[Kimmers]

I just asked my favorite HVAC dude, my husband.

He said it is an old unit and you would be better off replacing with a higher efficiency unit and you will likely have a payback within 3 years if you buy a higher efficiency unit.

Remember the higher the SEER rating the more efficient it is.

Now days you need at least a 13 SEER. We just bought a 17 SEER, Mitsubishi that is amazingly quiet and does a great job.

[LouAvul]

the higher the SEER rating the more efficient it is

The SEER is 16-16.9.