Electric Boilers

For properties without a mains gas supply, an electric boiler is a great alternative for providing energy efficient heating and hot water.

Electric boilers don't require combustion fuel, and instead heat water as it passes through an element. A major benefit of electric boilers is that they don't need a flue or chimney, allowing for more flexibility with installation and greater use of available space inside the property. Additionally, they are very quiet when in use and run efficiently, losing very little energy or heat whilst generating hot water.

An electric combi boiler is a great choice for smaller properties as it doesn't need a separate hot water tank. The Elnur Mattira MAC15 Electric Combi Boiler is ideal for domestic hot water and heating requirements, can be controlled via wifi with the addition of the CTM20 Thermostat and can be used in conjunction with hot water radiators, underfloor heating, solar panels and heat pumps.

Buying Guide | Electric Boilers FAQ’s

What Size Electric Boiler Do I Need?

How Does an Electric Boiler Work?

How Much Electricity Does An Electric Boiler Use?

How Much Does An Electric Boiler Cost To Run?

What Is An Electric Combi Boiler?

What Size Electric Boiler Do I Need?

When selecting an electric boiler, size is determined by its energy output in kilowatts (kW) rather than physical size. The more kW, the more taps and radiators it can supply.

Electric boilers typically have a much lower power output than gas or oil boilers and generally have a maximum output of 15 kW. As a guideline, you should have 1.5 kW for every radiator in your home. For example, a home with six radiators should get a 9 kW electric boiler. However, many factors such as ceiling height, single or double glazing and insulation can affect this, so it is best to speak to a qualified professional. The Elnur Mattira MAC15 Combi Boiler has a selectable output of 3kW to 15kW, making it ideal for a range of properties.

How Does an Electric Boiler Work?

Electric boilers are connected to the mains electricity to provide central heating and hot water. When hot water is needed, cold water is passed through an electric heating element to warm it, much like a kettle. This heated water is then pumped to radiators or taps as required. An electric combi boiler is a single unit that is usually hung on the wall and combines the functions of a gas combination boiler. This type of electric boiler heats the water on demand and is great for saving space as a water storage tank is not required.

How Much Electricity Does An Electric Boiler Use?

A high quality electric boiler consumes less energy than a gas boiler and is close to 100% efficient, meaning virtually all of the energy it uses is converted into heat. Gas boilers are generally around 90% efficient.

electric boilers have a much lower energy output than gas boilers, offering a maximum of around 15kW, compared to gas boilers which are available up to 35kW.

How Much Does An Electric Boiler Cost To Run?

Electricity costs for operating an electric boiler can vary depending on its usage and efficiency. Direct debit customers are currently paying around 34.04p per kWh for electricity under the Energy Price Guarantee. To help you estimate the cost of operating an electric boiler, we've used this figure to calculate the cost of heating with an electric boiler via a standard central heating radiator system and assumed the system is used for six hours a day. We've used a margin of efficiency based on the efficiency of your radiators. Remember that a well insulated home, lowering the temperature on the thermostat and turning the heating system off regularly can reduce your costs.

Number of RadiatorsBoiler OutputApprox. Yearly Operating Cost
4 6kW £1490
6 9kW £2250
8 12kW £3000
10 15kW £3800

Electric boilers can be considerably more cost-efficient when they are connected to a solar panel system, potentially saving you a lot of money. With a solar battery system, you can even store energy during the day for use with your boiler when you need it. Linking an electric boiler with solar thermal capabilities - such as the MAC15 - can save you up to £80 a year. Additionally, electric boilers running costs can be reduced if energy is exported back to the national grid.

What Is An Electric Combi Boiler?

Electric Combi Boilers are a great option for properties with a low to average hot water demand and for homeowners who are looking to reduce their environmental footprint.

Electric combi boilers are the quickest and cheapest type of boiler to install. This efficient heating system heats water on demand, utilising a heating element similar to a kettle to heat cold water. This means you receive hot water on demand rather than having to store it in a bulky water storage tank, saving you space, energy and money.

Why Shop with Electricpoint?

At Electricpoint we believe there is a better way to sell electrical products online. Building on the experience that we have gained from over 100 years on the highstreet, we aim to make your shopping experience as fast and as simple as possible whilst supplying you with great products at the very best prices. We’re proud of the team we have; their expertise and enthusiasm for helping people is what makes us unique.

As one of the largest online electrical wholesalers we are able to offer our customers:

  • Extensive stock for next day delivery
  • Broad range of specialist products
  • Experienced and knowledgeable staff who are there to help
  • The Electricpoint Price Promise provides access to a better price than any other online electrical wholesaler!
  • Trade Accounts available on application

If you need any advise before making your purchase, please give our team of professionals a call on 0203 994 5470, drop us an email at sales@electricpoint.com or use our Contact Form.

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