The Sundiner–A Groovy 1960s Era Solar Cooker
...with fire–which is probably why the Sundiner never caught on. More recent solar box ovens that I’ve seen, both commercial and homebrew, have shelves with adjustable angles, making it easier to use them as crock pots. Nevertheless, I admire the efficiency of the design–the legs also double as a handle and the panels unfold and snap together in seconds. It’s easy to aim. The instructions are even printed on the back of the panel that covers the ref...