Passive Solar Design
Passive solar design uses heat from the sun to light and power homes in order to minimize or completely replace the use of electrical devices.
Passive Solar - The use of natural heat transfer processes to collect, distribute, and store useable heat without the help of mechanical devices (pumps or fans). Passive solar systems have few moving parts.
Passive Solar Heating
Have you ever noticed how sunlight streaming through a window can make your home feel warmer, even on a cold day? If so, you've seen passive solar heating in action! ...
passive solar - using or capturing solar energy (usually to heat water) without any external power.
passive solar design: a key sustainable building technique. Passive solar design aims to let sunlight into a building in winter to provide warmth, while screening it out during summer.
 See also: Cells, Environment, Liquid, Air, Water
  
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