Boire froid - The Coolgardie Safe & Zeer Pot. En cuisinant avec le Soleil. Solar box oven. A large mojority of the materials I used were gathered from friends who had them lying around or who wanted to dispose of them.
What I used:Tools A circular saw and its guiding rail A glass cutter A jigsaw (with metal cutting blade) A compact drill A grinderMaterials 8 mm thick plywood 18 mm thick plywood glass pane from a picture frame Glass or arcylic or stainless steel mirror Silicone caulk Metal bars Screws 2*4 or other wood pieces A length of seal (strip seal for doors) High termerature black spray paint. "The Solar Baby" Solar Oven, cooker. Ten solar cookers that work at night. The solar cooker is finally getting a practical overhaul.
With few exceptions, solar cooking has been a disaster that happens again and again to well-meaning people in developed countries. It is such a clean, shiny idea that feels like the future until you actually build it. Then its flaws jump out. It only works for a few hours in the middle of a sunny day, but not at night or in the mornings when people actually want to cook.