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Healthy living in the basement


Our basement used to be damp and musty all the time, so we couldn't use it as a room. Since we have installed the Twinsolar compact 2.0, this situation has changed completely. Now the basement is dry and smells of fresh air, so we can use it properly. We can even store our books and clothes there without being afraid of them getting musty.

The installation of the system was fast and really simple. Ventilator, solar electricity supply, filter, everything is already integrated into the collector. Only the whole for the wall duct has been a bit complex but for this task we had technical assistance from an expert. Otherwise, there are only 4 drills for the wall and the connection of the thermostat.

Prima Klima

German Quality...subsidised by the state

Our SolarAir collectors are being developt already for 30 years in our own factory in Amberg under the highest demands on quality. They are very robust and can be used during decades.


SolarAir collectors by Grammer Solar are subsidised in Germany.


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