Gas water heaters, including storage and tankless models, are devices used to heat water using natural gas or propane, providing reliable and efficient water heating. They are used in applications such as residential homes, commercial buildings, and industrial facilities, ensuring a consistent hot water supply. Gas storage water heaters offer features such as large capacity, high efficiency, and durable construction, while tankless water heaters provide on-demand hot water and space-saving designs. Their ability to provide reliable and efficient water heating makes them valuable for maintaining comfort and optimizing energy usage.