Gas Water Heater With Harmful Gas Monitoring And Warning Functions And The Method of Monitoring And Warning

A method of controlling a gas water heater having a warning function, the gas water heater including a main body and a gas detecting unit, the main body including a gas water heater controller and the gas water heater being disposed in a facility, the method comprising:

• disposing the gas detecting unit at an indoor monitoring point separate from the main body;
• the gas detecting module sensing a gas density;
• the gas detecting module converting the sensed gas density into a gas density value;
• the gas detecting module transmitting to the controller a signal based on the gas density value;
• comparing the gas density value with a threshold;
• and
• the controller initiating a warning after the gas density value traverses the threshold.

A gas water heater, comprising:

• a main body;
• a controller positioned in the main body;
• a gas detecting unit separate from the main body and including a gas sensor, the gas detecting unit installed at an indoor monitoring point and connected to the controller;
• and
• a warning device positioned in one of the controller and the gas detecting unit.

A gas monitoring and warning method, comprising:

• detecting a gas density;
• converting the detected gas density into an electrical signal;
• transmitting the electrical signal to a controller;
• comparing the electrical signal with a threshold;
• and
• producing a warning when the signal exceeds the threshold.