Introduction:
Limited resources and high prices
of fossil-based fuels have encouraged people to use solar energy
as a heat source for homes. In order to use solar energy for
heating homes we need to have methods to collect the heat in sunny
hours, store the heat in some form, transfer the heat to the home
at night or during cloudy hours.
Solar heated homes also need to be energy efficient, so they can
maintain heat for as many hours as possible.
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