Patent ID: 9213998
Filing Date: 2015-12-15
Classification: F24D,G01K,G05D,G06Q

Abstract:
1. A method for determining the volume of hot water dispensed from a hydrocarbon-fueled hot water heater heated by a burner over a given timeframe, comprising the steps of: measuring water heater inlet water temperature data during a given timeframe at a first predetermined sampling rate; measuring water heater outlet water temperature data during the given timeframe at the first predetermined sampling rate; measuring burner parameter data during the given timeframe at a predetermined sampling rate; determining the volume of fuel consumed by the burner during the given timeframe from the burner parameter data; processing the inlet water temperature data and the outlet water temperature data to calculate the average inlet water temperature and the average outlet water temperature for the given timeframe; and calculating the volume of hot water dispensed during the given timeframe based on the volume of fuel consumed by the burner during the given timeframe and the difference between the average inlet water temperature and the average outlet water temperature; wherein measuring burner parameter data comprises measuring temperature data during the given timeframe, and determining the volume of fuel consumed by the burner during the given timeframe comprises: