The Vaillant 0020146731 Gas Section with Venturi is a genuine replacement fuel control assembly engineered to regulate the flow and mixture of gas and air delivered to your boiler’s combustion chamber. This integrated unit combines the precision gas valve with a matched venturi to help achieve the correct air/gas ratio, supporting stable ignition, efficient combustion and smooth modulation of heat output. Built-in safety shut-off features protect against unsafe gas delivery, helping maintain safe, reliable boiler operation.

This gas section with venturi is compatible with Vaillant ecoTEC Pro VUW and ecoTEC Pro series boilers that specify part number 0020146731 in their technical documentation. To ensure correct fitment and dependable performance, always verify that the part number matches your existing gas section or consult your boiler’s service information before installation, as gas control assemblies and venturi arrangements vary between models.

Supplied ready for direct replacement, the 0020146731 Gas Section with Venturi integrates with the boiler’s existing gas inlet, venturi housing, control wiring and mounting points when installed by a qualified Gas Safe engineer. Choosing this genuine Vaillant component helps restore proper fuel regulation, improve combustion stability and support dependable heating and hot-water performance in compatible ecoTEC Pro VUW and ecoTEC Pro boilers.