wrote in message ...
Friend lives in Phoenix AZ. Starting to research Heat Pumps.
Looking for reviews and info to find "best" for his area.

Experiences? Links?

TIA

LB

Heat pumps are used through out the Valley of the Sun. They work well for
cooling. Heating function is fine as long as the temps do not go below 40 F.
They do start diminishing on the heat cycle below 45 F. Same is true of
the cooling when the temp gets above 105 F. The design temp for heat pumps
used to be 92 F. I do not know if they have raised that since I am not
working on newer equipment any more.

The most important piece of the puzzle is the installer. 10 seer is 10 seer
no matter whether you by jana-junk (Goodman) or American Standard. ( or any
other manufactures that you want to substitute )

Placement of the condenser can be an issue. I would have the condenser in
the shade or not in direct view of the sun. Every little bit helps.

Scroll compressors cost more and are quieter. If they are looking for the
long run go scroll.
http://198.147.238.24/ac_calc/default.asp

this site will let you play what if to an extent. Make sure that you use at
least 2000 cooling hours. Even if the map shows Phoenix in a area lower.
Cooling season can run from May to October.