If you are looking for the best space heater in 2025, then you will find that this is one of the most comprehensive best space heaters for large rooms that you have ever read. We want to provide you with all of the important benefits and details that you need to know before you go ahead and purchase a new space heater.
There are many space heaters available, and we have taken a look at many of them and provided the best 10 for you to choose from here. We took a good look at all of the features offered by these space heaters and assessed the pros and cons of each product. We also took the views of the customers who purchased these heaters into consideration.
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Best Space Heater For Large Room Reviews: Top 10 (Updated 2025)
Yes, there are other best space heater reviews out there, but you are unlikely to find one as comprehensive as this. We want to make sure that you have all the important information available so that you can make the right purchase decision. You can see an overview of our top 10 space heaters for large rooms below:
| Ranking | Product | Features | Our Rating | Check Price |
| 1. | Dr Infrared Heater Portable Space Heater Review | 4.8/5 | 4.6/5 | VIEW ON AMAZON |
| 2. | EdenPURE CopperSMART 1500-Watt Electric Portable Space Heater Review | 4.8/5 | 4.3/5 | VIEW ON AMAZON |
| 3. | AirNmore Comfort Deluxe with Copper PTC, Infrared Space Heater Review | 4.3/5 | 4.3/5 | VIEW ON AMAZON |
| 4. | Dr Infrared Heater Portable Space Heater Review | 4.6/5 | 4.3/5 | VIEW ON AMAZON |
| 5. | Lasko 6405 Designer Oscillating Space Heater Review | 4.5/5 | 4.2/5 | VIEW ON AMAZON |
| 6. | Trustech Portable Space Heater, 1500W Electric Space Heater Review | 4.5/5 | 4.2/5 | VIEW ON AMAZON |
| 7. | LifeSmart 6 Element Quartz Large Room Infrared Space Heater Review | 4.4/5 | 4.2/5 | VIEW ON AMAZON |
| 8. | DeLonghi HMP1500 Mica Panel Space Heater Review | 4.4/5 | 4.0/5 | VIEW ON AMAZON |
| 9. | DeLonghi EW7707CM Safe Heat 1500W Oil-Filled Radiator Review | 4.3/5 | 3.9/5 | VIEW ON AMAZON |
What is a Space Heater?
A space heater is a convenient product designed to heat a specific space and quickly raise the temperature in that space. They perform best when used to heat a space that is closed. Space heaters are available in different styles and sizes, and some of them can use combustion fuel, but most use electrical power.
Some space heaters use radiant heat, which is usually the most cost-effective method for heating. There are other types of space heaters that we will explain below. So if you do not have central heating (or don’t want to use it), then space heaters can do a great job keeping your rooms warm. They heat up quickly, so you will feel the benefit immediately.
How does a Space Heater work?
There are two main types of space heaters, which are “convective” and “radiative”. We will take a look at how both of these types of space heaters work:
Convective Space Heaters
Convective space heaters use wire elements to provide heat. A wire element is not effective at transferring heat to the air, so most space heaters have a fan to assist in the flow of warm air.
The wire element in the space heater will become hot when connected to an electrical outlet. A fan will then transfer the heat generated by the element to the surrounding area or space. Electrical wire element space heaters will warm up a lot faster than an oil-filled heater, for example.
It takes a lot more electricity to make an oil-filled space heater warm than it does a fan and element heater. These days, the manufacturers of fans and element heaters are making them smaller all of the time, so it is a lot easier to use them where space is restricted.
Radiative Space Heater
The most common form of radiative space heater uses infrared energy to create heat. A space heater of this type will emit infrared radiation to objects that are directly in its line of sight. If you only want a specific part of your room heated, then this can be an efficient way to do it.
Radiative heaters are a lot more efficient than convection heaters. This means that the running costs for this type of space heater tend to be lower. The biggest problem with radiative heaters is that if you are outside of the field of vision, there will be no heat benefit for you.
Is a Space Heater good?
There are some benefits to using a space heater. One of the most important benefits is that they can save you money. Rather than switching on your central heating system for the whole house, you can heat single rooms with space heaters. So if you tend to use one room often, it can save you a lot of money just using a space heater to make it warm.
It will cost you a lot more money to heat a room to the same temperature that a space heater can if you switch on your central heating. You could have your central heating on to take the chill out of your rooms, and then use a space heater to make the room you are in very cozy.
Usually, space heaters are pretty inexpensive to purchase. The technology used in space heaters is fairly basic, and there are no complicated mechanics used to generate heat. Usually, a space heater will be energy efficient and not consume a great deal of electricity. This is particularly true with radiant-style heaters.
Most space heaters have a good design and are simple to use. All you need to do is plug them into an electrical outlet and then set the temperature to what you require. It doesn’t get any easier than that.
Some of the more sophisticated space heaters have sensors that will stop heating once a room reaches the required temperature. You can even get space heaters that have timers so that you can control when the heating starts and finishes.
Modern space heaters are usually very reliable and will rarely break down. If they do go wrong, then they are usually easy to fix. If all else fails, you can replace a broken space heater with a new one, as they are fairly cheap to purchase.
Usually, it is easy to transfer a space heater from one room to another. Most of them are fairly lightweight, so it is just a matter of unplugging them from their current location and then moving them to the next room. You do not want to be carrying a space heater around if you have just used it and it is very hot.
There are no major installation requirements for a space heater. Unlike a central heating system, which requires a skilled engineer to install it, anyone can move a space heater into the desired location and plug it into an electrical outlet.
Small space heaters can generate a lot of heat, and this means that you do not usually need a lot of space to accommodate them. When you are not using your space heater, you can store it away easily, too.
How to use Space Heaters?
We recommend that you use a space heater if you need to provide heat to a single room or a couple of rooms. You can also use a space heater to provide temporary heat in a room that you do not use that often, such as a garage or other work area.
There may be someone in your family who feels the cold more than others, and a space heater can be a lot more efficient than cranking up the central heating. It will cost a lot more to have the central heating on full blast, and only one person will benefit while the others are sweating.
When you use a space heater to heat a commonly used room in your house, you can either turn off the central heating altogether or have it on low. Make sure that you keep any doors to the room you are heating with the space heater closed as much as possible so that heat doesn’t escape.
You must choose a space heater that can heat the room. Heating larger rooms will require large space heaters. It is common sense. If you use a space heater that is not up to the job of heating the entire room, then you are going to be dissatisfied with this.
You need to think about the best position in the room for the space heater so that the heat will reach all areas of it. Be sure to position your space heater at least a foot away from a wall. For safety reasons, do not position your space heater near curtains or other flammable materials.
If you have pets or young children in your home, then always think about their safety. Keep space heaters out of reach of kids and pets. We recommend that you have a three-foot buffer zone around your space heater so that you can prevent burns or other injuries.
Types of Space Heaters Available in the Market
We mentioned before the two main types of space heaters, which are convection and radiant. There is a third type, which is a combination space heater that uses both technologies. Let’s take a more detailed look at each type:
Convection
A convection space heater aims to heat the air in the room rather than the people and objects in it. Convection space heaters can either use an electrical element or be filled with oil or water, which heats up. When the space heater warms up, the heat will rise to the ceiling. Cooler air then falls to the floor, and warm air circulates.
Some convection space heaters have fans to assist in the circulation of the warm air. This is fine, but they can get a bit noisy. An electrical element convection heater will warm up faster, but the oil or water-filled types tend to be more efficient.
Radiant
With a radiant space heater, it is the people and objects in a room that heat rather than the air. If you are sitting within the line of sight of a radiant space heater, then you will certainly feel the heat. Radiant heaters generate heat a lot faster than convection heaters do.
The trick with radiant space heaters is to find those that have a broad range of vision so that you cover most of the room. Radiant space heaters usually cost less to run than convection space heaters. They can be a danger to people and animals, so you need to keep your distance from a radiant space heater.
Combination
As the name suggests, combination space heaters use the best aspects of both convection and radiative heaters. They will usually have fans to distribute the heat around a room and are usually a good choice for larger rooms.
Best Space Heater for Large Rooms Reviews From Amazon: Top 10
In this comprehensive review of the best space heater for large rooms, we will take a look at the 10 space heaters that we considered to be the best after all of our tests. There are a large number of space heaters available, so we had to spend a great deal of time narrowing this down to the best 10 so that you have an easier purchasing choice to make.
We took a good look at the features offered by the different space heaters. Safety is an important factor when considering the purchase of a space heater, so that was high on our list too. The price was considered as well.
1. Dr Infrared Heater Portable Space Heater Review
This powerful 1500-watt space heater efficiently warms large rooms with its dual heating system—infrared quartz tube and PTC—delivering up to 5200 BTU for 60% more heat than standard models. It features auto energy-saving mode with high and low settings, electronic thermostat (50–85°F), 12-hour auto shut-off timer, and essential safety measures like tip-over and overheat protection. The unit operates quietly at just 39 dB with a high-pressure, low-noise blower, and is conveniently equipped with an IR remote, caster wheels, a lifetime filter, and a 6-foot power cord, weighing only 24 lbs and drawing 12.5 amps.
- Good heat distribution.
- Excellent temperature control.
- Great safety features.
- Air stabilization.
- A little pricey, but you get what you pay for.
2.EdenPURE CopperSMART 1500-Watt Electric Portable Space Heater Review
The EdenPURE CopperSMART 1500-Watt Electric Portable Space Heater is another technologically advanced radiant space heater that uses copper helix far infrared quartz tubes to supply the heat. There is a layered copper helix wrap around the far-infrared tubes, and this captures and stores the heat that the infrared tubes produce.
This is an efficient use of heat and ensures that you can heat a large room to a comfortable temperature continuously while the space heater is in operation. You will use less electricity while you are heating your room as well. The space heater acts as an infrared sauna, and the heat it produces is healthy.
Because of the copper’s positive thermal coefficient, this space heater produces penetrating heat, which will not reduce the oxygen or humidity levels. This means that the air in your room will not feel dry as it can with other space heaters. With the technology in this heater, you get diffused heat from floor to ceiling and from one wall to another.
EdenPURE claims that this space heater has a life expectancy of 80,000 operational hours. You get 24 preset temperature controls, and you can adjust the temperature range from 40 to 90 degrees Fahrenheit. There are two heat settings. The unit also has a sensor for tipping over the unit and a dual sensor for high limits.
The EdenPURE CopperSMART 1500-Watt Electric Portable Heater has a 1500-watt output and a 5,000 BTU output. The built-in safety features ensure that the space heater is safe to touch when in use, so your kids and pets will be safe. There is also a remote control provided with this heater for added convenience. This is an ETL-listed product.
This is a lightweight radiant heater that you can easily transfer from one room to another. The space heater measures 17 inches by 13 inches by 16 inches and only weighs around 24 pounds. The panel on the front of the heater is easy to use to change from high to low heat or vice versa and control the overall heat output.
- Efficient heating technology saves electricity.
- Good safety features.
- Easy to operate.
- The remote control is useful.
- ETL listed.
- Some heat output issues.
3.AirNmore Comfort Deluxe with Copper PTC, Infrared Space Heater Review
The AirNmore Comfort Deluxe with Copper PTC, Infrared Space Heater does not use infrared bulbs or tubes but deploys the latest copper positive thermal coefficient technology to supply heat. This means there are no bulbs to replace with this efficient space heater. With this technology, there is no reduction of humidity or oxygen levels in your rooms.
This space heater has a high-velocity fan that has two speeds to circulate the heat more efficiently. The powerful radiant heater has two heat settings at 1,000 watts and 1,500 watts. The maximum heat output is 5,000 BTU. AirNmore claims that this space heater will provide sufficient heat for a room as large as 1,000 square feet.
There are many built-in safety features, and the space heater is cool to the touch when it is working. It has tip-over protection, which you would expect from a heater of this quality. Your children and pets will be safe around this heater. You can easily move this space heater around thanks to the built-in high-quality casters. The heavy-duty power cord is 5 feet long.
The AirNmore Comfort Deluxe with Copper PTC has a heavy-duty filter that will capture particles, including dust, to avoid contamination of the heater. This space heater has an ETL listing, and there is a useful remote control supplied. This space heater weighs around 26 pounds and measures 16.5 inches by 13 inches by 16.8 inches.
- Good safety features.
- Very durable space heater.
- ETL listed.
- No infrared bulbs or tubes.
- Not the most powerful heater.
- It can be pricey.
4. Dr. Infrared Heater Portable Space Heater Review
The Dr. Infrared Heater Portable Space Heater has an advanced heating system comprising a quartz infrared element and a positive thermal coefficient delivering efficient heating for your rooms. This space heater also has a high-velocity blower, which is quiet during operation and helps to distribute the heat to all areas of your room.
This space heater has an electronic thermostat, and you can adjust the temperature from 50 to 86 degrees Fahrenheit. There are two heating positions, low and high, which deliver 1,000 watts and 1,500 watts, respectively. The manufacturers claim that this space heater outputs 60% more heat than others, but we could not verify this.
You can control the settings of the Dr. Infrared Heater Portable Space Heater through the panel at the front of the space heater or use the handy remote control. There is a 12-hour shutoff timer, and you can finely adjust the temperature or use the high/low setting or the automatic setting.
This space heater is UL-listed and has some good safety features, such as a tip-over cut-off switch. The power cord is 6 feet long, and the space heater has casters for easy movement. The unit is fairly lightweight at 24 pounds, and it is a compact heater measuring 13 inches by 11 inches by 16 inches.
- Fast heat output.
- Reasonably priced.
- Safety features OK.
- UL listed.
- Some customers reported reliability issues.
5. Lasko 6405 Designer Oscillating Space Heater Review
The Lasko 6405 Designer Oscillating Heater is not a radiant heater and uses a ceramic element to provide heat. The ceramic element self-regulates to improve the safety of the space heater. This is a powerful oscillating heater with a maximum output of 1500 watts, which will heat most large rooms effectively.
If you are looking for something different, rather than the standard box design space heater, then this is it. It has an elegant tower design that will look good in most rooms. You get full thermostat control settings, and you can choose between high power and low power. The oscillation provides good heat coverage. This product is ETL-listed.
There is a 7-hour timer with the Lasko 6405 Designer Oscillating Heater, and the maximum heat output is more than 5,100 BTU. It has a built-in automatic overheat protection feature for added safety.
The exterior of this space heater is cool to the touch, but it does not have some of the safety features that more expensive models have.
It is easy to use this oscillating space heater straight out of the box. This space heater is surprisingly lightweight at just 6.5 pounds. The dimensions are 7.2 inches by 7.2 inches by 16.1 inches. You can move this heater from room to room very easily. You can normally get this oscillating heater at a low price, too.
- Good price.
- Good heat output.
- Easy-to-use controls.
- ETL listing.
- Cools down fast on power off.
- Not very durable.
6. Trustech Portable Space Heater, 1500W Electric Space Heater Review
The Trustech Portable Space Heater, 1500W Electric Heater is a radiant heater with 3 bulbs, and Trustech seems to hide this fact in their product description, which is a bit strange. It is an affordable and efficient heater for large rooms, and pretty popular with customers, probably because of the fairly low price.
There are three heat modes with this space heater, and these will change the airflow speed of the fan. There are high and low heat modes that operate at 700 watts and 1,500 watts, respectively, and there is also an Eco mode, which turns on and off with the temperature of the room to ensure consistent warmth.
There is an LED display that is clear and easy to read, and you can control this space heater using the buttons on the front panel or by using the convenient remote control. The thermostat is easy to control, and you can set a room temperature that is right for you. It also includes a timer that will work from 0 to 12 hours.
For safety, there is a tip-over cut-off switch and also an overheating cutoff. This space heater is light and weighs just under 12 pounds. It is fairly compact too, with dimensions of 13.3 inches by 7.4 inches by 12.1 inches.
- Affordable radiant heater.
- Good heat output.
- Lightweight and compact.
- Remote control.
- Not as efficient as other radiant heaters.
- Some quality issues reported by customers
7.LifeSmart 6 Element Quartz Large Room Infrared Space Heater Review
The LifeSmart 6 Element Quartz Large Room Infrared Heater is a mid-range priced radiant heater with some good features. The radiant heat is provided by six high-quality wrapped infrared heating elements that will heat up fast. LifeSmart claims that this space heater can efficiently heat a 1,400 square foot room, but we could not verify this.
This radiant heater has a maximum of 1,500 watts and 5,100 BTU output. You can choose between three heat settings, which are low, high, and Eco. There are controls on the front panel of the space heater, or you can use the remote control supplied. There is a timer programmable from 0 to 12 hours as well.
There will not be any reduction of oxygen or humidity levels in your room with this heater. This product comes with a 6-foot-long power cord, and it is larger than some of the other radiant space heaters, with dimensions of 16 inches by 13 inches by 16.5 inches. It weighs around 24 pounds.
- Mid-range priced radiant heater.
- Good heat power.
- 3 heat modes.
- Remote control.
- Not many safety features.
- Some reliability issues.
8.DeLonghi HMP1500 Mica Panel Space Heater Review
The DeLonghi HMP1500 Mica Panel Heater will provide 1,500 watts of power to heat your room. It uses mica thermic technology to generate heat, and this means that the space heater is silent in operation. There is no fan included with this heater.
DeLonghi is a well-known name in household appliances, and this is a quality space heater.
You can use either the low heat setting at 750 watts or the high heat setting at 1,500 watts. At the high heat setting the space, the space heater can output 5,120 BTU. The heater will easily heat a 300 square foot room efficiently, but for larger rooms, its ability to heat effectively comes into question. It has some safety features such as a tip-over switch and thermal cut-off.
The thermostat is adjustable, and the space heater is easy to use. You can place this heater almost anywhere and even mount it on a wall if you want to. It looks good and will blend in well with almost any decor. The heater weighs less than 16 pounds, and it measures 27 inches by 10 inches by 22 inches.
- Reasonably priced space heater.
- Good company reputation.
- Easy to use.
- Lightweight and wall-mounted.
- Some reliability problems.
- Will not heat larger rooms well
9.DeLonghi EW7707CM Safe Heat 1500W Oil-Filled Radiator Review
The DeLonghi EW7707CM Safe Heat 1500W Oil-Filled Radiator is a silent operation space heater that is available at a good price. The heater is powerful with a 1,500-watt output, and it has a ComforTemp button that maintains the optimal temperature of your room while helping you to save money on your energy bill.
There are three heat settings with this space heater as well as an adjustable thermostat. The heater has thermal slots that provide maximum heat flow while maintaining a low temperature on the surface. This heater is well made, and the oil reservoir is sealed, so there is no requirement for refilling.
Being an oil-based space heater, it can take a while to heat up. This heater has some good safety features, such as a thermal cut-off and an anti-freezing system so that the pipes never become frozen. It weighs around 25 pounds and has dimensions of 5.9 inches by 13.8 inches by 24.9 inches.
- Well priced.
- Easy to use.
- Good heating power.
- No assembly is required.
- Durability issues reported.
- It takes a while to heat up.
The Best Brands of Space Heaters for Large Rooms
In truth, no one brand emerges as a clear winner when it comes to space heaters. The DeLonghi brand has a good reputation for household appliances, but the two space heaters from them that featured in our top 10 were not as good as we thought they would be. The customers didn’t think so either.
Some of the lesser-known brands, such as
Unique Heat,
EdenPURE and
AirNmore is certainly worthy of consideration, as their space heaters have a lot of good features. Customers liked these brands, and time will tell if they will maintain their standing in the market.
How to choose the Best Space Heater for Large Rooms: Buying Guide
The first thing to consider when purchasing a space heater is the type. Convection space heaters will heat the air in a room, but they tend to dry out the air, which can get pretty uncomfortable. Radiant heaters will heat people and objects in their line of sight and are more efficient, usually saving on electricity costs.
A radiant heater with fan assistance helps to spread the heat around the room more efficiently. There are also space heaters that use mica technology, and these will heat a room quickly and distribute the heat well.
The next thing to consider is the size of the room that you want to heat. Large rooms will require a heat output of 1,500 watts to make them comfortable. Some space heaters are better at heating large rooms than others. A radiant heater with fan assistance can do a very good job, as can a powerful convection space heater.
A radiant heater is usually more energy-efficient than a convection heater. This is not always the case, so you need to do your homework here. If you use a space heater for many hours, then your electrical bill is going to go up. If the space heater is more efficient, it won’t go up too much.
Safety is very important with space heaters. Some of them can get very hot and cause burns to young children and pets, so check what safety features are included. A tip-over cut-off and an overheating protector are worth looking out for.
There are some silent space heaters, but most of them will make some kind of noise. This may not be a big issue if you are using the heater in the living room, but in the bedroom, it is very important. Check the noise output of any space heater you are considering.
Frequently Asked Questions for Best Space Heater for Large Rooms: FAQ
Q.1 How many space heaters can I run?
You can run any number of space heaters in your home, but you need to check the loading on your electrical supply.
Q2. Can space heaters cause sickness?
Sometimes germs can spread with the use of space heaters. Look for models that have germ prevention features.
Q3. Can space heaters run all night?
In theory, yes, they can, but we wouldn’t recommend it. A lot of timers on space heaters have a 12-hour maximum, and we would not suggest exceeding this.
Q4. How big a space heater do I need?
This is dependent on the size of the room that you want to heat. This review is about finding a good space heater for large rooms, so we would recommend the more powerful 1,500-watt models.
Q5. What space heaters are the most energy-efficient?
Usually, radiative space heaters are the most energy-efficient.
Q6. Can space heaters be used outdoors?
Yes, you can use radiant space heaters outdoors. Just point them at what you want to provide heat to.
Final Words for the Best Space Heater for Large Rooms
We sincerely hope that you found this to be one of the best space heaters for large room reviews that you have ever read. Unlike other best space heater reviews, we wanted to bring you all of the important information that you need to ensure that you purchased the best space heater for your needs.
We believe that the Unique Heat Infrared Home & Office Whole Room Space Heater is the best out there because of its incredible heating power, a vast array of features, and a particular safety concern. The EdenPURE CopperSMART 1500-Watt Electric Portable Heater and the AirNmore Comfort Deluxe with Copper PTC, Infrared Space Heater are also good.
You need to decide how much you are willing to spend on your space heater. In general, the more you are prepared to pay, the better quality the space heater will be. If you are on a budget, then the Lasko 6405 Designer Oscillating Heater is a pretty good option.
We wish you well in purchasing your new space heater, and thank you for reading one of the best space heaters for large rooms reviews.