The model St. Croix SCF Revolution Pellet, Corn, Wheat, and Rye-Fuel Central and Supplementary Furnace is constructed of carbon steel. The outer dimensions are 33-inches long, 40-inches high, and 18-inches wide. The firebox and heat exchanger are located in the front with a galvanized steel fuel hopper located in the back top. A 10-inch diameter opening in the top front of the outer enclosure and directly above the heat exchanger is the outlet for the heated air.
