Gas water heaters generally include: casing, supply and exhaust devices, burners, heat exchangers (commonly known as water tanks), gas control devices, water control devices, water gas linkage devices, and electronic control systems. The specific structural components mainly include the shell, surface shell, switch knob, smoke pipe (strong smoke exhaust pipe), fan motor (optional), air pressure switch, heat exchanger, temperature controller, burner, water gas linkage valve, electromagnetic valve, exhaust hood, ignition machine, ion flame sensing needle, pulse generator, bottom shell fixing plate, electric controller, bottom shell, etc.

Energy conservation and emission reduction are the development direction advocated by the country, and products with less energy consumption will be a direction for future development. The development trend of solar water heaters and air energy water heaters as low energy consumption products is good. However, due to some limitations of the product itself, it has certain limitations in meeting consumer needs, so comprehensive energy utilization has become another direction for the development of water heaters. As new energy products, solar water heaters and air water heaters are showing strong development momentum. Due to their unique performance, these two categories are rapidly expanding the market and have a strong response among consumers.