Reducing Costs-Any tips?

[Jacques#1]

We also saw that most geysers were set at 65 or 70 degrees. You can adjust this to about 55-57 degrees (to kill all the germs)

When you have allot of ice in a freezer it will use 50% more energy to cool the things inside. So defrost your freezer/fridge to save money, adjust geyser.

Something I've always wanted compare but never got the chance....New domestic geysers has a standing loss of around 2.2kW@60DC over a 24hour period. I.e. if you don't open the hot water once, it will cost you 2.2kW...60c/kW...R1.32...30 days around R40. The geyser costs you money if you use hot water.

If you turn the thermostat to 70 DC, you use far less hot water when showering or taking a bath, so the geyser does not have to regain all this energy it lost since it still has quite a lot of hot water in vs. ice cold water topping it up. What do you think??

Apart from wrapping the geyser in a thermal blanket and sealing off the roof space around the geyser, wrapping the pipes......what do you think about replacing the geyser thermostat with a digital one. Surely the digital thermostat would control the temperature much better over the long run not overshooting and undercontrolling, i.e. saving you money as well? Or is the loss negligeable?

I heard a while ago someone invented a way to re-use water expelled from the geyser when initially opening it. Where is this technology? Why does is always take years to get something to the public The therory is that there is a pipe flowing from you tap back to the geyser, which is actuated thermally. If you open the hot water tap, you dont want or need the cool initially heated water, so you don't see any water coming out. The water is pushed back into the geyser (luke warm already compared to cold water) and decreasing the energy needed to heat up the water again. Once the water is hot enough to actuate the valve, it slowly switches and you get only hot water (exactly what you wanted). This saves you water and electricity. No real $ value at first, but over a years usage I believe it would definately be worth while.