Vaillant Gasket, Combustion Chamber Cover 0020195459

Vaillant Gasket, Combustion Chamber Cover 0020195459

Ensure a complete, gas-tight seal on your high-efficiency boiler with the Genuine Vaillant Combustion Chamber Gasket (0020195459).

This specialised gasket sits between the burner flange and the heat exchanger. On newer generation Vaillant boilers (such as the Green iQ and EcoTEC Exclusive), this seal is critical for containing the hot combustion gases. Unlike older rubber seals, these gaskets are designed to withstand intense condensing environments and must be replaced whenever the burner door is removed to prevent Carbon Monoxide (CO) leakage.

Why you need this part:

Safety Critical: A compromised or reused gasket allows fumes to escape, posing a significant risk to the household and potentially melting the boiler's internal casing.

One-Time Use: Vaillant service protocols dictate that this gasket is a "single-use" item. Once compressed, it will not seal effectively a second time.

Genuine Spare: Manufactured to exact tolerances to ensure the correct compression ratio on the burner door bolts.

Technical Specifications:

MPN: 0020195459

Type: Combustion Chamber / Burner Flange Gasket

Compatibility: Vaillant EcoTEC Exclusive (Green iQ), EcoTEC Plus (Newer Gen). Please check your manual as gaskets vary significantly by year of manufacture.

HPS Expert Tip: Do not overtighten the burner nuts when fitting this gasket. Use a torque wrench set to the manufacturer's specified Nm. Overtightening can crush the gasket unevenly, causing leaks, while undertightening risks fume escape.