My DH built a solar oven for me (I wanted one years before I even met him!) It's been showing around 250 degrees with an oven thermometer inside, so today was the first day to cook in it.. I put a boneless chuck roast in my cast iron dutch oven and set it inside the solar oven at half past noon. At five o'clock I took out a perfectly cooked roast, moist, tender, falling apart, and had plenty of drippings/juices to make gravy too. Wooooooooo Hooooooooooooo! I love that this cooked for free, and didn't heat my house up for four and a half hours while cooking (since the temps here are in the middle nineties today!) I feel .. VICTORIOUS! hehe! Tomorrow, I'm going to put my oven thermometer inside the dutch oven and see how hot it gets in there.. since I've only been measuring the temp outside it. (but inside the solar oven) Maybe it gets hotter in there than I realize.. maybe I can even BAKE BREAD in it! Oooh.. who knew that things like this could be like a small adventure?