92 



The Florists^ Review 



. I 



JDIY 3, 1913. 



will be needed for each,,liou8e^,to main- 

 tain a temperature of 70 degrees in 

 winter, in this Pennsylvania climate? 

 The houses will be separate. Which 

 would give the better results, placing 

 the pipes under the benches or on the 

 walls? If the houses are twenty feet 

 wide, five feet high to the eaves and 

 twelve feet high to the ridge, will the 

 roof pitch be suflScient? W, B. 



So far as the mere direction goes, it 

 will make little difference which way 

 the houses run, and unless there is some 

 reason, which is not apparent from the 

 letter, for running them north and 

 south, I would suggest building two 

 houses 20x80 feet. 



A grout wall eight inches thick should 

 answer, provided the ridges of the 

 houses are trussed, or supported by 

 posts, so that there will be no lateral 

 thrust. The proportions of cement, sand 

 and cinders will vary considerably with 

 the fineness of both sand and cinders. 

 If both are fairly coarse, one part of 

 cement would answer for two parts 

 of sand and four parts of cinders. 

 There should be enough sand to 

 fill all of the spaces in the cin- 

 ders, and as the fineness of the sand 

 increases the more cement will be 

 required, but it is not likely that any- 

 thing stronger than a 1-2-2 mixture 

 would be necessary. As soon as the 

 forms can be taken down from the 

 walls, the exposed surfaces should be 

 plastered, using one part of cement to 

 two of sand. This will tend not only 

 to improve the appearance and the 

 strength of the walls, but . by keeping 

 th«m dry will lessen the destructive ac- 

 tion of frost and prolong their exist- 

 ence. 



The pitch suggested would be about 

 35 degrees. This would be ample and 

 a height of eleven feet to the ridge 

 would give a pitch of 30 degrees, which 

 answers fairly well. My idea would 

 be to make the walls six feet high, with 

 three feet of glass in the south wall, 

 and have the ridge twelve feet high. 



To heat a house twenty feet wide to 

 70 degrees with steam would require 

 one 2-inch overhead flow pipe and 

 twelve 1%-inch returns. If 2-inch pipe 

 is to be used, I would suggest two 2-inch 

 flow pipes and eight returns. A part 

 of the returns, perhaps half, should be 

 on the walls and the others under the 

 benches. 



ONE ADDITIONAL HOUSE. 



I should like to ask you how much 

 piping will be needed to heat a green- 

 house twelve feet wide, five and one- 

 half feet high at the sides and eight 

 feet high at the center. There will be 

 two feet of glass in one side; the other 

 side will adjoin an old greenhouse. I 

 wish to heat the new house to 5.5 de- 

 grees, and the outside temperature 

 sometimes falls to 20 decrees below zero 

 in this part of Ohio. The house will 

 run north and south. I expect to put 

 in 2-inoh flows. How many 1 14 -inch 

 returns will be required? I have the 

 1%-inch and 2-inch pipe on hand. 



W. S. L. 



The letter does not give the length of 

 the house, nor does it state whether 

 steam or hot water is to be used for 

 heating. 



For heating the house with hot water, 

 the needed amount of radiation for 55 



R. Yunker'B New Ranse of Buu»e», '41 & Feet Luuk. 



Some years ago Mr. R. Yonker, ol Orand Rapids, Mich., built a small greenhouse for 

 growing vegetables under glass during the winter season. 



In those days the greenhouses were of low construction and a house 20 feet wide was 

 considered a big grtenbouse. 



HIS FIRST KROBSOHELI.. 



The business for the first season was very encouraging and the following year several additional 

 houses were added, and a Kroeschell hot water boiler was installed for the heating, 



TH£ NEW RANOB. 



The business has grown from a very small beginning, and today Mr. Yonker has the most up-to- 

 date range of vegetable houses in the state of Michigan. The new houses erected for Mr. Yonker 

 are of iron frame construction, each 34 feet wide and 276 feet long. The eaves or gutters are 11 

 feet high; this permits the placing of the beating pipes 6 feet or more above the beds. 



THE NEW KROESCHEL.I. STSTEBI DOES NOT REQUIRE A DEEP 



BOIL.ER PIT; THE BOILER MAT BE SET ON THE SAME 



LEVEL AS THE GREENHOUSE WALKS. 



The first boiler Mr. Yonker Installed was, of course, placed In a deep boiler pit. The No. 16 



Krotschell boiler Is set in shallow pit, the floor of which is only 24 inches below the level of the 



greenhouse beds. The old boiler pit was partially filled In and now can be used for growing 



either mushrooms or asparasms. 



The boiler is placed about 60 feet from the end of the 275-foot houses. The packing shed Is 



equipped with every labor-saving device and Is large enough for loading the large market 



wagons Indoors. The packlog shed is artificially lighted by gasoline lighting system and, of 



course, also is provided with telephones. 



In one corner of the service building you will find the neatly equipped office of Mr. R. Yonker: 



all business is transacted from this point. 



THE KROESCHELL PIPING SYSTEM. 



The KroescheU 4-lnch Threaded Tube Piping System is used for the new iron frame bouses. 



Tbe coils are 276 feet long. Kach return line Is controlled by 2-luch irate valve. The entire 



system is operated by gravity circulation. 



The mains for the new range consist of two 7-lnch pipe circuits for fiows and two 7-incb pipe 



circuits for returns. 



The piping for the old houses was not changed; new 6-inch pipe circuits for main flows and 



returns were installed to connect same with the new boiler. 



The 275-foot houses are connected and open across the entire range. These houses are planted 

 with a crop of one variety— an even temperature is necessary at every point. This is accom- 

 plished by KroescheU short circuits on cuntiuaons piping. 



The KroescheU heatinf; department can be proud of this heating system and it surely is a 



masterpiece. 

 P. S. (We predict that as our competitors gradually become acquainted with the KroescheU features of 

 Hot Water heat engineering tliey will t>e universally used.) 



A WORD OF PRAISE FOR THE BOILER. 



The range of Mr. Yonker covers a ground space of one square acre, and the glass exposure of these houses 



Is In the neighborhood of 54.180 square feet. The entire plant Is heat-d by the No. IB Kroesihell Boiler. We 



challenge any t)oller roanufa'turer or his agent to equal thn fuel economy of the KroescheU at Mils place. 



OKT THK KROESCHELL BOILER, IT IS MADE RIGHT AND HONESTLY RATED. 



EMPHATICALLY YES! THE KROESCHELL GIVES ENTIRE SATISFACTION. 



Your No. 16 Boiler has been able to take care of the houses very easily. 



We use Pocahontas coal, mine run. This coal should be fired with an intermission from one to 

 not more than three hours to trlve the \teat results. 



"Does the boiler give entire (atlsfactlon?" We will state emphatically: Yes! It ha* griven 

 perfect satisfaction. 



In regard to the plpintr system, would say that we do not see any room for Improvement. Also 

 in this case we are perfectly ratlsfled. 



We noticed that the clrcnlation In your boiler tube piping system Is much quicker than the old 

 •J-lnch plplog systems, although the water travels at Kast twice the distance with the new system 

 that It does In the oUI. 



Grand Rapids, Mich., January !», 1913. (Signed) R. YONKER. 



NOT 



CAST 



IRON 



NOT 



CAST 



IRON 



KROESCHELL BROS. CO.,'%'HrcAl';;, f£ 



Street 



