Method and apparatus for single pipe instant warm water supply in buildings

An apparatus for on-demand instant heating and discharging warm water at the desired temperature at the point of consumption in the form of an integrated faucet that allows single-pipe water plumbing systems in buildings and comprises of:

• a) a discharging faucet or pipe [1] connected to a small water chamber [7] through a V-shape ball valve [5] adjusting the flow rate of warm water and having a built-in temperature sensor;
• b) a common handle [2] with two degrees of movement freedom:
• a vertical movement [3] that sets the flow rate of warm water through a V-shape ball valve and a circular movement that sets the warm water temperature through a potentiometer or an electric variometer for a better precision [4];
• c) a small water chamber [7] with a built-in magnetron [8] generating microwave for heating the water inside the chamber instantly and directly to the desired temperature on-demand;
• d) a controller that regulates the electrical energy supplied to the system [8] from a nearby electrical outlet [9] and is wired [6] to the handle potentiometer/variometer [4] and to the temperature sensor built-in the V-Shape ball valve [5];
• e) an on-board WiFi module on the controller board for communicating with nearby portable smart devices through an application and with a central computer through the wireless internet;
• f) a wastewater chamber with a built-in heat exchanger from thermoelectric materials to harvest the heat energy of drained wastewater before flowing into a sewer system;
• g) a single cold-water input passing through the built-in heat exchanger inside the wastewater chamber before entering the water chamber [7];
• h) a wastewater input collecting wastewater from a drain to harvest its heat energy in the wastewater chamber [12];
• i) a wastewater output that will be connected to a building's sewer pipe.