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passive solar architecture 04 jpg
Summary: has a maximum space heating requirement of 15 kWh m²a or 4 755 Btu ft² yr For further detail about the general evolution of the low energy house see zero energy building Passive solar technologies convert sunlight into usable heat cause air movement for ventilation or cooling or store heat for future use without the assistance of other energy
Image Dimensions: 400 x 266
Image originally found here.