Vaillant Pressure Sensing Venturi Part (0020135123)

Vaillant Pressure Sensing Venturi Part (20135123). The Vaillant pressure-sensing venturi is located around the fan section. The fan is the mechanism that injects fresh air into the combustion chamber, allowing the gas to be burnt correctly. It also removes the noxious gas after the combustion process is complete. The boiler has safety protocols in place to make sure no gas can be passed through to the main burner if the fan is not working correctly. Fits multiple appliances. Genuine brand new Vaillant product, covered by a Vaillant manufacturer's guarantee.