Difference between revisions of "The Solar Funnel Cooker"

 
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Latest revision as of 10:17, 31 October 2019

Tutorial de avatarPaul | Categories : Food, Energy

Construction of the solar funnel cooker, safe, efficient, easy to build and to use.

License : Attribution (CC BY)

Introduction

Very cheap, easy and efficient cooker.

Parabolic cooker can be dangerous (causing fires) and complicated to make. This cooker gave results comparable to the ones given by a "cookit" cooker and a solid wooden cooker.

French version : http://solarcooking.org/francais/funnel-fr.htm

Portuguese : http://solarcooking.org/portugues/funnel-pt.htm

Spanish : http://solarcooking.org/espanol/funnel-span.htm

Thanks to Tom Sponheim to let us share this great technology!

Materials

  1. A piece of flat cardboard, about 800*1600 mm. (The length should be just twice the width. The bigger, the better.)
  2. Ordinary aluminum foil or safety blanket
  3. Three wire links-- or small nuts and bolts, or string to hold the funnel together. Here we used a wire made out of a water bottle
  4. For a cooking vessel, I recommend a glass jar, type "le parfait" used here. The cooking jar (or vessel) should be painted black on the outside.
  5. A block of wood is used as an insulator under the jar. I use a piece of 10cm square x 5cm thick.) One square piece of wood makes a great insulator.
  6. A plastic bag is used to go around the cooking-jar and block of wood, to provide a green-house effect. 

Tools

*Cutter

*A glue such as white glue, and water to mix with it 50-50. Also, a brush to apply the glue to the cardboard (or a cloth or paper towel will do). Or, some may wish to use a cheap "spray adhesive" available in spray cans. 

Step 1 - Cut a Half-circle out of the Cardboard



Step 2 - Form the Funnel


Step 3 - Glue Foil to Cardboard


Step 4 - Join side A to side B to keep the funnel together


Step 5 - Painting the jar



Step 6 - Final steps


Step 7 - After Cooking

Step 8 - Helpful Hints

Comments

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