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https://www.wallshq.com/wp-content/uploads/2019/04/c-2.jpg974650There are lots of types of domestic boiler available, nevertheless the commonest gas boilers are Combination (frequently referred to as Combi), Regular and System boilers. These differ in configuration, so you should know what sort of boiler you will need before contacting an electrical heating or plumbing engineer. This informative article focus on Combi boilers […]