Ecohouse 2 by Sue Roaf
Building With Cob
More great priced ecobuilding books here
Vanilla 1.1.4 is a product of Lussumo. More Information: Documentation, Community Support.
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Posted By: borpinFirstly just to check, evac tubes have a smaller collector area than physical area - right? If so then per m2 of roof they are less efficient?
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