Viessmann Expansion Vessels

Viessmann Boiler Expansion Vessels

Viessmann expansion vessels are essential for regulating boiler pressure, preventing leaks, and protecting critical internal components. Our range includes models compatible with popular Viessmann systems ideal for maintaining safe, reliable, and energy-efficient boiler performance.

We stock both brand-new and expertly refurbished Viessmann expansion vessels, each fully tested and comes with 12-months warranty. Designed for easy installation and long-lasting durability, these vessels offer a smart solution for professional engineers and homeowners alike.

Viessmann 200 WB2B Combi Expansion Vessel 7826473
£89.99
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Viessmann 100 WB1C Expansion Vessel 7837231 (8ltr)
Sale!
Original price was: £84.99.Current price is: £49.99.
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Viessmann CRI 8 Expansion Vessel 7823844
£89.99
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Viessmann Vitodens 100-W WB1B Combi Expansion Vessel CRI 8 7828646
Sale!
Price range: £57.86 through £87.90
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Viessmann Expansion Vessel 8ltr 7837231
Sale!
Original price was: £118.99.Current price is: £78.99.
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With over 10,000 heating spare parts in stock, we’re your one-stop shop for new and refurbished boiler parts, heating components, and replacement spares. We offer fast 24-hour delivery across the UK to keep your systems running smoothly.