Using the presents of the sky...

Solar-Thermal-Systems
With optimal use of a solar powered hot water system, a saving of up to 70% of the usual firewood consumption can be achieved
Hot-water can be used for shower, washing of cloth, washing of dishes, preparing food and tea / coffee.
On the other side the water is pasteurized and is potable, no risk for diseases especially for children
If you use an additional cold water Tank you have a water-reservoir if no water is coming. z

en Espagnol?