."■-flff??!-'' 



The Weekly Florists' Review. 



JAMCABY 16, 1908. 



The Standard 

 of Excellence 



TOCAHONTAS" 

 SMOKELESS, 



A Symbol of 

 Quality 



POCAHONTAS 



TRADI HARK KCGISTIRCO 



Our rerlstered Trade-Mark coverinr THE CKLKBKATED C. C. B. POCAHONTAS SMOKEI^SS COAI. 



correaponds to the Sterling Stamp on silver, as the United States Geological Surrey has made It The Standard for 

 Krading all Steam Fnel. 



C. C. B. POCAHONTAS SMOKELESS 



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

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

 for many years. Unequaled for the Generation of Steam and Domestic Pnrpoaea. 



CASTNER, CURRAN ft BULLITT, Sole Agents 



C. C. B. Pocahontaa Smokeless Coal Branch Offices 



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

 1 c«i.ik 1 R»k etMAt Terry Building, Roanoke. Vt. 



1 south 1 Otn street, European Agts.— Hull, Blyth & Company, 



Philadelphia, Penntyivania IPenchurchAve., London, e.g., Eng. 



Branch Offices 



1 Broadway, New York City, N. Y. 

 Citizen's Bank Building, Norfolk, Va. 

 Old Colony Building, Chicago, 111. 

 50 Congress Street, Boston, Mass. 



Mention The Review when yon write. 



(ireeohoiise Beating. 



FACTS ABOUT RADIATION. 



In the Review of December 26, 1907, 

 F. M. L. inquires the number of ieet of 

 radiation that certain sizes of pipe will 

 supply. F. E. gives him a table of fig- 

 ures which seems to have been prepared 

 with much care, but which in actual 

 practice is misleading, since it is im- 

 possible to state correctly what amount 

 of radiation a given size of pipe will 

 properly take care of without also giv- 

 ing the length of this pipe from the 

 boiler or other ample supply to the point 

 of connection with the coil or radiator. 

 A flow or riser of any certain size, run- 

 ning the length of a 70-foot house, for 

 instance, will not supply the same num- 

 ber of feet of radiation that the same 

 size of pipe would supply if it passed 

 through only a 30-foot or 40-foot house 

 before connecting with the coil or radia- 

 tor. The principal reason for this is ' 

 the friction that must be overcome in 

 the long pipe, as well as the radiation 

 of heat from itself. Hence any table of 

 figures that can be given on this point 

 will mislead, unless the length of the 

 supply pipe is also taken into account. 



Another point that must be consid- 

 ered is the size of pipe that is being used 

 as radiators. For instance, 500 feet of 

 radiation made up of 4-inch pipe will not 

 require so large a supply pipe as would 

 be necessary for the same number of feet 

 of radiation made up with l^^-inch or 

 2-inch pipe. Since the small pipes cool 

 so much faster and the friction is greater 

 than in the large pipes, the circulation 

 must be faster and the supply pipe 

 larger. E. G. Milford. 



ONE HOUSE WITH PARTITION. 



Please advise me about piping a house, 

 20x70 feet, for hot water. The house 

 is even-span and runs north and south. 

 It has 12-foot rafters and 4 14 -foot posts, 

 with two feet of glass in the sides. It 

 is double boarded and papered below. 

 The boiler-house is at the north end. The 

 south gable is of glass to within two 

 feet and a half of the ground, the same 

 ^as in the sides. The house is exposed 

 on- all sides. It is divided by a parti- 

 tion, making a 16-foot compartment, next 

 to the boiler-room, in which a tempera- 

 ture of 60 degrees is desired, while the 

 remainder of the house will be run at 50 

 degrees. The minimum outside tempera- 

 ture- in this part of New York state is 



The Standard 

 Steam Trap 



ts acknowledged the best for the 

 florist because it is durable, and does 

 its work without trouble and annoy* 

 ance, saving its cost by the economy 

 in coal bills. 



E. HIPPARD, Youngstown, Ohio 



Mention The Review when you write. 



THE JOHN DAVIS COIVIPANY 



Halsted, 22d and Union Sts., CHICAGO 



MANUFACTURERS OF 



Reducing Valves, Back Pressure Valves, Steam Traps, Steam Goods 



This Is ^rhat one of our customers thinks of our valves : 



Lincoln, III., January 8, 1906. 

 The John Davis Compant, Chicaco, 111. 



Gentlemen:— You can strongly and unhesitatingly recommend the 

 "Eclipse" piston type reducing valve to florists. We have two purchased 

 of you last year. We would not have them out for double their cost and 

 find them as sensitive as a watch. We will be in Chicago soon to take up 

 the vacuum system with you. Vours truly, 



W. H. 6ULX.ETT & Sons, Florists. 



Mention The Review when you write. 



25 degrees below zero. I contemplate 

 using a sectional boiler, rated for 900 

 square feet, and wish the plant to be 

 cheaply installed and to be economical 

 of fuel. 



This is my plan for the east half of 

 the large south room: I would run a 

 L'-inch flow from the boiler to the far 

 end of the house, along the east purlin, 

 and drop below the benches to the end 

 of a manifold of four 1%-inch pipes 

 under the east middle bench, connected 

 by a 2-inch pipe to a manifold of five 

 1^-inch pipes under the east side bench. 

 At the other end of the benches, also, 

 the coils would be connected by 2-inch 

 l)ipe between the manifolds, with a valve 

 to cut out the middle coil. From the 

 outside end of the east manifold there 

 would be a 2-inch return to the boiler- 

 house, where a line of 3-inch pipe would 

 take up all the returns and carry them 

 to the boiler. This would complete the 

 piping in the east half of the large room, 

 and the west half of this room would be 

 piped in the same way, making eighteen 

 runs of 114 -inch pipe and two runs of 

 2-inch pipe in the larger compartment. 



In the smaller room there will be two 

 raised side benches and two solid beds. 

 I have enough 1%-inch pipe on hand and 

 would like to use it for this if possible, 

 laying four coils of six 1^4 -inch pipes 

 each, one under each outside bench and 



S. WILKS MFG. CO. 



* Manufacturers of 



Greenhouse Boilers 



35th and Shields Ave.. CHICAGO, ILL. 



Mention The Review v^hen you write. 



one at each side of the middle walk, 

 using one pipe of each coil as a flow, 

 which would be supplied by a line of 

 2-inch pipe carried from the boiler 

 across the end of the house near the 

 ground, the returns to be collected by 

 the line of 3-inch pipe across the house, 

 already referred to. 



The expansion tank can be placed tei 

 feet above the top of the boiler. Eigh; 

 valves are to be used, six on the flow> 

 and two on the two middle coils in th.- 

 larger section. Do you think this ar- 

 rangement will be satisfactory? If not 

 what changes would you suggest ' 

 Should the returns have the same capa 

 city as the flows, or greater? 



E. C. B. 



The piping you have planned i~< 

 slightly more than is absolutely neces- 

 sary. The large room should be mail, 

 tained at 50 degrees with sixteen IV:.- 

 inch pipes, while you are planning to use 



