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The Florists^ Review 



Sbftsmbbb 25, 1919. 



CreenhoBse Heating 



SoBSOBiBEBS are invited to write the 

 Editor of this Department with regard to 

 any details of greenhouse heating that 

 are not understood. When information 

 ia desired regarding the capacity of boil- 

 ers, or the amount of radiation required 

 for a greenhouse, the needed temperatures 

 ahould be stated in the inquiry, as well 

 as the amount of glass in the side walls, 

 and the dimenidons and general arrange- 

 ment of the greenhouses. It is often help- 

 ful, idso, to have a sketch showing the 

 location of the houses. 



PIPING HOUSE AND I.EAN-TO. 



My greenhouse is 29x100 feet, with a 

 lean-to, 10x100 feet, on the east side. 

 The lean-to has three feet of cement and 

 eighteen inches of glass in the east wall, 

 while the west wall of the greenhouse 

 proper has five feet of glass and three 

 feet of wood. The boiler is located near 

 the middle of the south end of the main 

 house. There is the equivalent of 5,400 

 square feet of glass, and 1,436 square 

 feet of radiation will be required to 

 heat it to 55 degrees. The boiler is 

 rated for 2,325 square feet of radiation, 

 and will use soft coal. 



How many flows will be needed? 

 What size should they be and where 

 should they be placed? How many 

 2-inch returns should be used, and 

 where should the coils be located? 



W. E. L.— Ohio. 



For the main house we should use 

 three 2^-inch overhead mains, with ten 

 2-inch pipes for the returns. In the nar- 

 row house use two 2i/^-inch pipes as 

 flows, and four 2-inch returns. Place 

 one flow pipe on each side plate and 

 arrange the other pipes under the 

 benches. 



STEAM HEATING GXTIDES. 



Please tell me where I can get the 

 best book on steam heating. 



My new houses are to be four con- 

 nected houses, 25x175 feet, with 9-foot 

 gutters and 17-foot ridge. The north 

 side of the houses is to be boarded up, 

 and the south side is to have six feet 

 of glass and three feet of boards. I 

 want to heat them to 60 degrees when 

 the outside temperature is zero. What 

 size of boiler will it take and how much 

 radiation? What size should the steam 

 main flow be? Would 4-inch pipe be 

 all right? What size of return main 

 should I have? L. K. M.— Pa. 



For information upon heating green- 

 houses, by either steam or hot water, 

 we should recommend "Greenhouse 

 Construction," by L. R. Taft. "Green- 

 house Management," by the same au- 

 thor, also deals to some extent with the 

 heating of greenhouses for special pur- 

 I>ose8, as well as with the culture of the 

 leading florists' crops, including green- 

 house vegetables. Either of these books 

 will be sent, postpaid, from this office 

 for $1.50. 



For the four houses described we 

 should use a steam boiler rated for fifty 

 horsepower. For low-pressure steam 

 we should start from the boiler with a 

 5-inch main, and where it branches 

 would rnn a 4-inch main in either direc- 

 tion, reducing them to three inches af- 

 ter taking off the first house. A 3-inch 



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KROESCHELL 



GREENHOUSE SPECIALTIES 



HEATING and COOLING are two branches of engineering on 



which we specialise for the greenhouse trade. 



Over thirty years have been devoted by us to the construction and 



designing of boilers and refrigerating apparatus. 



During this period we have furnished and installed heating and 



cooling systems for the most successful greenhouse men in this 



country. 



Tub«l«ss Boiler 



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KROESCHELL Boilers ire making the most wonderful greenhouse 

 heating record in the world. Florists who have used other makes 

 are constantly giving the KROESCHELL the highest praise. 



KROESCHELL: 



MRticWATtRTUBt 



BOILER. 



The High Pressure Kroeschell— a highly efficient unit for steam 

 plants 100 H. P. and over. 



13,468, 320 so. ft. of glass was equipped with KROESCHELL Boilers 

 during the past five years. 



Water Tube Steam Boiler 



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When in need of refrigeration investigate the Kroeschell System- 

 its high efficieni;y and low cost of operation place the Kroeschell 

 System of Refrigeration in the foremost rank for greenhouse use. 

 Our system of Refrigeration and Cooling is easily installed— per- 

 fect control of temperature an:l absolute safety insured— no am- 

 monia used for this system. 



Safety 



CO, 



Ectaomy 



Afflmoaia 

 Used 



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.Send for Boiler or lee Machine Catalogues. 

 State which is wanted. 



BUY DIRECT-FACTORY TO USER PRICES 



KROESCHELL BROS. CO, 

 " KROESCHELL BROS. ICE MACH. CO. 



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444 W. Erie Street, ■ 

 CHICAGO, ILL. Q 



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