In the house, there is an isolated water tank containing 4000 liters of water. The water in the tank remains at a temperature of 70 to 80 degrees due to the solar panels on the roof. This ensures hot water in stock for 4 to 5 days. Through a filter, the water from the river will be converted to gray water and high-quality drinking water. High-quality drinking water is made by a purification system through reverse osmosis in combination with a sand and UV filter. The gray water is hygienic but not drinkable. It can be used as flushing and washing water and for the floor heating. The gray water used in the washmachine or dishwasher is already hot. So the washingmachine does not need to heat the water itself. This works with any standard machine. Only a hotfil device has to be connected.
Click here for the video of the warm water collectors.