910.2 Placement.
MC § 910.2
Floor furnaces shall not be installed in any corridor, in the floor of any aisle or passageway of any auditorium, public hall, place of assembly, or in any egress element from any such room or space. With the exception of wall register models, a floor furnace shall not be placed closer than 6 inches (152.4 mm) to the nearest wall, and wall register models shall not be placed closer than 6 inches (152.4 mm) to a corner. The furnace shall be placed such that a drapery or similar combustible object will not be nearer than 12 inches (304.8 mm) to any portion of the register of the furnace. Floor furnaces shall not be installed in concrete floor construction built on grade. The controlling thermostat for a floor furnace shall be located within the same room or space as the floor furnace or shall be located in an adjacent room or space that is permanently open to the room or space containing the floor furnace. Floor furnaces shall be located so as to be accessible. Floor furnaces shall be installed only in floors of noncombustible construction having at least a 2-hour fire rating, except as where required for one- and two-family dwellings.
