Description
Viessmann 200-W B2HA Gas Valve
This Viessmann gas valve is a key part of your boiler’s safe and reliable operation. The boiler gas valve controls fuel flow and pressure to support consistent performance. Part number 7836324 fits select Viessmann 200-W B2HA models and helps restore precise burner regulation.
Compatible Boilers
This part is compatible with the following models:
200-W B2HA Series
• 19kW System – Serial No. 7454868
• 26kW System – Serial No. 7454869
• 30kW System – Serial No. 7454871
• 35kW System – Serial No. 7454873
• 45kW System – Serial No. 7538256
• 49kW System – Serial No. 7571049
• 60kW System – Serial No. 7571048
• 80kW System – Serial No. 7538258 / 7571046
• 99kW System – Serial No. 7571045
• 100kW System – Serial No. 7538259
200-W B2KA Series
• 26kW Combi – Serial No. 7454870
• 30kW Combi – Serial No. 7454872
• 35kW Combi – Serial No. 7454874
200-W WB2B Series
• 45kW System – Serial No. 7194486 / 7373009
• 60kW System – Serial No. 7194487 / 7373010
200-W WB2C Series
• 105kW System – Serial No. 7424191
• 45kW System – Serial No. 7438087
• 60kW System – Serial No. 7438089
• 80kW System – Serial No. 7424189
• Combi 26kW – Serial No. 7424987
• Combi 30kW – Serial No. 7424989
• Combi 35kW – Serial No. 7424991
• System 19kW – Serial No. 7424985
• System 26kW – Serial No. 7424986
• System 30kW – Serial No. 7424988
• System 35kW – Serial No. 7424990
Viessmann 222-F & 242-F Series
• 222-F FS2B 26kW – Serial No. 7438013
• 242-F FB2B 19kW – Serial No. 7438010
If you’re looking for a Viessmann Gas Valve 7837918 Gb-Nd 055 E01 19/26 G20 or any other different Viessmann Gas Valve, follow the link provided.
Why Choose This Product?
This Viessmann gas valve is fully refurbished and tested for safe operation. It helps your boiler maintain proper combustion and fuel use. By replacing a faulty boiler gas valve, you prevent ignition issues and improve energy efficiency. Every part comes with a 12-month warranty and is ready for immediate installation. It’s a cost-effective way to restore full performance without needing a full replacement boiler.
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.
Frequently Asked Questions
1. What does the Viessmann 200-W B2HA Gas Valve do?
The gas valve regulates the flow and pressure of gas to the burner. This ensures proper combustion, stable ignition, and efficient boiler operation. Without a functioning valve, the boiler may experience performance issues such as ignition failure or inconsistent heating.
2. Which boilers are compatible with this gas valve?
This part fits multiple Viessmann boiler models, including 200-W B2HA, B2KA, WB2B, WB2C, 222-F, and 242-F series. It covers a wide range of system and combi outputs from 19kW to 105kW. Always check the part number 7836324 and your boiler’s serial reference before purchasing to ensure compatibility.
3. Why should I replace a faulty gas valve?
A faulty gas valve can cause problems such as poor ignition, low efficiency, or complete boiler shutdown. Replacing it helps restore safe and efficient operation, reduces energy waste, and prevents further strain on the boiler components.
4. How quickly can this part be delivered?
Orders placed before 1 PM are dispatched the same day. You can choose between standard and next-day delivery options. Delivery times may vary depending on courier service and location.
5. Who should install the Viessmann gas valve?
For safety reasons, installation should always be carried out by a Gas Safe registered engineer. This ensures proper fitting, compliance with safety standards, and protection of your boiler warranty.













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