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Continue to ChatToward a Zero Energy Home by David Johnston and Scott Gibson https://amateurearthling.org/2011/01/05/toward-a-zero-energy-home-by-david-johnston-and-scott-gibson/
Toward a Zero Energy Home by David Johnston and Scott Gibson https://amateurearthling.org/2011/01/05/toward-a-zero-energy-home-by-david-johnston-and-scott-gibson/