Life of AC unit? Cost of replacement?
Our AC unit in the backyard sounds like it's on its last legs. It (and the house) is 8 years old and it is used a LOT. Pretty much year-round.
What is the lifespan of these things? Does repair/replacement include whatever is in the attic (I'm not sure what we have - I know it is a "50 ton" air conditioner and we also have gas heating as well, and one thermostat that controls both.) What does a typical AC unit replacement cost/range?