A must for DIY folks who want to save on energy costs is the
Solar Oven, of course!
It WILL get food up to 300 degrees F in subfreezing temperatures, as long as the sky is clear. Just angle it directly at the sun. I have adjusting pegs on it for that. The only high tech part of the Solar Oven is the reflective film. While we still have civilization, it's cheap and easy to get (stock up!). The rest is some carriage bolts, wing nuts, screws, plywood, some two by fours and lots of food quality cardboard for insulation. NO, the carboard will not catch fire. Don't believe anybody that tells you it will.
I made it in 3D using Sketchup. You need to install free Sketchup software on your computer to view these files sfter downloading them.
The link in the graphic below will lead you to my 3D Solar Oven exploded parts version: 
Link above and additional links with more 3D Solar Oven graphics Sketchup free file downloads for ease of construction and cooking pot capacity info:
3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.
🌞
3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.
🌞
3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.
🌞
3D Warehouse is a website of searchable, pre-made 3D models that works seamlessly with SketchUp.
Here are lots of screenshots to help you visualize how easy it is to make this Solar Oven:
