Solar Oven Designs: Which Kind Is The Best?
In most 3rd world places, where electricity and other fuel sources are hard to come by, solar oven designs have been used. Not only are they effective in cooking food, but also for water purification in sunny countries like Sudan.
And like other solar technologies, there’s no reason first world countries should not promote solar cooking at home to help save energy. Although cooking may take four times longer than conventional ovens, no electricity or fuel is used - just the power of the sun.
There have been a variety of unique solar oven designs thought up, but they can be categorized in three shapes: parabolic, panel, and box cookers.
Parabolic Solar Cooker:
As the name suggests, a parabolic cooker is made from reflective material that is molded into bowl. This helps it concentrate the sunlight in one area and effectively cook your food. However, this design typically costs more and it’s rigid structure makes it less practical for traveling.
Panel Design:
Similar to the parabolic design, the panel design focuses sunlight to a single point. However, it is less rounded and made up of a number of small, flat, reflective panels.
The panel shape is not as efficient as the parabolic shape, but it has the advantage of being foldaway, portable, and rather simple to make. These cookers can be found in a number of interesting deigns, but the simplest is by far the one made by folding one of those reflective windscreen blinds.
Box Design:
The third type, a box cooker, operates rather differently to the parabolic and panel cookers. Instead of reflecting light to a central point, it absorbs, traps and intensifies the light to create heat.
This results in the entire area of the box to get hot and be able to cook larger portions of food at a time. This design is by far the simplest to put together - all you need is a black cardboard box with one side covered in tin foil and a sheet of clear perspex or glass on top to hold in the heat.
In fact most of these solar oven designs can be made from household materials in a short space of time. And what you can cook in them is really limited to your imagination - you can bake bread, steam vegetables, make stir-fries and even a roast chicken in them. Another advantage is the amount of power you’ll save - unlike a conventional oven, your cooker needs to be outside to operate, so it put less strain on your kitchen’s air conditioning system.
To think that - according to the Residential Energy Consumption Survey - almost 75% of Americans prepare at least one hot meal at home per day, 33% prepare two or more, a large amount of electricity can be saved if more of us try solar oven design at home.
So get started cooking with solar today. There are a number of commercially available solar cookers on the market. Alternatively you can make your own at home by searching online, where a variety of free solar oven designs with full building instructions are provided.
Other than solar cooking, have you ever wondered how to make your own home solar power for under $200 and start reducing your power bill? If so, then get our free Earth4Energy Report - a sneak peek at the #1 rated step-by-step renewable energy instructions on the internet.
