82 



"':.■,„•?, ■ 



The Weekly Florists' Review^ 



Mabch 11, 1900. 



The Standard 

 of Excellence 



^ C B 



iKXrAHONTAS" 

 J5M0KELESS, 



A Symbol of 

 Qualify 



Our registered Trade-Mark covering: THE CELEBRATED C. C. B. POCAHONTAS SMOKELESS COAIi 



correspoDcs to the Sterlinpr Stamp on silver, as the United States Geological Survey has made it Tbe Standard for 

 gradloK all Steam Fuel. 



C. C. B. POCAHONTAS SMOKELESS 



Is the only American Coal that has been officially indorsed bv the Govemnients of Great Britain, Germany 

 and Austria and is the favorite fuel with the United States Navy, which nas ut^ed it almost exclusively 

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



CASTNER, CURRAN & BULLITT, Sole Agents 



POCAHONTAS 



TRADC MARK REQISTemD 



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. 



C. C. B. Pocahontas Smokeless Coal Branch Offices 



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

 1 «....ik 1 Bik C4ii..t Strickland Building. Roanoke, Va. 



1 south 1 om street, European Agts.-Hull, Blyth & Company, 



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



Mention The Keview when you write 



(ireenhoase Beating. 



The Review is glad to answer in this 

 department any inquiry with regard to 

 greenhouse heating. Give all the details 

 of your problem, not only as a guide to 

 an intelligent answer, but so that others 

 similarly situated may derive a benefit. 



FLOW PIPE TOO LONG. 



We have a house on the southwest cor 

 ner of our plant that is piped to heat to 

 55 degrees at 15 degrees below zero, but 

 it falls short about 10 degrees, standing 

 at 45 degrees when the other houses are 

 running at the desired temperature. We 

 think the cause of this is that three 

 4-inch flows and the one 4-inch feed to 

 the above-mentioned house are taken off 

 the main flow (which is 7-inch) withiu 

 a foot of each other. This 4-inch feed 

 has to travel seventy-five feet along the 

 house running east and west, under the 

 gutter, and fifty feet along the east gutter 

 of the southwest house, feeding back 

 through 1,000 feet of 2-inch pipe. This 

 4-inch feed also supplies three radiators 

 in the workroom. Do you think that by 

 taking the 4-inch feed directly from the 

 l)oiler we could get the desired result? 

 M. C. 



From the information given I can only 

 say that the distance the hot water is 

 carried in this case is considerably in ex- 

 cess of the profitable limit with a gravity 

 system. It is likely that if you carry 

 the flow directly from the boiler to this 

 house the piping will prove more eflScient. 

 II may be that more piping will have to 

 be installed, or the plant converted to a 

 steam basis. L. C. C. 



IN MINNESOTA CLIMATE. 



I want to heat a double greenhouse, 

 fourteen feet wide and eighty feet long 

 each. There will be three benches in 

 each house. We want to keep a tempera- 

 ture of from 55 to 60 degrees in the 

 coldest weather, Minnesota climate, 

 which may be 30 degrees below zero. I 

 nni thinking of putting four 1^^-inch 

 steam pipes under each bench. The 

 lioiler will be in a pit at one end. Half 

 of the pipes in the houses would be flows 

 and half returns. How would the sys- 

 tem work? O. A. 



.As I understand your statement, you 

 have two houses, each fourteen feet wide 

 and eighty feet long, without a partition 



"DETROIT 



A Positive Factor 



JJ Automatic Return 



Steam Traps 



oVE^nomy Fof StcaiTi Hcated Greenhouses 



**Detroit" Traps will keep entire eystem free from water at all times, making 

 every foot of heating surface hot and efficient, returning automatically all water of 



condensation directly into the boiler — hot — 

 and w^ithout a pump or injector. 



A great coal saver. 



An economical boiler feeder. 



Worth double the price. 



Ask Mr. Geo. Reinberg, flo- 

 rist, Chicago, 111. He has 

 used other makes, also. 



Write us size of boiler and number of square feet of glass in your greenhouse. 

 It w^ill pay yon. 



Ilh,.il|l\llll.„. I,. \JKJ %mfi '%rii|l' "llPill" 



Dept. F. R. Detroit, Mich 



Mention The Review -when you write. 



wall, which you wish to heat with steam 

 by the use of liAincii pipe. If so. I 

 would suggest that you use ten IV^-inch 

 returns under the benches in each house, 

 tiiree under each of the two interior 

 benches and four pipes under each of the 

 benches next the oulside wall. A single 

 2-inch main flow from the boiler carried 

 under the ridge of each house to tlio 

 most distant end of the house, there to 

 feed the ten P/.-inch returns, will prove 

 a most satisfactory arrangement. 



L. C. C. 



RETURN PIPES TOO SMALL. 



How can I improve my present heating 

 system? I have two houses. 20x75, and 

 use hot water. I start with a 2 1/. -inch 

 pipe running through the end wall at the 

 west end, and run two 2 inch pipes to 

 the front end on the toj> of the purlin 

 posts, to feed a coil of seven IVi-inch 

 pipes on each side. The boiler is about 

 one foot lower than the lower end of the 

 coils. The other house is heated from 

 the same 2%-inch pipe, and has one coil 

 of five pipes and another of six. The 



SMITH, UNEAWEAVER & CO. 



COAL 



AathrMlte, BitaBlBoai, Coke and Gm Coal 



aVt%fiSfn«. Pliiladelphia 



Mention The Review when you write. 



lank is about one foot above the highest 

 point — as high as I can get it at present. 

 The end of the coil near the boiler is 

 always cool, especially the bottom pipes. 

 If I raise the tank five or six feet, wil! 

 that help any? O. P. M. 



An independent riser to each house will 

 undoubtedly help, but one of the main 

 troubles is the size of the pipes used as 

 radiators or returns. It is seldom wise 

 to use pipes smaller than lV>-inch for 

 returns, and for runs seventy-five to 100 

 feet in length pipes not smaller than 2 

 inch. If the expansion tank can be ele- 

 vated six to ten feet above the highest 



