. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 386 Agricultural Experiment Station, Ithaca, N. Y. which is 10x17 and 12 feet higli. This was connected with the city gas system. Including the connections in the cellar (40 ft.), this little heater was expected to heat 220 linear feet of inch pipe with hot water. A steam heater is not practicable for such a small area. The gas was first lighted one December day when the pipes were cold. An hour was required to thoroughly warm up the system. In ordinary
. Annual report of the Agricultural Experiment Station. Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). 386 Agricultural Experiment Station, Ithaca, N. Y. which is 10x17 and 12 feet higli. This was connected with the city gas system. Including the connections in the cellar (40 ft.), this little heater was expected to heat 220 linear feet of inch pipe with hot water. A steam heater is not practicable for such a small area. The gas was first lighted one December day when the pipes were cold. An hour was required to thoroughly warm up the system. In ordinary snug winter weather (thermometer outside 10° to 15°), the apparatus consumed one-half cubic foot of gas per minute to keep the house at a proper temperature for conservatory plants. The system worked perfectly. jS^ot one thing more could be de- sired—except cheaper gas. A very slight increase in the amount of gas—supplied by simply turning a valve—was sufficient to make a very rapid change in the temperatures of the pipes, so perfectly was the system under the control of the heater. So long as the weather was running nearly uniform, the heater demanded no thought or attention. It is the perfection of a lazy man's machine. The readiness with which the system responded to more or less gas may be indicated by the following test. When the experiment began the apparatus was consuming one cubic foot of gas every 2|- minutes. Thermometer No. 1, on the outside of the riser at its highest point 58 feet from the heater, registered 94° and ther- mometor No. 2 on a return 70 feet from the heater, registered 68°. Gas was turned on until a cubic foot was consumed every 1^ min- utes. The temperatures went up as follows: Thermometer 2, degrees. 7 minutes 10 minutes 14 minutes 20 minutes 25 minutes 31 minutes 40 minutes 45 minutes 60 minutes 75 minutes 85 minutes 97 minutes. Please note that these images are extracted from scanned page images that may have been digitally enhanced for
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