Building to the Passive House standard reduces our buildings» operational energy demand to an optimized extent through passive measures and components such as insulation, airtightness, heat recovery, solar heat gains, solar shading and incidental internal heat gains.View (nypassivehouse.org)
The Passive House remains comfortable principally by optimizing passive measures such as airtightness, insulation, heat recovery, passive solar and internal heat gains and external shading; and in so doing minimizes the role of active heating and cooling systems - hence the term «Passive». (passivehousecal.org)
We've gone to 100F ambient many times simply with passive measures. (resilientdesign.org)