Gas appliances are not allowed in garages unless either:
1. The gas appliance is a direct vent heater intended to heat only the garage space and does not communicate its heated air to the rest of the building. The heater shall be installed so that all burner and ignition devices are greater than 18" (457 mm) above the garage floor. The heater shall be located or protected so that it is not subject to vehicular damage.
2. A separate utility room is constructed in the garage with at least one means of access, and:
2.1 The appliance is installed on a noncombustible surface and all burner and burner ignition devices are located 18" (457 mm) above the garage floor.
2.2 The walls and ceiling of the utility room have a fire-resistance rating of not less than one hour.
2.3 All doors to the utility room have a fire protection rating of not less than 45 minutes and are self-closing.
2.4 All air for combustion and dilution air is taken from an area other than the garage in accordance with Article 7.
2.5 All doors to the utility room are clearly marked: DANGER – KEEP DOOR CLOSED.
2.6 All openings in the utility room for pipes, conduit, or ducts are sealed airtight.
2.7 The garage is not heated by the same forced air system that heats the habitable space.
(Amend Coun. J. 9-14-21, p. 35949, Art. IX, § 2)