Comstock-Castle floor fryers are a high production, energy efficient tube design. Fryers with tube tanks generally are more efficient due to more surfaces for the heat to transfer to the oil. The more efficient heat exchange requires less BTUs to fry the same amount of food, lowering the operator’s utility costs. In many cases fryers with far higher BTU ratings are just wasting energy up the flue. There is a cold zone below the tubes where food particles will settle and not burn. This allows the oil to last longer, a further reduction in operating costs.

Counter fryers are generally used in foodservice operations where space is a premium. Castle builds slant & tube type fry tanks. The tube type tanks are more expensive to build and higher priced but far more efficient.