Keep your geyser warm using a geyser blanket and save electricity.
Your geyser is just a big kettle really, holding a lot more water, but basically a kettle. Inside the geyser an element heats the water up to the required temperature. Once it is reached, the thermostat switches off the element.
Because the air around the geyser is cooler, heat escapes from the hot water through the geyser casing into the surrounding air – this results in the water in the geyser getting cooler.
As the water cools below the set threshold, the thermostat then switches the element back on to re-heat the water back to the set temperature and so the cycle continues.
Using a geyser blanket to prevent the heat loss by adding additional insulation is very effective in reducing the number of times this cycle will happen as well as for how long.
This is how a geyser blanket works to save electricity.
The geyser blanket keeps your water hotter for longer.
By providing extra insulation around your geyser, you stop that heat loss from the heated water in the geyser and redirect back into the tank to keep that water hotter for MUCH longer.
Under normal operating conditions, the geyser can lose about 1 degree every hour, depending on how cold the air around the geyser is. Think of it as if you were lying without a blanket on in the middle of winter! You would lose a lot of body heat! You keep that heat in by having a blanket around you…well, the same idea applies here.
By reducing that heat loss you use much less electricity to reheat the water in the geyser.
Without a geyser blanket over a four hour period, your geyser could lose around 4-6 degrees. With a blanket , that loss may only be 1 or 2 degrees. So when the geyser does switch back on , it only uses electricity to heat the water up by 1 or 2 degrees rather than by 4 or 6 degrees.
How much can you save with just a geyser blanket?
The research indicates that using a geyser blanket can save around 10% to 14% of your electricity usage, so if we use the same model as the geyser timers, this would be around R150-00 per month.
By adding a geyser blanket , you can not only save money, but also have hot water long after the geyser has switched off.