Solar powered air heater - passes air between external and intermediate glazing and through chamber containing absorbing masses

摘要

The solar heat collector uses circulating air, flowing into a first space (5) between external (4) and intermediate glazing, after which it is deflected through 180 degrees into a second space between the intermediate glazing (6) and the base of the collector (12). Absorber bodies (8) are mounted in the second space. The collector can comprise a flat hollow casing with a transparent glass cover, and intermediate glazing transparent to the infra-red rays from the sun.