Boiler Expansion Vessel Replacement

Steam boilers are simpler systems that lack several components found in hot water boiler systems such as the circulating pump expansion tank and regulators for water pressure and temperature.

Boiler expansion vessel replacement.

In some cases the boiler needs to be taken off the wall in order to fit a new expansion tank and this involves disconnecting the flue. Pumping up a gas combi boiler expansion vessel. An expansion tank is not found in steam boiler systems which create heat by circulating hot vapor rather than hot water through the pipes and radiators. Some internal expansion vessels can be very difficult to replace though improved designs on newer boilers now generally make it easier.

This vessel contains air and water from the central heating system and its purpose is to maintain the right level of pressure in the system. So if you need to replace this part of your boiler make sure you call a heating engineer. First we switch off the boiler from the mains and shut the flow. Pumping up the expansion vessel in a combi boiler.

Repressurising the expansion vessel. If you have a combi boiler you will have an expansion vessel. This video shows you step by step on how to change an expansion vessel on a worcester boiler. Worcester bosch expansion vessels also sometimes called expansion tanks or pressure vessels are a component fitted internally to worcester bosch combi type and sealed system boilers and it s function is to compensate for the expansion of hot water as water will expand when heated producing a rise in pressure within the sealed or closed system.