Simple solar collectors. Warmeverluste ohne Glas.
![](https://www.aivc.org/sites/default/files/default_images/default_image_5.png)
Year:
1987
Bibliographic info:
Sweden, Stockholm, Royal Institute of Technology, Dept of Heating and Ventilation, The Heliograph, No 3, 1987, pp5-10. #DATE 00:00:1987 in German