Expansion Vessel 8L

• Expansion vessels, also known as expansion tanks contain water and air from the central heating system.
• Only to be used on Combi boilers
• The purpose of this part is to maintain the right level of pressure in the system and to also provide on-demand hot water for the household
• The expansion vessel is essential as it prevents pressure build-ups and water/gas leaks.

It is recommended that only original Ariston spare parts are fitted to their boilers.