On Apr 6, 9:03*am, "Steve" wrote:

If it has a leaky evap coil, your already done... time to replace it.
Generally, if the system is more than 15 years old, you would be better
served by replacing the system. Here in south Mississippi, the energy
savings alone will normally give an ROI of 4 - 5 years.....


Yeah, that's a factor I've been hearing, the efficiency is supposed to
be a lot better on newer units.Of course, due to minimal usage, I've
never had a power bill over about $130. That's in the dead of summer.
Never running it, the bill's around $70. So at most it's costing me
around $2/day to run.

The other consideration is this tax break that's currently available,
and a modest credit from the power company.