Heating Replacement Spares have all the VAILLANT boiler parts you may require for your heating appliance, our boiler spares profile for VAILLANT spares are as follows VAILLANT Automatic air vent, VAILLANT Burners, VAILLANT Casings, VAILLANT Control knobs, VAILLANT Diaphragms, VAILLANT Electrodes, VAILLANT Expansion vessels, VAILLANT Fans, VAILLANT Flow switches, VAILLANT Gas valves, VAILLANT Gauges, VAILLANT Heat exchangers, VAILLANT Injectors, VAILLANT Microswitches, VAILLANT Printed circuit boards, VAILLANT Pressure switches, VAILLANT Pressure gauges, VAILLANT Pumps, VAILLANT Temperature gauges, VAILLANT Thermistor sensors, VAILLANT Thermocouples, VAILLANT Thermostats, VAILLANT Transformers, VAILLANT Wiring harnesses etc, when purchasing VAILLANT heating spares from Heating Replacement Spares you can guarantee you will receive genuine manufacturer VAILLANT boiler spare parts.