Does switching your geyser off save electricity - A simple experiment

Budza said:
We should all use this kind of thing. My flat is 50m^2 to have a frikken huge geyser in there is crazy. This thing:
a) never runs cold, it can pump out hot water all day
b) is available on demand- as mentioned, as much as 30% more efficient
c) probably cheaper to install and maintain
d) less/no damage due to bursting
e) saves space

These things have been available for years, yet they have not become the standard in flats. WHY?
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DO you have one of these units?

I can assure you the cost for a setup like yours will be 1 third of the price of a geyser.
And as you rightly say: It is aestetically pleasing, consumes less electricity, saves on water and cost less.
 
onerb said:
DO you have one of these units?

I can assure you the cost for a setup like yours will be 1 third of the price of a geyser.
And as you rightly say: It is aestetically pleasing, consumes less electricity, saves on water and cost less.
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The reasons why it did not become the standard.

Up until recently the quality of these units were not very good and it worked on the same basis as a qeyser just smaller. It had an element which heated a small amount of water very rapidly.

the problem with the element is that it gets a calcium build up, which in turn clogs the unit.

The new technology uses a superimposed lightweight heating chamber. The heating efficiency is as much as 99%.

This changes the whole picture as the new units are very safe with a longer lifespan than the old element type.

It is only my opnion on why it has not become the standard and I could be wrong.
 
And Escom won't like them as the instantaneous electricity usage is higher and not more spread out like geyser.
 
Jab said:
And Escom won't like them as the instantaneous electricity usage is higher and not more spread out like geyser.
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That is also true. But instead of taking hours to reheat it will only consume for the duration of the shower. So 2 showers = 30minutes(15*2)@ 7kw compared to 2 showers = 2hours @ 3kw heating. With a million people taking a shower between 20:00 and 22:00 it will give you 3kw * 1 000 000 * 2hours. The load will be less than having it at once but will be for a prolonged period.

And lets be honest, a 1000 of those heaters won't make a difference. Only when the market get swamped will it have an effect.
 
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