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

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 pipeline.

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 you can also copy it.  

More: www.napcsap.hu

More information:

The Gravikol™ solar collector package

The domestic hot water needs of 2-3 people can be met.
This is our package 1 piece 2 It is supplied with a horizontal hot water tank with m2 flat collector, 125 liter, 1 heat exchanger and electric heating.
the system does not require a pump, expansion tank, control, BUT!
The tank must be located inside the roof, above the height of the collectorso that the hot water can travel by gravity from the solar collector to the boiler.
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.

If the vertical boiler does not fit, look for horizontal heat exchanger tanks among our products!

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: south 40-45° - so you can use your solar collector system evenly throughout the year.

In the 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 the steeper, 55-60° angle of inclination, then in winter heating is optimal.
In other words, if you want to use the system effectively even in winter, it is better to use it at a steep angle install, you will still have hot water in the summer.