We are so confident that, if your current system is over 15 years old, when you invest in a complete 16 SEER or higher efficiency system (furnace, evaporator coil and condenser) provided by us and paid for by you, you will save at least 25% on your cooling and heating bills (we are projecting more 30% to 50% savings) that we will pay you double the difference for a year if you don’t. There is no way you can lose. Your lower utility bills will help make your payments. And we’ll double your savings if you save less than 25%. Simply put, “your new high efficiency system will save you at least 25% on your cooling and heating bills or we will double the difference for one year if you don’t! (Our Trane System – Applies to Complete A/C & Heat or Heat only system-no partial systems).