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Dark colors (Black), i.e. black body is an object that absorbs all light that falls on it, in turn radiates the Infrared spectrum. The aim to utilize the sun's daily and annual cycles whilst reducing the requirement for active heating and cooling systems. The spectrum of the Sun's solar radiation is close to that of a black body with a temperature of about 5,800 K. About half that lies in the visible short-wave part of the electromagnetic spectrum and the other half mostly in the near-infrared part. Some also lies in the ultraviolet part of the spectrum. Space or water heating design is divided into two groups: Active solar heating uses pumps which move air or a liquid from the solar collector into the building or storage area.
Passive solar heating does not require electrical or mechanical equipment, and may rely on the design and structure of the house to collect, store and distribute heat throughout the building (passive solar building design).
  depending on where you live, this System could pay for itself in just 3 short years, save $$$. Easy-to-assemble, "drain back" , this system that will never freeze, comes with a detailed installation CD and downloadable PDF's, a do-it-yourselfer like you can install this System in a couple of weekends for much LESS! Professional Consultation is available with purchase, this System is designed to integrate into your existing hot water system with minimal soldering, and most connections for the System are quick connect compression fittings that require only a couple of wrenches.
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