Siting of panels for solar water heating
Joe Fischer wrote:
I was thinking of getting more mass inside the insulation,
masonry only has a specific heat about half that of water, but
100,000 pounds of concrete inside the insulation would mean
that 50,000 BTU would have to be lost for the temperature
to drop one degree.
Are phase-change materials currently a cost-effective way of improving thermal
mass?
Toby
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