Anyone have the coefficient for the rate of heat absorption per
square foot of black surface exposed to the sun? Or even better:
how big does a passive solar water heater have to be
(a practicable size and rate of heating) to supply 100 gallon of hot
water per day.
        Thanks, Floyd . . .
                Internet:       floyd.williams@bytebbs.com
 * OLX 2.1 TD * An idea is a curious thing. It won't work unless you do.
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