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100 



The Weekly Florists' Review* 



January 11, 1012. 



SNIT1I,LINEAWEAVER&C0. 



COAL 



Aatkraeite, BitamlBOis, Coke and 6m Ootl 



grm»t*Biiuding. Philadelphia 



Greenhouse Heating. 



COAL OE NATUEAL GAS. 



We have a house 20 x 110, heated by 

 a boiler which is eight feet in length, 

 with a firebox 2x3 feet. We heat by 

 steam and have about 700 feet of 2- 

 inch pipe in use. It requires a ton of 

 coal a week to heat the house in mod- 

 erate weather and a little more in zero 

 weather. How many feet of gas would 

 be equivalent to the ton of coal, or 

 would heat the house for a week? 

 Which would be the cheaper, coal at 

 $2.50 to $3 per ton or gas at 12^4 

 cents per thousand? A neighbor has 

 a well that we can get for $30 per year, 

 but we can not tell whether the flow 

 would be sufficient to run the boiler. 

 A gas company will furnish us gas at 

 12% cents per. thousand, but we think 

 that would make too much difference 

 in the cost of heating. Our location is 

 northern Ohio. O. E. K. 



The temperature at which the house 

 is kept is not stated and it is not possi- 

 ble to judge of the efficiency of the 

 system, but with the amount of pipe 

 mentioned, if properly installed, there 

 should be no difficulty in maintaining 

 a temperature of 60 degrees in zero 

 weather. One ton of coal per week 

 should keep up this temperature, with 

 the weather averaging 10 degrees above 

 zero at night. 



A good deal depends on the quality 

 of the coal, but if it is a good grade 

 of run of mine, the gas at 25 cents per 

 thousand cubic feet should be found 

 about as economical as the coal when 

 allowance is made for the labor of 

 firing, removing ashes, etc. It would 

 not be safe to rely upon the well men- 

 tioned, as the pressure might go down 

 some cold night and serious harm might 

 result. The well may be a bargain at 

 the price mentioned, and could be used 

 with safety if a connection with the 

 city gas main is also made, for use 

 in case the pressure of natural gas fails. 



COPPEB FLUES IN BOILEES. 



Has any brother florist had experi- 

 ence with copper flues in boilers? The 

 manufacturers of my boiler discour- 

 age the use of copper flues on account 

 of their high cost, though admitting 

 at the same time that the life of their 

 superior charcoal-iron flues is only 

 about seven years. When one notes 

 the great number of boiler flues ad- 

 vertised for this, that and the other 

 purpose, he is doubtful whether the 

 average life of iron or steel flues is 

 that long. 



I asked a prominent construction en- 

 gineer what he thought of copper flues. 

 He condemned the idea of using them 

 in a hot water boiler, because of their 

 high cost. He admitted, however, that 

 he had never given the subject much 

 thought, and stated that he had noticed 

 that when space was an object, when 

 the maximum service for the minimum 



An Innovation in Steam Trap Design 



and Construction 



THE NEW 



RETOMH TRAPS 



99 



tn devtid if ill nieccnarr 



■eckuisB. 



Etot put denfiei BuifactiNA 



ud useBUed witk tke idea fk 



permuence firemut. 



Eferr tilt if tke trip ikiwi tkat 



It's wirkms— dniiing eveir dn^ 



•! cfideiMtira !»■ tke keitiic 



irstem ud ntiBitkillr retinill 



it ti tke kiUer— le pimpfM 



tmkle. 



Return it directly to the boiler 



Condensation is the purest kind of boiler feed water. Don't waste it 

 by "Detroit" Return Traps and prevent scale forniation. 



Ask us to mail you advance bnlletin, No. 820-FR. 



American Blower CbMPANY 



DETROIT. MICH. ■ 



U. S. A. 



MentloD The Review when you write. ' 



COAL! 



Ov AitiDutic Electric Cendensatien Punp 



8AVKB 30% TO S09b COAL. 



Draws Water and Air out of the Heatins 



System. 

 Returns Condensation Water to Boilers. 



Makes Heatlne Dnlform 

 8AVKB LABOR 



Write for particulars. 



CHICAGO PUMP CO. 



906.910 W. Lake St., CHICAGO, XLL. 



BETTER TO SAVE COAL 

 THAN BUY IT CHEAP 



Mention The Review when you write. 



IMICO 



Hot Water Boilers 



Made by 



ILLINOIS MALLEABLE IRON CO. 



1801-1825 Diversey Boulevard 



CHICAGO 



Are noted lor coal economy and 

 i^od resnlts g^enerally 



SEND FOR CATAL06DX 



Mention The Review when you write. 



DO TOD KNOW ABOUT THX 



Martin Rocking Grate 



IT SAVES COAL 



MARTIN GRATE CC-'telfe? "^ 



Mention The Review when tou write 



space was desired, copper flues were 



used. A strong plea in their favor, 



was it not? Why not consider economy 



I and durability, together with the first 



Ford S Kendig Co. 



"Spellerized" Wtoaght Pipe 



Especially adapted for Greenhouse Work, Fit* 

 tings, Valves, Tools, etc. 



24tli ud Wood Sts. 



PHILADELPHIA, PA. 



cost, in this as in other lines in our 

 business? 



On inquiring I find that iron flues 

 for my boiler, No. 8 gauge, would cost 



