7 Best Space Heater For 300 Square Feet (Reviews and Guide 2020)

Best Space Heater for 300 Square FeetWinter is here, and the best space heater for 300 square feet could be the extra boost your medium-sized room needs to remain cozy.

Generally, long-term exposure to the cold indoor environment can inflict adverse health conditions. For example, you may suffer from joint pains, dry skin, hypothermia, and even heart problems.

Thankfully, the best space heater for 300 sq. ft allows you to localize your heating.  This implies that even if you have a central heating system, you can save on energy by setting the thermostat low. Besides, these portable space heaters are also ideal for use in multiple locations such as offices and bathrooms.

However, choosing the right space heater for your room can be challenging. Luckily, this guide has all the information you need to make the best choice.

Read our picks of the best space heaters for 300 square-feet room, and some hot buying tips.

Top 7 Best Space Heater for 300 Square Feet (Reviews) 

Last update on 2020-10-20 / Affiliate links / Images from Amazon Product Advertising API

The space heater market has many models that might seem great for your room at face value.  Yet, you may end up disappointed after buying one.

Fortunately, we are here to help. Our criteria for choosing the best space heater for 300 square feet room is based on;

  1. Heating capacity
  2. Energy efficiency
  3. Noise level
  4. Safety features
  5. Size

With each review, you will learn what makes a great heater and how individual units compare. 

Without further ado, here are seven best space heaters for 300 sq. ft to use this winter.

1. ComfortZone Heat Ceramic Oscillating Space Heater – All the Smart Features

Oscillating Space Heater – Ceramic Forced Fan...
  • FAST, EFFICIENT HEATING: Our oscillating space heater uses a forced-fan circulation to heat as it rotates from side to side, quickly & evenly warming an entire room while maintaining a consistent temperature.
  • ETL CERTIFIED & BUIT TO BE SAFE: In addition to being ETL Certified, this unit includes an overheat protection sensor and an automatic fail-safe that cuts power to the unit if it's accidentally tipped over.
  • OPTIMAL COMFORT: A digital thermostat prevents overheating & stuffiness, while an 8-hour timer with auto shutoff allows you to program the unit in advance to maintain a steady comfortable temperature.
  • LOWER ENERGY COSTS: Frostbite weather shouldn’t take a bite out of your paycheck. Our energy-saving ECO mode adjusts heat output to lower costs, while its ceramic build prevents producing too much heat.
  • LIGHTWEIGHT, PORTABLE POWER: This heating appliance is easy to move from room to room or take on a road trip. A remote control enables easy adjustment, while the stay cool housing helps prevents burns.

Last update on 2020-10-20 / Affiliate links / Images from Amazon Product Advertising API

This oscillating heater is one of the most intelligent space heaters in the market. Its auto-temperature sensor can balance between room temperature and set temperature. On eco-mode, the unit stops automatically when the room temperature exceeds the set level.

Moreover, the unit comes with an LED display and remote control to adjust the temperature. Housing this impressive feature-set is a robust and beautiful ceramic casing. For operational safety, the unit automatically shuts off when it overheats or tips over.


  1. Low energy cost with auto eco-mode
  2. Auto-shut sensor for safe operation
  3. Remote control for convenience
  4. Fan circulation for even heat distribution


  1. Slightly louder than other models

With an attractive design, smart features, and built-in safety features, this model is perfect for homes with children or pets.


2. Honeywell UberHeat Ceramic Heater – The Budget-Friendly Option

Honeywell HCE200W UberHeat Ceramic Heater White...
  • ENERGY EFFICIENT HEAT: The UberHeat Ceramic Heater offers powerful, 1500 watt heat in a compact, modern design. The Low setting does not require as much electricity to operate, so it is more energy efficient and a better option for saving energy.
  • EASY TO USE: Ideal for tabletop or floor placement, this powerful heater features 2 heat settings, an adjustable thermostat, a tip over switch, cool touch housing & overheat protection.
  • INCREASE YOUR COMFORT: Using portable heaters in your home can help increase comfort & supplement home heating needs. There is a range of Honeywell heaters covering personal, ceramic, fan forced, radiant and infrared to meet all your heating needs.
  • SMART SAVINGS: Portable heaters are a smart and easy way to add warmth to any space. By turning down your whole house thermostat a few degrees and heating just the room you are in, a Honeywell heater can help you save money while providing soothing warmth
  • HONEYWELL QUALITY: Help improve heating & energy savings in your home, office or at school using a Honeywell portable heater.

Last update on 2020-10-20 / Affiliate links / Images from Amazon Product Advertising API

Many first-time shoppers put their budget before everything else. If that is you, then you will love Honeywell’s UberHeat. At a very affordable price, you will get a compact heater with a modern design and safety features.

The unit’s small size makes it adaptable. It offers two heat settings; first is 750 watts for quiet and energy-efficient operation. The second is 1500 watts for chilly winter nights. At high heat though, the unit produces white noise.

Perhaps to keep the size small and the price low, Honeywell omits a temperature display. Better still, it has safety features like an auto tip-over switch, overheat protection and cool-touch housing. This makes the UberHeat even more appealing for the price. 


  1. Compact enough for small spaces
  2. Adjustable thermostat
  3. Low operating cost
  4. Fan-forced distribution
  5. Comprehensive safety features


  1. A bit noisy on high heat setting
  2. Lacks a digital display for the set temperature

This space heater may not be your first choice if you can afford a unit like the Comfort Zone Oscillating Heater. For the price, however, few models have as much to offer as this one.


3. Andily Ceramic Space Heater – Performance in a Small Package

andily Space Heater Electric Heater for Home and...
  • SMALL HEATER MEASURES: 6.2" X 4.74" x 8.3" . Manual controls. Fully Assembled. Carrying handle for easy transport. Adjustable thermostat for comfortable warmth—ideal for home or office
  • THREE MODES HEATER WITH FAN: 1.High Heat (1500-watt), 2. Low Heat(750-watt ), 3. Fan Only. Power indicator light lets you know when it’s plugged in
  • CERAMIC HEATER ELEMENTS: Ceramic space heaters are fast to heat, produce abundant heat without open coils, and are long lasting
  • SPACE HEATER WITH THERMOSTAT :The thermostat system can according to the thermostat setting let your room remain at a comfortable temperature.This heater can be used in small area (such as warming your feet),meanwhile warms up your surroundings
  • FOR SAFETY: 1.Automatic overheat system will shuts the unit off when the parts of the heater overheat. 2.TIP-OVER SWITCH will shut off unite when tipped forward or backward.3. Power indicate light can lets you know at a glance that it’s plugged in. 4.ETL certified

Last update on 2020-10-20 / Affiliate links / Images from Amazon Product Advertising API

At first glance, it is easy to dismiss this little heater as one that is meant for tiny living spaces. Despite its size, however, it packs a heavy punch. Its dual heat settings of 750 and 1500 watts can effectively heat your 300-square-feet room. The heater evenly distributes the warmth in the room with the help of the fan.

The adjustable thermostat helps you to adjust and control your room’s temperature. On top of being ETL listed, it’s cool-to-the-touch and has tip-over protection. 


  1. Compact and lightweight
  2. Decent performance
  3. Adjustable thermostat
  4. Commendable heat circulation from the fan


  1. Not suitable for damp places

The Andily Ceramic Space Heater is more than useful in small and medium-sized spaces. Even better, it provides reliable performance and safety features at an affordable price. 


4. Lasko FH500 Tower Heater – Best for the Tower Lover

Lasko FH500 Fan & Space Heater Combo Tower, 42...
  • FAN & HEATER IN ONE – Powered by a 3-speed 1500 watt ceramic heater and 4 quiet fan speeds, this oscillating tower is great for all-season indoor home use. It not only heats up a room fast to keep you warm & toasty on cold winter days & nights, but also creates excellent air circulation to help you beat the heat when it’s hot & humid outdoors.
  • BUILT IN SAFETY FEATURES – Tip-Over Safety Switch and Overheat Protection take the worry out of using this electric plug-in hybrid heater for long periods of time. The self-contained, self-regulating ceramic heating element helps keep the exterior cool to the touch. ETL Listed.
  • A REAL SPACE SAVER – Standing 42 in. tall with a small 13” x 13” footprint, the sleek, dual purpose vertical design is best for apartments with limited storage. Because it’s 2 units in 1, you can use the stand fan/heater year-round without sacrificing space, air circulation, comfort or style.
  • SLEEP LIKE A BABY – Perfectly sized to aim over a high bed to circulate the air so you can get some rest. Powerful enough to blow across the bedroom and creates just the right amount of white noise at bedside for sleeping.
  • EASY TO USE – Simple base assembly requires no tools. Easy to clean filter keeps the unit running efficiently. Lightweight and portable. Comes with built-in carry handle, optional oscillation, energy efficient adjustable digital thermostat and 8-hr programmable timer and a remote control for when you don’t feel like getting up to change the settings.
  • TRUSTED FOR GENERATIONS – Lasko has been making quality products for over 100 years. The FH500 is backed by a 3-Year limited so you can be confident it will provide comfort & relief in the living room, basement, kitchen, garage, home office, dorm or anywhere else in the house for years to come.
  • Voltage: 120 volts

Last update on 2020-10-20 / Affiliate links / Images from Amazon Product Advertising API

The Lasko FH500 is the tallest, and depending on where you place it, it can also be the most space-efficient. It will quickly warm up your room to the set temperature, and maintain it for as long as you want. 

Additionally, the FH500 includes an easy-to-navigate control panel with a matching remote control. It has three heating options to ensure that you can always set the temperature to your liking. The auto-eco mode will help you enjoy better energy efficiency. To top it off, the FH500 has a built-in cooling feature to prevent overheating.


  1. Great design
  2. Convenient control panel and remote
  3. Three heating settings
  4. Auto-eco mode for maximum energy efficiency


  1. Unusual design can make it less adaptable to tight spaces
  2. Costlier than other models

The Lasko FH500 towers above the competition in stature and features. Not only does it provide all-season comfort but it’s also tall enough to heat high bed. If you are looking for a powerful heater that can double as a design piece, look no further. 


5. Dyson Hot + Cool Jet Focus AM09 – Best Heater + Cooler Combo

Dyson Hot + Cool Jet Focus AM09 Fan Heater,...
  • Year round use: quickly heats the whole room in winter with a powerful fan to cool you in summer
  • Patented Air Multiplier technology effectively projects heating or cooling into the room quickly and evenly for a comfortable environment
  • Intelligent thermostat monitors the room to reach and maintain your selected temperature in heat mode so there is no wasted energy; Airflow at max. setting : 190 l/s Base diameter with plate : 8.1 Inch
  • Safety: this fan heater has no exposed heating elements so there is no burning smell, no fast spinning blades for small fingers and paws, and if the machine is tipped over, it will automatically shut off
  • AM09 features include the Quiet Mark accreditation, sleep timer, precise, energy efficient heating and a curved, magnetized remote to store neatly on the machine; The heating elements never exceed 200 degree C which is below the burning point of dust; Temperature settings Yes to the degree (0 to 37 degrees)
  • Amp Diameter is 5.9 inches

Last update on 2020-10-20 / Affiliate links / Images from Amazon Product Advertising API

The Dyson Jet Focus AM09 sits pretty in the high-end space heaters category. It is compact, stylish, efficient and doubles as a cooling fan making it an all-season appliance. The unit allows you to choose either a “focused” or “dispersed” airflow, as well as oscillation. You can use the heater as a personal heater, or to heat a whole room thanks to the oscillation function.

If your budget is flexible enough, this heater will give you consistent and steady heat. The exterior also remains cool to the touch while in use.

Like most, this heater comes with remote control for adjusting the temperate and timer.


  1. Striking design
  2. Both heating and cooling capabilities for year-round use
  3. Focused and dispersed airflow options
  4. Full, convenient remote-control functionality
  5. Energy efficient 
  6. Runs quietly


  1. Expensive
  2. Overly reliant on the remote

The Dyson is the most powerful, portable room heater on this list. Above all, it doubles as a cooling fan, so you’re also sorted during summer.


6. Lasko 754200 Ceramic Heater – For Reliable Focused Heating

Lasko 754200 Ceramic Heater with Adjustable...
  • Receive within 1-5 Business Days!
  • Ceramic 1500W Heater with Adjustable Thermostat, 7w x 6d x 9-1/5h, Gray
  • Item Weight: 3.7 lb

Last update on 2020-10-20 / Affiliate links / Images from Amazon Product Advertising API

The Lasko 754200 has been among the most recommended devices by critics since 2013. And today, it is still one of the cheapest and most reliable space heaters you can get. The compact heater warms up a room quicker than most heaters in its price range.

The heater produces a stream of hot air that warms the airspace more quickly. As a result, it is perfect for heating a home office or bedroom, where the desk or the bed is the primary focus.

 Most importantly, it features an overheat protection so you can use it for long periods without trouble.


  1. Affordable
  2. Reliable for space heating year after year
  3. Compact and lightweight


  1. Lacks several of the features from newer models
  2. Focused stream of heat that is not suitable for full-room heating

The 754200 has had positive reviews over the years because of its value for money. It is neither feature-packed nor attractive, but affordable and works without gimmicks.


7. Vornado VH200 – Quiet Even With A Fan

Vornado Heat EH1-0092-69 VH200 Vortex Heater
  • 3 Settings: 1500W, 1125W & 750W
  • Mechanical Thermostatic Temperature Control
  • Cool Touch Cabinet
  • High Gloss Finish
  • Safety Tip Over Switch

Last update on 2020-10-20 / Affiliate links / Images from Amazon Product Advertising API

Performance is a crucial consideration, and only a few units can outperform this heater. Do not let its small size or the bland design fool you. Simply power it on, and it will give out instant temperature increase that builds evenly.

Despite having a circulating fan, the VH200 runs quietly, emitting only a soft whir. Couple that with its compact design, you can tuck it away in a corner and enjoy a warm and toasty atmosphere.

The VH200 is also one of the safest heaters for 300 square feet that you can find at its price range. It features overheating and tip-over protection that immediately shuts it down if it falls over. Its plastic shell stays cool to the touch so you’re safe from burns.


  1. Reliable performance for the price
  2. Compact
  3. Runs quietly 
  4. Generous safety features


  1. Bland design
  2. Can be slow to heat a significantly cold space

There have been concerns with the airflow from the fan, and the time it takes to heat spaces. Regardless, if your target is to heat a 300 square-foot area, it is undoubtedly going to serve you well.


How To Select The Best Space Heater For 300 Square Feet Room

Whether you’re looking for a space heater for office or home use, you need to consider a lot of factors. So, before selecting the best space heater for 300 square room, it’s important to ask yourself some questions including;

  • Will the heater adequately heat your space?
  • How costly will it be to use?
  • Is it too noisy to run when you are working or asleep?
  • How safe is the heater?

For more clarity, here are the top factors to consider in a space heater for your 300 square-feet of coziness. 

  • Heater Type and Functionality

Different models for best Space Heater for 300 Square Feet

Generally speaking, space heaters come in different styles and shapes.  Yet, they all fall into three heating technologies:

1. Radiant 

Radiant heaters like Lasko 754200, Andily Ceramic Space Heater, and Vornado VH200 deliver quick heat; hence are more suited for small spaces. 

2. Convection 

Heaters with convection capability like the Dyson Hot + Cool Jet Focus AM09 typically offer even, whole-room heating.

3. Fan forced. 

The more traditional fan-forced heaters use an internal fan to blow air over a heating element. For this reason, they’re the noisiest amongst the three.

Needless to say, picking the right space heater type is vital for effective and long-term performance.

  • Heating Capacity 

If you are reading this guide, you have already determined the size of your target room. The space size is crucial because it directly impacts the efficiency and durability of your unit.

So How Can You Determine the Size of Your Room?

It’s always advisable to get the actual measurement of your room before buying a space heater. To measure the size of your space, simply get the length and width with a measuring tape. Then, find the product of the two measurements.

If your room is oddly shaped, say with an L-shape, divide it into definite squares and rectangles. Compute the areas of each space individually, and then sum up the results. 

To learn more about measuring your irregular shaped room, watch the video below.

The Wattage Chart

The Wattage Chart shows the relation between the size of space and a heater's wattage

Apart from the space size, the number of rooms, and ceiling height also matter in determining heating capacity. To know how many watts of electric heat you need in your room or office, multiply the area of your room by 10. Modern houses have ceilings that are higher than the 8-feet average. For every extra foot, multiply your area by the height and by a factor of 1.25.

For reliable, consistent heating of a room with average floor-to-ceiling height, a power rating of 2500 to 3500 watts is ideal. Only go lower if you are targeting a specific part of the space and would like to save on energy cost. 

  • Energy Efficiency

Like other appliances that produce heat, space heaters are significant energy consumers. To keep your electric bills down, you must choose energy-efficient space heaters. Ordinarily, space heaters currently lack the standards to show efficiency levels like the EER ratings. Still, you’ll consume less power by choosing the right heater for your needs.

Extra features like eco-mode, adjustable thermostats, and programmable timers will also drive down your energy cost.

  • Noise Level

Space heaters for 300 square feet with fans are noisy by nature

Like most electrical appliances, space heaters emit some noise during operation. However, some models produce more sound than others. If you want your room to remain as quiet as possible, consider a non-fan-forced space heater. Radiant space heaters work well as silent space heaters for bedrooms and offices.

  • Safety Features

Avoid space heater fire by getting a unit with the necessary safety features

If not monitored, space heaters can become fire hazards. So, it’s crucial to consider safety when you’re out shopping. To curb fire risks, manufactures always design heaters with safety features such as;

  • Cool-to-the-touch surfaces to avoid burns.
  • Auto timer to shut down the machine.
  • Tip-over protection to shut down the machine if it falls over.
  • Overheat protection prevents the unit from getting too hot.

Best Space Heater For 300 Square Feet Room FAQs

Buying a space heater can be a demanding process, but we hope that this guide has given you some insights. If you still need clarity, our frequently asked questions below would be helpful.

  • How much does it cost to run a space heater? 

Typically, models with the same power ratings will cost you roughly the same. 

Off-peak hours (10pm to 7am) are averaged at $17.5 cents/kWh, while peak hours (2pm-8pm) cost $30 cents/kWh. Of course, energy-saving features like the ones discussed above can be distinguishing factors.

You may also want to watch this video about more ways to save energy in your house.

  • How can you make a space heater more effective?

The effectiveness of your heater will depend on factors like the size of your space and room ventilation. If your room gets too much supply of air from outside, your heater will strain to keep it warm. 

Also, if you have a ceiling fan, its reverse feature can be a boon in the winter when combined with a space heater. When on, the fan will force the heated air around the heater upwards, equalizing the temperature around the room. Without the ceiling fan, warm air collects above the heater while cool air pools near the floor

An overhead fan can help you to get the best out of your space heater for 300 square feet

  • Where can you buy a space heater?

Space heaters are common home appliances and are thus available in most stores. This is to say; it’s important to buy from authorized dealers with direct ties to manufacturers. Granted, even the most reliable heaters can develop complications. So do not reach for your wallet until you see a manufacturer’s guarantee or warranty.

All the links in our product reviews, for instance, will lead you to legitimate sellers. You can, therefore, forget the worry of landing a dud that will be cheaper upfront, but cost you in the long run.

Wrap up

A space heater is a great way to keep your 300 square-feet room warm during the cold season. With a guide as comprehensive as this one, you will certainly find the best space heater for 300 square feet.

While all the models are good, just make sure you invest in a space heater that meets your needs.