Continue reading to learn the different ways to identify a gas water heater from an electric one.
Gas Water Heaters
Gas water heaters run on fuel, usually liquid propane or natural gas. A burner is located at the very bottom of the flue, where gas is ignited by a pilot light. This combustion creates heat, which then transfers to the water. But this combustion also creates harmful gas emissions like carbon dioxide, carbon monoxide, and nitrogen oxide. This is why gas water heaters retain draft hoods, flues, and vents, to push these gasses outdoors and prevent them from back-drafting into the flue. You can also identify gas water heaters by their “chimney” or flue, as well as, the gas line near the bottom of the tank that connects to the gas valve and thermostat control on the front of the tank. The dial gauge should have a “pilot” setting, which also positively identifies it as a gas-powered water heater.
Electric Water Heaters
Unlike gas water heaters that use a fuel source and ignition to heat water, electric water heaters use electricity, generally by means of electrical copper coils. Water inside the water heater tank is cold until the heating element within the unit heats the water up. These heating elements, or coiled wires, can be stainless steel or copper, depending on the make and model water heater. The heating elements are controlled by either thermostats or microprocessor control modules. Electric water heaters generally have two heating elements, both an upper and lower thermostat, as well as, a control circuit and reset limit switch.
If you require water heater repair or service, be sure to call an experienced professional who will provide skilled work at an honest price.