Spring and summer time is a great time to maintain your flagro/ frost fighter heaters.
Make sure you keep the fuel lines shaded from the sun. Sun beaten lines will eventually crack and leak. As the durability of the fuel line changes, you will notice air bubbles on startup. Both flagro and frost fighters will not run properly (or make it through its startup phase) if they are sucking air.
Check out some of our Flagro and Frost fighter replacement ends, or ask about our rebuild kits. Winter is only a few months away!