Vaillant Burner 0020223029

The Vaillant 0020223029 is a burner assembly used in Vaillant Ecotec Pro and Ecotec VU gas boiler ranges. It sits within the combustion chamber and distributes the gas/air mixture for stable, controlled combustion across the heat exchanger. It is a serviceable combustion component, replaced when flame quality or combustion readings fall outside tolerance.

• Yellow, lazy or lifting flame instead of a stable blue flame
• Soot deposits or discolouration on the burner surface or combustion chamber
• Combustion analysis readings outside the manufacturer's specified range
• Visible corrosion, cracking or distortion of the burner body
• Uneven flame pattern across the burner ports

• Confirm your boiler model and GC number against the fitment list above
• Check whether your appliance is natural gas or LPG, as the LPG variant is listed separately
• Inspect the burner seal and gasket, and replace if disturbed during removal
• Isolate the gas supply and electrical supply before any work on the combustion circuit