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The Geyser

The Geyser

From the Team

All things considered; it has been a challenging 30 something days. I say something duly because, like most of us I lost count along with sanity on day 30 something. Speaking of which, the losses far and wide have been at its worse in modern history. Life as we know it is seemingly changing into new realities. Perhaps the hardest of all these realities is the bills we continue to be faced with at the month-end. It's almost like an endless supply of numbers all adding up all at once to make the biggest number possible in a thirty one-day cycle.

Fear not guys, Envirolec has got you covered on this one also. Last week we promised you a calculated look, inside the common household appliances.

Today, we look at one of the most extensively used appliances inside our home...’ The Geyser ‘or ‘The Old Geezer ‘ as I like to call it. This chunk of metal sitting inside your roof space – has the potential to drain your meter credits, faster than you can say ‘ Hot Water ‘ A lot has been said aboutThe Geyser, various articles and blogs suggest turning off the geyser when unused or installing a timer to regulate usage ( See our article on this topic on our website www.envirolec.co.za ) Following these simple steps, will certainly see a saving off some sort, and let’s face it... savings, if any are always a good thing!

For a 100 % saving you could stop 100% of showers. (Not recommended though)

Making Cents:

Considering that hot water makeups up at least 40% of your electrical bill, huge emphasis should be placed on starting to reduce this number first. Trust me, I was equally as shocked as you are when I found this out. It is important however to remember that hot water or the process of making water hot is a function used most frequently at home. For example, we wash our clothes and dishes, we take showers and baths as wells at different intervals. Geysers are like kettles, they lose heat, when switched off and the water inside will slowly start to cool down to the same temperature as outside.When a geyser is turned on it automatically switches itself on and off to keep that temperature the same much like switching the kettle back on. Thankfully, our geysers are insulated, so this helps them not to lose heat too fast. Most modern geysers can calculate loss and may have an energy category on the side with a letter from A to G.

Standing Losses = F + xV0.4

I have a 200L tank that is category E – my geyser uses 3.0kWh per day, just keeping warm –regardless of whether I use ANY hot water. If you do not have an energy rating on your geyser, it is probably very old. If you have no clear indication then it is probably a Category G - 200L geyser, it probably uses around 4.1 kwh/per day staying hot. To work out how much your geyser uses you need to just add the two numbers that we have worked out:

5.2 kwh/day for actual hot water (wasted) + 3.0 kwh/day for keeping it hot = 8.2 kwh/day

In a month, we multiple that number of days – 8.2 x 30 days = 246 kwh/month. To convert that toRands, because let us face it all this math is great but what matters most is the money in the bank right?

Now let us multiply by the cost per unit of electricity.

E.g. Last month I paid R700 for 491 units — so that’s R1.425 per unit. So finally, I take 246 kwh/month and multiply by 1.425 to get R350.55. That’s R350.55 each month on hot water,down the drain...

Understanding the cents, will help you better understand how to save, We hope that this Blog piece,apart from taking you back to high school maths, would have also alerted you to a moreEnviro[mentally] cost efficient way of living.

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