The clearances specified as follows shall not interfere with combustion air, accessibility for operation, and servicing:
1. Listed floor-mounted household cooking appliances, where installed on combustible floors, shall be set on their own bases or legs and shall be installed in accordance with their listing and the manufacturer's instructions.
2. Listed household cooking appliances with listed gas room heater sections shall be installed so that the warm air discharge side shall have a minimum clearance of 18 inches (460 mm) from adjacent combustible material. A minimum clearance of 36 inches (910 mm) shall be provided between the top of the heater section and the bottom of cabinets.
3. Listed household cooking appliances that include a solid or liquid fuel-burning section shall be spaced from combustible material and otherwise installed in accordance with the standards applying to the supplementary fuel section of the appliance.
4. Unlisted floor-mounted household cooking appliances shall be installed with at least 6 inches (150 mm) clearance at the back and sides to combustible material. Combustible floors under unlisted appliances shall be protected in an approved manner.