Live steam locomotives are miniature models of steam-powered trains that operate using real steam. These models are often built to scale and can be powered by burning fuel, such as coal or propane, to heat water in a boiler. The steam produced drives pistons, which turn the wheels, allowing the locomotive to move. Enthusiasts often build and operate these locomotives for recreational purposes, participating in clubs or at railroad parks. Live steam locomotives can vary in size, from small backyard models to larger ones that can carry passengers. They provide a hands-on experience of historical steam technology.