We live in Central FL in a 20 year old concrete block home of approximately 1100 sq ft. Our AC/Heat pump unit died in July (it was a 20 year old basic builder quality Goodman). Apparently the last repair guy not only flipped the fan upside down, but we were told he overfilled it with coolant. Anyway, two coils now have holes and since it is such an old system, it needs to be replaced with a new one. Any recommendations? Even without any heat/AC our electric bills avg $250 per month and have only decreased by about $10-$20 since it died.