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Glossary Heating / Term

Vent pipe

The vent pipe is the main safety feature for an open vented hot water system and it helps the system cope with the expansion of water. The vent pipe feeds back from the top of the cylinder to the cold water storage cistern to allow for the expansion of the hot water and equalise the pressure within the system.

Permanent link Vent pipe - Creation date 2022-01-31


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