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Solar thermal heated air storage unit.

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  • Solar thermal heated air storage unit.

    Hi Guys

    first hello from sunny south africa !

    I have been playing with solar for a while and recently my attention has been fixed on solar water/ air heaters and collectors.I am pretty satisfied with my water heater collector design but found myself wondering how to store hot air for later use,

    in the past i have used a big insulated tank of water to reserve heat from the water based collector, but have not seen anyone trying todo the same with Air. if so is it efficient ? can anyone comment ? another way iv seen is to use stone, glass or concrete as a solar heat storage unit.

    this is done by placing fine stones or broken glass into a insulted container and pumping the hot air from the collector through the medium so as to heat up the medium for later use in the house.

    any comment on this ?
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