It mainly depends on your business direction. If you want to use a large pot to hold vegetables, for cost reasons, the seven-core coal stove is the first choice. The disadvantage is that it smells a little gas, followed by the gas frying furnace. The advantage is convenient and quick, but the disadvantage is that the cost is increased and the temperature of soup is easy to drop if it is not cooked for a long time.
If you want to make hot pot, the first choice is an induction cooker. The disadvantage is that it requires high circuits, so you can't operate when there is a power failure. The second one is a gas cooker. The disadvantage is that it is too hot to eat in summer and smells of gas.