What would happen if the upper section of the SolarVenti was in the shade?
If, for example, you mount an SV14 in a vertical position on the wall of a house, and a large overhang prevents the sun from reaching the upper third of the panel, this will still be alright. The solar cell is in the bottom/lower half of a vertical panel. The shade from the overhang will result in a slightly smaller amount of heat from the solar air collector in the summer, when the sun is high in the sky. However, in the winter, when heat is really needed, the sun will be low and the SV14 panel will not be in the shade. If you mount an SV7 high up on the wall, under the overhang, this will cause problems. The solar air collector will probably remain switched off most of the time. The solar cell is in the middle of the SV7 panel and if it is mounted high up under a large overhang the cell will be in the shade for too long. The problem can be solved by mounting the SV7 a little further down the wall.
