Self Made Plastic Bottles Solar Water Heater

via
Recycled plastic bottle solar water heater is an effective and zero fuel consumption way to heat the water for domestic purposes. It.How to make a water heater with big plastic (PET) bottles. Inside each bottle there is a 3.5 meteres piece of 4 mm drip watering tubing. source/image(PrtSC): mopatin The system is based on the principle of thermosiphon. As the cold water in the bottles is heated by...
https://ift.tt/2UCgoNf