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Electric Fired Boiler System Cost

Electric Fired Boiler System Cost

National average
(27,000BTU electric hot water boiler for radiant floor heating of 800sq.ft.)
Low: $1,000

(10,000BTU electric boiler for baseboard heating of one room)

High: $8,000

(50,000BTU electric boiler for steam heating of 1,000sq.ft.)

Cost to install an electric fired boiler system varies greatly by region (and even by zip code).
Get free estimates from air-conditioning and heating contractors in your city.

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Electric Fired Boiler System Cost

National average
(27,000BTU electric hot water boiler for radiant floor heating of 800sq.ft.)
Low: $1,000

(10,000BTU electric boiler for baseboard heating of one room)

High: $8,000

(50,000BTU electric boiler for steam heating of 1,000sq.ft.)

Cost to install an electric fired boiler system varies greatly by region (and even by zip code).
Get free estimates from air-conditioning and heating contractors in your city.

The average cost of installing an electric fired boiler system is $3,000​.

How Much Does It Cost to Install an Electric Fired Boiler System?

Boilers are one of the most common methods for heating homes in the U.S. A boiler heats water and circulates that water through a closed system of radiators or tubing, or it converts the water to steam and sends the steam through a radiator system. Boilers come in many types, sizes, and fuel sources. Electric boilers are less common for heating entire homes because of the high cost of the energy. However, they are a common choice for additions, small houses in warm or moderate climates, or when you want to heat a single room of your home.

The average cost to install an electric boiler is $1,500 - $6,500, with most people paying around $3,000 for a 27,000BTU electric hot water boiler designed for heating an 800sq.ft. addition with radiant floor heating.

Electric Boiler Costs

Electric fired boiler system installation costs
National average cost$3,000
Average range$1,500-$6,500
Minimum cost$1,000
Maximum cost$8,000

Electric Boiler Costs by Type

Boilers work in two ways - heating water and generating steam. They heat water, which is circulated to radiators or radiant flooring and back to the boiler again in a closed system. They produce steam that is circulated to radiators. Hot water boilers are lower maintenance and more efficient, providing more heating options. Steam boilers are sized differently because they are only filled about halfway with water to generate steam.

Some boilers generate either, but most are designed for one function. They have a range of associated costs because the boiler size has the biggest impact on the price.

Electric Boiler Cost

Boiler TypeAverage Cost (unit only)
Hot Water$800 - $5,000
Steam$1,500 - $7,000

Hot Water Boiler

Hot water boilers are the most common type, especially in new installations. They are more efficient, require less maintenance, and cost less. They are also more readily available, with a wider range of options for sizing and installation types. They have a cost range of $800 - $5,000 for the unit itself.

Steam Boiler

Steam boilers are uncommon when used with electricity, but they exist. They are most commonly used for upright radiator systems in existing homes, rather than with newer systems. This is partly due to the higher costs and lower efficiency of the system. Most people choose hot water boilers when heating with electricity. Electric steam boilers cost between $1,500 and $7,000 for the boiler alone.

How the Heat Is Distributed

All boilers work in one of two ways, generating either steam or hot water, but with electric boilers, steam is less common.

In a hot water boiler, the water is heated to high temperatures. It is circulated to either baseboard radiators or in-floor radiant heating, before coming back to the boiler. The water that returns is about 5 degrees cooler than when it went out. This water is reheated, and the process repeats.

Steam boilers are filled about halfway with water, leaving room to generate steam. They use more energy for this purpose, and the steam is then run through pipes to upright radiators. The steam returns to the boiler where it condenses into water and is reheated to return to the radiator.

Both system types provide consistent heat, although radiant in-floor heating is considered the most efficient because it warms the entire room. Upright radiators often warp over time and release some of their heat to the exterior of the home. Baseboard radiators are also fairly efficient at producing heat, but they limit the placement of furniture.

Electric Boiler Costs by Brand

Electric boilers are made almost universally by companies that specialize in electric appliances. It is unlikely to find many options for manufacturers that make both electric as well as oil and gas boilers if you are shopping between fuel types.

There are several good brands for electric boilers that provide a quality heating source:

Electric Boiler Prices

Electric Boiler Prices

BrandCost Range
Electro Industries$800 - $4,000
Thermolec$1,000 - $4,000
Slant/Fin$1,200 - $7,000
Argo$1,200 - $7,000

What Size Electric Boiler Do I Need?

Electric boilers come in a range of different sizes, based on how much heat or energy they produce. This energy is displayed in BTUs or British Thermal Units. The more BTUs a unit has, the more heat it produces.

It is important when using any boiler to get one properly sized for the space you are heating. Boilers that are too small struggle to heat the room, while boilers that are too large use more energy, costing you more each month.

BTUs for boilers are determined by multiplying the number of BTUs you need to heat one square foot of your home based on your climate zone, and the square feet of the space you are heating.

Because electric boilers are so expensive to run, they are not usually used in colder climates, unless it is for a very small home or an addition to an existing home. For example, if your home is heated by forced hot air and you add a sunroom addition, you may want to heat this area with radiant heating rather than extending your existing ductwork. In this scenario, an electric boiler makes sense.

If you have a larger home, even in a warmer climate, heating with an electric boiler is still expensive. It is usually recommended to install a heat pump instead if you want to use electricity because they cost less to run.

To find the size boiler you need, locate your climate zone by consulting the U.S. Department of Energy’s climate zone map. For boilers, the country is broken into 7 zones, with zone 1 being the lowest part of Florida (the Miami area) and zone 7 the very northernmost parts of Maine and Minnesota.

What Size Electric Boiler Do I Need

ZoneBTUs (per square foot)
1 & 218 - 30
325 - 35
428 - 40
540 - 50
6 & 750 - 60

To find your boiler size, calculate the square footage by measuring the length and width of the area you are heating, and multiply it by the BTUs for your zone. Below is the average boiler size to heat a space in zone 4 based on square footage:

Electric Boiler costs by square foot

Electric Boiler costs by square foot

Square FeetBTUs
2005,600 - 8,000
40011,200 - 16,000
60016,800 - 24,000
80022,400 - 32,000
1,00028,000 - 40,000

Try to stay within 10% to 20% of your project BTUs. If you are between sizes, round up. Try not to go more than 20% higher as this yields an oversized boiler for the space.

Labor Cost to Install an Electric Boiler

Electric boilers are lightweight and easy to install. They do not combust, so venting is not needed. They also do not condense, so a drain is not required. They take up much less space and do not require a full boiler room to operate. This makes the installation fairly easy for most boilers, taking 2 - 3 hours on average at around $100 an hour. This makes labor costs about $300 for most electric boilers. If you do not already have the plumbing installed, your labor costs are much higher because the cost to run the tubing or plumbing is still calculated at around $100 an hour. This takes 8 or more hours to complete, making labor costs $800 - $1,200 on average.

Close-up of man hands setting the temperature of water in Electric Boiler

Cost to Run an Electric Boiler

To determine the cost to run your electric boiler, you need to know a few things first. Find out how many kilowatts your boiler uses, hours a day it runs, and your kilowatt per hour cost from your electric company, which is found on your electric bill. According to the U.S. Energy Information Administration, the average cost in the U.S. as of January 2020 is 12.79¢ per hour.

A 27,000BTU boiler has an average kilowatt per hour usage of 7.9 kWh. On the coldest days of the year, your boiler runs 90% to 100% of the time, consistently heating the water it needs to circulate. On warmer days, it may run for as few as two hours a day.

This means that a 27,000BTU boiler costs anywhere from $2.02 to $24.25 a day to run. To know your exact cost, determine the average run time for your area, the cost of electricity, and the average size of your boiler.

High-efficiency Electric Boiler

By definition, all electric boilers are technically high-efficiency, converting close to 100% of the energy used into heat. However, this efficiency is misleading because while electric boilers are good at converting energy to heat, the cost of electricity is often considerably higher than the price of gas or oil.

Electric vs Gas Boiler

When installing a new boiler for your entire home, you may want to consider a gas boiler instead. Gas boilers need a gas line run to your home, which means that they are not available in all areas.

However, if you have access to gas, heating with gas costs roughly ¼ of the costs of heating with electricity. Gas boilers are up to 98% efficient, and while they require more maintenance and a vent to release their combustion, the savings are significant enough to warrant the higher installation cost.

Gas boilers cost between $4,000 and $7,000 to install on average for a boiler large enough to heat a 1,500 sq.ft. home. Electric boilers are typically only used for smaller areas because the cost of the electricity is too high to make them a viable option. Homeowners looking at electricity for heating are usually encouraged to consider heat pumps instead.

Replace Gas Boiler with Electric

While it is possible to replace a gas boiler with an electric model, you cannot do so if you have been heating your entire house with gas. Electric boilers are not made in sizes for residential settings, and the cost of a commercial boiler large enough to heat a home of 1,500 sq.ft or more costs $15,000 before installation. In addition, the cost of heating the house is roughly 4 times what it is with gas.

If you are heating a very small area with gas, and do not mind the higher electric bills, it costs around $4,000 to install the boiler, seal off the vent, cap off the gas line, and wire in the new boiler.

Boiler vs Water Heater

Both boilers and water heaters heat water, but they do so in different ways and for various purposes. A water heater is a water storage tank meant to heat the water you use for bathing and laundry. It stores and heats the water until needed, and then fresh water enters the tank to be heated.

A boiler heats water that is then circulated through pipes or tubing to heat a room. The water returns to the boiler again to be reheated, creating a closed-circuit system. Water heaters are open, meaning water goes one way through the heater and out and fresh water comes in.

Even if you have a water heater and plan to heat your home with hot water, you need a boiler.

Electric Boiler Maintenance

Electric boilers have very few moving parts and do not combust, condense, or exude carbon monoxide. They are clean and need almost no maintenance. Since the system is closed, new water is only introduced periodically. Occasionally, the old water should be flushed to remove any debris that may have built up in the system, but otherwise, the boiler does not require any annual maintenance or care.

Manual J Calculation

To determine the exact size of heating or cooling system your home needs, your HVAC contractor performs a Manual J calculation. This takes into account the size and age of your home, climate, home insulation, and system type. While you may calculate a general idea of boiler size your home needs, always have your HVAC contractor perform the Manual J calculation before purchasing to ensure you get the proper size for your needs.

Enhancement and Improvement Costs

Old Boiler Removal

Most HVAC companies remove your old boiler at no charge. However, some may have a $50 - $200 disposal fee. Always ask your technician if this applies.

Boiler Insulation

If you want to lower your energy costs, insulate your boiler so that it loses less energy. This has a price of $50 - $100 on average.

Additional Considerations and Costs

  • While gas and oil boilers continue providing heat even if the power goes out, an electric boiler stops working in the event of a power outage.
  • You may install electric boilers nearly anywhere. They do not require a flue or boiler room like gas or oil boilers, so you can find a good fit for your needs.
  • In most areas, a permit and inspection are required to install a new boiler. Check with your town or city hall for more information.
  • Boilers work well in cold climates, but in warmer climates, heat pumps are a better option because they also work as an air conditioner.
  • Improve the energy efficiency of your home before buying a new boiler to reduce your heating load. This enables purchasing a smaller system and using less energy.
  • Boilers are used to heat the home but do not cool it. If you also need a cooling system, install a separate air conditioner.


  • Are electric boilers cheaper than gas?

The boiler itself is less expensive, but the cost to run it is higher.

  • How much do electric boilers cost?

Boilers cost between $800 and $7,000, depending on the size.

  • Can I replace my gas boiler with an electric boiler?

If you heat a small area, you can replace it. Electric boilers are too expensive to heat large areas.

  • How long do electric boilers last?

An electric boiler lasts about 15 years on average.

  • Do electric boilers need a water tank?

No, electric boilers do not store water but push it through the system instead.

Was this guide helpful to you?

Cost to install an electric fired boiler system varies greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.

Electriv boiler system close up

Labor cost by city and zip code

Compared to national average
Albuquerque, NM
Anchorage, AK
Ashland, NH
Athens, GA
Atlanta, GA
Austin, TX
Baltimore, MD
Bloomfield, NJ
Brooklyn, NY
Chicago, IL
Cincinnati, OH
Coldwater, MI
Colorado Springs, CO
Dallas, TX
Dayton, OH
Denver, CO
Fort Lauderdale, FL
Hartford, CT
Houston, TX
Huntington Beach, CA
Huntsville, AL
Indianapolis, IN
Irvine, CA
Jacksonville, FL
Jamaica, NY
Kansas City, MO
Las Vegas, NV
Laurel, MT
Levittown, NY
Long Beach, CA
Los Angeles, CA
Miami, FL
Milwaukee, WI
Monroe, NY
New York, NY
Orlando, FL
Pensacola, FL
Philadelphia, PA
Phoenix, AZ
Reno, NV
Sacramento, CA
Saint Louis, MO
Saint Paul, MN
Saint Petersburg, FL
San Antonio, TX
San Diego, CA
San Francisco, CA
San Jose, CA
Seattle, WA
Smyrna, GA
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