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Best and Most Cost Effective


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The cost:

Circulation pump                   R   850
15 Tube Vacuum Collector   R 6400
150L Geyser complete         R 3450  with 3Kwatt element, Water outlet, Thermostat pressure relief valve
CPU                                        R   550
200l Hot Tank                        R   220  (from Gumtree)
Piping                                     R 1980

This system uses +/- 6 units per day of which 3/4 units is generated by solar PV.  Therefore the system generates more than enough hot water for the cost of 2/3 units is via Eskom.

The hot tank is always (like in always) above 44C and the main Geyser drops as low as 32C. We use +/- 1000l of water per day (Via sea Reverse Osmosis)
From 30C to 45C takes 5 minutes and 5Watt to heat the water from 30C to 45C.

Any one up for a challenge to beat this?




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