116 



The Florists^ Review 



JUNB 30, 1921 



Franklin and Willianuon Coonty 



COAL 



BUY IT DIRECT FOR LESS MONEY 



Save Middleman's Exorbitant Profit. 

 HigkcttTMli-HMCtt Wcitkl-Pronpt Shipant. 



Write me today your needs and grade used. 

 Quotations will be made by next mail. 



We advise placing orders now. 



J. A. WARD, 



Herrin, - Illinois. 



Greenhouse Heating 



Subscribers are invited to write the 

 editor of this department with regard to 

 any details of greenhouse heating that 

 .are not understood. When information 

 is desired regarding the capacity of boil- 

 ■ers, or the amount of radiation required 

 for a greenhouse, the needed temperatures 

 should be stated in the inquiry, as well 

 as the amount of glass in the side walls, 

 and the dimensions and general arrange- 

 ment of the greenhouses. It is often 

 helpful, also, to have a sketch showing 

 Ihe location of the houses. 



BOILERS IN A BATTERY. 



I should like to get information about 

 connecting boilers in a battery. I have 

 two boilers, one 22-5, the other 22-7, 

 American Ideal boilers. One has two 

 flows and four returns, while the other 

 has three flows and six returns. Is it 

 correct to use tees and ells to connect 

 the two or three flows together, and 

 to place a valve before connecting the 

 front line, from which the pipes will 

 branch off to the houses? And can the 

 same be done with the returns? Will 

 it make any difference if the returns 

 are connected to one side of the boiler 

 only? What size of stack should be 

 used for a boiler with a grate, 24x48 

 inches? A. J. L.— Mo. 



While it may be somewhat modified 

 by the location of the boilers and the 

 arrangement of the piping, if two or 

 more boilers are to be connected so that 

 one or more may be used for heating 

 a part or all of a range of greenhouses, 

 the simplest way of doing it will be 

 by connecting all of the flow ports of 

 €ach boiler with one or two headers 

 large enough to handle the full capacity 

 of the boiler. Then all of these headers 

 are connected with oue or more main 

 headers, large enough to supply all of 

 the radiation in the range. The return 

 ports of the boilers should be con- 

 nected in the same way. 



In some boilers it will answer if the 

 return ports on one side only are con- 

 nected, provided they will return all of 

 the water that a boiler will handle, but 

 when boilers have vertical sections the 

 returns should be connected with both 

 sides. 



So far as the actual operation of 

 a battery of boilers is concerned, it 

 will make no difference whether valves 

 are used or not, as a boiler that is 

 not being fired is cut out of the system. 

 However, valves are always desirable 

 upon the flows and returns from each 

 boiler to the main header, as it will then 

 be possible to cut off any of the boilers 



BUY A 

 KROESCHELL 



When a man who is using a Kroeschell Boiler after having had 

 experience with other boilers tells you to buy a Kroeschell, 

 you are safe in following his advice. And that is what he 

 will tell you every time. 



There is more glass heated by Kroeschell Greenhouse Boil- 

 ers than by any other make, and our factory is always kept 

 going at full force to keep up with orders coming in. This 

 alone should convince you that the Kroeschell is the best 

 boiler you can get. 



Kroeschell Boilers are sold direct at factory prices, and they 

 soon save enough fuel to pay for themselves. They are 

 highest in both efficiency and economy. No matter how 

 you figure you will always come to the one conclusion that 

 the best thing to do is to buy a Kroeschell. 



.I'i^-'r^^i*^ "^^ 





KROESCHELL BOILERS have satisfactorily and per- 

 manently solved the effective burning of screenings. They 

 will burn the worst grades of coal, even the dirtiest culm 

 or sawdust and wood refuse. 



CAN SHIP 

 ANY SIZE 

 AT ONCK 



NOT 



CAST 

 IRON 



NOT 

 CAST 

 IRON 



TELEGRAPH 



ORDERS AT 



OUR EXPENSE 



WHEN YOU BUY-OET A KROESCHELL 



KROESCHELL BROS. CO., 



444 W. Eria Str««t 

 CHICAGO, ILL. 



