 even professionally cleaning the outdoor coil while they're there. At the end, you get a full, written, detailed report of how your system is actually operating. All that for just $39. Again, call them at 918-550-5079. And ProthermalHeatingAndCooling.com is the website. Check out the Prothermal Plus whole home maintenance membership. It's $99 per year. It doesn't matter if you have one system or three. They're all covered. You get two system checks per year, a 15% discount on all parts and refrigerant, and 48-hour priority service. We give that away.