Outside air often contains comfortable levels of warmth and moisture. Air vents would enable us to use it. When too hot or too cold, we can seal the vents while our insulation protects us from the extremes. How can we still enjoy the vitality of airs born of plants and oceans then? I find the solution in heat exchanges. These can cool and warm the in-coming air as needed using the out-going air.

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Chapter Seven - The House of Life - Making Monsters of the Miniscule.        

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