Geyser Power Consumption In Units
The bigger the size of a water heater higher are the standing losses because more is the surface area.
Geyser power consumption in units. Hours used per day. Geysers just like kettles lose heat through their walls. The unit tested was a kwikot dual 600 200 litres with a 4kw heating element. So basically i use 5 25 electricity credits every day heating up water.
A 100w bulb when run for 10hrs will consume 1 unit of electricity. A gas geyser works out cheaper. The graph above shows the way a geyser uses electricity. So a storage water heater may be rated at 2 kw an instant water heater is rated at 3 to 4 5 kw.
Enter the average power consumption of the device in watts. The geyser supplied hot water to the main bathroom of a family of 4 two adults and two children. Enter the cost you are paying on average per kilowatt hour our caculators use the default value of 0. All four used that bathroom during this test.
The next best thing is to put a timer on the geyser and hope that there will be enough solar to power it. But your geyser uses more energy than that it has to keep the water hot for when you need it. Typical 100 lts water heaters have standing losses of more than 1 unit day 70 lts water heater is close to 0 9 units day and it decreases as the size decreases. So if 15 liters of water is heated in both although the units consumed may be the same but because instant water heater heats it immediately it draws more power from the system i e.
How much energy does my geyser use without me. So a 100watt light bulb left on for ten hours uses 1unit of electricity 100watts x 10hours 1000 watt hours 1kwh as would a 2kw fan heater left on for half an hour. From this you should be able to calculate your electricity consumption per month. So a 3kw electric geyser will consume 1 unit in 20mins.
Cost per unit x geyser usage in mins. It puts more load on the system. Another option is to control the geyser with a relay from the victron bmv based on soc. We are using it in our home.
30 minutes per day is 0 5 power use watts. Enter how many hours the device is being used on average per day if the power consumption is lower than 1 hour per day enter as a decimal. Electricity consumption at least in the uk is measured and paid for by units where one unit is the equivalent of 1 kilowatt hour. That s what we work out next.