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Advantages and Disadvantages of an Electric Boiler

Electric boilers are the most popular choice of boiler in the UK after natural gas boilers.

Some popular electric boilers available on the market at the moment are the Trianco Aztec electric boiler and the Heatrae Amptec electric boiler, but there are many other types of electric boiler available.


How do Electric boilers work?

Whereas gas boilers rely on burning gas to generate heat, electric boilers rely on the electricity from the mains supply of the property to heat elements within the boiler. Water gets hotter as it passes over these elements and once sufficiently heated the water is then pumped to where it is required.

Electric boilers remain popular because they are considered to be around 99% efficient to the end user. This is because electric boilers do not rely on the burning of fossil fuels such as gas or oil to produce heat and there is therefore no chance of losing valuable heat when releasing waste gases into the atmosphere.

The Trianco Aztec electric boiler is 1 popular electric boiler available.




Advantages of an electric boiler:

  • Increased efficiency
    A traditional gas boiler system normally disposes of waste gases by taking it out of the property via a flue or chimney. As the flue is not required in an electric boiler system setup, this means that useful heat does not escape, helping the electric boiler to run at around 99% efficiency.
  • No need for a mains gas supply
    Over 2 million homes in the UK don’t have access to a mains gas supply, making electric boilers an essential (and cheap) means of providing central heating and hot water.
  • Reduced installation costs
    If you do not currently have a gas pipe supply into your property it can cost a lot of money to get this setup. An electric boiler is a cheaper solution. It is also beneficial as you do not need to purchase a separate Flue or chimney as there is no requirement to take waste emissions from the boiler to outside of the property, as with a gas boiler. This will obviously save you money in the initial installation stage.
  • Space efficient
    The fact that a flue is not required benefits smaller properties where space is an issue. There is also a lot more flexibility in where the electric boiler can be installed, as it doesn’t necessarily need to be close to an outside wall. Unlike other types of boiler, there is also no requirement for an additional fuel storage tank.
  • Quiet
    Electric boilers are not reliant on elements within the boiler moving to generate heat. This means that electric boilers are renowned as being very quiet systems when in use.
  • Maintenance
    Electric boilers generally don’t need to be serviced as regularly as gas and oil boilers as they are considered to be like any other electrical appliance. Generally they only need maintaining  if there is a problem with the boiler itself.
  • Good for environment*
    Electric boilers rely on electricity rather than the burning of fossil fuels to generate heat. The electric boilers themselves are therefore considered more environmentally friendly than other types of boiler as there isn’t a requirement to take the waste gas emissions produced by the boiler out into the atmosphere. *However, the full environmental picture does cast doubt over the claim that electric boilers are fully environmentally friendly (see disadvantages list below).


Disadvantages of an electric boiler:

  • Not always suitable for larger properties
    Electric boilers can only heat a certain amount of water at any one time, therefore a more conventional boiler system may be more suitable to heat larger properties where hot water usage levels may be higher.
  • Environmental benefits myth
    Although the electric boiler units themselves are considered fairly environmentally friendly heating systems, there are concerns that the actual process of creating electricity itself in power stations generates the same amount of pollution as gas and oil boiler systems, therefore negating this benefit.
  • Cost of electricity
    Due to the higher cost of electricity over gas, electric boilers are considered a slightly more expensive way to provide heat to a property.
  • Potential power cuts
    By choosing an electric boiler you will be relying on an electricity source to provide hot water to your home. This means that in the event of a power cut you could be without central heating or hot water for hours or (depending on where you live) even days.


A wide range of electric boilers are available to purchase online at some really competitive prices from Direct Heating Supplies.

New Vaillant ecoTEC Combi Boilers for 2012

Vaillant are infamous for their reliable and affordable gas boilers. The flagship manufacturer has launched a revamped model of the popular Vaillant ecoTEC Combination boilers for 2012, with advanced electronics, revised componentry and stylish looking case designs.

High efficiency combination boilers are becoming an increasingly popular choice in UK homes and now account for well over half of all new domestic boilers installed in Britain every year. Furthermore, ecoTEC condensing combination boilers require no hot water cylinder or cold water storage tank, minimising the space they occupy.

Vaillant’s range of combination boilers is broad enough to ensure the ideal solution for all house types – from a one bedroom/bathroom flat through to a four bedroom property with two bathrooms.

Vaillant ecoTEC Pro  range

Vaillant ecoTEC pro 28 combi boilers have the same high build quality as Vaillant ecoTEC plus combi models, but with a more basic specification, and with a shorter warranty period.Vaillant ecoTEC pro combination boilers models are ideally suited to properties with lower hot water demands such as flats or apartments, and use less gas over other gas boilers.

The boilers at the forefront of Vaillants range are the ecoTEC Plus Combination Boiler range. With a range of 6 Combination boilers ranging from 19kw to 28kw output with flow rates from around 9 litres per minute to over 15 litres per minute. With Vaillant’s ‘AquaComfort’ system ecoTEC plus combination boilers offer excellent hot water performance providing instantaneous hot water at a constant temperature.

  • Vaillant ecoTEC Plus 824 Combi Boiler
    24kw Boiler with DHW Flow Rate of 9.4 Litres per minute
  • Vaillant ecoTEC Plus 831 Combi Boiler
    31kw Boiler with DHW Flow Rate of 12.7 Litres per minute
  • Vaillant ecoTEC Plus 837 Combi Boiler
    37kw Boiler with DHW Flow Rate of 15.2 Litres per minute
  • Vaillant ecoTEC Plus 937 Combi Boiler
    37kw Boiler with DHW Flow Rate of 15.2 Litre per minute
  • Vaillant ecoTEC Exclusive 832 Combi Boiler
    32kw Boiler with DHW Flow Rate of 12.9 Litre per minute
  • Vaillant ecoTEC Exclusive 838 Combi Boiler
    38kw Boiler with DHW Flow Rate of 15.2 Litre per minute

The result of over 135 years’ accumulated heating industry experience and expertise, you can rest easy knowing ecoTEC offers exceptionally high efficiency and is also highly economical in operation. While compact dimensions and excellent siting versatility mean that ecoTEC is extremely easy to accommodate.
Not content with producing the boiler that was awarded Which? Magazine ‘Best Buy’ status in 2011, Vaillant added a host of new and innovative features to both ecoTEC plus and pro boiler ranges.
Improving the boiler efficiencies with a new gas system, enhancing the already industry leading electronics and taking ecoTEC performance to a new level. Vaillant have enhanced the appearance with a new case design and clean, modern control panel.
All Vaillant ecoTEC condensing boilers are SEDBUK 2005 ‘A’ rated (the best possible rating for low carbon emissions) and Energy Saving Trust recommended. With an efficiency rate of over 89%, compared to about 78% for standard efficiency boilers, Vaillant boilers deliver excellent savings on fuel bills and reduced impact on the environment.
All from a heating company that has been awarded Heating Manufacturer of the Year at the heating industry’s Installer Live Awards (formerly CORGI Awards) in both 2010 and 2011. The all new Ecotec boilers for 2012 are soon to become the nations favourite gas boilers for central heating domestic properties.

A full range of Vaillant boilers are available here.