Cast-iron stove kits are an affordable alternative to expensive heaters and provide an economical heat source. Barrel stoves are ideal for heating small spaces like tents, garages or cabins. Sturdy cast-iron components adapt easily to a 30- or 55-gallon steel drum. High-temperature matte finish, rugged design and simple setup make these an excellent choice for your heating needs. Round, 6" flue for sturdy stove pipe fitting. Requires noncombustible floor and 36" wall clearance. The Double-Barrel Kit includes middle adapters for securely stacking a second barrel stove on top of the first for extra heat. The Double-Barrel Adapter Combo includes everything contained in the Single-Barrel and Double-Barrel Kit. This allows you to set up a Double-Barrel Stove after one purchase. Barrels not included.