297. Stunning Net-Zero Passive House good to -40 with no furnace

Passive House 101 – This amazing net-zero passive house has no furnace and is designed to withstand the northern Canadian winter where temperatures reach near -40 Celsius. We present the anatomy of a passive home that is 90% more efficient, is super-insulated, has no concrete foundation walls and that uses a 450% efficient heat pump water heater not only to provide hot water but also to provide supplementary heat in the cold depths of winter