what size electric wall heater do i need

Are you trying to figure out, “what size electric wall heater do I need?”. It can be confusing, especially when it comes to determining the right square footage. But don’t worry. We’ve got your back with our helpful guide on understanding how to choose the perfect size electric wall heater for any room. In this blog post, we’ll explore everything from calculating square footage to different types of heaters available so that you can make an informed decision about which one is best for you. So get ready – let’s take a look at sizing up your next electric wall heater.

Table of Contents:

Size Matters

When it comes to electric wall heaters, size matters. The size of the heater you choose will have a direct impact on its efficiency and performance. If you select an electric wall heater that is too small for your space, it won’t be able to adequately heat the room. On the other hand, if you choose one that is too large for your space, it may end up costing more energy bills than necessary.

Calculating Square Footage

Calculating the square footage of a room is an important step in determining what size electric wall heater you need. Knowing the exact measurements will help you choose the right model and ensure that your home stays warm and comfortable all winter long.

To calculate square footage, start by measuring each wall in the room from floor to ceiling. Multiply these numbers together to get the total area of each wall. Then add up all four walls to get your total square footage for the entire room.

a digital device hanging on the wall

For example, if one wall measures 10 feet wide by 8 feet high, then its area would be 80 square feet (10 x 8 = 80). If there are four walls with this same measurement, then your total square footage would be 320 (80 x 4 = 320).

Once you have calculated your total square footage, it’s time to determine which type of electric wall heater is best suited for your needs. Generally speaking, larger rooms require more powerful heaters than smaller ones do. To make sure you select a model that can adequately heat up your space without overworking itself or running up too large an energy bill, consult a sizing chart provided by most manufacturers or contact them directly for advice on choosing the right product for you.

Finally, keep in mind that when installing any kind of heating system into a home or office building it is always best practice to call upon professional help rather than attempting DIY installation yourself – especially when dealing with electricity.

Calculating the square footage of your space is an important first step when deciding which size electric wall heater you need. Knowing the type of heater that best suits your needs can help you make a more informed decision.

Heater Types

When it comes to heating up a room, electric wall heaters are an efficient and cost-effective solution. There are three main types of electric wall heaters: convection, radiant, and fan-forced models.

a big digital appliance on the wall

Convection heaters– It uses natural air currents to circulate warm air throughout the room. This type of heater is ideal for larger rooms as it can evenly distribute warmth across the entire space. The downside is that they take longer than other types of heaters to reach their maximum temperature.

Radiant wall heaters- It emits infrared radiation which warms objects in their path directly rather than relying on circulating warm air around the room as convection models do. These tend to be more powerful than convection models and can provide instant warmth but only in one area since they don’t spread out their output over a large area like convection units do.

Fan-forced wall heaters- It combines both radiant and convective technologies by using a fan to force heated air into the room quickly while also spreading it out evenly across the space with its built-in fins or louvres that direct airflow in different directions. They offer quick heating capabilities with even distribution making them great for smaller spaces such as bathrooms or bedrooms where you need concentrated warmth quickly without having to wait too long for your desired temperature level to be reached.

Each type of electric wall heater has its own advantages and disadvantages, so it is important to consider all factors before deciding which one will best suit your needs; such as the size of the room, budget, and speed at which you want your desired temperature level reached.

Key Takeaway: The size of electric wall heater you need depends on the size of your room, your budget and how quickly you want to heat it up. Convection models are great for larger rooms but take longer to reach maximum temperature, radiant models offer instant warmth in one area, and fan-forced units provide quick heating with even distribution.

FAQs in Relation to What Size Electric Wall Heater Do I Need

How do you size an electric wall heater?

Sizing an electric wall heater depends on the size of the room you are heating. To determine what size heater you need, measure the length and width of your room in feet and multiply them together to get the square footage. Once you have this figure, divide it by 10 to calculate how many watts of power your heater should be able to provide. For example, if your room is 12ft x 15ft (180sq ft), then a 1,800-watt heater would be suitable for that space. Make sure to check manufacturer specifications before purchasing any product as some heaters may require additional wiring or other modifications for installation.

What size room will a 2000-watt heater heat?

A 2000-watt heater is capable of heating a room up to approximately 150 square feet. This will depend on the insulation and other factors such as the size and shape of the room, but it should be able to provide enough heat for a medium-sized bedroom or living area. To ensure maximum efficiency, make sure that all windows are closed and curtains are drawn when using a 2000-watt heater.

How many 1500-watt heaters can you run on a 20-amp breaker?

The number of 1500-watt heaters that can be run on a 20-amp breaker depends on the total wattage draw of all other appliances connected to the same circuit. Generally, it is recommended not to exceed 80% of the rated amperage when calculating total load for any given circuit. Therefore, a 20 amp breaker should not be used to power more than 16 amps worth of electrical devices (16 x 1,500 watts = 24,000 watts). This means that you could theoretically run up to two 1500-watt heaters on a single 20-amp breaker as long as no other appliances are drawing power from this same circuit.


When it comes to finding out the answer to the question, “what size electric wall heater do I need?”, it’s important to consider both the square footage of the room and the type of heater you need. By taking into account these two factors, you can make sure that your space is heated efficiently and effectively. With a little bit of research and careful consideration, you’ll be able to find an electric wall heater that fits your needs perfectly.

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