Water Heating System with Combination Valve

A water heating system comprising:

• a water tank;
• a cold water conduit configured to receive a supply of cold water;
• a hot water conduit configured to receive hot water from the water tank;
• an output water conduit configured to output water at a desired water temperature;
• a combination valve in fluid communication with the cold water conduit, the hot water conduit and the output water conduit, wherein the combination valve is configured to:
• blend the cold water from the cold water conduit and the hot water from the hot water conduit and output blended water to the output water conduit at the desired water temperature;
• or
• stop a water flow from the cold water conduit and from the hot water conduit when a predetermined condition is met;
• and
• a controller configured to operate the combination valve in a first operation mode and a second operation mode.

A water heating method comprising:

• obtaining, by a controller, a first input associated with a desired water temperature and a water temperature in a water tank;
• obtaining, by the controller, a second input associated with water tank leakage information;
• and
• outputting, by the controller, a control signal to an actuator to activate a combination valve based on the first input and the second input, wherein activating the combination valve comprises activating a first operation mode or a second operation mode, and wherein the combination valve is configured to:
• blend cold water from a cold water conduit and hot water from a hot water conduit and output blended water to an output water conduit at the desired water temperature in the first operation mode, or
• stop a water flow from the cold water conduit and from the hot water conduit in the second operation mode.