The answer to 'how often to replace inspection' is that HVAC systems generally require an annual inspection and maintenance service. This includes checking the air filter, cleaning the coils, inspecting the ductwork, and ensuring all components are functioning properly. Regular inspections help identify and address any issues before they become major problems, improving the system's efficiency and extending its lifespan.
It's recommended to have a professional HVAC technician perform a comprehensive inspection and tune-up once a year, typically before the start of the heating or cooling season. This allows them to catch any problems early and make necessary adjustments or repairs to keep your system running at its best.