76 



The Florists^ Review 



June 28, 1917. 



H. H. UNEAWEAVER & CO.. Inc. 



""ir ' e o A |_ 



BITUMINOUS ^# \^ #% ■■ 



West End Trust Building. PHILADELPHIA 



17 Battery Place. NEW YORK 

 Nutting Building LEBANON, PA. 

 Mention The ReTlew when yon write. 



Greenhouse Heiating. 



SxTQSCBiBERS are invited to write the 

 Editor of this Department with regard to 

 any details of greenhouse heating that 

 are not understood. But please do not 

 ask The Beview to make a choice of ap- 

 paratus for you. The greenhouse heating 

 equipment advertised in this paper is, we 

 believe, the best for the trade to buy, 

 and each article the best in the special 

 field of its adaptation. 



WILL INSTALL A NEW SYSTEM. 



As I am about to install a new boiler 

 for my greenhouses, I should like to 

 have your advice on the matter. My 

 two greenhouses run nortli and south. 

 They are connected and each measures 

 12x30. They are about six feet high to 

 the eaves and nine feet to the ridge, 

 with two feet of glass in the east side. 

 The north end and east side of the 

 houses are exposed. The west side is 

 protected by a pottihi^ shed, which is 

 connected to the greenhouses. 



At present I have a small boiler, lo- 

 cated at the south end of the green- 

 houses. Though I put in the piping ac- 

 cording to an expert's directions, it 

 does not work well. My intention is 

 that the new boiler shall be large 

 enough to take care of the present 

 houses and four or five others which I 

 may add soon. I have made a con- 

 crete pit at the north end of the potting 

 room and intend to place the. new boiler 

 there. I have a lot of 1-inch pipe which 

 I should like to use if possible, and I 

 also have some l^/l>-inch pipe. Please 

 tell me just how to pipe my houses and 

 what size of boiler to buy. The temper- 

 ature in the houses is to be 60 degrees 

 when the outside tem])erature is 15 de- 

 grees above zero. That is about as cold 

 as the winters generallv get here. 



' S. S.— La. 



Had the letter described the present 

 method of j»iping and stated tlie num- 

 ber of feet of each size of pipe availa- 

 ble for use, we should have been able 

 to offer more definite suggestions and 

 to plan for the use of the pipe on hand 

 to l)etter advantage. 



Wliile we would prefer to use in 

 each liouse one 2i/2-inch overhead 

 main, carrying it about eighteen 

 inches below the ridge, it will answer, 

 if two 2-inch flow pi])es are substi- 

 tuted. Tliese should be on tlie wall 

 plates. For the coils we suggest the 

 jiutting in of seven P/o-inch returns, 

 liliuing four on the east wall or under 

 the side bench, and three on the other 

 side of the house. 



In case the coils are well above the 

 to]) of tlie boiler, it will be possible to 

 substitute 1-inch pipes in the coils, 

 using three 1-inch in place of two 

 114-inch pipes. Give the flow, as well 

 as the return pipes, a slight fall, and 

 connect the highest point in tlie flow 

 witli the expansion tank. In locating 

 the coils, especially if the to]) of the 

 boiler is not below the level of the floor, 



THE REWARD OF MERIT 



The White House Greenhoiues-U.S. Propagating Gardens 

 Washington, D. C. 



HEATED BY KROESCHELL BOILERS 



The Conservatories of the President 

 of the United States and the U. S. Prop- 

 agating Gardens are located opposite 

 the Washington monument at Washing- 

 ton, 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, Cal., 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 Garret Park, ]\Id. 



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

 Field Station, at Mandan, N. D., ordered a No. 7 KROESCHELL 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, Wash- 

 ington, D. C. 



WHEN YOU BUY- 

 GET A KROESCHELL 



"The Boiler of Unequaled Fuel Economy" 

 BUY DIRECT-FACTORY TO USER PRICES 



KROESCHELL BROS. CO., 



444 W«8t Eri* 8tr«et, 



CHICAGO, ILL. 



