The $5-$6 Solar Oven

Step 2 Step 2: Check

Make sure that the boxes are not riddled with holes or tears. Also check to see that one of the two boxes fit in the other. The top of the boxes should be level with each other, or the walls of the inner/smaller box maybe a bit shorter than the larger box. The dimensions of the smaller box should be 2-3" smaller than the larger box (ie: Larger box= Width x Length x Depth; Smaller box= (Width-2" x Length-2" x Depth)

A hole can lead to a leak in heat and in pressure which means that your food will not cook properly. If necessary, seal with duct tape and extra cardboard.