Description

Viessmann Gas Valve 7828721 100-W WB1B

This Viessmann 100-W WB1B Gas Valve 7828721 ensures reliable gas flow regulation for consistent boiler performance. The boiler gas valve part number 7828721 helps maintain safe combustion and efficient operation. It plays a key role in controlling gas delivery to the burner, helping your system run smoothly.

Compatible Boilers

This part is compatible with the following models:

100-W WB1B Series

• 100-W WB1B 13kW Heat Only – GC 41-819-21
• 100-W WB1B 16kW Heat Only – GC 41-819-22
• 100-W WB1B 19kW Heat Only – GC 41-819-23
• 100-W WB1B 26kW Heat Only – GC 41-819-24
• 100-W WB1B 35kW Heat Only – GC 41-819-25
• 100-W WB1B 26kW Combi (Serial No. 7373061) – GC 47-819-12
• 100-W WB1B 30kW Combi (Serial No. 7373063) – GC 47-819-13
• 100-W WB1B 35kW Combi (Serial No. 7373065) – GC 47-819-14
• 100-W WB1B 26kW System (Serial No. 7373060) – GC 41-819-18
• 100-W WB1B 30kW System (Serial No. 7373062) – GC 41-819-19
• 100-W WB1B 35kW System (Serial No. 7373064) – GC 41-819-20
• 100-W WB1B 13kW Compact (Serial No. 7416307)
• 100-W WB1B 16kW Compact (Serial No. 7416302)
• 100-W WB1B 19kW Compact (Serial No. 7416303)
• 100-W WB1B 26kW Compact (Serial No. 7416304)

If you’re looking for a Viessmann 200-W B2HA Boiler Gas Valve or any other different Viessmann Gas Valve, follow the link provided.

Why Choose This Product?

This Viessmann gas valve restores consistent, safe control of gas flow within your boiler. It supports optimal heating efficiency and extends boiler life. As a refurbished part, it undergoes full functional testing to meet quality standards. The 12-month warranty provides extra confidence. This boiler gas valve is a smart replacement choice for Viessmann WB1B owners.

Delivery and Return

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