Abstract: A solar collector module includes a first pan shaped absorber, a smaller second pan shaped absorber adapted to be received in the first absorber, and a first plurality of heat exchanger fins affixed to the bottom of the second pan for defining a baffled, mazelike fluid flow path between the first and second absorber pans. A fluid inlet is provided at one end of the fluid flow path, while a fluid outlet is provided at the other end of the fluid flow path. A second plurality of heat exchanger fins extends upwardly from the second absorber pan, and a first insulative dead air space is defined between the second pan and a first transparent cover supported atop the upwardly extending fins. A transparent grid mounted atop the first transparent cover supports a second transparent top cover, defining a second insulative dead air space between the first and second covers.