The Hyprotherm, Front Loading, Forced Air series is a front loading furnace with a larger firebox then any other furnace in its class. These coal or wood furnaces feature fireboxes that are 1/4” thick. The air jacket bottom is also 1/4” thick with the sides and top being 1/8”. All of these front loading furnaces come with large 24” x 24” fuel fill doors and removable ash pans to make ash removal simple. All furnaces come with seamless water jacket, new door latch with lock down vault assembly. They have round steel grates and each furnace is pre wired with only one connection to a power supply and one connection to your home thermostat necessary, making them basically plug and play.