Solar Thermo Tank Gravity System
Cold water enters the main tank through the automatic water refill valve. Once the tank is full, it automatically shuts off using ZERO ELECTRICITY. The automatic refill system is purely mechanical, so there is no expensive and complicated repairs.
When the water inside the solar tubes heats up, it naturally goes up to the upper portion of the tank, the colder water goes down into the solar tubes to be heated until the whole tank reaches maximum temperature.
The water inside the tank automatically circulates without a need for pump. Insulated tank keeps the water hot for up to 72 hours even if the outside temperature is cold or rainy.
No Maintenance. No Electrical Wiring. No Danger.
No Risk. No Monthly Bills.