Scorched walls and grease around hood indicate inadequate clearances

When evaluating cooking equipment, you must consider how close the equipment is to combustible materials, such as plywood walls, wooden cupboards or shelving, and grease filters. The list below shows appropriate clearances.

Cooking Equipment Clearances

Listed appliances to combustible material

  • per manufacturer specifications

Unlisted appliances to combustible material

  • minimum of 6 inches

All appliances

  • 24 inches to filters if no exposed flames
  • 36 inches to filters if flames exposed
  • 48 inches to filters for charbroilers

National Fire Protection Association