Eskom explains power cuts

rakabos3 said:
That is not even remotely relevant as each geyser is different. Ambient temp directly affects your sums and so does insulation of the geyser.
Click to expand...
Its relevant as an average...obviously if you've got an ancient geyser with crap insulation then YMMV significantly.
 
rakabos3 said:
That is not even remotely relevant as each geyser is different. Ambient temp directly affects your sums and so does insulation of the geyser.
Click to expand...
Unless your geyser is outside or has no insulation, it shouldn't matter too much. The bigger difference will be the size of the geyser - and the temperature of the water.

Saw this on the Homebug blog:
Tank-losses.png

It was a little aside on something more about geyser costs: http://blog.homebug.co.za/?p=34

The MOST efficient 200L geyser should only be 'losing' less than 1.0kWh per day just keeping hot. That's all based on SANS standard (SANS 151ed7*) which is based on 48 hours of test keeping the geyser at 70 deg with a 20 deg ambient -- no wind, no moisture, no usage. As someone else said, Your Mileage May Vary (YMMV) - but if it does significantly, you should do something about it -- e.g. turn down geyser, get a blanket etc.

* - It was agreed by manufacturers in 2012, but I haven't seen them on anything for sale yet?! http://www.sessa.org.za/all-news/it...-support-the-national-energy-efficiency-drive
 
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