Eco friendly boilers: Should you replace your gas boiler with an electric boiler?

More than 80 percent of homes in the UK use gas boilers for their central heating. Boilers provide hot water and heat our homes, but do you know your gas boiler from your electric? Should you replace your gas boiler with an electric boiler?

About 22 million UK homes are heated by a gas boiler, but that doesn’t mean they are the best boiler to install.

If your property isn’t connected to the gas network or you are looking for something more efficient, you might prefer an electric boiler.

Gas boilers and electric boilers work in a different way and so have different impacts on the environment. reveals the ins and outs of gas and electric boilers to help you make your decision between the two.

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A gas boiler uses a gas burner to generate heat.

The burner is connected to a heat exchanger, which heats water in its chamber.

The hot water is pumped in the direction of the heating circuit.

While natural gas is cheaper than using electricity to run your boiler, they may damage the environment.

According to, gas central heating utilises carbon monoxide, an odourless, colourless, poisonous gas.

An incident with a faulty cooker or a fire, may cause gas to be emitted. This is a major potential pollution hazard.

When in contact with other pollutants, carbon monoxide can form ‘bad’ ozone which is damaging to our health and to the environment.

Should you replace your gas boiler with an electric boiler?

If you have main gas, a gas boiler is likely to be the cheapest heating option.

However, if you are trying to be more eco-friendly then you may wish to upgrade to an electric boiler which uses electricity as fuel.

Additionally, if you live in a smaller property that isn’t connected to the gas network, electric boilers are a cost effective solution.

For those who live in larger homes, an electric boiler may not work for you. These boilers are only able to produce smaller amounts of hot water.

While electric boilers aren’t as cheap to run as gas boilers, their installation costs are much lower than those of gas boilers and they do not need annual maintenance or safety inspections.

Electric boilers don’t need to burn fuel to produce heat, so they don’t lose energy through waste gases or flues.

This means electric boilers have efficiency rates of 99 percent, compared to 89 to 95 percent for gas boilers.

They are also less noisy, and they take up much less space.

One downside is that since electric boilers rely on electricity, you may lose access to hot water and heating if there is a power cut.

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