72 



The Florists' Review 



July 13, 1916. 



COAL 



rar COAL write te 



MITCHELL & DILLON 

 COAL CO. 



Bedford Building, CHICAGO 



W« can sav* y«u wnmnmy, 



Mention The Reylew ■when yon write. 



H. H. LINEAWEAVER & CO., Inc 



ANTHRACITE 



and 

 BnUMINOUS 

 Weat End Trust Building, PHILADELPHIA 



17 Battery Place. NEW TORK 



Nutting Building, LEBANON. PA. 



Mention The Rerlew when yon write. 



Greenhouse Heating. 



THREE FLOWS ABE NEEDED. 



I am about to erect one house, 25x 

 60, with three feet of glass in each side 

 wall and glass in one gable. Will you 

 advise me as to the heating, telling me 

 how many runs of 2-ineh pipe are re- 

 quired to maintain a temperature of 

 60 degrees in zero weather? Would 

 two 21^-inch flow pipes and fourteen 

 2-inch returns be about right! 



E. N. J.— Mich. 



While the arrangement of pipes sug- 

 gested might be used, it would require 

 frequent attention and heavy firing in 

 zero weather and would be wasteful of 

 labor and material. We would prefer 

 to use three 2V^-inch flow pipes and 

 fifteen 2-inch returns. One flow may 

 be placed upon each plate and the other 

 three or four feet below the ridge. 

 Connect the highest point of each flow 

 pipe with the expansion tank and give 

 all of the pipes a slight fall, so that 

 the air cannot pocket. Join five re- 

 turns to each flow pipe and place one 

 coil on each wall or under the side 

 benches, distributing the remaining 

 pipes under the middle benches. 



EXPANSION TANK UNDER EIDGE. 



Can you give me some information 

 about the heating of the greenhouse 

 which is shown in the enclosed sketch? 

 I have a Wilks boiler, 24x48. It has 

 two 2-inch outlets and three 2-inch 

 openings for returns. Please state how 

 to pipe the house and how to locate the 

 expansion tank. My plan is to connect 

 the two 2-inch risers with a 4-inch flow 

 pipe, run the 4-inch pipe under the 

 ridge to the farther end, and there 

 have it branch so as to feed one 4- 

 inch return under each of the outside 

 benches and two 4-inch returns under 

 iAth of the middle benches. There 

 would be a 4-inch main return from 

 ♦he south bench and the two middle 

 benches, while the north main return 

 would run directly to the boiler, after 

 being reduced to 2-inch. I wish to hold 

 the temperature at 65 to 70 degrees in 

 zero weather. A mixed stock for retail 

 will be grown. I can only place the 

 expansion tank in the greenhouse, un- 

 der the ridge. Will it be high enough 

 there? A. F. W.— HI. 



The sketch shows the house to be 

 22x100, with eighteen inches of glass in 

 one wall. There is a bench three feet 

 wide along each side wall and there are 



THE REWARD OF MERIT 



Th« Whit* Hous* Qr««nhous«s-tl. S. 

 Prepasatlns Qardana 



Washlnsten, D. C. 

 HEATKD BY KROESCHILL ■•ILERS 



The Conservatories of the President of the United States and the 

 U. S. Propagating Gardens are located opposite the Washington monu- 

 ment at Washington, D. C. Over forty greenhouses are devoted to the 

 growing of cut flowers, orchids, stove plants, tropical and decorative 

 stock, and all bedding and ornamental plants for the U. S. Government 

 buildings and grounds at Washington. 



A No. 11 KROESCHELL BOILER was installed in 1906 for the 

 high temperature houses. This boiler replaced a number of other makes 

 and made a remarkable record for fuel economy. 



UNCLE SAM'S IRON FRAME RANGE ERECTED IN 1910 IS 

 HEATED BY KROESCHELL BOILERS. 



The Plant Introduction Garden of the United States Department of 

 Agriculture at Chico, California, is heated by No. 2 Kroeschell Boiler 

 and Generator System. 



In 1912 two No. 5 KROESCHELL BOILERS were installed for the 

 new range of the U. S. Department of Agriculture, at Garrett Park, Md. 



The U. S. Government's new establishment, the Northern Great 

 Plains Field Station, at Mandan, N. Dakota, ordered a No. 7 KROES- 

 CHELL BOILER for the new greenhouse range erected in 1913. 



August, 1914, two more No. 11 KROESCHELL BOILERS were 

 ordered for White House Conservatories and U. S. Propagating Gardens, 

 Washington, D. C. 



WHEN YOU BUY-GET A KROESCHELL 

 "Tha Bollar of Unaqualad Fual Economy" 



BUY DIRECT- FACTORY TO USER PRICES 



KROESCHELL BROS CO., 



444 WMt Irl* Stroot 

 CHICAQO, ILL. 



