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// CODE SNIPPET

920.3 Floor-Mounted Units

California Mechanical Code 2019 > 9 Installation of Specific Appliances > 920.0 Household Cooking Appliances > 920.3 Floor-Mounted Units
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Floor mounted units shall be installed in accordance with Section 920.3.1 and Section 920.3.2.

920.3.1 Clearance From Combustible Material

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 installation 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 clearance of not less than 18 inches (457 mm) from adjacent combustible material. A clearance of not less than 36 inches (914 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 their listing and the manufacturer's installation instructions for the supplementary fuel section of the appliance.
  4. Unlisted floor-mounted household cooking appliances shall be installed with not less than 6 inches (152 mm) clearance at the back and sides to combustible material. Combustible floors under unlisted appliances shall be protected in an approved manner.

920.3.2 Vertical Clearance Above Cooking Top

Household cooking appliances shall have a vertical clearance above the cooking top of not less than 30 inches (762 mm) to combustible material or metal cabinets. A minimum clearance of 24 inches (610 mm) is permitted where one of the following is installed:
  1. The underside of the combustible material or metal cabinet above the cooking top is protected with not less than 1/4 of an inch (6.4 mm) insulating mill board covered with sheet metal not less than 0.0122 of an inch (0.3099 mm) thick.
  2. A metal ventilating hood of sheet metal not less than 0.0122 of an inch (0.3099 mm) thick is installed above the cooking top with a clearance of not less than 1/4 of an inch (6.4 mm) between the hood and the underside of the combustible material or metal cabinet, and the hood is as wide as the appliance and is centered over the appliance.
  3. A listed cooking appliance or microwave oven installed over a listed cooking appliance shall be in accordance with the terms of the upper appliance's listing and the manufacturer's installation instructions. Microwave ovens shall comply with UL 923.

Related Code Sections


920.3 Installation of Specific Appliances, Floor-Mounted Units
Floor mounted units shall be installed in accordance with Section 920.3.1 and Section 920.3.2 ...
California Mechanical Code 2019 > 9 Installation of Specific Appliances > 920.0 Household Cooking Appliances > 920.3 Floor-Mounted Units
921.3 Installation of Specific Appliances, Floor-Mounted Units
Floor mounted units shall be installed in accordance with Section 921.3.1 and Section 921.3.2 ...
California Mechanical Code 2016 > 9 Installation of Specific Appliances > 921.0 Household Cooking Appliances > 921.3 Floor-Mounted Units
917.2.1 Installation of Specific Appliances, Floor-Mounted-Type Unit Heaters
Floor-mounted-type unit heaters shall comply with the following requirements: A listed unit heater shall be installed with clearances from ...
California Mechanical Code 2019 > 9 Installation of Specific Appliances > 917.0 Unit Heaters > 917.2 Clearance > 917.2.1 Floor-Mounted-Type Unit Heaters
917.2.1 Installation of Specific Appliances, Floor-Mounted-Type Unit Heaters
Floor-mounted-type unit heaters shall comply with the following requirements: A listed unit heater shall be installed with clearances from ...
California Mechanical Code 2016 > 9 Installation of Specific Appliances > 917.0 Unit Heaters > 917.2 Clearance > 917.2.1 Floor-Mounted-Type Unit Heaters
917.2 Installation of Specific Appliances, Clearance
installation instructions. Floor-mounted-type unit ...
California Mechanical Code 2016 > 9 Installation of Specific Appliances > 917.0 Unit Heaters > 917.2 Clearance
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