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It takes a lot of time when heating up a bigger pan or a pot when you only have a smaller burner left. On the other hand, a waste of gas and excessive hazardous carbon monoxide is emitted when you heat up a small pan on a bigger burner. It is inefficient when the pan doesn’t fit the proper size of a burner. Existing gas ranges are only able to adjust firepower. Therefore, this is a gas range that can enlarge or reduce the range of the burner. It is more efficient if the range of the fire is adjustable.
Cheonan-si, South Korea