What Is an Electric Boiler?
An electric boiler is a modern heating solution that uses electricity to heat water or produce steam. Unlike traditional gas or oil boilers, electric boilers do not require combustion, making them cleaner and easier to install. These systems are ideal for smaller homes, apartments, or as a supplement to other heating systems.
How Do Electric Boilers Work?
An electric boiler is a large water tank with an inlet and outlet. Within that large tank is an array of electric heating elements. Electricity comes from the main power supply of your home and passes through those heating elements to warm up to very high temperatures. When those electric elements are heated up, water passes over them and warms up as well. When the water reaches a high enough temperature an electric pump moves the water from the boiler through the outlet to the rest of the house to run through different types of radiators installed in your home. The inlet takes in cool water from the home to be warmed up by the boiler before being sent out once again.
Electric vs. Gas Boilers
Gas boilers can be quite expensive to install, especially if you do not have a gas line running through your home already. Running a gas line is a big undertaking that you will pay dearly for. Fortunately electricity is run to most homes today. That means that an electrical line will not have to be run to your home in order for you to get an electric boiler installed. It will simply have to be wired up to existing lines and you can benefit from the solution almost immediately. This means that electric boiler are more affordable to have installed and you can expect to receive lower quotes for such an installation compared to the price to install a new gas boiler.
Another advantage to an electric boiler heater is you will not have to worry about a gas leak in your home. These units are very safe and can be put in more areas around your home for this reason. They are not as difficult to install and you will feel secure that your system is going to provide you with the heat you need without causing any problems for you.
Fuel | Average Cost | BTUs per Unit | BTUs per $ at 100% Efficiency | BTUs per $ at 80% Efficiency |
---|---|---|---|---|
Natural Gas | $12.95 per 1,000 cubic feet | 1,075,000 per 1,000 cu ft | ~83,011 | ~66,408 |
Propane | $2.36 per gallon | 91,000 per gallon | ~38,559 | ~30,847 |
Electricity | $0.13 per kWh | 3,413 per kWh | ~26,253 | n/a |
How Much Does an Electric Boiler Cost?
The cost of an electric boiler varies depending on its size, efficiency, and installation requirements. Below are typical cost ranges:
- Electric Boiler Price: $1,500 to $5,000 for most residential models
- Electric Boiler Installation Cost: $6,469 to $11,885, including labor and materials
- Cost to Replace Gas Boiler With Electric: Additional expenses may apply for decommissioning the gas line
Electric Boilers Energy Efficiency
Electric boilers are more efficient than boilers that run on natural gas because no exhaust flue is needed. When gases are burnt some waste gas is produced and this has to be released out of the home. Along with those waste gases goes some of the heat from the boiler as well, this is wasted energy. Since electric boilers do not create waste gases, no flue exists and nearly all the created heat is used heating a home. This allows electric boilers to be up to 99% efficient, a number that is not possible for most fossil fuel solutions.
Electric Boilers Save Space
Electric boilers can be positioned most anywhere that you like in your home because they do not have a flue that has to be put up through your home and they do not have to be set near an outside wall either. Instead they can be positioned in the center of your home, or anywhere else that you like really. The boiler also does not need a fuel tank like an oil boiler installation or propane unit would. That means you will save space that would be dedicated to fuel as well.
Cons of Electric Boilers
- Expensive to Run
- Electricity generally costs more than gas.
- You’ll likely spend more to produce the same heat.
- Over time, operating expenses can add up.
- Low Heating Capacity
- Electric resistance produces less heat than gas.
- Large homes might need multiple units or major upgrades.
- Some homes simply require gas to meet high heat demands.
- No Heat During Power Outages
- If the power goes out, so does your heat and hot water.
- Gas boilers can function during outages with proper setup.
- Electric systems rely entirely on a consistent power supply.
Electric Boiler Maintenance Tips
Electric boilers are very easy to maintain. There are no burning gases and there is no residue buildup over time to clean away. Instead you have a very clean solution and the only real maintenance that has to be done is cleaning out debris brought in from the water that runs through the system.
Electric boilers generally require less maintenance than the other types of boilers you could have installed such as a new steam water boiler, which is more complicated to run.
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