At SolarVenti we would like to know how our products are performing in comparison with other air collectors on the market. We have therefore made a simple test with a tube bag with a capacity of 390 liters. See for yourself how much difference there is between the two solar air collector performance:

A Solarventi SV7 model takes 17.5 sec. to fill the bag with air. – Comparing this, it takes the Chinese model 46 sec. to fill a similar bag of air – and with no efficient pressure.

Test results for SolarVenti SV7, SPAH 3 (GS30), Sol Fresh 30 (GS20)

On a winter day in Denmark, there is only an average of three hours of sun a day. When the solar air collectors only work when the sun shines, it is very important that the ventilation capacity is high.