Hello, there are too many facilities in your shop. For example, an electric water heater needs a 4-square main air conditioner and a 4-square oven. The small one needs three 2.5 square meters freezers and an ice cream machine. The ice maker also needs a 4 square main line. Although it is not used at the same time, it is necessary to take precautions. You'd better see how many main lines are used indoors. Otherwise, it is useless to suggest that you find a local professional electrician for on-the-spot investigation, which should give you a reasonable and safe suggestion. I wish you a prosperous business here! ! !