C. A draft hood is present on a gas water heater but NOT on an electric one.
A draft hood is a component that is present on a gas water heater but not on an electric one. A draft hood is a metal hood that is attached to the top of the water heater and helps to vent harmful combustion gases to the outside. In a gas water heater, the draft hood helps to ensure that proper air flow is maintained, so that the heater operates safely and efficiently.
An anode rod is a component that is present on both gas and electric water heaters. An anode rod is a metal rod that is installed inside the tank of the water heater to help protect the tank from corrosion.
A dip tube is a component that is present on both gas and electric water heaters. A dip tube is a plastic pipe that is installed inside the tank of the water heater and directs incoming cold water to the bottom of the tank, where it can be heated.
A power cable is a component that is present on an electric water heater but not on a gas water heater. An electric water heater requires a power cable to supply electricity to the heating elements inside the tank.
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