Boiler Types

There are 3 main types of boilers to suit a variety of heating/hot water requirements. Factors such as the size of your home, how many bathrooms do you have, the age of your existing system and how much space is there available to install a new boiler will all have an impact on making this decision.

Combi Boilers

Combi boilers (combination boilers) are normally the most cost effective option for your home, they require the least amount of space due to there being no need for hot water cylinders and are very compact. Another advantage is that they will provide you with instant pressurised hot water, the boiler will be connected to the cold main supply for your home which will in turn instantly heat the water when there is a demand made.

System Boilers

System boilers will always work in conjunction with hot water cylinders and are usually a best option with homes with 2 or more bathrooms. Unlike older conventional boilers, system boilers contain most of the external components internally therefore requiring less space for installation. There is also no requirement for header tanks on these systems so loft access is not required as they can be pressurised via the cold mains supply.

Conventional Boilers

Conventional boilers (also known as regular/heat only boilers) are typically common in larger homes with more traditional systems where there may already be this type of system in place. Like system boilers they will also work alongside hot water cylinders to supply multiple bathrooms but the heating side will be filled via a header tank normally located in the loft. This means it will be gravity filled and will not be pressurised like combi/system boiler installations.

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