990 



The Weekly Florists^ Review* 



Fbbbxtabx 14, 1007. 



The Standard 

 of Excellence 



'c C.D 

 'POCAHONTAS" 

 SMOKELESS, 



A Symbol of 

 Quality 



Our regrlBtered Trade-Mark covering THB CBI.EBRA.TED O. O. B. POOAHONTAS SMOKBLESS OOAI. 



corresponds to the Sterling Stamp on silver, as the United States Geological Survey has made It Th« 9t»ndard for 

 f radius »U Steam Fael. 



C. C. B. POCAHONTAS SMOKELESS 



IB the only American Coal that has been officially Indorsed by the Governments of Great Britain, Germany 

 and Austria, and Is the favorite fuel with the United States Navy, which has used It almost exclusively 

 for many years. Uneqoaled for the Generation of Steam and Domestic Purposes. 



CASTNER, CURRAN ft BULLITT, Sole Agents 



POCAHONTAS 



TIIAOt MARK REOMTINtB 



Branch OflBoes 



1 Broadway, New York City. N. Y. 

 Citizen's Bank Buildlnp, Norfolk. Va. 

 Old Colony Building, Chicago, 111. 

 126 State Street, Boston, Mass. 



G. C B. Pocahontas Smokeless Coal Branch OfDces 



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

 1 Soutk 1 Rik c«>..» Terry Building, Roanoke, Vt. 



1 90Uin lOinMreei European Agts.-Hull,Blyth& company. 



Philadelphia, Pennsylvania 



i Fenchurch Ave., London. E. C, En^. 



Mention The Review when yom write. 



Greenhouse Beating. 



TO HEAT SIX HOUSES. 



I have five greenhouses side by side, 

 as follows: One 14x72 and ten feet to 

 the ridge; one 14x68 and five feet high; 

 one 14x72 and five feet high; one 14x54 

 and five feet high, and one 24x80 and 

 ten feet to the ridge. I intend to build 

 another along the ends of these, about 

 16x130 and ten feet to the ridge. Each 

 of the five houses has a separate heating 

 system. I would like to know what 

 horse-power boiler would be required to 

 heat all six houses in New York climate. 

 There would be about 9,000 feet of 

 glass. No glass in the sides or ends. 

 I have four houses piped with 4-inch, 

 the other with l^/^-inch and 2-inch. Will 

 that make any diiference in the working 

 of the new system? What size of flows 

 and returns will I need in the long 

 house, as this will be the feeder for the 

 others? I plan to locate the boiler at 

 one end of the new, long house and 

 hence at one corner of the range. 



D. C. H. 



A horizontal tubulaf boiler rated at 

 forty horse-power will have sufficient 

 capacity to carry the plant in question 

 if it can be located so that the maxi- 

 mum length of the longest flow pipe does 

 not exceed 100 or 125 feet. When you 

 exceed these lengths it frequently be- 

 comes necessary to install circulating 

 pumps. I would not attempt to heat 

 this plant by hot water on a gravity 

 system with the boiler located as pro- 

 posed. It will be more difficult to gov- 

 ern the rate of the circulation in the 

 different houses when piped with various 

 sizes of pipe than when all are treated 

 alike. You are likely to meet many dis- 

 couragements in attempting to remodel 

 this range on a strictly hot water basis. 

 If it will not entail too much loss, 

 dispense with -the 4-inch pipe, replace it 

 by IV^-inch and place the boiler in the 

 middle of the proposed cover house and 

 run a combination system, hot water in 

 mild weather and steam in cold weather. 



L. C. C. 



FOUR-INCHPIPE. 



We propose to erect an east and west 

 house 30x200 and thirteen feet to the 

 ridge, for pot plants and cut flowers. 

 Which would be the best system of pip- 

 ing, sixteen runs of pipe to 100 feet of 

 house? We intend to put a glass parti- 



IMPKOVED 



Greenhouse Boiler. 



51 ERIK STRKKT, CHICAGO 



Boilers made of steel boiler plate ; shell, fire-box 

 sheets and heads of steel ; water space all around, 

 front, sides and back. Write for information. 



Mention The Review when yon write. 



tion across the center of the house and 

 have the west 100 feet for a cool house 

 and the east end for a warm house. 

 We intend to put the same amount of 

 pipe in each part, but have the west 

 house valved so we can run it cool 

 when necessary. 



The boiler-rooni and potting-shed will 

 be placed on the north side at the cen- 

 ter of the house, so we can run pipe 100 

 feet each way. The two outside benches 

 will be three feet wide, the three cen- 

 ter benches five feet four inches wide 

 and the walks twenty inches wide. Un- 

 der each side bench will be two 4-inch 

 flows and three 4-inch returns; the next 

 two outside middle benches, each one 

 4-inch flow and two 4-inch returns, and 

 no pipe under the center bench. 



Another system would be to use 3%- 

 inch pipes for returns, instead of 4-inch, 

 with the same number of runs. 



How many pipes should be valved to 

 keep the cool house at a temperature of 

 40 degrees? The warm house we wish 

 to run from 60 to 70 degrees in Wis- 

 consin climate. The coal cellar will be 

 12x30, running the same as the green- 

 house, on the north side. We propose 

 to run the boiler back under the green- 

 house as far as we can, so as to have 



No bothersome headers on top and 

 sides. No thousand and one con- 

 □ectloas to be made. 



FLORENCE 

 HEATERS 



are tlie easiest known boilers 

 to erect and operate. Bum 

 any kind of fuel. New 1907 

 catalogue 'will be sent on 

 request. 



COLUMBIA HEATER CO., Belvldere, III. 

 Sales Dept. , 88 Dearborn St, , CblcaKo 



Mention The Review when you write. 



room to run the smoke pipe from the 

 boiler into the chimney in the coal cel- 

 lar. The boiler will be north and south 

 and feed from the north. This will give 

 us more room to clean the flues and 

 more coal room; and in running the 

 pipes those on the east side of the 

 boiler can furnish the east house and 

 those on the west side the west house. 

 We will have the Kroeschell boiler No. 

 12. We wish to build another house 

 30x200 on to this on the south side in 

 a year or two. Would the pipes run- 

 ning straight ahead to furnish the next 

 house interfere with each other? 



W. T, 



I am greatly interested in the plan 

 you propose for heating your green- 

 house. If I count correctly you are 

 planning to use sixteen 4-inch pipes to 

 heat these houses, equal to 1,600 lineal 

 feet of 4-inch pipe. With water at 

 180 degrees you should be able to main- 

 tain 60 to 70 degrees of temperature in 

 these houses, with twelve runs of 4-inch 

 pipe. But why use 4-inch pipe? Twen- 

 ty runs of 2-inch pipe will give you a 



