Patent ID: 6161100
Filing Date: 2000-12-12
Classification: F24D,G01D,G01F,G01K,G06Q,Y02B,Y04S

Abstract:
A system for computing a charge for the water related energy use of an individual unit of a multi-unit building wherein the individual unit has a plurality of energy consuming hot water devices which discharge hot water during use, each supplied by a hot water pipe, comprisinga monitor associated with each of the hot water pipes includingmeans for determining when volume units of hot water have flowed through the hot water pipe as hot water is discharged from the hot water device,means for sensing the temperature of the hot water,means for defining the heat energy of each volume unit of hot water flow by multiplying the volume unit of flow by the sensed temperature,a total heat energy totalizator having a current heat energy total that can be read,means for updating said total heat energy totalizator with the heat energy defined for each determined volume unit of flow of hot water, anda transmitter for periodically transmitting the current total heat energy reading of said total heat energy totalizator, andmeans for receiving each transmitted current total heat energy reading of each of said totalizators and periodically computing a heat energy charge for the individual unit.