Approprite Technology at it’s best. A detailed look at five heat capturing technologies and how to build them. This booklet, now in its 3rd printing, has a number of tried and true, fuel-efficient stove designs you can build yourself with simple materials. Step by step instructions on how to build a rocket stove, a rocket bread oven, a haybox cooker, a telkes solar cooker, and a conical cooker.
Capturing Heat 
Approprite Technology at it’s best. A detailed look at five heat capturing technologies and how to build them. This booklet, now in its 3rd printing, has a number of tried and true, fuel-efficient stove designs you can build yourself with simple materials. Step by step instructions on how to build a rocket stove, a rocket bread oven, a haybox cooker, a telkes solar cooker, and a conical cooker.