The largest freestanding wood stove 5700 Step Top delivers high efficiency and low emissions. Featuring exclusive Automatic Combustion Control (ACC) technology, the 5700 Step Top makes starting the fire easy, lengthens burn times, and delivers powerful heat for years and years. The durable steel construction, standard ash removal system and patented four-point combustion technology ensures that the 5700 Step Top will meet the heating needs in any home.