Top 6 Best 1500 Watt Space Heater (Reviews & Guide 2021)

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Best 1500 Watt Space Heater Being Used on the Floor

When shopping for a space heater, it is always important to consider the size of your room. It’s what determines the BTUs (amount of heat the electric heater needs to produce to keep the room warm).

Instead of turning on the thermostat of your central heating system, you can choose a 1500 watt heater. These are portable, energy-efficient and a favorite choice for heating a small interior.

The best 1500 watt space heater uses 120v and produces 5,100 BTUs of heat, which is enough to heat rooms up to 150 square feet. However, some are powerful enough to heat rooms between 500 to 1000 square feet.

So, if your room is about 500 square feet, we have reviewed some of the best 1500 watt heaters that will keep your room warm during the cold winter.

6 Best 1500 Watt Heater Reviews And Buying Guide

Last update on 2021-04-16 / Affiliate links / Images from Amazon Product Advertising API

1. Dr. Infrared Heater 1500-Watt Portable Space Heater

Dr Infrared Heater Portable Space Heater,...
  • Can heat up a large room with Auto Energy Saving Model With High and Low Feature. Tip-over protection and Overheat protection
  • Dual Heating Systems featuring infrared quartz tube + PTC with 12hr automatic shut-off timer
  • IR Remote Control, High Pressure Low Noise Blower with Noise level 39 dB super quiet. Heating can cover for a large room.
  • Electronic Thermostat: range 50 to 85 degrees. Caster Wheels and lifetme filter
  • Weights 24 lbs and uses 12.5 Amps of Power. 1500 Watts.Electric Cord 72 inch long
  • Voltage: 120 Volts
  • Power source type: Corded Electric

Last update on 2021-04-15 / Affiliate links / Images from Amazon Product Advertising API

The Dr. Infrared portable space heater is a popular space heater with unique qualities. First off, it delivers more heat for every watt of electricity consumed. While similarly-sized heaters only give you 155⁰F, the Dr. Infrared delivers 250⁰F. Not to mention, the heat is also delivered faster, at 3.5m/s whereas competing heaters only deliver heat at 2.2m/s. In the end, you get approximately 60% more heat in your room!

Some of the Dr. Infrared’s top features include a dual-heating system that delivers not only faster but more heat per unit time. The heater also boasts a high-velocity, low-noise blowing system that helps to circulate heat within the room faster and more evenly.

In addition, the 1500w heater is protected by cool-to-touch exterior as well as anti-tip-over and automatic overheat shutoff. It has an adjustable thermostat with an auto saving mode and two manual heat settings – Low (1,000 watts) and High (1,500 watts).

The radiant heater weighs 24lbs and is ideal for spaces up to 1,000 square feet. Also, it comes with a 27-inch electric cord that is UL Listed for safety.


  • Gentle radiant heat
  • Electronic adjustable thermostat
  • IR remote control
  • High-velocity, low-noise blower system


  • It’s a bit heavy for a portable heater
  • The cord is rather short

2. Lasko 754200 Ceramic Portable Space Heater

Portable Electric Space Heater with Thermostat,...
  • 2 in 1 heater fan: This ceramic heater provides two heat levels, 1500W or 750W and one cool air fan, you can use it both for winter and summer. Thermostat control of the heater will turn the heater off when it reaches a preset temperature and turn the heater back on when the temperature dips below the thermostat setting. It will cycle on and off. Adjust the setting of thermostat from 0℉ to 158℉ to keep room comfortable
  • Multi protection safety system: These heaters are made of flame retardant material avoiding any fire hazard. Automatic safety shutoff system will shut the heater off when the heater overheat. The tip over protection system will also shut the heater off when the heater was knocked over by accident and it will come back on automatically if it is up righted
  • Compact and powerful: 8.3 inch x 6.3 inch x 4 inch, 2.2 pounds Portable mini heater with build in carry handle helps to reinforce the potential of rather low electrical bills by using at the place where you need when you don't want to warm the full house with other centralized heaters
  • Quiet and fast heating: The noise this ceramic heater makes is lower than 45 decibels, quiet enough for most people to use in a bedroom while sleeping. With PTC ceramic heating tech and high speed fan, this heater put out tons of heat to heat up 200 square feet in seconds
  • Upgrade abs material: Upgrade abs material applied, which is more flame resident. The room heater with six feet lead cord and 2 prong connection has a long lasting life

Last update on 2021-04-16 / Affiliate links / Images from Amazon Product Advertising API

The most affordable product on this list, the Lasko Model 754200 is another wonderful product when shopping for a 1500-watt heater. The first thing you need to know, however, is that unlike most of the other products on this list, the Lasko 754200 is a ceramic heater, not an infrared heater. The ceramic heating element is very effective as it generates lots of heat energy without making noise.

What’s more, the heater has three heat settings (Low, High, and Fan-Only). Beyond the three settings, you get to enjoy the convenience of an adjustable thermostat for fine-tuning the climate inside your room to the most comfortable level. Plus, it’s carry handle makes moving the unit from room to room effortless.

Other features of the Model 754200 include overheat protection, a cool-to-touch exterior, and anti-tip-over protection. It’s one one of the safest bathroom heaters. Moreover, the unit comes fully pre-assembled.


  • Built-in carry handle
  • ETL Listed
  • Built-in safety measure
  • Fast, gentle, ceramic heating


  • Manual controls
  • Only effective over 300 sq. ft.

3. Lifesmart Corp Lifelux Series Ultimate 8-Element Infrared Heater

Lifesmart Corp Lifelux Series Ultimate 8 Element...
  • Eight wrapped infrared quartz heating elements
  • Three heat settings: 750w/1,500w/ and ECO maintains a constant 68º
  • Overheat safety switch
  • 12 hour programmable timer
  • Extra large LED display

Last update on 2021-04-16 / Affiliate links / Images from Amazon Product Advertising API

The Lifesmart Corp Lifelux Series Ultimate 8-Element is a Quackerstown oak stain all wood cabinet housing an infrared heater. Life Lux lists it as one of their top of the line heaters, and it truly is unique. The quartz heater’s heating elements are wrapped in a metal heat exchanger coil, ensuring optimum heat production while maintaining maximum safety.

There are a few special features to keep an eye out for here. For example, the Lifesmart has three energy saving settings, including an Eco Setting that heats smaller spaces at 68⁰C using balanced heat energy for maximum efficiency. Also, the heater features a removable and cleanable Lifetime Air Filter and a new, larger remote control device from which you can control the digital thermostat and dual timer.

The heater packs multiple safety features and is ideal for spaces up to 1,800 square feet – the highest on this list. In addition, it is ETL Listed and comes with a one-year warranty.


  • Comes in a stylish oak cabinet
  • Digital thermostat with remote control
  • Three heat settings
  • Heats up to 1800 square feet


  • Costs a pretty penny
  • No remote control

4. Amazon Basics Portable Space Heater 1500 Watts

Amazon Basics Portable Eco-Smart Space Heater -...
  • Classic black portable space heater with adjustable electronic thermostat and easy-to-read LED display (measures 14.5 x 11.4 x 14.7 inches; weighs 14.6 pounds)
  • Includes over-heat sensor for safety
  • Adjustable temperature setting from : 65- 85 ℉
  • Four infrared heating elements with 750W and 1500W power settings as well as ECO-Smart setting for energy savings
  • Includes remote control (batteries not included)
  • Can heat rooms up to 1000 sq ft (standard 9 foot ceiling height)
  • Backed by Amazon Basics 1-year limited warranty

Last update on 2021-04-16 / Affiliate links / Images from Amazon Product Advertising API

The moderately priced classic Amazon Basics portable heater is also a great 1500 watt electric heater worth exploring. Ideal for homes and offices, the powerful heater generates gentle warmth and quickly disperses it throughout the room without making any noises.

It is a radiant heater that uses a quartz tube and Positive Temperature Co-efficient (PTC) to generate heat. Not only that, the heater has two settings; Low (750 watts) and High (1500 watts). An LED light indicates which of the two settings is on. Even better, the Amazon heater has an Eco-Smart setting that automatically cycles between wattages to maintain set temperatures while minimizing power usage.

Moreover, the heater is ideal for spaces up to 1,000 square feet, is ETL Listed, and comes with an Amazon Basics one-year limited warranty.


  • Remote control
  • 18-hour timer
  • Multiple safety features
  • Ideal for up to 1,000 sq. ft


  • Remote device batteries not included

5. Unique Heat Next Generation Infrared Whole Room Space Heater

Unique Heat 1500-Watt PTC Personal Home & Office...
  • INFRARED HEAT – Unlike conventional heaters, which raises the temperature of the air in a room, infrared heaters warms you and other objects directly. The infrared heater unit is cool to the touch because it does not burn the air like conventional space heaters which use combustible heating techniques
  • SAFE & QUIET – The Unique Heat Infrared Room Heater provides a safe, burn resistant warmth without the fire risk of traditional space heaters. The unit has an auto tip over sensor, which turns the space heater off when it tips over. Our infrared room heater is also extremely quiet, making it perfect for bedrooms and offices
  • DISPLAY SETTINGS – Equipped with 3 temperature setting scales; 1-20, Fahrenheit and Celsius. To change between scales, hold down the QUIET button of 3 seconds until it beeps or the display flashes, then release the QUIET button. Review manual for additional details
  • SPECIFICATIONS – The 1500-watt Space Heater covers up to 800 square feet and has a heat output of 5200 BTU. The thermostat range is 60 to 90 degree Fahrenheit and has a working life of 40,000 hours. The electric cord measures 6 feet and fits 3 prong outlets. Do not plug the space heater into an extension cord
  • HELPFUL INFORMATION – For best results, do not place the heater in an area with a high rate of air filtration and movement as the warm air will be exhausted. The infrared space heater will work best in well-insulated rooms & is not meant to replace your central heating system. Try placing the space heater near a warmer inside wall and direct the output toward a cooler outside wall. Do not plug the heater on the same circuit as the major appliances. REVIEW MANUAL FOR ADDITIONAL TIPS

Last update on 2021-04-16 / Affiliate links / Images from Amazon Product Advertising API

Yet another infrared heater, the Unique Heat Next Gen heater is a safe, quiet, and cool-to-the-touch heater that heats up in a flash. The unit has three temperature settings and allows you to choose your preferred settings in either Celsius or Fahrenheit. An LED light indicates which of the heat settings is on.

Anti-tip-over protection and automatic overheat shutoff highlight the safety features. And air sanitizers also help with removal of harmful microorganisms from the air introduced into your rooms. The lifetime air filters mean you don’t need to worry about buying new filters. It comes with wheels for moving it around and it’s extremely quiet when operating.

Additionally, the Unique Heat is ideal for spaces between 800 and 1,000 square feet, weighs 15lbs, and comes with a 6-foot electric cord. It can be the best heater for very large basements.


  • Lifetime air filters
  • Three temperature settings
  • LED control displays
  • Comes with a six-foot cord


  • It doesn’t come cheap

6. EdenPURE CopperSMART 1000 Electric Portable Heater

EdenPURE CopperSMART No Bulbs to have to Replace...
  • Dual High Limit Sensors. Touch Safe Front Grill Cover ETL Approved, Tip-Over Sensor
  • Copper PTC with Auto Reboot Feature to recover from Power Outages
  • Temperature Range: 40 F to 90 F -Copper PTC Heating Element. Two power settings: 1,500 Watts High/ 1,000 Watts Low
  • Remote Control and lifetime filter Included. Wheels on unit to easily on move from room to room.
  • Full 1 Year Manufacturer Warranty

Last update on 2021-04-16 / Affiliate links / Images from Amazon Product Advertising API

The EdenPURE CopperSmart is one of the best 1500-watt space heaters you can lay your hands on at the moment, and that’s no exaggeration. The portable zone-heater has a PTC heating element at its core. PTC elements are designed for many years of durable use. Better still, the heater has more than 4.5 square feet of copper surface area – one of the highest in its category.

There being no exposed heating elements, the CopperSmart 1000 is an inherently safe heater. It gets better; the PTC element never gets hotter than the set temperature! Indeed, this is a safety feature unmatched by any other radiant heater manufacturer. The heater is also equipped with a dual high limit sensor for enhanced safety.

What’s more, the Copper Smart 1000 has 24 heat settings, includes a remote control, has lifetime filters, and comes with a one-year manufacturer’s warranty.


  • Copper PTC with Auto Reboot
  • Remote control
  • Lifetime filter
  • One-year warranty
  • Dual high-limit sensors


  • Most expensive product on this list
  • Weighs a massive 23.5Lbs

Best 1500 Watt Heater Buying Guide

A 1500-watt heater generates 5,100 British Thermal Units (BTU) of heat. When sizing a heater, the rule of thumb is to allocate 10 watts of heat to every square foot. One (1) watt is equivalent to 3.41 BTU. A 1500-watt (about 5,115 BTU) heater, therefore, would be ideal for a 1500/10 = 150 square-foot-room.

A 1500-watt rating means that the heater generates 1500 watts of heat when operating at full throttle. Most medium-sized and large room heaters have two or more heat settings. The three most common settings are Low, Medium, and High. If shopping for a 1500-watt heater, ensure that the 1500 watts is the maximum possible heat production rate.

Even more importantly, check the label to verify this fact. All space heaters have a label with product details. Check to verify that the heater has a 1500-watt Max Output. If you can’t find the wattage rating, ask the sales rep or move on to the next product. You don’t want to take home a heater that may be too large for your application as it creates an unnecessary cost burden and safety risk.

Calculating a Heater’s Power Consumption Rate

Before we discuss the calculation process, it’s important to understand that heaters have two wattage values. The first one is the power consumption rating and the other is the heating capacity. The value you’ll see is the heat output, not the power consumption. As such, a 1500-watt rating means the heater produces 1500 watts of heat.

You may, however, also want to find out the power consumption rate of your heater so as to find out how much electricity you’ll be using and how much the heating process will cost you. You’ll likely find this value at the bottom of the unit under the electrical ratings section. Alternatively, use the voltage and amperage values to calculate the power consumption rate using the formula:

Wattage = Volts x Amps x Power Factor. The Power Factor is usually one (1).

For a 115-Volt, 10Amp heater, therefore, the power consumption rate would be 1,150 watts. Most 1500-watt heaters are rated 120-Volt, 12.5Amp.

How Much Space Does a 1500 Watt Heater Heat Up?

A 1500-watt heater generates 5,100 British Thermal Units (BTU) of heat. When sizing a heater, the rule of thumb is to allocate 10 watts of heat to every square foot. One (1) watt is equivalent to 3.41 BTU. A 1500-watt (about 5,115 BTU) heater, therefore, would be ideal for a 1500/10 = 150 square-foot-room.

There are a few things to keep in mind, however. First, the formula above assumes that all rooms have a standard ceiling height (of 8 feet). But, what if the ceiling in your home is higher or lower? You would need to adjust the heating requirements accordingly.

Secondly, how many people will be occupying the room at any given time? A 1500-watt heater will only be effective in a 150 sq. ft. space if the room is primarily occupied by one person. If you regularly have two or more people in the room at any given time, you may need more heating power.

Finally, insulation is another critical factor. A newer room with excellent insulation would retain most of the heat meaning the 1500-watt space heater would work well even a 300 sq. ft. space. But, in older homes with average to poor insulation, things get a little complicated.

The consistent loss of heat means you’d need to generate more heat to maintain the desired indoor temperatures. A 150 square-foot room might therefore need a much larger heater, possibly up to 3,000 watts. In that case, a 1500-watt heater might only suffice a 100 sq. ft. or less.

How Much Does it Cost to Run My Heater?

The cost of running an electrical appliance depends on the cost of electricity in your area. In Australia, consumers are currently paying between 25 cents and 40 cents per kilowatt-hour depending on location and the electricity provider.
The cost of heating is calculated as follows;

Total Cost = Heater Power Rating in Kilowatts x Cost of Electricity.

This means that for a 1500-watt (1.5killowatts), you can expect to pay between 1.5 x 25 cents to 1.4 x 40 cents per hour. This comes to 37.5 to 60 cents/hour whenever the heater is running. Operating a 1500 watt heater for 24 hours would therefore cost you between 900 and 1440 cents or $9-14.4.

Other Considerations When Buying 1500 Watt Heater

As you plan for your purchase, remember that wattage isn’t the only thing you should be looking for. In addition to the 1500 watts, you need to consider other factors such as the heater’s;

  • Working mechanism
  • Safety features
  • Portability
  • Programmable thermostat
  • Aesthetics

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Best Propane Wall Heaters with Thermostat and Blower 

Best Heater and Cooling Fan Combo


A 1500-watt heater would be a valuable investment when looking for a space heater for small to medium-sized rooms. They generate enough power to warm up to 150 square feet (12 x 12.5 rooms) and typically comes with multiple controls and safety features for optimal convenience.

Remember, however, that the age of your home, the expected number of regular room occupants, and insulation greatly impact the effectiveness of the heater.