Commonly, there are two types of heaters according to the power source. One is the gas heater which uses burnt gas for heat production. In the case of electric heaters, electricity is passed through a resistant conductor like those of…

Commonly, there are two types of heaters according to the power source. One is the gas heater which uses burnt gas for heat production. In the case of electric heaters, electricity is passed through a resistant conductor like those of…