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Continue to ChatEmpowerhouse: an affordable, net-zero Passivhaus in DC https://amateurearthling.org/2012/12/12/empowerhouse-an-affordable-net-zero-passivhaus-in-dc/
Empowerhouse: an affordable, net-zero Passivhaus in DC https://amateurearthling.org/2012/12/12/empowerhouse-an-affordable-net-zero-passivhaus-in-dc/