What kind of heating (BTU/hr) output can be expected at high noon, Dec. 21 (44N latitude) with an ambient temp of 30F?

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22-Jun-2014 05:03 PM

Al Rich

Posts: 16

With a good tilt facing the sun, I would expect to get about 8,000 to 12,000 BTUs per collector in the winter as opposed to up to 20,000 in the summer. I am guessing the ground water is around 45 degrees F so the collector will be starting in a good efficiency range and the ambient will be increasing some over the day.

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