Cardboard and Duct Tape Solar Oven
by aleutianwind in Workshop > Solar
61128 Views, 341 Favorites, 0 Comments
Cardboard and Duct Tape Solar Oven
![DSCN1628.JPG](/proxy/?url=https://content.instructables.com/F3A/L5F2/HD4VOEA3/F3AL5F2HD4VOEA3.jpg&filename=DSCN1628.JPG)
![DSCN1601.JPG](/proxy/?url=https://content.instructables.com/FRC/TLXI/HD4VOEAD/FRCTLXIHD4VOEAD.jpg&filename=DSCN1601.JPG)
![DSCN1602.JPG](/proxy/?url=https://content.instructables.com/FAU/EYCM/HD4VOEAE/FAUEYCMHD4VOEAE.jpg&filename=DSCN1602.JPG)
![DSCN1603.JPG](/proxy/?url=https://content.instructables.com/FDE/EE6J/HD4VOEAF/FDEEE6JHD4VOEAF.jpg&filename=DSCN1603.JPG)
![DSCN1604.JPG](/proxy/?url=https://content.instructables.com/F9A/BY69/HD4VOEAG/F9ABY69HD4VOEAG.jpg&filename=DSCN1604.JPG)
This instructable is about a solar oven I made out of an old picture frame, two cardboard boxes, some duct tape, aluminum foil, white glue and crumpled newspaper. You will need to find a picture frame. I used regular glass but tempered glass would be better as it gets very hot and could shatter if you spilled cold water on it. I think I used about a 12 x 14 frame, not sure as it was a few years ago. What ever size glass you find will decide the size of the inner box and the outter box should be 2-3 inches larger. You need to cut a hole in the larger box to fit the inside box then crumple up some newspaper and pack between them.
![DSCN1604.JPG](/proxy/?url=https://content.instructables.com/FAF/UXCQ/HD4VOEBZ/FAFUXCQHD4VOEBZ.jpg&filename=DSCN1604.JPG)
![DSCN1605.JPG](/proxy/?url=https://content.instructables.com/F5Y/L153/HD4VOEC0/F5YL153HD4VOEC0.jpg&filename=DSCN1605.JPG)
![DSCN1606.JPG](/proxy/?url=https://content.instructables.com/FSV/FUPY/HD4VOEC1/FSVFUPYHD4VOEC1.jpg&filename=DSCN1606.JPG)
![DSCN1607.JPG](/proxy/?url=https://content.instructables.com/FQM/HVKN/HD4VOEC2/FQMHVKNHD4VOEC2.jpg&filename=DSCN1607.JPG)
![DSCN1608.JPG](/proxy/?url=https://content.instructables.com/F73/PRV9/HD4VOEC3/F73PRV9HD4VOEC3.jpg&filename=DSCN1608.JPG)
Next thing after the box is in the hole and newspaper is packed between them is to tape it up.
![DSCN1614.JPG](/proxy/?url=https://content.instructables.com/FDB/QQAM/HD4VOED1/FDBQQAMHD4VOED1.jpg&filename=DSCN1614.JPG)
![DSCN1613.JPG](/proxy/?url=https://content.instructables.com/FUE/TGT2/HD4VOED2/FUETGT2HD4VOED2.jpg&filename=DSCN1613.JPG)
![DSCN1612.JPG](/proxy/?url=https://content.instructables.com/F3V/ZHX4/HD4VOED3/F3VZHX4HD4VOED3.jpg&filename=DSCN1612.JPG)
![DSCN1611.JPG](/proxy/?url=https://content.instructables.com/FT9/OS83/HD4VOED4/FT9OS83HD4VOED4.jpg&filename=DSCN1611.JPG)
![DSCN1610.JPG](/proxy/?url=https://content.instructables.com/FXK/LN5C/HD4VOED5/FXKLN5CHD4VOED5.jpg&filename=DSCN1610.JPG)
![DSCN1609.JPG](/proxy/?url=https://content.instructables.com/F79/YSO9/HD4VOED6/F79YSO9HD4VOED6.jpg&filename=DSCN1609.JPG)
Next I lined the inside with aluminum foil using white glue. After I tested it I extended the foil out of the box and over the top. I also reversed the door so the tape was on the outside. Sorry I have no photos of the modification. I used two layers of Duct Tape for a hinge on the back of the picture frame.
![DSCN1615.JPG](/proxy/?url=https://content.instructables.com/FL0/FSBA/HD4VOEDU/FL0FSBAHD4VOEDU.jpg&filename=DSCN1615.JPG)
![DSCN1616.JPG](/proxy/?url=https://content.instructables.com/F4U/YN76/HD4VOEDW/F4UYN76HD4VOEDW.jpg&filename=DSCN1616.JPG)
![DSCN1617.JPG](/proxy/?url=https://content.instructables.com/FN5/IKS9/HD4VOEDX/FN5IKS9HD4VOEDX.jpg&filename=DSCN1617.JPG)
![DSCN1618.JPG](/proxy/?url=https://content.instructables.com/FCZ/S3W3/HD4VOEDY/FCZS3W3HD4VOEDY.jpg&filename=DSCN1618.JPG)
![DSCN1619.JPG](/proxy/?url=https://content.instructables.com/FYB/5TJN/HD4VOEE0/FYB5TJNHD4VOEE0.jpg&filename=DSCN1619.JPG)
Next are the reflectors. I made them out of cardboard but corrigated plastic political signs would work perfectly (After the election and with permission) I cut out the cardboard and applied white glue and flipped it over on to a sheet of foil shinny side down. Trim the foil after it dries and add Duct Tape around the edges. The best angle is around 60 degrees off the glass. I was just learning when I made this so my angle was off so I corrected that later, again no pics.
![DSCN1620.JPG](/proxy/?url=https://content.instructables.com/FJG/PQFC/HD4VOEEI/FJGPQFCHD4VOEEI.jpg&filename=DSCN1620.JPG)
![DSCN1621.JPG](/proxy/?url=https://content.instructables.com/FZT/0D44/HD4VOEEJ/FZT0D44HD4VOEEJ.jpg&filename=DSCN1621.JPG)
![DSCN1622.JPG](/proxy/?url=https://content.instructables.com/F7R/GXFN/HD4VOEEK/F7RGXFNHD4VOEEK.jpg&filename=DSCN1622.JPG)
![DSCN1623.JPG](/proxy/?url=https://content.instructables.com/FU7/5OE3/HD4VOEEL/FU75OE3HD4VOEEL.jpg&filename=DSCN1623.JPG)
![DSCN1624.JPG](/proxy/?url=https://content.instructables.com/F1N/Q6QA/HD4VOEEM/F1NQ6QAHD4VOEEM.jpg&filename=DSCN1624.JPG)
![DSCN1625.JPG](/proxy/?url=https://content.instructables.com/FFW/4ARF/HD4VOEEQ/FFW4ARFHD4VOEEQ.jpg&filename=DSCN1625.JPG)
Time to start testing. I tryed different methods of aiming the oven by blocking with rocks, bricks or leaning it against something. Found it didn't do a very good job of baking rolls as they came out hard as a rock but I cooked a chicken breast in it in 2 1/2 hours. I had to tweek the reflectors to get the right angle for the sun to focus on the pan. I poked some holes and used a shoe lace to adjust the light beam.
![DSCN1626.JPG](/proxy/?url=https://content.instructables.com/F30/TM7I/HD4VOEFE/F30TM7IHD4VOEFE.jpg&filename=DSCN1626.JPG)
![DSCN1627.JPG](/proxy/?url=https://content.instructables.com/FII/T6CI/HD4VOEFG/FIIT6CIHD4VOEFG.jpg&filename=DSCN1627.JPG)
![DSCN1628.JPG](/proxy/?url=https://content.instructables.com/FEY/6OYW/HD4VOEFH/FEY6OYWHD4VOEFH.jpg&filename=DSCN1628.JPG)
![DSCN1629.JPG](/proxy/?url=https://content.instructables.com/F6X/XTA4/HD4VOEFI/F6XXTA4HD4VOEFI.jpg&filename=DSCN1629.JPG)
![DSCN1630.JPG](/proxy/?url=https://content.instructables.com/FOZ/VC1V/HD4VOEFJ/FOZVC1VHD4VOEFJ.jpg&filename=DSCN1630.JPG)
![DSCN1639.JPG](/proxy/?url=https://content.instructables.com/FER/8PPJ/HD4VOEFM/FER8PPJHD4VOEFM.jpg&filename=DSCN1639.JPG)
I poked a hole through the back and inserted a probe type thermometer. I had it up to 280 degrees when we was in Arizona on a nice February. We used this oven for a couple weeks then I built "The Solar Baby" a pivoting, gimbled solar oven, I made 2 instructables on Solar Baby 1 and 2, made mostly with recycled parts and reach 350F. This project is what got me hooked on solar cooking. We have been on the road in our motorhome 3 years and only use our propane oven on cloudy days.