Hello, Another Apollo issue in Durham, NC. I'm assuming the whole system was installed in 1995 when the house was built. We replaced our Apollo water heater with a new Apollo unit ($1800) in Oct. 2013 when it started producing rusty water. Now the AC's not working. HVAC service contractor says we need to replace the Evap Coil on the Apollo System (3-ton) in the attic, but since they're no longer making replacement parts, we have to replace the attic system at $6500 (parts + labor). A few years back we had the freon refilled in the backyard unit, and that contractor said the entire system would probably go soon and we were looking at replacing the whole thing for about $7k. I'm wondering: 1) Is there really no way to replace the evap coil? Maybe a compatible part? 2) If the whole system - outside & attic - should be $7k, is $6500 fair for just the attic system? 3) I don't understand how the boiler system and AC are connected, but if there truly are no replacement part options for Apollo systems, are we better off (is it even possible?) to just replace the entire AC system - outside and attic - without replacing the boiler system since we just spent $1800 on the new heater? I'm guessing the outside unit isn't going to last much longer, if it even makes it through this summer. We only plan to keep this house for another 2-3 years, so I'd like an economical option to "get us through." Thanks!