Heating, lighting, ventilation
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Solar Heating in Cold Regions
This book is primarily a technical guide to the design and production of solar installations in regions where heating is an issue of utmost importance. This book is written mainly for technicians, architects and designers who are interested in solar heating systems in cold regions of developing coun...
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Rural Lighting
Nearly one third of humanity still live in semi-darkness after sunset, no better off than in earlier centuries, mainly because they are beyond the reach of mains electricity. The traditional forms of lighting such as candles, oil lamps, kerosene pressure lamps, butane lamps tend to be inefficient an...