The 4300 Step Top is designed to allow you to customize the look and feel that works for your space. And as always, we keep easy operation in mind. Using the Automatic Combustion Control (ACC) makes this stove easy to light and allows you to give it a boost of air anytime the fire needs it. And don’t worry, once the ACC is engaged you can just walk away and enjoy your day, it will close automatically in about 20 minutes.