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Expansion Vessels

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Expansion vessels protect closed heating and hot water systems from the effects of fluid expansion and contraction. They are designed to keep the heating system correctly pressurised as water is heated up and cools down again. Typically, combi boilers require expansion vessels as they work in a closed system.

At Wolseley, we’re the trade heating specialists, so you can rely on our comprehensive selection of central heating and boiler expansion vessels to deliver high performance and durability for your customers.

We stock a huge range of expansion vessels, from smaller 4 and 8 litre systems, through to much larger specifications, like 35 and 50 litre vessels. Our selection also includes potable expansion vessels for sanitary sealed systems. As well as stocking industry leading brands, like Zilmet, Vaillant and Worcester, we also have a large selection of Center expansion vessels, exclusive to Wolseley.

Register a trade account with Wolseley today to get access to our innovative product selector tools, PartsArena, rapid reordering and free delivery on all orders to your home or site. You can also click and collect from your local branch.