Gas garden heater is a type of outdoor heating device that is designed to provide warmth and comfort to outdoor living spaces such as gardens, patios, and decks. They are powered by propane or natural gas and can produce heat depending on the model.Gas garden heaters are available in a range of sizes and designs, including free-standing models, table-top models, and wall-mounted models. They typically feature a reflector that directs the heat downwards towards the area below, creating a warm and comfortable environment.