Part of http://www.sunoven.com/ website shows larger ones attached to a trailers. I think it would be easy to make your oven with cheaper or free parts. I want to do some more research to make a easy design that can reach very high temp. fast and easy. One that could possible make electricity when not cooking food or a thermal electric generator attached to it. More to come Later.
This current design costs 300$.
Why is the GLOBAL SUN OVEN® the world's most widely used solar oven?
People have used the sun to cook for centuries, yet solar cooking has never gained widespread acceptance. Sun Ovens International has taken a concept that has been around for generations, combined it with the most effective materials available, a design with features that take the hassles out of solar cooking, to create the Ultimate Solar Appliance.Innovative Features
One piece collapsible reflectors
The GLOBAL SUN OVEN® can be set up for use or taken down for storage in a matter of seconds. The reflectors literally fall into place at an angle that allows you to maximize the power of the sun.
The reflectors are made of highly polished, mirror-like anodized aluminum that can be cleaned quickly and easily with glass cleaner, and they will never oxidize or rust.
Spill-proof levelator
There is never any need to worry about your food spilling in a GLOBAL SUN OVEN®. While cooking, your food rests on a shelf that self adjusts to always stay level as you refocus.
Easy temperature monitoring
A built in thermometer allows you know the temperature at a glance.
Self-contained leveling leg
As the sun is at different points on the horizon the GLOBAL SUN OVEN® can readily be adjusted to follow it. A simple adjusting leg allows you to choose from 9 angled positions.
Extremely well insulated
A thick batt of non-toxic insulation retains heat. Food cooked in the sun and left in the oven will remain hot for hours. Cold air is held out allowing the GLOBAL SUN OVEN® to be used on sunny days year around regardless of the ambient temperature.
Light weight, easy to carry
The GLOBAL SUN OVEN® weighs only 21 pounds (9.5 kg), folds up like a suitcase, and is equipped with a handle for easy transport.The GLOBAL SUN OVEN® is so easy to use a child can operate it!
