Yeah, the more I think about it, the more I think extending the operational temperature
range of the Sanyo isn't what I should be trying to do..
I can see where a water-to-air input coil would really help with cooling,
during the really hot days.. But not so much during extremely cold weather.
Or maybe it would work, if it was really sophisticated.
We just don't have enough
extreme weather to warrant a big investment, both in time and money.
And, there is some question to know successful the range booster would be..
However, there is little question about PV. With a small investment,
I believe that it can be made to work in this application.
(It's been done before)..
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Plus, the very idea of 'free' heating or cooling on sunny days is just plain cool..