Household gas heaters generally consist of burners, heat exchangers, fans, control systems, etc. The working principle is that gas mixes with air and burns in the burner, producing high-temperature flue gas. This high-temperature flue gas exchanges heat with water or heat transfer oil through a heat exchanger, heating the water or heat transfer oil.

Household gas heater is a device that uses gas (such as natural gas, liquefied petroleum gas, etc.) as energy to heat water, thermal oil, etc. It is commonly used in household, commercial, and industrial fields, providing centralized heating, hot water supply, cooking, and various other applications.