The Vaillant 103429 Negative Temperature Coefficient (NTC) Sensor is a genuine replacement for Vaillant ecoTEC and ecoMAX condensing boilers. This essential sensor monitors water temperature to ensure safe, efficient operation and optimal performance of central heating and hot water systems in UK homes.
The Vaillant 0020146732 Gas Section with Venturi is a genuine replacement part for ecoTEC VUW condensing boilers. Designed to regulate gas flow and optimise combustion performance, this Vaillant‑branded component ensures efficient operation and reliability in UK central heating and hot water systems.