I don't dispute they may be able to do a decent job with some classic designs
(attached sunrooms etc.) I doubt they've come very close on optimizing the
cost/benefit.
Given the fact that we're using lots more insulation in the walls and that
it's getting hard to even buy a plain old double pane window, who knows what
that does to all the old axioms of glass to mass ratios, etc. And with easy
to use software (like Solar 10 so cheap or like Solar 5.4 almost free) why
NOT use it?
And who's writing the next solar design textbook?
Dave Brook
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