Which document is often required for HVAC installations?

A permit is often required for HVAC installations because it ensures that the installation complies with local building codes and regulations. This document is crucial for maintaining safety standards and ensuring that the system is installed correctly. Permits are typically obtained from a local government authority prior to beginning work on the installation. They serve as a formal permission to proceed with the project and often include inspections at various stages to confirm that work is done according to the established codes. Obtaining a permit protects both the homeowner and the contractor by ensuring that the installation meets all necessary legal and safety requirements.