Solar collector Hewalex VARISOL DF 20

Solar collector Hewalex VARISOL DF 20

Varisol DF 20 evacuated tube solar collectors represent the premium segment of solar collectors, being among the most powerful units of this type on the market. The use of single-wall Heat Pipe evacuated tubes manufactured by Kingspan Environmental Ltd. ensures particularly high collector efficiency. A distinctive feature of the collector is its modular design.

Applications of the Varisol DF 20 vacuum solar collector

The Varisol DF 20 vacuum collector is equipped with 20 evacuated tubes with a diameter of 65 mm. Heat from the absorbers is directly absorbed through the glycol flowing in the concentric tubes. The collectors are designed for use in both small and large solar systems. High efficiency at high temperatures makes Varisol collectors ideal for systems.
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Brand: Hewalex
Heat loss coefficient a2: 0.0230 W/m²K²
Heat loss coefficient a1: 1.06 W/m²K
Optical efficiency: 77.5%
Collector length: 1950 mm
Collector height: 80 mm
Collector weight: 44 kg
Volume of liquid in the collector: 3.8 l
Net collector area: 2,100 m²
Collector area: 2,760 m²
Collector width: 1420 mm