The use of natural gas heating to preven
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V.J. Valli
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Article
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1970
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Elsevier Science
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A natural gas heating system covering 50 acres of apples in Hancock, Maryland, was used to prevent freeze damage during the night of April 19-20, 1969. Simple wind proof burners with cones are installed 40/acre. Each heater's B.T.U. output ranges from about 3&000/h at about 5 p.s.i. to 180,000/h at