March 240 115 125 3750 April 240 165 75 2250 May 240 300 60 June 240 400 160 July 240 400 160 August 240 400 160 September 240 350 110 October 240 200 40 1200 November 240 140 100 3000 December None 65 65 Tons 20700 Less Tons 1950 Total Tons 18750 During the month of December, the Ice Plant will be shut down for overhauling and repairs, and part of the ice stored during November will be sold in December, therefore, requiring a total storage capacity of 18,750 tons, of which 750 tons will be stored in the ante-room and 18,000 tons will be stored in the big winter storage. [4] NUMBER TWO Manufacturing Costs Per Ton of Ice Using Electric Power at Present Chicago Rates for Power and Labor 240 TON CAPACITY PER DAY No Storage House for Surplus Ice ICE SALES ASSUMPTIONS: Tons per day Total Tons January 65 1,950 February 65 1,950 March 115 3,450 April 165 4,950 May 240 7,200 June 240 7,200 July 240 7,200 August 240 7,200 September. 240 7,200 October 200 6,000 November 140 4,200 December 65 1,950 Total output tons 60,450 NOTE--These sales can only be realized if the dealer has at least 18,000 tons of natural ice on hand to enable him to take care of the family trade during the hot months. If no large supply of natural ice is on hand hardly 50,000 tons can be sold, thereby increasing the cost per ton considerably. POWER COST: Due to numerous starting and stopping of compressor during the slack months the maximeter charges will be higher and therefore it must be assumed that 60 K. W. hours will be required per ton of ice instead of 55 K. W. hours for continuous consumption. 60 K. W. hours per ton of ice at .9 cent per K. W. hour equals 54 cents per ton. Adding 1/2 cent per ton for the required heating the power cost for making 60,450 tons of ice equals 60,450 x 54.5 cents, equals $ 32,945.25 [ 5 ] ENGINE ROOM LABOR COST: 1 chief engineer per day $ 10.00 3 engineers per day $ 8.00 Total per day $ 34.00 365 days at $34.00 equals $ 12,410.00 or 12410 / 60450 = 20.54 cent per ton of ice ICE PLANT LABOR COST: (Using present method of pulling ice) May, June, July, August, September and October require: 6 ice pullers per day $ 6.00 3 air men per day $ 6.00 6 storage house men per day $ 6.00