When appliances are installed in a pit, what is the minimum distance, in inches, that the sides of the pit must be held back from the appliances?

The minimum distance that the sides of a pit must be held back from appliances is 12 inches to ensure adequate clearance for proper installation, maintenance, and ventilation. This spacing is crucial for safety and functionality, as it allows sufficient room for technicians to work on the appliances without risk of injury or damage to the equipment. Additionally, this distance helps to facilitate airflow around the appliances, reducing the chances of overheating and ensuring efficient operation.

Adequate space also aids in compliance with safety regulations and manufacturer installation instructions, which often specify required distances to prevent hazards associated with electrical components or fuel sources. By maintaining this minimum clearance, you also help to ensure that adequate drainage can occur, if applicable, preventing potentially hazardous situations in the event of leaks or spills from the appliances.