76 



The Weekly Florists^ Review^ 



February 10, 1910. 



71 



The Standard 

 of Excellence 



■^ C D 



'Pocahontas" 



J5M0KELE5S, 



A Symbol of 

 Quality 



POCAHONTAS 



TRASS HARK RiaiSTIRU 



Our regristered Trade-Mark Coveringr THE CELEBRATED C. C. B. POCAHONTAS SMOKELESS COAL 



correspondH to the Sterling Stamp od silver, as the United States Geological Survey has made it The Standard for 

 KradinK all Steam Fuel. 



C. C. B. POCAHONTAS SMOKELESS 



Is the only American Coal that has been officially indorsed bvthe Governments of Great Britain, Germany 

 and Austria, andis the favorite fuel with the United States Navy, which has used it almost exclusively 

 for many years. Uneqnaled for the Generation of Steam and Uomestlo Purposes. 



CASTNER, CURRAN « BULLITT, Sole Agents 



C. C. B. Pocahontas Smokeless Coal Branch Offices 



Main Office : Bollitl Bid;. Neave Building Cincinnati, Ohio. 



c.iia ■iKO Strickland Buildinjr, Roanoke, Va. 



SUlie J3£ European Agt8.-Hull,Blyth& Company, 



Philadelphia, Pennsylvania 4 Fencburch Ave., London, £. C Eng. 



Branch Offices 



1 Broadway, New York City, N. Y. 

 Citizen's Bank Buildine, Norfolk, Va. 

 Old Colony Building. Chicago. 111. 

 60 Congress Street, Boston, Mass. 



Mention The Review when vou write 



SMITH, UNEAWEAVER & CO. 



COIAL 



AatkrMlto, BitimlBMS, Coke ud Bas Coal 



Philadelohia 



West End 

 Trust Bnlldlna:* 



Mention The Review when you write 



fireenhonse Heating. 



BOILER AND SMOKESTACK. 



I have a fire-box boiler, four feet wide, 

 twelve feet long and containing forty 3- 

 inch flues, eight feet long. The grate 

 surface is three feet six inches square. 

 The boiler has a dome two feet high and 

 two feet in diameter, and is now used 

 for steam. Please state how much glass 

 this boiler would heat with hot water, 

 and whether it would heat more or less 

 with steam. What should be the diam- 

 eter and height of the chimney? 



6. O. K. 



The boiler should heat from 8,000 to 

 10,000 square feet of glass, using steam, 

 and although it is customary to make a 

 somewhat smaller estimate for hot water, 

 it is probable that, owing to the large 

 grate surface, it would answer for the 

 same amount when hot water is used. 



It will be well to make the chimney 

 sixteen inches in diameter and from 

 thirty to forty feet high, the greater 

 height being used if there are buildings 

 in the vicinity which would interfere with 

 the draft. By increasing the height of 

 the chimney a slight reduction in its 

 "liameter could be made. 



THREE DEFECTS IN PIPING. 



Please tell me the correct way to heat 

 my greenhouse. The house runs east and 

 west and is 20x80 feet. The boiler pit 

 is at the northeast corner. The boiler is 

 an upright of the usual make, with a 

 2-foot grate. The house has 4-foot walls 

 and measures ten feet to the ridge. I 

 had the boiler tapped for 1^/^-inch con- 

 nections. I would have made larger 

 openings, but, owing to the circumfer- 

 ence of the boiler shell, I could not get a 

 full thread in the iron, and thus would 

 not have made a good job. The pipes 

 are now connected as follows, using hot 

 water: 



I am using l^/i-inch flow lines, running 

 west over the benches, on the walls, and 

 i'-inch return coils, with one-eighth inch 



Carterville 

 COAL 



Beat From Illinois 



PROMPT SHIPMENT 



Write For Prices 



COVEY-DURHAM COAL CO. 



215 Dearborn Street, CHICAGO 



Mention The Review wnen you write. 

 DO TOU KNOW ABOUT THE 



JHartin Rocking (irate 



IT SAVES COAL 



MARTIN GRATE GO. "'^^^ 



Mention The Review when you write. 



of fall to every eight feet of pipe. Is 

 this the right way to put the piping in to 

 receive the best results? I can not ob- 

 tain a temperature above 45 degrees in 

 zero weather. I should like to carry a 

 night temperature of 50 degrees when 

 the outside temperature is 15 degrees be- 

 low zero. In the middle of the house I 

 have an 8-foot bench, which I use for 

 vegetables and which has no pipes either 

 overhead or under it. Is this correct? I 

 am located in Indiana. C. E. F. 



From the description given, it is evi- 

 dent that there are at least three reasons 

 why satisfactory results cannot be ob- 

 tained. To obtain a temperature of 50 

 degrees when 15 degrees below zero, 

 there should be at least 520 feet of ra- 

 diating surface, and to carry this there 

 should be either three 2-inch flow pipes or 

 two 214-inch flows, instead of two 114- 

 inch flows, as in the present plan. Then, 

 too, instead of having 520 feet of radia- 

 tion, there are only a little more than 400 

 feet, and the arrangement of the pipes in 

 the coils is such that the circulation is 

 slow and ineffective. A part of the diffi- 

 culty could be overcome by using a closed 

 system, but even then it would be well to 

 use li^-inch flows, and 2-inch would be 

 better. 



It would be found helpful to the crops 

 in the middle bench if a part of the ra- 

 diation could be underneath, and if the 



Leaks Ruin Stoci^ 



Don't Have Them 

 Our Emergency Pipe Clamps 



are made of malleable Iron and are 

 guaranteed to malce QUICK, SURE RE- 

 PAIRS of all splits or rust holes on pipe. 



Send for catalogme. 

 Pipe Repairs and Steam Specialties 



JAMES McCREA & CO. 



Manufacturers 

 558-560 Washington BWd. GfllCAGO 



Mention The Review when yon write. 



FOR 

 $1.00 



i^TRIPp CO^^S*-.*^ 



We will send you by expreoB. all charKes 

 prepaid, a one pound can of 



Tripp's Pipe Joint Compound 



Ground in Boiled Linseed Oil, ready to 

 uee, and a one pound package of 



Tripp's Iron Repair Cement 



The Alan H. Tripp Co. 



260 S. Clark Street, CHICAGO 



Mention The Review when you write. 



Steel "'VVbui., Boilers 



The most economical type of boiler for 

 Greenhouse heatinir. UiKbly recommended 

 by well-known florists. 



JOHNSTON HEATING CO. 



138 E. 31it St., NEW YORK 



