The most modern boiler type is the condensing boiler. These are the only boilers that are allowed to be installed in new build properties, unless it is impractical to do so, following UK building regulations that were brought into force in 2005. Condensing boilers have been made mandatory as they are by far the most energy efficient systems and are the most economical to run. There are various types of condensing boiler systems, one of which being the combination boiler. They are popular due to their small size and the fact that they do not need any water storage tanks to operate. Perfect for those living in smaller properties. While combination boilers are popular, they may not suit every home. Larger homes that require a hot water supply to more than one room at a time - where two or more bathrooms are present for example, will need another boiler type. This is because combination boilers can only supply hot water to one room in the house at a time. If you are short on space, or perhaps want to convert your loft space into an extra room, then you should look for a central heating boiler that does not need a separate water storage tank, such as a combination boiler or a sealed, unvented central heating boiler system. An unvented sealed system boiler is a good solution for homes with more than one bathroom, who do not have space for a tank in the loft. This type of system consists of a boiler and a hot water tank in the airing cupboard. Unvented sealed system boilers work on the principle of stored hot water, which means that you will have to wait for water to be heated before you can use it, and you run the risk of running out of hot water. However, you can run multiple hot taps with this system. Most households in Great Britain still use open vent boiler systems. These systems can take up a lot of space as they require one water storage tank in the loft and one water storage cylinder in an airing cupboard. One of the oldest types of boiler, still found in some British homes, is the back boiler. This boiler type is most often found behind chimneys. As back boilers are energy inefficient, cannot provide a high hot water pressure, and take up lots of room, if you are looking to install a central heating boiler, it is not advised that you opt for a back boiler.
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Herb Hoxsie is the author of this article about central heating boilers. Visit British Gas to find out the latest gas and electric prices for UK residential and business customers.
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