122 



The Florists' Review 



July 20, 1922 



Creenhonse 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 de- 

 sired regarding the capacity of boilers, or 

 the amount of radiation required for a 

 greenhouse, the needed temperatures 

 should be stated in the inquiry, as weU 

 as the amount of glass in the side walls, 

 and the dimensions and general arrange- 

 ment of the greenhouses. It is often help- 

 ful, also, to have a sketch showing the 

 location of the houses. 



LOCATING A BOILER. 



I can place a boiler either in the 

 southwest corner of my greenhouse or 

 in the northwest. To my mind the 

 northwest location is the better, because 

 our blizzards and cold winds strike at 

 that point, and these would blow the 

 heat over the house. Is my conclusion 

 right? C. A. S.— Va. 



The writer agrees with you as to the 

 location you consider best, but not for 

 the reason that you mention. In locating 

 a greenhouse boiler no attention is paid 

 to the direction of the cold winds, so far 

 as securing a circulation of the heat in 

 the house is concerned. Really, except 

 when a flue or stove is used, the boilers 

 are intentionally cut off from the green- 

 house proper as much as possible, and 

 little direct heat is obtained from them. 



One reason for locating the boiler at 

 the northwest corner of the house is 

 that the cliimney and whatever may be 

 provided as a boiler or work room will 

 not shade the greenhouse nearly so 

 much as if it were built at the south- 

 west corner of the house. 



If tlie l)oi1('r, cliimney and service 

 rooms are built at the northwest corner 

 of the honso, tliey will act as .a sort of 

 windbreak and make considerable dif- 

 ference in the amount of co.al recjuired 

 (luring the winter. 



HEAT FOR TWO HOUSES. 



I have two houses. One is 14x40; 

 it is four and one-half feet high to the 

 gutter, with twenty-four inches of glass 

 in the east wall, and is fourteen feet 

 high to the ridge. The other house is of 

 the same dimensions and the houses are 

 <-onnected. They run north and south, 

 the head house being to tlie north. 

 There is glass only on the e.'ist side of 

 the houses. Will you advise as to the 

 l>roper hot water arrangement to heat 

 to 45 to 55 degrees when the outside 

 temperature is 10 degrees below zero? 



L. J. S.— Pa. 



To hent the two houses, a boiler rated 

 at about 800 sfiuare feet of hot water 

 radiation should ]>c used. Tliis will 

 liave a grate about twenty-four inches 

 in diameter, and it will recjuire a 9-inch 

 smoke Jiipe. Although a smaller chim- 

 ney would answer, it would be advisable 

 to use one that is twelve inches in 

 diameter. If built of brick it may be 

 8x12 inches inside, l)ut it will be more 

 satisfactory if it is 12x12 inches. A 

 height of thirty feet, or a little more if 

 surrounded by high buildings, will be 

 satisfactory. 



To heat the houses, use three 2-inch 

 overhead flow pil)es, locating one on 

 each side wall plate and the other two 

 feet below the ridge. With each flow 

 pipe, supply n coil of two lV.>-iuch re- 



Kroeschell High Pressure 

 Steam Boilers 



Battery of Kroeschell High Pressure Return Tubular Steam Boilers 

 with Suspended Setting. 



The largest ranges of greenhouses in the 

 country, operated by the oldest and best growers, 

 are heated by Kroeschell Boilers. The judgment 

 of these growers is based on a thorough knowl- 

 of greenhouse requirements gained by years of 

 experience in the greenhouse business. Experi- 

 ence with all kinds of boilers has taught them 

 that Kroeschell boilers are best in every way. 

 That is why the big men in the growing business 

 select the Kroeschell for their big ranges. 



DON'T WAIT 



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No Tubas 

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No 

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 Required 



For Steam 



Plants 



Less Than 



100 



Horse Power 



Kroeschell Water Tube Steam Boiler 



WHEN YOU BUY- GET A KROESCHELL 

 'THE BOILER OF UNEQUALED FUEL ECONOMY" 



Brunswick- Kroeschell Co., 



444 West Erie Street 



CHICAGO, ILL. 



