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Preheating

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Last updated: May 27, 2015      

To increase the output of a solar cooker it is possible to preheat one pot of food as another is cooking in the solar cooker. The illustration shows a simple preheater that can be made from one corner of a cardboard box.

Water pasteurization preheater

A simple reflector made from one corner of a cardboard box can be used to preheat food or water while other food is cooking.

Preheating water for cookingEdit

Davao City Jail solar hot water, 5-27-15

Inmates at the Davao City Jail use solar preheated water for cooking. photo credit: Karlos Manlupig

  • May 2015: Solar heated water saves firewood in the Philippines - Inmates at the Davao City Jail in the Philippines, have begun to use solar preheated water for cooking. Not directly solar cooking, but none the less, a type of integrated cooking that is saving firewood. By preheating the water, cooking time is reduced 20 - 30 minutes. The system was provided by the International Committee of the Red Cross. A guard said the facility used to have a truckload of firewood delivered three times a week. Now, it needs only a single delivery every two weeks. Read more...

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