- 2 large boxes (one must fit inside another)
- aluminium foil
- shredded paper
- 2 large pieces of poster paper
- turkey size oven bag
- oven themometer
- black pot to "cook" food in
- several pieces of black construction paper
- non toxic tape and non toxic glue
We then lined poster paper with aluminium foil. Again just like with the box we secured the foil to the poster paper with the aid of glue and tape.
The pieces together look something like this:
You'll notice that when we lined the interior box we made it go over the shredded paper and taped it to the outer box. You should also note the box under it that is helping to angle the box to face the sun. You want to angle in such a way that there is NO shadow inside the box where your pot will sit.
After the oven is made you just put a small oven safe pot (black or dark color is best) inside a oven bag. The bagged pot goes into the "oven". We also placed a oven thermometer inside the oven bag on the lid of the roaster pan we used. This was so we could see how hot it really got. We decided to test it first, before we tried to cook anything.
Within 10-15 minutes the oven thermometer was reading 200 degrees! Not quite hot enough to do a roast , but hot enough to heat up some hot dogs.
So I removed the pan with pot holders and placed some hot dogs inside.
I didn't remove the pan completely from the oven bag. Just the lid and thermometer. We slipped the hot dogs in, place the lid and thermometer back on, and twisted tied the oven bag closed.
The kids at first decided to sit and watch the oven.
However that only lasted about 5 minutes. They realized that it was really like watching a pot boil. It was no fun! So they asked me to let them know when it was done. Once we go the oven up to 200 again we left them for about 30 minutes. I know a microwave is so much faster, but this was fun! The hot dogs came out heated. They could have been left a little longer to be a little bit more hotter, but either way the kids enjoyed their solar cooked hot dogs for dinner.
NOTES: We may not have needed all the foil on the box, but in the original I seen the funnel didn't go all the way into the box. We just did that way because we used the poster paper. The poster paper on it's own wasn't strong enough to stay up. So we had to stick it into the box to help give it strength. The kids would also like to thank Oma and Grandpa for giving us the boxes we needed to to this project.
So this was our solar oven. Solar oven 1.0! LOL! We are are trying to figure out how to get it hotter! So there might be solar oven 2.0 in the future! One thing we got the oven out there at 4 in the afternoon. So we also wonder if it will be hotter if it was noon time! We also wonder what tweaks we can do to get it hotter.