The solar manifold is just a given device. Other names of the installation — a solar heater in water, helio heater, etc. The essence remains the essence. Sun rays carry very great energy inside themselves and it will be necessary to gain this energy, save and accept this energy. And all these functions are controlled by solar collectors. A little physics. Approximately on the territory of Ukraine, 1 square M is 3 kWh of the Sun Energy. Little, but also a lot. 10 meters of the plane will change the night of the work of your boiler, permanent work!!! The solar water heater is capable of preparing within 700 liters. water temperature 60 degrees. And this is already a lot!!!