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Electric vs Gas Boilers in the UK: A Complete Cost & Efficiency Comparison

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Electric vs gas boiler units compared by running costs and energy use

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It really can feel like trying to navigate a maze when you’re choosing a boiler to heat up your home. Electric and gas boilers are some of the most frequently used types among many others in the UK. 

Well, like many things in life, they have got features that make them ideal for specific people or lifestyles. If you are considering switching to electric or will stay on gas as a heating source, well, you’ve come to the right place.

This guide breaks everything down about electric boilers and gas boilers: how much they cost and how efficient they are; the benefits and drawbacks of each. With the heated discussion you’ve been waiting for, let’s get into it!

Electric Boiler

Electric boilers are becoming a favourite alternative for homeowners who want to enjoy efficient heating. They convert electricity to heat, making them an eco-friendly option. 

The main advantage is their compact size. Electric boilers occupy minimal space and can fit into a very small space, suitable for apartments and houses that have very limited spaces to install. In addition, they require much less maintenance compared to gas as there are no flues or combustibles.

These systems also provide instant hot water. This means you never run out of hot water in the middle of your shower—thereby perfect for medium to large families.

Energy efficiency is also another massive strength of electric boilers; these mostly have higher efficiency ratings compared to their gas counterparts. Additionally, the absence of fuel storage and pipelines ensures installation becomes simpler and often less expensive as well.

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Gas Boiler

A gas boiler is one of the most popular options for many households in the UK. They ensure fast heating and hot water, making them perfect for a busy family. These systems work by burning natural gas or LPG that transfers heat into water and then spreads it to radiators or a system of underfloor heating. 

This results in a warm home even on the coldest days. One big advantage that a gas boiler has is the fact that it is also efficient. Most of the recent models boast high energy  ratings, ensuring most of your fuel will be converted to usable heat rather than waste.

However, there are two considerations that prospective buyers need to take into account: availability as well as the installation needs. They do pretty well in urban locations with a natural gas line, but rural locations might not be so lenient. 

Maintenance also comes into the equation. Regular servicing of your gas boiler ensures it runs safely as well as efficiently throughout its life.

Electric Vs Gas Boiler Features

There are a lot of factors when one is choosing to opt between an electric and a gas boiler. The electric boiler is compact and quick to install.

There is also less maintenance because there are fewer moving parts. The gas boiler, however, tends to heat the water faster.

They would be relatively more efficient in large homes where there is high demand, but they should have a proper ventilation system due to emissions.

Most people wonder which is cheaper in terms of the energy cost: gas or electricity. However, this depends on the region; usually though, it has been realised that gas is less expensive than electricity. Central heating boilers that use electricity are eco-friendly if renewable sources are used.

Then, weigh the initial investment and long term savings. However, each of them has some advantages and disadvantages that should be taken cautiously according to the individual’s needs and circumstances.

FeatureElectric BoilerGas Boiler
Fuel SourceElectricityNatural Gas
Initial CostGenerally LowerHigher
Running CostsCan be higher, depending on electricity ratesTypically lower
Environmental ImpactGenerally more environmentally friendly, especially if electricity is generated from renewable sourcesCan produce carbon emissions
MaintenanceLower maintenance requirementsHigher maintenance requirements
InstallationEasier to installCan be more complex to install
Suitable forSmaller homes, off-grid propertiesLarger homes, areas with reliable gas supply

Are Electric Boilers Expensive To Run

As one considers electric boilers, some of the first things that come to mind are how expensive they must be to run. The answer isn’t simple. Electricity costs can vary hugely with market conditions, and in most places, electricity is actually more expensive than gas, at least based on a full-size boiler scenario.

This makes electric boilers look less economical at first glance, but that’s very dependent upon your energy rates and usage.

Efficiency is another factor. Electric boilers are typically able to convert nearly all energy consumed into heat and have much higher efficiency ratings than conventional gas options. Thus, while the unit price for electricity might be higher, you burn through less fuel in the process. 

It is essential to consider local regulations about using renewable energy sources. For instance, some government programmes offer incentives that make electric heating more attractive in terms of long-term operational cost savings.

Electric Boilers For Hot Water

Electric boilers for hot water are quickly emerging as an indispensable part of homes across the UK. They have given homes a reliable and efficient way to supply domestic hot water without the need of any gas connection. 

These boilers heat the water directly using electricity so that it heats up in a matter of seconds. This means you get hot water on demand, ideal for busy homes.

The electric boiler is relatively compact and can be used in small homes or apartments without posing any problems in regard to space. Installation usually does not pose major problems as flue is not required.

Their greatest advantage relates to their environmental impact. Electric boilers can run on renewable energy, thus representing a greener alternative when compared with the use of gas.

Homeowners like the fact that electric models do not require as much upkeep or maintenance. They tend to last longer, and also are less likely to have to be serviced as often as other models since they have fewer moving parts than gas boilers.

Electric Central Heating Boilers

Electric central heating boilers are becoming increasingly popular throughout the UK, especially among households that have no gas connection. The systems are known to give very efficient heating in your space. The main benefit is easy instalment. 

Most electric boilers might have less intricate plumbing works compared to their gas counterparts; hence they are a good fit for the setup of an existing house.

They also offer controlled temperatures to make sure the heating around your abode can be adapted to the requirements of each room. 

This in turn will increase comfort around your home. Electric boilers do not produce any emission on-site. If you are concerned with carbon footprint, then electric boilers will work well.

The operational cost is also higher than that of their gas counterparts at the peak, but technology continues to close that gap. Plus, many homeowners appreciate quiet operation and low maintenance requirements as well.

Which Is Cheaper Gas Or Electricity

While evaluating energy supply for heating, the cost is predominantly a crucial factor. Most homeowners in the UK would probably approach with the question: ” which one is less expensive, gas or electricity?

Gas prices often tend to be lower than electricity tariffs in the UK, this places that supplier ahead at the exact amount of money you will be paying each month to keep your home warm. This difference sometimes plays a big role in savings if you are a gas boiler user.

However, efficiency is also a big deal. Efficient systems consume more heat per unit of fuel consumed compared to electric models. An efficient heating system means that the amount of heat provided per unit of fuel consumed is high.

The cost of electricity varies depending on the demand that is being placed on it and also a regional tariff. In certain regions, there exists a peak hour and during such hours, the electricity becomes relatively expensive, making the electric systems costly for use during those hours.

Knowing the specific needs of your household and the pattern of energy consumption will take you to the more economical heating solution for your home.

FactorGasElectricity
Average cost per unitTypically lower than electricityCan be higher than gas, but varies depending on region and supplier
Standing chargesUsually lower than electricityCan be higher than gas
Usage patternsLower costs for those who use gas for heatingLower costs for those who use electricity for heating

Cost Feature Comparison Electric Vs Gas Boiler

Many factors come into play when comparing electric and gas boilers in terms of cost. The cost of a one-time purchase is quite different. Generally, electric boilers are relatively cheaper compared to gas boilers for a one-time purchase.

However, when it comes to long-term running costs, the long-term cost picture is quite different. In many parts of the UK, gas is relatively cheaper per kWh compared to electricity. This might make gas boilers more economical in the long run if your heating needs are high.

FeatureElectric BoilerGas Boiler
Initial CostGenerally lowerHigher
Running CostsCan be higher, depending on electricity ratesTypically lower
MaintenanceLower maintenance requirementsHigher maintenance requirements
InstallationEasier to installCan be more complex to install

Boiler Brands & Typical Installation Costs

Here’s a simple overview of popular boiler brands in the UK and their average costs, including installation:

Gas Boiler BrandsTypical Cost (Installation Included)Electric Boiler BrandsTypical Cost (Installation Included)
Worcester Bosch£1,500 – £3,000CFB Boilers Ltd£1,200 – £2,500
Viessmann£1,800 – £3,500Alpha Boilers£1,300 – £2,700
Vaillant£1,600 – £3,200Vaillant£1,500 – £3,000
Alpha£1,400 – £2,800Viessmann£1,800 – £3,500
Baxi£1,500 – £3,000Baxi£1,600 – £3,200
Ideal£1,400 – £2,800CERTUSS (UK) Ltd£1,300 – £2,700

Maintenance Cost of Electric Boiler Versus Gas Boiler

There are a few key differences between electric and gas boilers when it comes to determining the cost of maintenance.

Electric boilers require less frequent service work because they have fewer moving parts, often making annual service costs lower as compared to gas boilers.

On the other hand, a gas boiler needs to be checked annually for safety. It should be serviced by a qualified engineer that ensures that it operates efficiently and safely.

This can add up after some years. Though you will save on service costs with an electric boiler model, you should factor in the cost of repairs as well.

If you experience a problem with an electric boiler, professional engineers might charge you more since they specialize in electrical systems.

FeatureElectric BoilerGas Boiler
FrequencyLess frequentMore frequent
TasksCleaning filters, checking for leaksCleaning filters, checking for leaks, servicing burner and heat exchanger
CostGenerally lowerGenerally higher

Gas vs Electric Boiler - Efficiency Comparison

Efficiency in terms of gas and electric boilers differs considerably. Gas boilers are known to achieve high efficiency ratings; some even exceed 90%. The use of gas here, to that extent, ensures that a great proportion of the fuel is converted into usable heat.

Electrical boilers are another example. They boast nearly 100% efficiency since all of the electrical power taken is converted into heat, with no loss of flue. Again, however, these methods do not take into account the energy production, and some forms of electricity generation are less efficient.

The quality of the insulation in your home also comes into play as an overall factor, this will affect how well either system retains heat.

FeatureGas BoilerElectric Boiler
EfficiencyGenerally higher (typically 90-95%)Can vary depending on the model and electricity source (typically 85-95%)
Energy SourceNatural GasElectricity
Efficiency FactorsBurner efficiency, heat exchanger efficiency, combustion efficiencyEfficiency of the electricity generation process

Renewable Alternatives to Gas & Electric Boilers

Alternative sources to the traditional gas or electric boiler in homes for people across the world are increasingly being demanded because of growing concerns over sustainability. These alternatives include:

  • Air Source Heat Pumps: Other alternatives widely accepted nowadays are heat pumps. The heat pumps are an efficient means of warming homes using ambient air or a ground source.
  • Solar Thermal Systems: The solar thermal system converts sunlight into hot water. This gadget can minimise reliance on other heating methods to a certain extent and improve optimum eco-friendliness to the largest extent.
  • Biomass Boilers: Biomass boilers are another promising alternative. These convert organic matters such as pellets or wood chips into thermal energy through burning. This is a renewable resource but cuts carbon emissions also.
  • Hydrogen Boilers: Hydrogen boilers are another interesting choice for those exploring other forward-thinking options. Hydrogen boilers burn hydrogen as a fuel and release water vapour when burned.

Get Your New Boiler Today

The decision between electric and gas boilers often can be rather daunting. Both are good in their own terms but do present a range of advantages and disadvantages. 

Electric boilers are often friendlier to the environment and perhaps best suited for small homes or flats due to a lack of space. Gas boilers, however, usually have much better performance compared to heating in larger buildings.

But if you are puzzled about the question of whether electric boilers cost a lot to run, then you need to look at your energy rates and usage patterns. 

They usually cost less to install compared to a gas boiler, but running them is slightly more expensive than a gas boiler, depending on electricity rates in your area. 

Time to upgrade? Having a new boiler to your specifications ensures you stay comfortable while investing in quality and efficiency. Whether it is an electric boiler UK or a gas boiler, now is the time to decide what will best suit you!

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