office design.

Since it comes as a complete unit, it takes you a short time to mount it on the wall. It includes multiple heat settings that allow you to preprogram the temperature as you desire. The thermostat control works harmoniously to ensure that the temperatures do not go above or beneath the bar you have set.

It is a lightweight and compact unit that you can carry with you to any room in the house or office. The handle allows you to carry it conveniently. Working without a fan since it uses a mica panel produces zero noise, offering you peace of mind. It is the perfect unit for creating comfort within your space at home or office.


  • It provides full room warmth.
  • Multiple heat settings for customized performance.
  • The thermostat control offers you personalized comfort.
  • The compact unit hence is easy to carry.
  • It does not produce any noise since it uses mica panels.


  • It has a weak plug that could melt.

6. Lasko 6405 Designer Oscillating Heater

Lasko 6405 Designer Oscillating Heater reviews

Lasko 6405 Designer Oscillating Heater is perfect for large rooms. This device heats the entire room producing the warmth and comfort you need. You can safely place it either on a table or on the floor. It is built with features to ensure safety. These features include; a cool-touch cover, overheat protection as well as a self-regulating earthenware aspect.

The electronic controls are easy to operate. These controls are at the top of the device for easier accessibility. They include; an automatic thermostat, widespread oscillation, two heat settings, and a timer mode. Lasko 6405 offers 1500 watts of heat that provide enough warmth in your large room.

It also comes with a 7-hour timer to help you enjoy the warmth for a longer time without the need to keep setting the heater. This is a unique device with an ergonomic design. It comes fully assembled, no need to do any assembling, only to connect it to a power source.


  • Very powerful as it provides 1500 watts.
  • Safe to use as it comes with an overheat protection.
  • Functions in an oscillation manner to distribute warmth to a large room.
  • Comes with a 7-hour timer plus an auto shut-off mechanism.
  • Easy to carry and operate.


  • Lacks a remote control.
  • Uses more energy.
  • It cools down very fast after going off.

7. Oscillating Space Heater

Oscillating Space Heater reviews

Oscillating Space Heater is a lightweight and portable device that you can move from one place to another. It is slim hence consuming very little space in your room. It has a remote control that allows you to make temperature adjustments easily. It helps to avoid direct contact that could result in burns. It has three power modes; low, medium, and high heat that differ in power usage from 800 watts up to 1500 watts.

The heater is ETL Certified that ensures it is safe for use. It has an overheat protection mechanism as well as an automatic fail-safe that protects it from tipping over. It is perfect to use in a large room since it has an oscillating fan that rotates in all directions heating the entire room evenly.

It comes with an 8-hour timer that automatically shuts off. Also, it has a thermostat that helps to prevent overheating as well as stuffiness in the room. Oscillating Space heater saves more energy since it has an ECO mode that helps to regulate the heat output. Also, the ceramic cover determines the amount of heat it produces.


  • Lightweight and portable for easy transportation and storage.
  • Comes with an 8-hour timer that shuts off automatically.
  • Has an ECO mode to save power.
  • ETL Certified to ensure safety.
  • In-built digital thermostat to prevent overheating.


  • Comes with a very short power cord.
  • Can be tilted easily due to the less weight.

8. Lasko 5160 Ceramic Tower Heater

Lasko 5160 Ceramic Tower Heater reviews

Lasko 5160 features digital controls at the top plus a display for easy use. It comes with a remote control system that allows you to regulate heat while on the couch. It has two heat settings; high and low heat.

It comes with a widespread oscillation mechanism allowing the large room to get even heat. It provides 1500 watts at a high heat setting that ensures that you get warmth even when in a large room. The device is safe to use and operate as it comes with a cool-touch cover plus overheat protection.

You will get it fully assembled; hence your work is easy. Start using it directly from the box. The heater has an adjustable thermostat that helps to save power. The patented blower-technology plus a 23-inch ceramic element improves heat penetration giving you comfortable warmth. The device is ETL Certified, safety is guaranteed.


  • Easy to use and operate.
  • The multi-functional remote control system.
  • Widespread oscillation to spread warm air in a large room.
  • Adjustable heat functions with low and high heat.
  • Extended ceramic part for extensive warmth.
  • Durable steel material plus other quality housing materials.


  • A bit heavy to carry from one room to another.
  • Digital thermometer not very accurate.

9. Life Smart Large Room Infrared Heater

LIFE SMART LifeSmart Large Room Infrared Heater

Life Smart Infrared Heater is a wooden device that provides comfortable infrared warmth in a large room. It comes with six wrapped infrared constituents that produce heat faster. These also help to get more heat that distributes evenly across the room. It is portable with some glide casters to help you move it from one area to another with ease.

The heater produces a maximum heat of 1500 watts. With its elegant wood cabinet, it blends perfectly with other furniture in the room. The heater comes with remote control for easy heat controls. Life Smart comes with three different settings where there is low heat, medium heat, and high heat settings. The ECO mode helps to regulate the amount of heat it produces hence saving power. The low setting consumes 500 watts and heats a room to about 68 degrees.

The 12-hour timer automatically switches on and off and keeps the air moisturized and comfortable. The heater has an incorporated air filter that purifies air in the room. The filter is very convenient as it is washable. The digital thermostat and display allow easy operation and provides precise room temperatures.


  • Made of very durable metal and wood materials.
  • Produces very little noise while in operation.
  • It is easy to move and operate.
  • Maintains the humidity of the room.
  • The remote control makes the use easy and comfortable.


  • The device needs reprogramming once it turns off.

10. De’Longhi Oil-Filled Radiator Space Heater

De'Longhi Oil-Filled Radiator Space Heater

De’Longhi Oil-Filled Radiator Space Heater is a perfect indoor heater for a large room as it measures 250 square feet.  It produces 1500 watts that heat a room giving everyone its comfortable warmth. The high-quality materials and patented steel make it durable. The oil reservoir has a permanent seal hence no oil refilling or oil leakage.

It is very safe to use since it has an anti-freeze mechanism that prevents pipes from freezing. Also, it has a thermal cut-off that prevents the device from overheating. The heater comprises three settings; low heat, medium, and high heat settings where you choose depending on your heating requirements.

The heater has rust-proof metal making the device to serve you for a long. It saves energy since it heats up fast and produces heat that is just enough for the room. The heat slots help to maintain the low surface temperature while ensuring the maximum flow of heat. The smart-snap casters allow you to move the heater with ease.


  • More metal construction to ensure stability.
  • Offers efficient heat using less power.
  • It is lightweight and has casters for ease of transport.
  • Adjustable thermostat for desired room temperatures.
  • Tip-over plus thermal overload guarantees safety.
  • Strong and durable construction.


  • Lacks digital temperature displays.
  • A bit expensive device.

What Is the Best Type of Space Heater for a Large Room?

There are three types of electric heaters in the market. These include conductive, radiant, and convection heaters. Conductive heaters are the best for heating a large room because they offer widespread heating within a short time.

These heaters are portable. You can move them from one corner of a large room to the other with ease. Examples of conductive heaters are electric space heaters and micathermic heaters.

Some conductive heaters come with a fan. Those with a fan tend to heat the room quickly since the heating elements contact the room air. The fan also helps to distribute heat evenly throughout the large room.

When selecting a space heater for a large room, look for a portable heater that you can easily transport from one corner to the other.

Factors to Consider When Buying Heaters for Large Rooms

When buying a heater for a large room, there are some things that you should take into consideration. These include:

Heating capacity

A large room requires a heater with a high heating ability. For instance, a 10 watts heater cannot heat a 150 square feet room. In this case, you need a heater with a heating capacity of 1500 watts.


You need to be very keen when choosing an indoor heater for a large room. Some of the safety features include; shock-proof body, overheat protection, a cool-to-touch mechanism, and an automatic on and off the system.

Noise levels

Electrical appliances produce some noise while in operation. It is good that you look for an indoor heater with low noise levels to avoid noise disturbances.

Remote control

This is an essential feature to look out for since it helps you change the heaters setting without movements. You only need to control the device from your seat.


A heater with some casters plus a handle makes it easy to move the device from one corner to the other in the large room.


Different heaters come at different prices. The Oil-filled heaters are the most expensive, followed by ceramic and then the infrared. Go for the affordable one that will meet your room temperatures need.

Safety features to look for

Before purchasing a space heater, it is good that you check whether the device has the following safety features:

Shut-off mechanism

This sensor shuts off automatically in case the heater gets overheated.

Strong cord

Look for an electrical wire that is of high quality long enough. It is good to plug in the wire cord directly to the power outlet instead of an extension.

Cool-Touch cover

This housing helps prevent any burn when one touches the heater’s exterior part. It is of great importance in rooms with pets and kids.


The safety certification label is very crucial.  Be sure that the organization is well known, for example, CSA International, ETL, or UL mark.

Ground-fault Circuit Interrupter Plug

This helps to prevent shocks. Make sure that the heater you purchase has one.

Knock-over protection

The switch switches off the device automatically once the heater tips over.

Can you find a quality large room space heater that is affordable?

Yes, you can. There are a variety of brands in the market at different prices. Some are very expensive while others are cheap. Remember that not all that is expensive is good and not all that is cheap is poor. Look for an affordable one with the features you require.

How much does a space heater for a large room cost?

Different manufacturers produce heaters of varying prices in terms of quality plus features. You will get a heater as low as $50 up to $1000 or more. Look for one that will satisfy your warmth needs.

What size of space heater do I need for a large room?

The size of a space heater will determine the area it will heat up. Roughly, a ten watts heater will heat one square foot area. If your room area is 100 square feet, then consider buying a 1000 watts space heater. In case you are using a gas heater, multiply 1000 watts by 3.41 BTUs to determine the heater size.

How to Safely Use a Space Heater?

The following are safety tips to use when using a space heater:

  • First of all, ensure you read through the instruction manual of a heater to understand your device.
  • Always position the heater on a hard, non-flammable surface. It is good that you set it on the floor.
  • Always turn the heater off when going to bed or leaving the room.
    Ensure you leave a 3-foot space to keep your kids of pets free from the heater.
  • Avoid plugging another electrical appliance into an extension where you plug in the heater to avoid overheating.
  • Ensure you unplug the device when it is idle. Also, check the cord to ensure it is in good condition.
  • Do not put the heater near any combustible material like curtains or furniture.
  • Avoid using a space heater in a garage or workshops since the gas cans, paint, and matches can cause a fire.
  • Use the heater for the right purpose, only to supplement heat in the room. Avoid using it to dry clothes.
  • Conduct frequent check-ups to ensure that all the parts are functioning well and are in good condition. Change where necessary.

Frequently Asked Questions

Where to place a heater in a large room?

A confined space

You may have thought that an electric heater is supposed to heat the entire house. However, it is for generating warmth for a specific room or space. Then, if that is the case, you should position the heater close to where you are at the moment. It will not be a problem since most electric heaters are lightweight. When placing it, remember to distant it from openings such as windows for optimal warming.

Avoid moisture

Just like all electric devices, your electric heater should avoid moisture because electricity and water are explosive. If you want warmth in your bathroom or laundry room, choose a room heater specifically for damp surroundings.

Avoid the wall

You should place your space heater two feet away from the wall. It is because most electric heaters have their vents and exhausts at the back of their structure. However, electric heaters such as Lasko have their vents at the front. Remember to distance the heater from flammable material such as fabric.

Generally, avoid water, openings, and walls when positioning your heater. Additionally, your children or pets should not have access to the heater to not get hurt.

Are space heaters for large rooms energy saving?

Yes, they are. We can categorize electric space heaters into four types; infrared/ radiant heaters, convection, panel, and ceramic heaters. Among all of them, the most energy-saving heaters are the convection heaters because they focus on providing warmth for an entire room. Even if you place it in a locked position, it will take a short time to heat the whole room.

Ceramic heaters circulate air while generating heat. That is why they do not overheat. Infrared or radiant heaters focus on a specific object or person. They have a narrower heat distribution across the room, but they work faster than the other heaters. Last but not least are the panel heaters that combine infrared and conventional technology. Therefore, they have a wider distribution while heating rapidly.

How much electricity does a space heater use?

There are three steps you need to take to figure out how much electricity your heater consumes.

Check the wattage of your indoor electric heater.

Most heaters have a wattage of 1500, so we will use it as an example.

Convert the wattage to kilowatts

Since kilowatts is the standard unit for measuring electricity, we convert 1500 watts to kilowatts.

1kilowatts= 1000watts

1.5kilowatts= 1500watts

Then multiply the result by the number of hours you use your heater. Let us take 8 hours as an example.

1.5×8= 12

The result is 12 kilowatt hours.

If you want to go farther and find the price, multiply the above result with charging kilowatt-hours. If the price is $0.25, then the total cost per day is $3.0

Final Verdict

I hope you got your answers and suggestion from the review of the best indoor electric heater for large rooms. You may want to buy a new one or replace your older model, but all the same, all the listed space heaters are eligible. I am pretty sure you prefer one that has powerful performance and longevity. Even more, a company that has responsive customer service has better qualifications.

As far as performance and longevity are concerned, I prefer the Portable electric space heater. I love the versatile protection system that features protection from overheating, tipping over, and fire hazards. The upgrade ABS material has played a vital role in guarding the entire structure against melting. I like Vornado for customer service because they always stay on the phone with you until you find a solution. They value their customers.

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