A Bock 14 valve plate assembly is the mechanism that controls the flow of air and water in a Bock 14 water heater. The valve plate assembly consists of a main valve plate, a bypass valve, a check valve, a pressure relief valve, and a safety valve. The main valve plate controls the flow of air and water in the water heater. The bypass valve prevents water from entering the water heater when it is not in use. The check valve prevents water from flowing back into the water heater when it is turned off. The pressure relief valve prevents excess pressure from building up in the water heater, and the safety valve prevents the water heater from becoming over-pressurized.