Botle Heaters
Hot water is not taken for granted everywhere in the world. It demands a lot of energy and in some countries this often means burning coal or wood. Another alternative is to take advantage of the sun. A normal plastic water botle of 10 liters covered in black can be heated to just above 80 degrees C before the plastic starts to melt down. Even 60 -65 degrees is enough for geting safe driking water. Water heaters does not have to be very complicated. A black botle is enough to get water heated up to 45 degrees. A small reflector at the base can heat it to about 60 degrees C. Leave and forget the botle a few hours, come back and voila! – there is hot steeming water!
This botle heater keeps the botle in a 45-50 degrees position. In this way you can heat the botle from any angel.
A black
Here is another variation:
Heating water demands a lot of energy. Why use valuable electrical energy, when the sun can do the job? In the end of the day you have hot water for every purpose you want. We found that our children enjoy this very much. In our part of the world we are now approaching the dry cold season and tap water is usually quite cold. If the whole familiy wants to take a hot shower, there might not be enough water in one botle, but then we just add more botles.