Abstract: A solar collector includes a box shaped collection space bounded by a rectangular bottom (10), a frame (12), and an outer rectangular glass pane (14). The box shaped collection space includes therein an inner rectangular glass pane (16) that is disposed in a first direction from the bottom and is separated from the outer rectangular glass pane by spacers (18). An absorber sheet (20) and at least one fluid conducting riser (22) are positioned intermediate of the bottom and the inner rectangular glass pane. At least two ventilation caps (30) extend in overlying relation of respective corners of the solar collector. Inner sides (32I) of the ventilation caps include a pattern (34P, 34Z) of air ventilation passages that provide at least one ventilation channel that extends from outside the collector space to between the inner and outer rectangular glass panes.

Abstract: The invention relates to a solar collector, comprising a rectangular bottom (10), a frame (12), an outer, rectangular glass pane (14) and an inner, rectangular glass pane (16), wherein said distance between inner and outer glass panes (16, 14) is defined by spacers (18), an absorber sheet (20) and at least one riser (22) wherein said bottom (10), said frame (12) and said outer glass pane (14) define a box-shaped collector space (KR), and the bottom (10), the outer glass pane (14), the inner glass pane (16), the absorber sheet (20) and the risers (22) extend predominantly parallel to each other, as well as at least two ventilation caps (30) arranged at a distance to each other, and each cap comprising: a first section (32), abutting with an inner side (32I) against an outer side (32A) of the frame (12) at the upper end (12E) of said frame (12), a second section (34), extending orthogonally to the first section (32), overlapping with an inner side (34I) a terminal upper front face (12S) of the frame (12), wher