It’s a good idea to have your home’s heater inspected at least once a year. If it sees heavy use, we recommend twice a year — before and after the colder months. It’s the most reliable way to ensure your home’s heating system works the way it should. Most heater equipment manufacturers suggest a minimum of annual inspections performed by a qualified technician. It’s worth checking your unit’s warranty, as this may even be a requirement to maintain coverage on your heater should something go wrong.