A coal heater is a type of heating appliance that uses coal as its primary fuel source to generate heat. It typically consists of a combustion chamber where the coal is burned, producing heat that warms the surrounding area. Coal heaters can be found in various forms, including stoves and furnaces, and are often used in homes and industrial settings. These heaters are known for their efficiency and ability to produce a significant amount of heat. However, they also require proper ventilation to manage smoke and emissions. As a result, users must ensure that their coal heater is installed and maintained according to safety guidelines to minimize environmental impact.