A. You should service your HVAC system once a year/ have an annual tune up
A. One year for all parts & labor and 5 - 10 years for a manufacture warranty
A. Have a service tech check the system
A. Once a month
A. Once a month
A. Once a month
A. Ask a service tech
A. For heating, gas. In Florida, heat pumps are a better choice
A. Schedule an inspection
A. Have an inspection by a qualified tech