The Quadra-Fire Millennium wood stoves are designed to deliver high heat output and solid powerful performance with minimum emissions. Featuring Automatic Combustion Control (ACC), the Quadra-Fire range of slow combustion fireplaces offer the best combination of heat and burn time for each load of wood at the optimum efficiency with fully a welded brick lined firebox. The patented four-point combustion technology burns the wood gasses and smoke for a cleaner, more efficient burn than ever before. Two sizes available – 31 and 43.