Guide to Right Size Fan Heater: Choose Perfectly.

Choosing the right size fan heater for your space is crucial for maximizing its efficiency and keeping your home comfortable. In this guide, we’ll explore the factors that come into play when selecting the appropriate size of a fan heater.

The size of a fan heater is an essential aspect to consider when selecting a heater that matches the size of your space. Heating an area that is too large or small can be less efficient or overload your fan heater, resulting in overheating or ineffective warming.

A fan heater that is too small will struggle to warm larger spaces, and a heater that is too big will waste energy. In this guide, we will discuss how to figure out the best size fan heater for your space and the critical points to keep in mind along the way.

Understanding Fan Heaters

Fan heaters are popular household devices that are designed to help you regulate the temperature in your home. They work by using an electrically powered fan to blow hot air through their heating elements, which then warms the surrounding air.

Fan heaters are an efficient and cost-effective way to heat your home without having to rely on central heating systems. In this section, we will be discussing the definition and types of fan heaters, as well as their advantages.

Definition And Types

A fan heater is a type of space heater that uses a fan to blow air over a heating element. This type of heater is available in various shapes and sizes, each with its unique features, including:

  • Convection fan heaters: These types of fan heaters work by drawing cold air over a heating element, which then rises and circulates throughout the room, creating a warm and cozy environment.
  • Radiant fan heaters: These fan heaters use a heating element to create infrared radiation, which then travels through the air and warms up the objects in its path. This type of fan heater is ideal for heating up small rooms quickly.

Advantages Of Choosing A Fan Heater

There are many reasons why you would choose a fan heater over other types of heaters. Here are some of the key benefits:

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  • Fan heaters are extremely energy-efficient and cost-effective, which means that you’ll save money on your energy bills throughout the winter months.
  • They are also quick and easy to heat up, which means that you can warm up a room in just a few minutes, rather than having to wait for a whole system to heat up.
  • Fan heaters are portable, which means that you can easily move them from room to room.
  • They are also lightweight and compact, which makes them easy to store when not in use.
  • Fan heaters come with safety features like automatic shut-off mechanisms, which means that you can use them with peace of mind knowing that they won’t overheat.

A fan heater is an excellent investment for anyone looking for a cost-effective, energy-efficient, and easy-to-use heating solution for their home. With various types of fan heaters available in the market, you’re sure to find one that meets your needs.

Things To Consider When Choosing The Right Size

Size Of The Room

Choosing the right size fan heater can be a bit challenging, but one essential factor to consider is the size of the room. The following are tips to guide you in choosing the correct size of the fan heater that will keep your room warm and cozy:

  • Measure the length, breadth and height of the room. These measurements will help you calculate the volume of the room in cubic meters or feet.
  • Check the product packaging or website of the heater to know the suitable heater size for the volume of your room.
  • A general guideline is to have approximately 10 watts of heating power for every square meter or square foot of space. So, for a 20 square meter room, a 2000-watt heater is appropriate.

Insulation Of The Room

Another essential factor to consider when choosing the right size fan heater is the insulation of the room. A well-insulated room will require less heating power than a poorly insulated one. Here are a few things to consider:

  • Check for air leaks in the room, these could be windows, doors or vents. You can use sealant or weather-stripping materials to seal gaps that may cause drafts.
  • Insulate the walls and ceiling of the room appropriately, which prevents the heat from escaping.
  • Check the u-value or r-value of the walls and windows in the room. This value will help you identify how well insulated the room is.
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Wattage Considerations

Wattage considerations are also essential when choosing the right size fan heater. Wattage determines how much electricity the heater needs to generate heat. The higher the wattage, the more heat your heater will generate. Consider the following:

  • Small heaters generally use 600-1500 watts.
  • Medium size heaters typically use 1500-2000 watts.
  • Large heaters can use anything above 2000 watts.

Safety Features

The safety features are also an essential consideration when choosing the right size fan heater. Safety is paramount when it comes to using heaters. Always consider these features:

  • Lookout for heaters that switch off automatically when they overheat, which can prevent fires.
  • Consider a heater that switches off when it gets knocked over, preventing accidents.
  • Choose a fan heater with a tip-over switch, which is reliant on the unit’s ability to detect the way it falls.
  • The heater should have a cool-to-touch feature, which prevents accidental burns and makes it safe for children and pets.

By sticking to these considerations, you will now be able to choose a fan heater that’s the right size for your room and most importantly, safe for use.

Choosing The Perfect Fan Heater Based On Your Room’S Size

Are you tired of shivering in your room during the winters? A fan heater can be a lifesaver in those wintry months. However, choosing the right-size fan heater is crucial for a comfortable and warm atmosphere in your home. In this section, we’ll guide you through the process of choosing a perfect fan heater based on your room’s size.

Small Room

If your room is smaller than 100 square feet, you’ll require a heater with low wattage, around 1,500 watts. Here are some key points to consider before purchasing a fan heater for a small room:

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  • The heater should be compact and portable
  • A fan heater with a thermostat can help maintain the temperature
  • A safety switch to prevent overheating is essential

Medium Room

For a medium-sized room that ranges between 100 to 300 square feet, you’ll need a fan heater with a higher wattage, usually between 1,500 to 2,500 watts. Here are some features you should look for:

  • The heater should come with a built-in fan for even heat distribution
  • An adjustable thermostat for temperature control
  • A noise-free fan heater if you don’t want any buzzing sounds while it’s running
  • Auto shut-off feature to prevent overheating

Large Room

For larger rooms, you’ll need a fan heater with higher wattage, usually between 2,500 to 4,000 watts. Here are some features you should consider:

  • The fan heater should have an oscillation feature to distribute heat evenly around the room
  • A fan heater with a timer will help you set the heating program according to your daily routine
  • It should come with safety features like automatic shut-off and overheat protection

Choosing the right-size fan heater for your room is essential for a comfortable, warm atmosphere. Keep in mind the size of your room, the wattage of the fan heater, and the features that are suitable for your specific needs. By following these guidelines, you’ll be able to select a perfect fan heater for your home that will keep you warm and cozy all winter long!


Based on the factors we have discussed, it is clear that choosing the right size fan heater for your space is crucial for your comfort and safety. Before making your purchase, consider the size of the room, the power source, and the features that matter most to you.

Be sure to measure the dimensions of your space to ensure the heater you choose can adequately heat it. Also, pay attention to the heater’s safety features like overheat protection and tip-over shut off. By prioritizing these factors, you’ll be able to confidently select a well-suited heater that keeps you cozy all winter long.

Stay warm!


I am a mechanical engineer and love doing research on different home and outdoor heating options. When I am not working, I love spending time with my family and friends. I also enjoy blogging about my findings and helping others to find the best heating options for their needs.