PassivHaus is a super-efficient way to build that reduces the average energy consumption of a house by about 85%.
What is a Passive House?
“A Passive House is a very well-insulated, virtually air-tight building that is primarily heated by passive solar gain and by internal gains from people, electrical equipment, etc. Energy losses are minimized. Any remaining heat demand is provided by an extremely small source.” —excerpt from Passive House website
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