Recent content by GreenSolarGuys

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    Solar Geyser options

    We advise all our clients to use solar to heat ALL your hot water. SANS 10400-XA says 50%. You can get up to 66% (93%η x 71% annual sunshine Jhb) using PV systems. Evacuated tube solar collectors (ETSC) will give you 43% (±60%η x 71%). Flat plate 30% (±[35-50%η] x 71%). Getting your geyser to...
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