Geyser is a commonly used home appliance. It produces hot water that is used for various purposes like bathing, cleaning, washing etc. Water heating is a simple thermodynamic process where a source of energy like electricity, natural gas or solar energy is used to heat water.

There are two heating elements inside a geyser that heat water. If the power supply in your home is fine but there is no hot water from geyser, it indicates that the heating elements have failed. Another reason for no hot water is a faulty thermostat. Thermostat is a device that keeps the temperature of water inside geyser at a desired level, by cutting off the power supply once the desired temperature is achieved.