Which of the following is not a requirement for oil appliance installation?

Employing unlicensed workers is not a requirement for oil appliance installation. In fact, it is essential that professionals conducting oil appliance installations are properly licensed and trained to ensure safety and compliance with regulations. Licensed workers possess the necessary knowledge and skills to perform installations according to established safety standards and technical guidelines.

On the other hand, following safety guidelines, performing a final inspection, and ensuring compliance with local codes are critical requirements. Safety guidelines help to prevent accidents and ensure the safe operation of oil appliances. A final inspection confirms that the installation meets all operational and safety criteria before the appliance is put into service. Compliance with local codes ensures that installations adhere to regional regulations, which can vary widely and are put in place to safeguard public health and safety.