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92 



The Florists' Review 



AOGDST 28, 1913. 



for growing lettuce and vegetable 

 plantH are not piped for more than 55 

 degrees, and this temperature can be 

 secured in a house 20x75 feet by using 

 three 2^^-inch flows and eight 2-inch 

 returns. In case 65 degrees is desired, 

 twelve returns should be used. With 

 4-inch pipe, use two flows and Bix re- 

 turns for 5§ degrees, or two flows and 

 eight returns for 65 degrees. 



A MINNESOTA ROSE HOUSE. 



As I am about ready to do my steam- 

 fitting, I should be glad to get a little 

 advice as to how many pipes will be 

 needed for a rose house 18x100 feet. I 

 intend to put in a 2-inch main and 1^4:- 

 inch returns. I have a steam boiler, 

 which is set' down seven feet below 

 the level of the ground; that is suffi- 

 •ciently low, I think, to secure a good 

 return to the boiler. 



J. P. D. 



The winter temperature outdoors is 

 not stated, but if it does not drop 

 lower than 30 degrees below zero, one 

 2-inch main, which may be a foot or 

 more under the ridge, and eight 1%- 

 inch returns would answer, provided 

 there is no glass in the side walls. The 

 top of the boiler should be at least 

 two feet below the returns. 



HEATING SYSTEM A FAILUEE. 



I have a greenhouse 8x50 feet and six 

 feet high to the eaves, with a one- 

 third-pitch roof and two feet of glass 

 along the sides. I desire to maintain 

 a minimum temperature of 70 degrees 

 in this California climate, where the 

 <)utside temperature occasionally drops 

 to 24 degrees at night in winter. I 

 have an upright hot water boiler, three 

 feet in diameter and five feet high, set 

 in a cellar seven feet deep and tapped 

 on the side for two 3-inch pipes, one 

 at the top and the other at the bottom. 

 Attached to the 3-inch outlet are two 

 lines of ll^-inch pipe, which run the 

 full length of the house and return. 

 The outflow pipes are directly under 

 the benches, with a rise of a foot to 

 the far end of the house, where they 

 arch over the door and return to the 

 boiler a foot below the outflow pipes. 



This arrangement is ridiculously in- 

 adequate. The circulation is poor and 

 I could not get the temperature above 

 40 degrees last winter. How many lines 

 of li^-inch pipe should the 3-inch out- 

 let supply and how should the out- 

 flow pipes be placed above the benches! 

 Should I tap the boiler for a larger pipe 

 or is a 3-inch pipe sufficient f Would 

 the fact that the boiler is necessarily 

 tapped on the side, with the great num- 

 ber of angles in the pipes, account for 

 the failure of the water to circulate? 

 I hope you can inform me how to ar- 

 range this small system so it will work 

 properly and give results. As it is, it 

 Is only a source of annoyance. 



C. L. W. 



The trouble experienced in heating 

 the greenhouse is evidently due to sev- 

 eral causes, one of which is the insuffi- 

 ■cient amount of radiation, which is but 

 one-half what it should be. The fact 

 that the flow pipes have several angles 

 will make less difference than placing 

 them under the benches and running 

 them uphill. 



The simplest method of heating the 

 bouse would be to run a 2i4-inch main 

 under the ridge, and at the farther 

 «nd of the house branch it in either 



WHEN YOU BUY- GET A KROESCHELL 

 "THE BOILER OF UNEQUALED FUEL ECONOMY" 



KROESCHELL REPLACES THREE CAST IRON BOILERS 



Range of Alexander A. Laub, New Hamburg, N. Y., heated by No. 6 Kroescbell Boiler. 



We do not have to fire our boiler as often as our brother florists who 

 are using different makes. The Kroeschell has replaced three cast iron 

 sectional boilers, and it certainly has given entire satisfaction. 

 It only takes a few words to express the good duality of your boilers 

 and they are as follows: "Of all firms handling boilers and advertising 

 therti truthfully, the party buying a boiler would have to get tbe 

 Kroeschell. as you are certainly advertising nothing but facts." 

 July 18, 1913, New Hamburg, N. Y. (Sign^)^ ALEXANDER A. LAUB. 



KROESCHELL REPLACES FOUR CAST IRON BOILERS 



Range of A. B. Knowlton, No. Qrafton, Mass.— devoted to the growing of high-grade 

 carnations. No. 13 Kroeschell heats entire plant. 



Enclosed find photo showing partial view of my range which you are at 

 liberty to use in connection with any advertisement you pee fit. In 

 regard to the No. li! Kron»chell Boiler, we are row using it for the liftli 

 season. The Innger we use it the better we like it. It has taken the place of four cast 

 Iran boilers at a big saving of coal ani labar. No matter what the weather is 

 outside we have no trouble whatever in keeping the temperature just 

 where we want it. 

 January 10, 1912, North Qralton, Mass. (Signed) A. B. KNOWLTON. 



KROESCHELL REPLACES TWO CAST IRON BOILERS 



Range of H. M. Totman, Randolph, Vt.— the largest cut flower establishment in 

 Vermont. No. 7 Kroeschell heats the entire plant. 



Your No. 7 Kroeschell Boiler rated at 16.000 sq. ft. of glass Is carrying my 

 entire range of 17.000 sq. ft. of glass— it might heat more. We maintain 

 a temperature of M^ and have no trouble to keep the proper tempera- 

 tures in the coldest weather. During the cold snap of 1912 we fired 

 every three hours during the night: I find it a saving in fuel to fire 

 often. I have the Kroescbell Boiler six years and the only expense is 

 one Eet of grates. No other but a plate boiler for me. 

 January. 1912, Randolph, Vt. (Signed) H. M. TOTMAN. 



The customers' interest first— is the basis of the Kroeschell standard, and this principle 

 makes the Kroeschell policy the most liberal of all In the greenhouse boiler business. 



KROESCHELL BROS. CO., 



444 W. Eri« Street 

 CHICAGO, ILL. 



