102 



The Weekly Florists^ Review. 



Decembek 7, 1911. 



SMITH, LINEAWEAVER& CO. 



COAL 



AnthrMlte, Bitamlnons, Coke and 6ms Coal 



tnS'ft.f.at.. Philadelphia 



Greenhouse Heating. 



THE EASTERN FUEL MARKET. 



Conditions in the anthracite trade 

 have not changed to any appreciable 

 extent since our last report, excepting 

 that the demand for all sizes of anthra- 

 cite coal has increased and the prices 

 for steam sizes have advanced, which 

 condition is likely to prevail from 

 now on. 



The opinion throughout the anthra- 

 cite coal region is that there will be 

 labor trouble April 1, and it seems to 

 us that it is advisable for every con- 

 sumer of coal to provide himself with 

 a reasonable amount of stock. 



As to the bituminous coal market, 

 conditions have improved considerably 

 during the last month, the demand be- 

 ing better and prices higher. This ap- 

 plies to all grades. This condition, in 

 our judgment, is a natural one at this 

 time of the year, but is also affected 

 by the prospect of labor trouble in the 

 bituminous coal fields April 1 next. 

 Smith, Lineaweaver & Co. 



STEAM FROM ENGINE BOILER. 



I have a forty horse-power boiler, 

 now used for steam and attached to an 

 engine. Can I disconnect it from the 

 engine and connect the whistle pipe to 

 the steam pipe to give me more steam? 

 The steam pipe is 2i^-inch. How many 

 returns would this require, or can I 

 run steam the same as hot water? The 

 highest point in the greenhouse is about 

 six feet higher than the top of the 

 boiler. Is there some way of doing 

 what I propose,- or will it be necessary 

 to change the heating system to hot 

 water? The house is 20x150 feet. I 

 am located in northwestern Oregon. 



J. H. N. 



With a boiler of the size mentioned, 

 it would probably be possible to get 

 more steam from it by using an open- 

 ing larger than two and one-half 

 ■ inches in diameter, and if the whistle 

 pipe is as large as one and one-fourth 

 inches it would be of some assistance 

 if the two could be connected. How- 

 ever, it Avould give about the same re- 

 sults if the steam pipe were enlarged 

 to three inches close to the boiler. 

 This should also be done if the whistle 

 pipe is connected. In case, however, 

 there is only one house, 20x150 feet, to 

 be heated, a 2%-inch steam pipe will 

 be amply large; in fact, a 2-inch flow 

 would answer for most parts of Oregon, 

 unless more than 50 degrees is desired. 



For 60 degrees in zero weather, run 

 a 21^-inch flow two feet under the 

 ridge^ with a slight fall, and at the 

 farther end of the house connect it 

 with eight ll^-inch returns. These can 

 be on the walls, or from two to four 

 could be under the benches. If the 

 boiler is so high that the lower part 

 of the returns will not be two feet 

 above the water level, a steam trap or 

 pump should be put in, to return the 



HOW MUCH 



dofs the tempfrature vary in 

 your greenhouses during tlie 

 night , or wben you are absent? 

 \Miat 's that— you don't know? 

 Buy a 



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THERMOMETER 



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 Your plants and stock require 

 car tain steady temperatures, 

 llie this thermomoter and you 

 will know whether they are get- 

 tins what they need. It leaves 

 a written record under lock and 

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Send for Circulars 



Standard Thermometer Co., 



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 66 Shirley St., BOSTON, MASS. 



UentioD The Review when you write. 



Adjustable Thermostat 



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NANHAnAN ELECTRICAL SUPPLY CO.,' 



14 S. 6th Ave., 

 CHICAGO 



Mention The Review when you wnie, 



COAL! 



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Pipe Fittings — Imico Boilers 



-POR GRXKNHOnSX WORK- 



ILLINOIS MALLEABLE IRON CO. 



1801-1825 DIVSRSBT BOUUT^ARD CHXCAOO 



