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112 



Xhc Florists^ -Review 



Jandart 1, 1920. 



Greenhouse Heating 



EEBOSENE FOB BOIIJiB SOALE. 



In .The Review for .November 6 it 

 was said in this department that kero- 

 sene was useful in removing boiler 

 scale. Please tell me how the kerosene 

 should be used. Is it to be put with the 

 water into the boiler and left there, or 

 must the water be drained off from the 

 boiler before the kerosene is added and 

 the kerosene later removed before wa- 

 ter is again let into the boiler t 



C. G.— la. 



To prevent the formation of scale in 

 boilers, kerosene (coal oil) should be put 

 into the boiler in the easiest way pos- 

 sible and allowed to remain there. After 

 a nionth or two, depending upon the 

 amount of lime, etc., in the water, re- 

 peat the treatment. There is no real 

 occasion for drawing off the water be- 

 fore the oil is added, although it is well 

 to do this, removing as much of the scale 

 as possible and washing out the boiler. 



At best, the scale in boilers is a dif- 

 ficult thing to handle, but kerosene ap- 

 pears to answer about as well as the 

 various "scale removers," both for 

 loosening the scale on the boiler tubes 

 and for preventing the formation of 

 scale. 



RUST IN HEATING SYSTEM. 



We operate 35,000 feet of glass, which 

 was erected in 1909. After about five 

 years we noticed leaks here and there 

 in the threads of some of the return 

 pipes. Every year the trouble has grown 

 worse, until now we have many such 

 leaks. The threads are almost eaten out 

 and all the inside of both boilers and 

 pipes is red with rust. There is no trace 

 of lime. Please tell us how to relieve 

 this trouble. Is there a boiler compound 

 that will help? F. F.— 111. 



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The various boiler compounds are not 

 designed to stop the leaks in boilers 

 and piping, but rather to loosen tlie 

 scale in the boilers and to prevent its 

 formation. They may often increase 

 rather than lessen the leaks. 



While it is not recommended for the 

 purpose of closing the leaks in the ra- 

 diation, ordinary kerosene (coal oil) is 

 not only an excellent substitute for the 

 commercial boiler compounds, but it will 

 also lessen both the rusting of the coils 

 from the inside and the "wear" which 

 takes place along the bottom of the 

 pipes. In coils which have been in use 

 for a long time, the part of the pipe 

 on the bottom la quite thin, while the 

 remainder appears but^ittle worn. This 

 may be explained by the fact that when 

 the inside of the pipe is allowed to be- 

 come rusted (oxidized), the rust is re- 

 moved along the bottom by the water 

 running back to the boiler; thus a fresh 

 surface is exposed and a channel is 

 formed, along the bottom of the pipe, 

 which will wear, or rust, through long 

 before the other parts of the pipe. 



The use of Icerosene checks the oxida- 

 tion upon the interior of the pipe. When 

 the threads on the exterior have become 

 rusted, after the rust has been removed 

 by means of a steel brush or sandpaper, 

 the durability of the pipes can be con- 

 siderably increased by covering them 

 with a rather thick paint of lampblack 

 and linseed oil. Painting the joints only 



'' The Boiler of Unequaled Fuel Economy " 



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KROESCHELL BOILERS have no bulky, 

 soot-accumulating surfaces— you avoid the 

 disagreeable work and trouble indispensable 

 to cleaning boilers with complicated and 

 X tortuous back and forth fire passages. 



The superiority of our boilers has resulted in the removal 

 and abolishment of hundreds of cast iron sectional boilers 

 -in every instance KROESCHELL BOILERS give more 

 heat with the same piping with less fuel.! . - .' 



N-O-T C-A-S-T l-R-O-N 



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D There is a Kroeschell 

 for every greenhouse 

 U plant, be it large or 

 p. small. 



The Kroeschell will D 

 put high teni peratures 



into your heating ■ 



lines. r-i 



N-O-T C-A-S-T l-R-O- 



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Rose Range of Riverbank Greenhouses, Geneva, III. Charle$'^4cQiuley, Supt. 



Heated by No, 15 Kroeschell Boiler. Kroeschell 2-inch Return Piping System and Kroeschell 

 Generator, Greenhouses each 28 feet by 200 feet. Garland Construction. 



The mains are arranged to take care of a future addition of 40,00') aq. ft. of slass; 

 used throutfhout the entire range and each 2-ineh return line is controlled b^ 1-incn 



2- inch returns are 

 , gate valve (strictly a 



Kroeschell feature), insuring perfect control. It is a gravity job; the circulation is perfect, reaching the ex- 

 treme ends of range in fifteen minutes. The Kroeschell Generator (the high spsed gear for hot water heat- 

 ing) is also used for this system. 



"Your No. 15 Kroeschell Boiler heats our entire range. We maintain a temperature of 

 60 degrees in our greenhouses, and this temperature is easily maintained, even in the very 

 coldest weather. ^ our boiler has given entire satisfaction. It is the best and quickest 

 heater I have ever used or seen. I have found the boiler very economical in the use of fuel 

 and labor, as it is not necessary to use the best coal, and any labor will do for a fireman. 

 The Kroeschell Piping System with Generator works like a charm. When I want to sulphur, 

 I can heat the water up to 230 to 240 degrees and I get the same results as from steam. See- 

 ing is believing— all Growers are invited to call. Any further information concerning boiler 

 and piping system will be gladly given. We had a large number of florists at our place 

 recently, and they all thought we had the finest equipped plant in the business." 



THE RIVERBANK COMPANIES 

 CHARLES McCAULEY, Vice-Pies, and Mgr. 



WHEN YOU BUY-QET A KROESCHELL 



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: KROESCHELL BROS. CO., 



444 W. Erie Str««t ■ 

 CHICAGO, ILL. 



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