• jfir 



rated for 150 horsepower each will be 

 required. 



Ilowever, a boiler rated for ]25 horse- 

 power will be amply large except when 

 the weather ajjproaches zero, and, un- 

 less the number of the greenhouses is 

 to be increased, we would recommend 

 the installation of two boilers of 125 

 horsepower each, planning to hold one 

 in reserve, except in severe weather, to 

 be used in case of accident to the other 

 boiler. Although one of these boilers 

 will not be quite as large as will be de- 

 sired for carrying the radiation with 

 the temperature at zero and below, it 

 will do so with a little extra attention 

 in case of a breakdown of the other 

 boiler, and in ordinary weather it can 

 be operated much more cheaply than 

 the larger boiler. 



QUANTITY OF COAL CONSUMED. 



I am of the opinion that I am using 

 more coal than I ought to use in heating 

 my establishment, which comprises the 

 following buildings: One greenhouse 

 18x85, with two feet of glass in the 

 sides and a 10-foot gable; another 

 greenhouse 24x110, with four feet of 

 glass in the sides and a 12-foot gable; a 

 packing room 12x24, with 9-foot stud- 

 ding and a quarter-pitch roof; a resi- 

 dence, of which I heat the first story, 

 which is nine feet high and contains five 

 rooms, 14xlG, 12x14, 12x12, 14x15 and 

 10x11, and a bathroom 5x9. I have an 

 American hot water boiler, rated at 3,750 

 feet. Please let me know about how 

 much mine-run soft coal should be re- 

 quired each season to heat this place, 

 running the greenhouses with a temper- 

 ature of 50 degrees at night and 60 de- 

 grees in the daytime. 



C. J. S.— Pa. 



So many conditions affect the coal con- 

 sumption that what might prove ample 

 in one season might come far short in 

 another. The construction: and exposure 

 of the greenhouses will have much to do 

 with it, and the weather might be much 

 more severe one year than another. 

 Careful firing will have much to do with 

 the economy in coal consumption. 



We would think that under good aver- 

 age conditions the temperature men- 

 tioned might be maintained in the green- 

 houses and dwelling with fifty tons of 

 coal. Under the best of conditions it 

 might be done with forty tons, while 

 seventy tons might be used by some 

 firemen. 



CHANGING BENCHES AND PIPING. 



I wish to make a little change in the 

 piping of a greenhouse, 21x50, which is 

 heated witli hot water. The house has 

 a 2-inoh flow on each side. These flows 

 feed four 2-iiich returns under each out- 

 side beneli, four 2-inch returns on the 

 west line of ])urlin supports and three 

 2-inch returns on the east purlin sup- 

 ports. Having decided to put raised 

 benclies in tlie middle of the house, in- 

 stead of the present solid beds. I wish 

 to know Avhether I shall get the same 

 service if the pipes now on the purlin 

 posts are put under the benches. 



M. W. T. B.— N. C. 



As we understand the plan described, 

 the proposed change in the location of 

 the return coils will have no effect on 

 the circulation, provided the returns 

 will be above the top of the boiler. 

 The higher the returns are located, the 



Greenhouse Heating 



No. 728-W "Progri'ss" Greenhouse Hot Water Heater. 



THE THATCHER 

 "PROGRESS" Hot 

 Water Heater has many 

 special features of in- 

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Lowest construction. 



Quick and positive circu- 

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Triple fire travel. 



Made in 46 sizes. 



Maiutains even tempera- 

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Requires little fuel and 

 care. 



Send for descriptive folder 



THATCHER FURNACE COMPANY 



since 1850 

 Makers of GOOD House Heaters and Kitchen Kanges 



NEW YORK 

 131-137 West 35tli Street 



rWICAGO 

 134-140 West Lake Street 



Mention The Review when you write. 



IMICO 



Hot Water Boilers 



Made by 



Illinois Malleable Iron Co. 



1801-1825 Diversey Bourevard 



CHICAGO 



Are noted for COAL ECONOMY and 

 good results generally. 



SEND FOR CATALOGUE 



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 HOT WATER BOILER 



For Economy, Durability, Dependability 



IiutaUa WILKS 

 aad for^t year 

 trouble*. 



No night fire- 

 man required— 

 as the magazine 

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 holds sufficient 

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 10 to 12 hours 

 without atten- 

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 for a small 

 greenhouse. 



Send for Catalogue 

 and Prices 



Telephone 

 Yards 866 



S. WILKS 

 MFG. CO. 



23 ShieMs «vt.. 

 CHICAGO. ILL. 



Mention The Review when you write. 



^Superior^ 



INTERNAL-FIRED 

 BOILER 



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Mention The Review when you write. 



