Electric vs Gas Combi Boilers: a 2023 Comparison

Electric vs Gas Combi Boilers: a 2023 Comparison

In today’s energy-conscious world, the choice of heating system in your home is more important than ever. With the constant evolution of technology and energy prices, it’s essential to make an informed decision. In this comprehensive guide, we will compare electric combi heaters with gas combi boilers in terms of efficiency and cost in 2023.

What is a combi boiler?

A combi boiler, or combination boiler, is a single unit that both heats your home and provides instant hot water, eliminating the need for a separate water tank. They are a popular choice in the UK due to their compact size and efficiency.

Electric combi boilers: the basics

Electric combi boilers use electricity to heat water, which is then distributed throughout your home. They are generally compact, easy to install, and perfect for homes without a gas connection.

Pros of electric combi boilers

Clean and safe: No risk of gas leaks or carbon monoxide poisoning.

Highly efficient: Almost 100% of the electricity is converted into heat.

Cons of electric combi boilers

Higher running costs: Electricity prices tend to be higher than gas prices.

Dependent on electricity: In a power cut, you could be left without heating or hot water.

Gas combi boilers: the basics

Gas combi boilers use natural gas to heat water and are the most common type of boiler in the UK.

Pros of gas combi boilers

Lower running costs: Natural gas is usually cheaper than electricity, resulting in lower monthly bills.

Powerful: Gas boilers can produce a high amount of hot water quickly.

Cons of gas combi boilers

Safety concerns: There is a risk of gas leaks and carbon monoxide if not properly maintained, but regular servicing by a certified professional can effectively mitigate these risks.

Efficiency comparison

In 2023, electric combi boilers continue to be highly efficient, often converting almost 100% of the electricity they use into heat. Gas combi boilers are generally less efficient, with most modern units operating at around 90-94% efficiency. However, the lower cost of gas often compensates for this difference.

Cost comparison in 2023

Using the average cost of electricity and gas in the UK in 2023, we can estimate the running costs of both types of boilers. Please note that these figures are based on average rates and actual costs may vary.

Electricity cost in 2023: Estimated at around 20p per kWh

Gas cost in 2023: Estimated at around 4p per kWh

Assuming an average household uses around 12,000 kWh of gas or 3,100 kWh of electricity for heating per year:

Annual cost of electric combi boiler: 3,100 kWh * 20p = £620

Annual cost of gas combi boiler: 12,000 kWh * 4p = £480

Installation and maintenance

Electric combi boilers are generally easier and cheaper to install, as they don’t require a flue or gas line. Maintenance is also typically simpler and less frequent.

Gas combi boilers, on the other hand, require regular servicing by a certified professional to ensure they are safe and operating efficiently.

Bottom line

In 2023, the choice between an electric and a gas combi boiler is clear for many homeowners. Gas combi boilers tend to have lower running costs, especially in areas where gas is significantly cheaper than electricity.

With an experienced installer, the complexity of gas boiler installation becomes a non-issue. They handle the entire process, ensuring your new gas combi boiler is installed safely and efficiently. This peace of mind, combined with the lower running costs of gas, makes gas combi boilers an excellent choice for many homeowners looking to save on their energy bills without sacrificing comfort or convenience. For expert installation that takes the stress out of the process, consider a trusted company like Fast Boilers.