Here is an instruction manual on how to build a simple pressurized alcohol burner from tin cans.  While building such burners are common from aluminum soda cans we found that aluminum soda cans were not available to people we visited in Kenya.  Using another material was the inspiration of this design.  It is becoming the "microwave" in the bush!!  I hope it is helpful to you.  Click on the link below to open the manual.

The Kenya "Spirit" Burner