Viessmann 7836178 Burner Gasket 321894-708 5-ton capacity and optimized for

5-ton capacity and optimized for R-410A refrigerant

What is the difference between 8H and 8HS inserts

We recommend verifying the condition of the existing perimeter seal or applying a fresh bead of high-temp RTV or an OEM gasket to prevent air bypass and water leaks after installation

this model is designed for R-134a

the module plugs into a standard 120V outlet and includes all necessary wiring harness components and self-tapping screws for a secure powered anode installation

Viessmann 7836178 Burner Gasket 321894-708 5-ton capacity and optimized forEnsure a high integrity combustion seal with the Viessmann 7836178 Burner Gasket, a critical service component for Vitodens 200 W condensing boilers. Measuring exactly 299x5. 6mm, this precision engineered OEM Viessmann part is designed to withstand the extreme thermal cycling and high pressure environments found in B2HA and B2HB series burners. As a seasoned technician knows, a compromised gasket is often the culprit behind flue gas leakage or