| 11. | No preheating is required, and the oven also works as a microwave.
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| 12. | Preheating : About 10 minutes before baking, preheat oven to 375 degrees.
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| 13. | After preheating and pressurizing, H 2 is added.
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| 14. | Then the preheating system is turned off and mine exhaust air is introduced.
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| 15. | It requires no preheating and uses 25 percent less energy than a conventional range.
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| 16. | This can be achieved by preheating the material.
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| 17. | The Advantium can be used without preheating.
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| 18. | For that reason, preheating is particularly critical ( the nozzle may require cooling ).
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| 19. | And an even smaller fritting furnace for preheating the ingredients needed for making the glass.
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| 20. | Chill tart shell while preheating oven to 400 degrees F, with a rack in center.
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