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Solar How To - Building a Solar Box Cooker


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									Solar How To - Building a Solar Box Cooker
Solar cooking is interesting to many people because it not only saves
money, but is also environmentally friendly. Building a solar cooker is
not as complicated as it may seem, especially if you follow the
instructions in this solar how to. There are many types of solar cookers,
and the most simple to construct is the solar box cooker.
A solar box cooker requires very little monetary investment and could be
built in just one afternoon. The basic materials required for a solar box
cooker are two cardboard boxes, one sheet of cardboard, a small roll of
aluminum foil, a bottle of white glue, one can of flat-black spray paint,
a piece of stiff wire and a clear plastic cooking bag. (A thin sheet of
glass could be used instead.)
To construct the solar box cooker, the directions are as follows:
1. Fold the lids of the box that will be used for the bottom so they are
closed. Place the second box on top of the closed lid, and trace around
the second box. Each of the cardboard boxes should be at least 15 inches
by 15 inches. The second box should be slightly smaller than the first
box, which will be used for the base.
2. Decide how deep the cooker should be. A good way to measure is to use
a pan or kettle as a guide. Mark the inner box with the depth of the pan
or kettle. Use a sharp knife or box cutter to make slices down the sides
of the inner box. Fold each side of the box down at the slits, creating
extended flaps.
3. Glue aluminum foil to the inside of both boxes and their flaps.
4. To keep the inner box from moving, crumple newspaper and place it
inside the outer box. The inside box should now fit snuggly into the
outer box. Fold the flaps of the inner box over the outside of the outer
box. Next glue them onto the outside of the outer box.
5. A base pan must be constructed for the bottom of the inside box. Cut a
piece of cardboard the size of the bottom of the inside box and spray
paint it black. Allow the cardboard to dry. Then glue this piece to the
bottom of the inside box. This is the base the pans will rest on when
6. A cover must be made for the cooker. Cover the cooker with a piece of
corrugated cardboard. Use your box cutter to make slits along the side of
the cardboard so flaps can be made. Fold these flaps inside to create the
lid. Glue the flaps in place if necessary.
7. Slice the inside of the lid along three of the edges of the cooker.
This will create a flap that should be the size of the inside of the
cooker. Glue aluminum foil to the inside of this flap. Be sure to leave
one side of this flap secure to the cover.
8. Slice the plastic oven bags open. This will prevent condensation from
forming inside the bags. Glue the bags to the underside of the newly
constructed lid. The lid should now have plastic covering the hole where
the flap was made.
9. To prop the aluminum foil covered flap open, insert a piece of stiff
wire (a portion of a wire hanger works best) into one side of the
corrugated lid. This cover can now be removed and replaced each time the
cooker is used. It will both insulate the food being cooked and create an
additional reflective surface to trap the suns energy.
The solar box cooker is the simplest solar cooker to construct. It can be
placed anywhere that receives direct sunlight. The solar box cooker is
ideal for homeowners, renters or campers because it requires no
electricity and is portable. solar box cookers are also efficient ways to
cook food while using the most abundant natural resource: solar energy.
Video instructions for your next solar project. Solar How To. information
is free and available to you.

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