76 



The Weekly Florists^ Review* 



■iJiff!^mvi^r>'.*:: 



JCNB 22. 1911. 



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 Catalogue 



Test at 32® below zero; Kroeschell Boiler easj^ to 



fire with soft coal 



I have 7800 sq. ft. of glass; this boiler would take' care of about two trreenhoujes of the 

 1 same size. I maintain temperatures from 50" to 80°— did not have the least bit of trouble 

 when thermometer was 32° .belo\v zero. In zero weather fired at half past nine in the evening, 

 went to bed, slept all night, got up at five In the morning and found a good fire at that hour. 

 The boiler is giving the very best of jatisfartion. Yours Is the first hot water boiler I have 

 had in use, but have fired steam boilers of different makes. The Kroeschell i^ certainly the 

 best and qulokest-beattnc boU«r that I have had anything to do with. As to the 

 Kroeschell Generator,! would take no amount of money for it; lean run the water above 

 boiling point and have no trouble. I give your boiler, generator and piping system the 

 highest praise. F> H. Hamilton, R. F. D. No. 3, Robt>insdale. Minn. 



KROESCHELL BROS. CO., 444 W: Erie St., CHICAGO, ILL. 



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would be sufficient to maintain nearly 

 65 degrees, and if 50 degrees is all 

 that is required, the removal of eight 

 or ten of the pipes would bring the 

 radiation down where it should be, 

 and, as the main could then supply 

 these fairly well, the temperature would 

 be much more uniform. An even bet- 

 ter way to pipe the house would be to 

 put in five 2 ^^ -inch flow pipes and 

 twenty 2-inch returns. Or, if house 

 No. 2 is to be piped through the same 

 coils, use four 3-ineh flows and twenty 

 2-inch returns running through both 

 houses, to secure 55 degrees. 

 . For the rose house, 42x250 feet, iise 

 five 3-inch flows and twenty-five 2-inch 

 returns. Connect the boilers by means 

 of one 6-inch or two 5-inch flows, and 

 returns of the same size. Connect the 

 expansion pipes with the highest part 

 of- the flow and take off the mains to 

 the different houses. Eun these with a 

 slight fall through the houses and dis- 

 tribute them on the walls and posts or 

 suspend them from the roof, as will 

 be found most convenient. Also give 

 the returns a drop of one inch in 

 twenty feet. 



RADIATION IN DWELLINGS. 



In the reply to J. F. C, in The Re- 

 view of June 15, page 78, an error oc- 

 curred in giving the formula for esti- 

 mating the radiation required in the 

 dwelling. It should have read: For 

 the dwelling use as many square feet 

 of radiating surface as there are square 

 feet of exposed glass, plus ten per cent 

 of the area of exposed wall surface, or 

 five per cent of the wall surface when 

 adjacent to an unheated room, plus one 

 per cent of the cubic contents of the 

 room. 



MONTANA HOUSES AND LEAN-TO. 



What quantity of 2-inch piping, for 

 hot water, will be required to maiutain 

 a temperature of 50 degrees in houses 

 eighteen feet wide and seven feet liigh 

 to the gutter, when the outside temper- 

 ature is 10 degrees below zero? Please 

 state, also, what piping is necessary 

 for a temperature of 60 degrees in a 

 lean-to house eight feet wide and four 

 feet high to the gutter. A. E. S. 



The question does not state the length 

 of the houses, or the amount of glass, 

 if any, in the side walls, but the letter- 

 head shows two houses which appear 

 to be about 100 feet long and to have 

 about four feet of glass in the wall 

 which shows in the picture. For such 

 a house, eighteen feet wide, it will be 



The New 



** Detroit" Return Trap 



The only successful modifications in Tilting Traps made 

 in years have been embodied in the "Detroit." Improve- 

 ments in the design and construction of "Detroit" Traps 



have been made 

 possible by an- 

 other recently al- 

 lowed patent con- 

 trolled by this 

 company. 



In writing for 

 prices, advise 

 number of square 

 feet of glass in your 

 houses, together 

 with horse- power 

 of boiler and steam 

 pressure carried. 



America n BlowerGompany 



, DETROIT. MICH . ^-^— — . 



U. S. A. 



Menttcw The Beview when yon write. 



"SUPERIOR" 



To all others for Greenhouse Heating. 



tt 



Made In Nine (0) sizes tor Hot Water. 

 Send tor cataloKueland Ust of growers that are uslnc this boUer. 



Superior Machine & Boiler Works 



840-860 West Superior Street, CHICAGK), ILL. 



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