Description

Viessmann Expansion Vessel 7837231 (8ltr)

This Viessmann expansion vessel helps maintain safe pressure in your boiler system. The boiler expansion vessel absorbs extra water pressure as your system heats and cools. Part number 7837231 fits the Viessmann 100 WB1C model and supports reliable heating with an 8-litre capacity.

Compatible Boilers

This part is compatible with the following models:

Viessmann 100 WB1C Series

• 19kW System (7499423) – GC 41-819-26
• 26kW Combi (7499425) – GC 47-819-20
• 26kW System (7499424) – GC 41-819-27
• 30kW Combi (7499427) – GC 47-819-21
• 30kW System (7499426) – GC 41-819-28
• 35kW Combi (7499429) – GC 47-819-22
• 35kW System (7499428) – GC 41-819-29

Viessmann 100 WB1HA Series

• 19kW System ErP (7543420) – GC 41-819-36
• 26kW System ErP (7543421) – GC 41-819-37
• 30kW System ErP (7543423) – GC 41-819-38
• 35kW System ErP (7543425) – GC 41-819-39

Viessmann 100 WB1HC Series

• 19kW System (7570671) – GC 41-819-40
• 26kW System (7570672) – GC 41-819-41
• 30kW System (7570674) – GC 41-819-42
• 35kW System (7570676) – GC 41-819-43

Viessmann 100 WB1KC Series

• 26kW Combi (7570673) – GC 47-819-40
• 30kW Combi (7570675) – GC 47-819-41
• 35kW Combi (7570677) – GC 47-819-42

Viessmann 100 WBP JA Series

• 25kW Combi (7501297) – GC 47-819-26
• 29kW Combi (7501298) – GC 47-819-27

Viessmann 100-W WB1C Series

• 30kW Combi (7441745) – GC not listed

If you’re looking for a Viessmann 7837231 Expansion Vessel 8ltr Brand New or any other different Viessmann Expansion Vessel, follow the link provided.

Why Choose This Product?

This boiler expansion vessel ensures pressure stability within your system. Its 8-litre size suits many Viessmann models and offers consistent performance. The refurbished condition means it has been tested for reliability and safety. Choose this part to restore performance while staying cost-effective. Its 12-month warranty gives you added peace of mind.

Delivery and Return

Place orders before 1 PM for same-day dispatch via reliable couriers. Choose from standard or next-day delivery options. Returns are accepted within 30 days if the part is unused and in original packaging. Always use a Gas Safe registered engineer for installation and warranty compliance.