From the geometries, Case 5 is worth mentioning, since it is not symmetrical as the other ones, and it is neither aligned in relation to the axis of the air chamber; it is rather out of place at the edge of the building front to conduct the secondary draft.
De las geometrías se destaca la quinta, que no es simétrica como el resto de las mismas, ni está alineada con respecto al eje de la cámara de aire, si no que aparece desplazada al borde de la fachada para conducir la corriente secundaria.