Gravikol™ gravity Cordivari solar collector system for 2-3 people with DHW storage: 1 flat collector, 125 liter 1 heat exchanger boiler

Solar collector system

This system does not require a pump, expansion tank, control, BUT: the hot water storage boiler must be located inside the house, higher than the collector.
This can typically be realized in a house with a tent roof, where the collector must be installed close to the eaves and the tank high in the attic. The other option is mounting it on the side wall of the house.
It's simple, great and works for the writer of these lines too!
The assembly does not include the heat transfer fluid, which can be an antifreeze mixture, or even better alcohol (e.g. denatured alcohol), the frame and the roof hook, or the piping.
This system can also be made at home, but the soul of piping, the Gravikol™ solar collector charging and balancing unit, can be found in our products as well you can copy it.  

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Gravikol™

With our solar collector package, the domestic hot water needs of 2-3 people can be met.
This is our package Delivered with 1 2 m2 Italian-made flat collector, support frame with sloping roof, 125 liter 1 heat exchanger Drazice hot water tank.
This system does not require a pump, expansion tank, control, BUT!
The tank has it must be located inside the roof, above the height of the collector, so that the hot water can travel from the solar collector to the boiler by gravity.
Warm water is lighter than cold, so the heat will automatically flow from the top of the collector to the boiler, and the colder, heavier water will automatically flow back from the boiler to the bottom of the collector.
There is no need to worry about the water in the boiler overheating, the liquid in the collector will turn into steam sooner and thus the gravitational flow.

This system can also be made at home, but the soul of piping, the Gravikol™ solar collector charging and balancing unit, can be found among our products, but feel free to copy it!

Orientation of solar collectors:

The ideal orientation: 40-45° to the south - so you can use your solar collector system evenly throughout the year.
In summer, the sun is higher, in case of intensive summer use, it is recommended to place the solar collector flatter, at an angle of 25-30°, e.g. at holiday homes. In winter, the sun is lower, so most of the sun hits the solar collectors at a steeper angle of inclination of 55-60°, at which point the heating will be optimal in winter.
In other words, if you want to use the system efficiently even in winter, it is better to install it at a steep angle, you will still have hot water in the summer.