Dairy farmers have a real problem in providing hot water at not too great a cost. A gas heater producing hot water and steam for dairy farm use was studied to determine (1) the time to produce hot water and steam, (2) the uniformity of temperature within the steam chest, (3) the efficiency in killing E. coli in 10-gallon milk cans, (4) the fuel efficiency of the heater, and (5) the cost of operation. The authors believe that a gas water heater of the type investigated could lend itself satisfactorily to New England dairy farms.

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Author notes

1This article is based upon a Master's thesis presented to the Graduate School by W. T. Geenty, Jr., June 1951. Published as contribution No. 869 of the Massachusetts Agricultural Experiment Station.

Dr. W. S. Mueller is Associate Professor of Dairy Industry at the University of Massachusetts, where he has been on the Experiment Station staff since 1931. A graduate of the University of Illinois, he received the M.S. degree from Rutgers University and the Ph.D degree from University of Massachusetts. Prior to his present position, he held the Edible Gelatin Manufacturers' Research Society of America fellowship at the University of Massachusetts. His numerous publications deal with gelatin, dairy products, antioxidants, nutritive value of cocoa and chocolate, quaternary ammonium germicides, and detergent-sanitizers.