. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fig. 146.—Rayo orchard heater generally has been discarded, because the baskets will not retain their shape when heated. The most satisfactory coal burner is an inverted cone made of sheet iron perforated at the bottom for draft and holding per- haps half a bushel of coal. It is placed a few inches above the ground and sup- ported on iron legs. The
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fig. 146.—Rayo orchard heater generally has been discarded, because the baskets will not retain their shape when heated. The most satisfactory coal burner is an inverted cone made of sheet iron perforated at the bottom for draft and holding per- haps half a bushel of coal. It is placed a few inches above the ground and sup- ported on iron legs. The coal burners should be prepared in advance, so as to be lighted quickly when the temperature approaches the danger point. From twenty-five to fifty heaters per acre usually are considered sufficient for the ordinary orchard of medium age, but for young orchards the number should be increased. A medium grade of soft coal makes a satisfactory fuel, and twenty-five to thirty pounds per heater is sufficient for four hours burning. For the greater part of New York about $2 per night per acre, exclusive of labor in handling, probably would be the maximum cost of heating with coal. Oil.— For the commercial orchardist, oil is probably the most economical fuel, not because it is more efficient than wood or coal, but because it is more easily handled. Crude oil and distillate are used chiefly for this purpose. Crude oil is the cheaper, but is less satisfactory because it contains a certain percentage of water, which tends to extinguish the flame and causes the pots to boil over. Also, it is difficult to handle in cold weather and in burning it gives off large quantities of soot. Distillate is a by-product of crude oil remain- ing after the kero- sene and gasoline have been extract- ed. It is free from water, ignites readily, burns freely, and leaves little residue. The question of an oil fuel that is satisfactory both in price and in efficiency is not yet Fig. 147.—Hamilt
Size: 2137px × 1169px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookidannualreportne1912newybookyear19111971albany
