All About Solar Heated Grill

Categories: Heat


This study aimed to find out if an old shoebox and a thick tin foil can be converted to amore useful piece of cooking equipment. The feasibility of reflective solar heated grill that is built from a cardboard box, tin foil, and poster board as alternative cooking equipment was studied in this research project. The cardboard box was cut and shaped. The tin foil is settled in the middle making it looks like a slide. We go outside in the heat of the sun.

The barbeque sticks were placed in the spot where reflection of the sunlight focuses on the hotdog .just like a real skewer the hotdog were cooked therefor minutes. Tasted it and voila. Real hotdogs on stick just like mom used to cook.



A solar heated grill can be built from a cardboard box, tin foil, and poster board. Sunlight hits the reflective surface and focuses on the hot dog held in the center.

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Students can work in pairs or individually if there are enough materials. This is a parabolic cooker we built a while ago, so unfortunately we can’t show step by step photos of its construction. However, it’s relatively easy to see how it was put together. It makes a great Physics project. Unlike most, you’ll actually get some use out of it afterwards. Some of the principles it demonstrates are:

  1. Optics: focusing parallel rays of incident light through the use of a parabolic mirror.
  2. Energy transformation: light to heat
  3. Renewable energy: solar power


General Objective:
This study of Solar Heated Grill aim to find out if an old shoe carton box can be useful in making a alternative cooking machine.

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Significance of the study:

This serves as an eye-opener for those who don’t have a grill in their backyard. At the same time they can also reduce their solid waste materials at home because their about to use their old shoe box. * Provide information to students and teachers with respect to the recycling of carton box or old shoe box. * Serve as motivating factor for the schools or institutions to direct their students and to further strengthen their capabilities for developing old carton box into a cooking grill and other processes to maximize the recycling of old carton box.

Furthermore, the outcome of the study will provide empirically based information to policy makers in Ecological recycled Waste Management. (RA 9003) junk cartons are usually stocked or thrown out elsewhere. Converting these non-functional cartons does not only support RA 9003 but it also opens an avenue to develop technology in the community.


This study was conducted August 07, 2010 to August 10, 2010. Finalized in a day. It is limited to the use of carton box, tin foil. Glues, musking tape barbeque sticks, and hotdogs. Yummy. The conversion of an old carton box into a solar heated grill is the main concern of this research. The output can be done by properly assembling it.


For purpose of clarity, the following terms used in the study are hereby defined:

Hotdog – A commonly-used (but etymologically obscure) term for a sausage that is usually eaten in a bun with ketchup, mustard, and/or relish.

Grill – Outdoor cooking appliance .To cook food above charcoal, gas or other means of heat. (Typically outside)

Tin Foil – A wrapping substance to keep food fresh.

Skewer – is a thin metal or wood stick used to hold pieces of food together. They are used while grilling or roasting meats, and in other culinary applications.


Hot Dogs rank right up there Hamburgers as the favorite summer food. However, while people can take a homemade hamburger seriously, the hot dog tends to be something inexpensive and flavorless. It’s for this reason that I don’t generally like hotdogs. I prefer something better in the grill. This is why it’s better to put a sausage in the grill rather than those expensive fast food hot dogs. If you happen to be one of the world’s 2 billion people who don’t eat pork you are in luck. There are a lot of hot dog variations out there that are as good as the original. Sausages made from turkey, beef, chicken are loaded with flavors and in some instances superior to there pork counterparts. You can usually find these available in local health food stores or specialty meat markets. There are probably as many ways to top off a hot dog as there are ways to top of a hamburger. You top your dog in this order: yellow mustard, relish, onions, tomatoes, pickles, peppers, and celery salt. And few things can make a meal out of a hot dog like a heavy dose of chili.




  • Two pieces of heavy cardboard (like the side of a cardboard carton). The first piece must be at least ten inches square and the second smaller piece must be at least four inches by five inches.
  • A piece of light poster board eight inches wide and sixteen inches long.
  • Twelve-inch wide aluminium foil. (You will use about 32 inches of the material.)
  • Some masking tape. (You may experiment with other types of tape.)
  • Nine inch long sticks about 1/16 inch in diameter. You may also use lengths of heavy wire.


  1. Select a long narrow box; the longer the box the more heat collection is possible. Choose a focal length between 5″ and 10″ and design a parabolic curve as seen in the picture. One template could be used for all the cookers. Trace the curve on the open end of the box so that it is centered and straight.
  2. Cut out the curve with a utility knife. Stress the importance of being exact. Measure and cut a piece of poster board that will fix flush against the opening to the box. Attach this with tape beginning at the center and working toward to edges.
  3. Cover the curve with white glue and apply aluminium foil shiny side out. Start in the middle and smooth toward the edges. Try not to wrinkle or fold the foil; you want it as smooth as possible.
  4. Use two scraps of cardboard taped to each side as supports. Using the sun or a projector light, test the focal point. There should be a bright spot where light is concentrated; mark this spot and punch a hole for the skewer. Use a section of a coat hanger from which the paint has been removed for a skewer.
  5. Enjoy your hot dog!


This chapter presents the data, analysis and interpretation of findings. It is in this part whereby the data have been sorted out, tabulated, subjected to statistical analysis and then the findings were interpreted. After we had produced the hotdog grill out of recycled old carton box. And grilled the hotdog there thru spotted sunlight reflections on the tin foil. We asked somebody to rate the taste and acceptance of the food.



Our hypothesis was right. The hot dog grill made of cardboard can really cooked delicious hotdogs which is acceptable in the real world; the cooker is cheap if built. Because the materials are not expensive. Produced hotdog is the same as it is cooked in the grill. We think that if a reflective hot dog cooker can be built from a cardboard box, tin foil, and poster board is feasible that hotdog can be cooked there just our mom used to cook. We think that it is cheaper and economical since we live in a tropical country; we think that this will be acceptable in our time.


On the basis of the conclusions formulated, the following recommendations are offered for possible further study. 1. Information disseminations to the people on the proper recycling of old and dilapidated Carton boxes and other recycled wastes should be intensified. 2. People should know the values of recycling not only the biodegradable and non-biodegradable wastes but also for them to do their part to cut down on waste pollution that affects the environment. 3. Carton users should be guided accordingly on how to recycle destroyed shoe cartons rather than to junk them elsewhere, because dumping them elsewhere, will eventually can cause messy surroundings. For them also to help reduce the fire which are fatal to human beings.


Solar Cooking Frequently-Asked Questions

What are the basic kinds of solar cookers?

There are three basic kinds:

  • Box cookers
  • This type of cooker has been the advantage of slow, even cooking of large quantities of food. Variations include slanting the face toward the sun and the number of reflectors. You’ll find an article discussing solar box cooker design share.
  • Panel cookers
  • This recent development was sparked by Roger Bernard in France. In this design, various flat panels concentrate the sun’s rays onto a pot inside a plastic bag or under a glass bowl. The advantage of this design is that they can be built in an hour or so for next to nothing. In Kenya, these are being manufactured for the Kakuma Refugee Camp project for US$2 each.
  • Parabolic cookers
  • These are usually concave disks that focus the light onto the bottom of a pot. The advantage is that foods cook about as fast as on a conventional stove. The disadvantage is that they are complicated to make, they must be focused often to follow the sun, and they can cause burns and eye injury if not used correctly. Some of these concerns have recently been reduced by Dr. Dieter Seifert’s design.

Who made the first solar cooker?

The first solar cooker we know of was invented by Horace de Saussure, a Swiss naturalist experimenting as early as 1767.

Where are solar ovens being used the most?

There are reliable reports that there are over 100,000 cookers in use in both India andChina. We are aware of solar cooking projects in most of the countries of the world.Solar Cookers International has recently had a breakthrough in Kenya using the CooKitpanel cooker. More than 5000 families are now solar cooking there.

Would a mirror make a better reflector?

While mirrors are more reflective than simpler materials such as aluminum foil, but the added gain is probably not worth the increased cost and fragility involved with using a mirror.

If you build a box cooker out of cardboard, won’t it catch fire?

No. Paper burns at 451OF (233OC) and your cooker won’t get that hot.

What happens if the sun goes in front of the clouds while I’m cooking?

Your food will continue to cook as long as you have 20 minutes of sun an hour (using a box cooker). It is not recommended that you cook meats unattended when there is a possibility of substantial cloudiness. If you can be sure that the sky will stay clear though, you can put in any type of food in the morning, face the oven to the south and the food will be cooked when you get home at the end of the day.

Cite this page

All About Solar Heated Grill. (2016, Sep 30). Retrieved from

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