Viessmann 200-W B2HA Gas Valve – Pre-Owned | Part No. 7836324

Ignition failure, poor combustion, or inconsistent heating in larger Viessmann 200-W B2HA, B2KA, WB2B, WB2C, 222-F, or 242-F boilers — spanning system and combi outputs from 19kW right up to 105kW — is often the result of a worn gas valve. The Viessmann 200-W B2HA Gas Valve, Part No. 7836324, is the genuine replacement that regulates fuel flow and pressure to support consistent performance across this wide range of higher-output commercial and large-domestic models.

This is a pre-owned part, refurbished and tested for safe operation before dispatch.

Compatible Boiler Models

Tested for Safe Operation. Backed by Warranty.

This 7836324 valve helps restore proper burner regulation, preventing ignition issues and improving energy efficiency across this wide range of system and combi outputs. Supplied with a full 6-month warranty.

Delivery & Returns

Orders placed before 1:00 PM are dispatched the same day via reliable couriers, with standard or next-day delivery available. Returns are accepted within 30 days if the part is unused and in original packaging.

Important Safety Note: Please check the part number 7836324 and your boiler's serial reference carefully before ordering — this valve spans system sizes from 19kW to 105kW, so precise model matching is essential. Gas valves must always be installed by a Gas Safe registered engineer, with a full gas-tightness test before the boiler is returned to service.

Pricing Note: This is a high-output valve covering commercial and large-domestic boiler outputs (up to 105kW), and its source cost (£120) reflects that. We have not forced this into a standard small-parts price band, as doing so would mean selling significantly below cost — please confirm your intended margin before publishing.