This is a high-performance stove that will efficiently circulate heat within your home. Handsome metal cabinet with lift top reveals two cooking lids to facilitate fry pan or tea kettle. Bi-Metallic Thermostat provides automatic controlled combustion for even heating. The unique draft intake system on the Sentry™ coal-burning circulator burns coal safely and efficiently. Large capacity, aluminized steel firebox allows stove to accept up to 75 lbs. of coal. Firebox is lined with firebrick to provide years of service. Heavy duty cast iron roller grates for easy ash and clinker removal. Cast iron feed door and ash door are gasketed to insure a good seal around doors. The Sentry™ coal-burning circulator burns up to 7-9 hours on one load of fuel and generates up to 150,000 BTU / hour. Convenient ash door and large ash tray for easy clean-out and disposal.