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76 



The Weekly Florists^ Review^ 



OCTOBKE 14, !'J09. 



FLORISTS' FUEL DIRECTORY 



The Standard 

 of Excellence 



'PCXIAHONTAS' 

 SMOKELESS, 



A Symbol of 

 Quality 



POCAHONTAS 



TIIADS HARK REGISTf RIO 



Our registered Trade-Mark coverln? THE CELEBRATED C. C. B. POCAHONTAS SMOKELESS ■ oat 



corresponcs to the Sterling Stamp on silver, as the United States Geological Survey has made it Tbe Standur,) fir 

 BTRdlDK aU Steam Fuel. "" 



C. C. B. POCAHONTAS SMOKELESS 



Is the only American Coal that has been officially indorsed by the Governments of Great Britain, German- 

 and Austria, and is the favorite fuel with the United States Navy, which has uf>ed it almost exclusive!' 

 for many years. Uneqaaled for the Generation of Steam and Domestic Fnrposes'. 



CASTNER, CURRAN ft BULLITT, Sole Agents 



C. C. B. Pocahontas Smokeless Coal Branch Offices 



Main Office : Arcade BIdg. Neave Building Cincinnati, Ohio. 



1 Ooiitk 1 Bik •!.»« Strickland Building. Roanoke, Va. 



-.... .... ' 'V} •*'*•*' . European Agts.-Hull. Blyth & Company 



Philadelphia, Pennsylvania 4 Fenchurch Ave.. London. E. c, Eag, 



Branch Offices 



1 Broadway, New York City, N. Y. 

 Citizen's Bank Building, Norfolk, Va. 

 Old Colony Building. Chicago, 111. 

 60 Congress Street. Boston. Mass. 



Mention The Keview wlieu you wme. 



fireenhonse Heating. 



If subscribers will state clearly the de- 

 tails of their heating problems, the Ee- 

 VIEW will give in this column the opinion 

 of a man thoroughly familiar with the 

 practical side of greenhouse heating. 



CAPACITY OF BOILER. 



What is the heating capacity in 

 square feet of glass of a wrought iron 

 boiler five feet long over all, thirty 

 inches in diameter, with sixty-five l'^- 

 inch Hues? It is a bricked-in boiler, 

 with a grate surface of about twenty- 

 five inches square. Can this boil.er be 

 ecouomicalJy used as a liot water boiler 

 if there are two oiK>nings tapped for 

 2-inch pif)0? The boiler has no dome. 



A. B. B. 



The boiler you describe is not built 

 according to standard dimensions, but 

 it will carry l,HOO feet of 2-inch pipe 

 for hot water heating. A boiler of this 

 type is neitli(>r economical for hot water 

 or steam, but can be used if the coal bill 

 is no object. Two 2i/.-inch flows and 

 two 2i/.-inch returns will be the proper 

 size of openings. 



A COLORADO RANGE. 



I would like to have your informatiou 

 as to the best way for laying the heating 

 pipes in our greenhouses. We have two 

 greenhouses 25x100 each and want to heat 

 them with hot water. The boiler that we 

 have is a twenty-five horse power locomo- 

 tive type steam boiler and we have 

 changed it to hot water and tapped its 

 4-inch flows and returns. Each house has 

 four benches. From the boiler we want 

 to use 4 inch flow and return, and IV2- 

 inch returns from the 4-inch. Now, what 

 size flows do we want to use from the 

 4-inch from the boiler, to come back with 

 1^-inch returns? How many flows should 

 we use under each bench? And how many 

 returns under each bench.' What rise 

 should the flow pipe have, and what fall 

 on the return? We want to heat the 

 houses at about 4~i to ')~y degrees when 

 the weather is at zero. S. S. N. 



The Chesapeake & Ohio Coal & Coke Co. 



Admiralty Smokeless 



Fspecially 

 prepared for 

 florists' use 



Write 

 for 



quotations 



CHICAGO 



CINCINNATI 



RICHMOND 



NEW YORK 



Mention The Review when you write. 



SMITH, UNEAWEAVER & CO. 



COAL 



Aatkneito, Bltamlnoat, Coke and 6as Coal 



^VtXf.Sfn«. Philadelphia 



Mention The Review when you write. 



tiows and twelve IVL'inch returns. A 

 simple arrangement would be to place one 

 2 inch flow alid three li{;-inch returns un- 

 der each of the four benches of each 

 lioiise. Slant all pipes up from the boiler 

 one iiK'li in every ton feet and place an 

 air vent at the higii ]ioint of each coil. 

 The 4 inch main flow will carry both 

 housps, but it should be reduced to a 

 S-inch main after the first house is taken 

 ofl'. This also applies to the main return. 



To maintain 5o degrees at zero each 

 house 25xL00 Mill require four 2-inch 



PIPI.NG LETTUCE HOUSE. 



I wish to make tiie following in«juiry 

 llinmgh your jjajier and trust it is not 

 Msking too much to insert it: Wo wish 

 to |iipe an even-span house .")0xll50 with 

 2inch pi|.e for hot water. Please tell us 

 how to place the pipe, and how many 

 runs of pipe are necessary to maintain a 

 temperature of 60 degrees during the 

 day, with a minimum outdoor tempera- 

 ture of 30 degrees below zero. The house 

 will be used for lettuce and other vege- 

 tables and has no raised benches, al- 

 tiiough, if possible, we should like to ar- 

 range the jjiping so that raised benches 

 could l)e installed later if necessary with- 

 out altering the jiiping. Would it be 

 advisable to run the main overhead to the 

 far end of the house and then drop it 

 down and branch into the coils? What 

 size of main would vou suggest? 



C. TT. 



To maintain a temperature of 60 de- 

 ;;rees under the severe conditions named 

 it will be well to use a square foot of 



THE MANSFIEtD-DARRABH 

 COMPANY 



Miners and Shippers 



COAL-COKE 



HlKta Grade West Vlrslnla 



Steam Coal 



MANDAR 



StralBbt Mine Run 

 For Florists' Use Especially 



Correspondence Solicited 



HAMILTON, Ohio 



. • • ' 



Sale 



Office. 



Mention The Review w hen you wi; 



radiating surface for every two :ii 

 half feet of glass. Just how niu' ' 

 tlieie is in the house in question 

 1)0 toM very accurately from tli 

 given, lint supposing that there 

 more tiiaii three feet of glass in ' 

 walls an<l that the roof has ab. 

 usual slope, four 4-inch flows anil 

 six 2-inch returns should give tli' 

 peratiire desired. However, it 

 probably be rather more satisfad 

 lesson the number of the returns 

 creasing the size, and twenty-scvi : 

 inch returns would give about tli' 

 results. 



Hathor more than olie-half of i'" 

 shouhl 1,0 placed upon the si<li' 

 One flow could be upon each ph"' 

 the others could be just under tin' 

 lins. The returns, other than those 

 tl.o walls, could be in vertical coils ■ 



nlic- 

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