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Old 11-11-13, 09:27 AM   #10
skyking
Helper EcoRenovator
 
Join Date: May 2011
Location: Western Washington
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you're from Portland, so you know what happens around here. We get serious bad spells with no sun.
I have kicked it around all morning. I think the thing to do is build wall air collectors where I can, and put HDPE tubing under the standing seam metal for a liquid based collector. I was going with a dark green roof so that will deliver some heat OK.
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