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The Weekly Florists' Review* 



OCTOBEn 8, 19J08. 



THREE CERTIFICATES OF MERIT 



From the Society of American Florists— Niagara Falls ConTentlon. 



On Boiler Heat Generator 



Improved Coupling 



Write ua About Any One Tou Are Interested in. 



HKRK IS ONK SAMPLE OF THK SCORES OF UNSOLICITED CBRTIFICATCS 

 WE GET FROM OUR CUSTOMERS. 



Kkokschkll Bros. Co., Chicago, 111. Columbus. Ohio, Sept. 1, 1908. 



Dear Sirs: I wish to write you a few lines concerning your No. 2 boiler which we received last 

 fall. Your boiler proved tn be excellent in i»»tetial and workmanship. It did the work very 

 nicely last winter with a small amoant ot coal. Others used up more than a carload while we 

 used only 15 tuns all winter, including what we used in the dwellini;. Every one in our nelKhbor- 

 hood has got a Kroeschell boiler. As soon as the other greenhouse men saw it they took a liking to 

 it and now they've all got one. We speak well of your boiler to all who see it. The Kroeschell Is 

 our favorite if we erer ^et another. , Yours Respectfully, 



-f. 



John Koekiq, Box 88, Valley Crossing, O. 



NOT CAST IROif-Has thin waterways. Heats quickly. It is the most efficient, 

 safest and most economical boiler built, very powerful. 15 sizes, heating from the 



ofg 



smallest greenhouse up to 50,000 square feet 

 zero. Prices and catalogue oh application 



glass to 60 degrees, at IS degrees below 



KROESCHELL BROS. CO, 91 Erie St., Chicago 



Mention The Review v^hen you write. 



(ireeahotise Heating. 



CAPAQTY OF EXPANSION TANK. 



I have erected two houses this sum- 

 mer, one 26x200 and the other 26x100, 

 with a connecting house 15x40 feet. I 

 have a No. 7 Kroeschell boiler and gen- 

 erator. There are six 2-inch flows in 

 each house, with fourteen 2-inch returns 

 under the benches and along the side 

 walls. It was recommended to me to 

 use an expansion tank with a capacity of 

 100 gallons, as the bottom of this tank 

 will be not higher than twelve feet from 

 the base of the boiler. A local plumber, 

 who does the piping, says it would be 

 foolish to use a tank of that capacity. I 

 would be thankful for your kindly ad- 

 vice in regard to the matter. A. P. 



The point is not how high the bottom 

 of the tank is above the bottom of the 

 boiler, but how high it is above the 

 highest point in the heating plant. If it 

 is twelve feet above the high point in 

 the pipe system it will be satisfactory. 

 It should then be connected with the 

 main return close to the boiler by %- 

 inch or 1-inch pipe. If the system is 

 full when cool and there is no water in 

 the expansion tank, 100 gallons ought to 

 serve all right; larger would not hurt. 



L. C. C. 



THE HEAT GENERATOR. 



Will you kindly tell me where I can 

 get information in regard to the Honey- 

 well generator for hot water systems 

 mentioned in the Review a short time 

 ago! .. W. S.K. 



The Honeywell generator is manufac- 

 tured by the Honeywell Heating Specialty 

 Co., "Wabash, Ind. It is a simple device 

 for putting the hot water under pressure 

 and thereby raising its temperature, in 

 accordance with the well-known natural 

 law that the boiling point of water is 

 raised about 3 degrees for every pound 

 of pressure put upon it. It is the same 

 principle employed in vacuum steam sys- 

 tems, only applied in the opposite direc- 



WX^^ J'^^^^J Automatic Return 



DeiroiT ste 



am Irraps 



FOR STEAM HEATED GREENHOUSES 



DETROIT Traps will keqp entire system free from water at all times, making every foot of 



heating surface botrana ^flScient. returning automatioally all water ot condensation 



directly into the boiler— hot— and wltbout a pump or Injector. 



'fi 



A Qreat G>al 

 -SAVER 



An Ecooomical 

 Boiler Feeder 



Worth Double 

 the Price 



Ask 



Frank Holznagle, 



Florist, 



Detroit, Mich* 



Write us number of feet and size ot pipe in your greenhouse. It will pay you. 



DETROIT STEAM TRAP CO., Dspt. F, R., 



715 Brooklyn Avenue. 



DXTItOIT, ancH. 



Mention The Review when you write. 



tion. In the vacuum steam systems the 

 system is sealed against the natural 

 atmospheric pressure and the water boils 

 at a lower temperature; in the hot water 

 system artificial pressure is added to the 

 natural atmospheric pressure and the 

 water does not boil until it has been 

 raised to a higher temperature. 



Under natural conditions water boils, 

 making steam, at 212 degrees. If. one 

 pound pressure is put upon it by artificial 

 means it boils at 215 degrees; two 

 pounds, 218 degrees, etc. 



There are several advantages claimed 

 for the under-pressure system. In the 

 first place, the water in the coils is much 

 warmer; it can be 240 degrees under ten 

 pounds pressure, as against 212 degrees 

 ' under atmosphere. The hotter the water 



WRITK FOR CATALOG OF 



EAP'JftERS 



^T*^^ 



... V?- 



United S tales Heaterfompany. 



DETROIT, MICH. 



Mention The Review when you write. 



the smaller the pipes, and the smaller 

 the pipes the less volume of water, the 

 more responsive the system is and the 

 less fuel is required. Many a "sick" 

 system, so-called by heating engineers, 

 has been cured by the simple expedient 

 of putting it under pressure. 



There are a number of ways of put- 



