
T. U. 150,000 B. T. U Horizontal Recommended Minimum 14 ft 12ft 16ft 14ft 18ft 16ft Inclined Recommended Minimum 11ft 10ft 13ft 12ft 15ft 14ft Ensure that there is adequate provision in the building for combustion and ventilating air supply. Installation must meet minimum requirements of applicable codes. When installed in public garages and airplane hangars ensure that minimum clearances specified in ANSI/NFPA 88A or B, ANSI/NFPA 409, respectively, are met; and in no case less than those in the