This video shows how to fit an external expansion vessel to a central heating system. If the built in expansion vessel is faulty in the boiler you need to get a registered gas engineer to replace it, but instead you can fit an external one yourself as you only need to tee into the central heating return pipe work
How to bleed a radiator or central heating system. If the radiator is hot at the bottom and cold at the top then it probably requires bleeding.
Category: Central heating Videos
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