Capable of being designed with a vertical up-fired, vertical down-fired, or horizontal configuration, Model HC-1 utilizes a single helical coil configuration with two passes of flue gas along coil surface. The conservative single-coil design offers sturdy reliability. Features include fuel source flexibility as well as standard or engineered burner configurations for use with both traditional and alternative fuel sources. BACT burners are available to meet all emissions requirements. The generous combustion chamber size ensures no flame impingement. Capacities range from 500,000 to 40 million BTU/hr.