The Comisa SOLARCOM solar thermal systems provide an
immediate return on the investment and demonstrate the strong
commitment for the environment. They are versatile systems,
designed to cover the needs of every type of application.

The natural circulation systems are the simplest and cheapest
system solution to produce domestic hot water.
They are small solar systems with single and double glazed
flat panels.

The coverage provided by the natural circulation solar thermal
can reach, on average, up to 70-80% of the annual domestic
hot water. The remaining water will then be produced with the
conventional technologies.


The solar collectors, usually placed on the roof, turn the solar
radiation into thermal energy. With the help of the heat transfer
fluid, namely a solution of glycol and water that circulates in
the pipes, the energy is transferred to the boiler. During the
heating, the heat of the heat transfer fluid is transferred to
the domestic water through the use of a heat exchanger. The
cooled fluid returns to the solar collectors where it is heated
again by closing the loop. An adequate automatic control system
monitors the proper operation of the system. A properly
sized system installed is able to reduce the costs associated
with the consumption of hot water up to 80 % in one year.


- +
2,350 2,000
- +
2,150 1,680


The ideal solution for the production of domestic hot water
Solar thermal systems Comisa SOLARCOM provide an immediate return and demonstrate
the strong commitment to the environment. They are versatile systems designed to cover the needs of every type of application.
Horizontal tank:
The quality of the tank, where it is temporarily stored in the hot water, it is very important for the life and the efficiency of the system, for the hot water storage during the night and for the hygiene of the same.
• Direct Glazing (10% titanium) at 860 ° C according to DIN 4753/3 for a crisp (HOVC certification).
• eco-compatible polyurethane insulation 45 kg / m3 to preserve the hot water.
• Closed circuit with anti-corrosion special fluid and antifreeze.

The good efficiency of the system depends mainly on the technology and the quality of the collector which converts the radiation
solar thermal energy.
• selective absorber aluminum (high selectivity: absorption> 94% – emission <5%), of thickness 0.4 mm, with 8 to copper pipes welded to the laser column.
• glass wool insulation to reduce heat losses.
• unique anodized aluminum frame and glass tempered high permeability.
• Collector Efficiency n0 = 0.801.
• Certification Solar Keymark

All kits contain an immersion heater 1.5 kW.
Each kit is delivered on a pallet in a 4-necked: the first is arranged in the collector, in accordance with the kettle provided with electrical resistance and sacrificial anode, in the third of the valves kits, fittings and 2 containers of 1 liter of glycol, in the fourth fixing system provided for both flat roofs and for pitched roofs. The glycol contained in the kit must be diluted with water.

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