Boiler Installation Bristol. A combi (combination) boiler, is a single unit containing everything required to heat your home and provide instantaneous hot water. This type of boiler, also commonly called a condensing boiler, is an A rated, efficient and small in size making it the most popular choice of boiler within the UK.
A system boiler is typically used with a hot water cylinder but no water tanks (un vented).
This type of boiler provides heated water to your central heating system and to a hot water cylinder, which will then indirectly heat stored cold water within the cylinder to provide hot water at mains pressure to your taps.
A regular boiler such as a Baxi back boiler, will provide heated water to a hot water cylinder but will require a cold water storage tank traditionally in the loft.
This type of boiler and system set up is normally found in older houses.
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