Suspended-type infrared heaters must be fixed in a position independent of ____________________.

Suspended-type infrared heaters must be fixed in a position independent of gas supply lines or electric supply lines to ensure safety and compliance with the NFPA 58 guidelines. This requirement minimizes the risk of damage to the supply lines during the installation, operation, or maintenance of the heater. If the heater were installed too close to these supply lines, it could also introduce fire hazards or compromise the integrity of the connections.

Moreover, ensuring that the heater is not dependent on these lines allows for safer operation. It facilitates maintenance activities without the risk of disrupting the supply of gas or electricity. Additionally, it enables better airflow and heat distribution, which is critical in achieving the efficiency that infrared heaters are known for. Adhering to these safety requirements helps prevent potential accidents, ensuring both the equipment and surrounding areas remain safe for operation.