"RichK" wrote in message
...

"HeatMan"


Please educate me - why not? Isn't the efficiency in the compressor
mostly, or even completely?


Actually, some of the efficiency is in the compressor, but most of the
efficiency comes from the coil sizing, both evap and condenser.....

Thanks to you, Stretch, and others, I'm starting to get the picture. Glad
I
did not jump into it.

Is there any way to tell if my old coil is "much too small" to realize the
SEER 10. It easy to overpay and still not get it done right. This is why
I
visit here a lot lately :-)

The guy offering to do the work, said I needed a new coil only if I went
to
SEER 12 or higher. And with that, I'd need a bigger blower fan.

No, not always.
if he also going to install a Thermal Expansion Valve? New Linesets?
Anything like that?


Rich