Saskatchewan Conservation House, 1977, in the Tyee Monte Paulsen of the Tyee describes a house built in 1977 by the Saskatchewan Research Council: It was built without a furnace. Instead, the northwest Regina home features a nearly airtight envelope with R-40 wall insulation and R-60 roof insulation. This enables a small hot water system to heat the house, even through the winter. The house is cube-shaped to expose a minimum amount of exterior surface area per square foot of floor space. That sounds pretty much like our beloved Passiv… Read the full story on TreeHugger
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The Passivhaus Had North American Ancestry