How many square feet will a 1500 watt baseboard heater heat?

Author: Prof. Brianne Kulas PhD  |  Last update: Monday, March 31, 2025

With 144 square feet, the required wattage is 1440 watts, which means you could heat the room with a single 1500-watt baseboard heater or two 750-watt heaters.

How big of a room will a 1500 watt heater heat up?

In other words, a 1,500-watt heater will be great for a 250-square-foot room with central heat. If that same room had no other source of heat, you'd need a 2,000-watt heater.

How many watts to heat a 12x12 room?

= 1440 watts total (4913 BTU/Hr). A 12' x 12' room with an 8' ceiling would require a 1500 watt fan forced heater. The best place for installing a baseboard heater is on an outside wall under a window.

How much baseboard heat do I need per square foot?

The first and most straightforward electric baseboard heating calculator method multiplies the square footage of your room by a baseline figure of wattage to get a required heating wattage—you can generally assume a room needs 10 watts of heat per square foot.

What size baseboard heater for a 10x10 room?

Calculating the Right Size Hydronic Baseboard Heater

For example, a 10 x 10-foot bedroom is 100 square feet, (10 multiplied by 10 = 100) which requires 3,400 BTUs (100 multiplied by 34 = 3,400). You'd need 5.6 feet of baseboard heater to heat the space (3,400 divided by 600 = 5.6). That's it!

What Size Wire For A Baseboard Heater

What size baseboard heater for a 12x12 room?

For example, if you are heating a 12-foot x 12-foot bedroom, the space includes 144 square feet. Multiplying this by 10 watts shows that the necessary heater wattage for the room is 1440.

Do baseboard heaters use a lot of electricity?

If you rely mostly on electric baseboard heaters to heat your home, they probably make up a big part of your annual electricity bill – sometimes as much as 44%. However, there are plenty of ways to maximize the efficiency of your baseboard heaters to cut down your winter heating costs.

What is the rule of thumb for baseboard heating?

Myth #2: Bigger is Better.

The rule of thumb for sizing a baseboard, or any electric heater, was 10 watts per square foot. So if you have a 10 x 10 room you would need a 1,000 watt heater.

Is it expensive to run baseboard heating?

According to HomeGuide, it costs between $480 and $900 a month to warm your home with electric baseboard heat. But that will quickly increase if a faulty or poorly programmed thermostat causes your heater to turn off and on or run more often than it needs to.

What size baseboard heater for 100 sq ft?

To correctly size an electric baseboard heater for your space, you need to calculate the required wattage for the heater. A simple equation for that is multiplying the room's total square footage by 10. So, for a 100 square foot room, the baseboard heater would need 1,000 watts.

Is 1500 watts a lot for a heater?

Small personal heaters often use 750 watts, medium-sized room heaters use around 1000-1200 watts, and larger models use 1500-1800 watts. Many modern heaters also have adjustable power settings, allowing you to switch between low and high wattage for better energy management.

How long is a 1500 watt baseboard heater?

Description. Introducing the OFM1508BL OUELLET CANADA Baseboard Heater, a high-performance heating solution perfect for both residential and commercial applications. This powerful 1500W heater operates at 208V and measures 1668MM in length, providing efficient and consistent warmth to your space.

How much does a 1500 watt heater cover?

For most people, a standard space heater that covers an average room will do the job. These cover about 200 square feet and are usually around 1,500 watts. If you're looking to heat under a desk or a smaller space, a personal space heater with about 400 or 500 watts will do the job.

How much does it cost to run a 1500 watt heater for 24 hours?

Example (you can use an electric heater running cost calculator below for different wattages/kWh prices): If we assume the price of electricity is $0.1319 per kWh, a 1,500-watt electric space heater will cost; $0.20 to run per hour. $4.80 to run per 24 hours (day). $11.20 to run per week (8h/day).

Why are space heaters only 1500W?

Government regulations limit space heater output to 1,500 watts, which is not nearly enough to heat an entire home. In general, one square foot of space requires about 10 watts of electricity to heat, which means that a space heater operating at its maximum output can heat a room no larger than 150 square feet.

What size heater for 1500 sq ft?

1,500-square-foot home would take between 45,000 and 90,000 BTUs. 1,800-square-foot home would take between 55,000 and 110,000 BTUs. 2,100-square-foot home would take between 65,000 and 125,000 BTUs. 2,400-square-foot homes would take between 75,000 and 145,000 BTUs.

What is the downside of baseboard heat?

Dangerous and uncomfortable

Electric baseboards get hot, which means you have to keep furniture and curtains at least six inches away from them to prevent fire. If you have young children in the house, they can also be a burn risk. The heat generated by baseboard heaters is a very dry heat.

How can I lower my electric bill with baseboard heat?

How to Bring Down Your Baseboard Heating Bill
  1. Keep Your Heater Clean. Allowing dust and grime to build up on your baseboard heater can begin to reduce its overall effectiveness. ...
  2. Turn Down the Temperature. ...
  3. Upgrade to a Hot Water Heater.

Is it cheaper to leave baseboard heaters on all the time?

Many baseboard heating systems are a form of electric heat that operates without ductwork and can be expensive to run. Baseboard heating is often more efficient than radiators, and they are even more efficient when they are run constantly, instead of being turned on and off.

How many square feet will a 1500 watt heater heat?

So the 1500 watt will usually heat up to 150 square feet. Heating question - trying to understand what size heater to ...

What type of baseboard heater is the most efficient?

Hydronic baseboard heaters radiate heat heated water and are the most efficient form of heating and costs significantly less than electric. Electric heaters, generate and maintain their temperature through electricity.

Why are baseboard heaters under windows?

The gist is that cold air from the window mixes with warm air rising out of the baseboard, that warm air moves around the room, cools and sinks back to the floor, where it is eventually re-heated by the baseboards. That's why traditionally it's recommended to install a baseboard under a window.

What is better than baseboard heaters?

Ductless heat pump systems offer precise temperature control. Small and sleek, they don't detract from your home décor. They provide more comfortable heating, with less of the dryness and irritation caused by electric baseboard produced heat, so that you can breathe easier.

How much clearance is needed for electric baseboard heater?

These include clearing three feet in front of your baseboard heater, six inches to each side, and 12 inches above it. I would, without question, measure out this space to ensure no furniture or other household item is within it. This is basic fire safety; you don't want to take any chances.

Previous article
How serious is a small roof leak?
Next article
How much is 10 for tinnitus?