140 



The Florists^ Review 



Januart 26. 1U22 



Greenhouse Heating 



HEATING EIGHT HOUSES. 



Enclosed herewith is a diagram of our 

 ranjre. The heating system consists of 

 a tubular boiler 3%xl*0 feet, which has 

 tM'enty 4-inch flues. After giving this 

 diagram a thorough perusal, can you in- 

 struct us how to install the piping and 

 also advise us which system would be 

 best adapted to heat these houses? 



McC. Bros.— O. 



While other systems might be used for 

 heating the range shown in the sketch, 

 it would be advisable, all things being 

 considered, to use a low-pressure steam 

 gravity system, which will be most satis- 

 factory. 



The range consists of eight green- 

 houses arranged in the form of a solid 

 square, measuring about 117 feet on a 

 side. The exposed walls are of cement, 

 six feet high, except that one house, 23x 

 65 feet, has three feet of glass in one 

 wall. 



The temperatures desired range from 

 60 to 70 degrees and, as nearly 3,000 

 square feet of radiation will be required, 

 including the mains, it would overtax 

 the boiler described, the capacity of 

 which is not more than twenty-five horse- 

 power. To heat the range easily, select 

 a boiler with about forty-eight 3-inch 

 tubes, and twelve feet in length, of ap- 

 proximately fifty horsepower. 



For heating house No. 1, 23x65 feet, 

 with three feet of glass in one wall, to 

 65 degrees, use one 2-inch overhead flow 

 and eleven 1 14-inch returns. Houses 

 Nos. 2 and 3, of the same size, but with- 

 out an exposed wall, will require only 

 nine returns for 65 degrees. House No. 4 

 will require eleven returns for 70 de- 

 grees. House No. 5, 20x117 feet, should 

 have one 2i,l>-inch flow and six returns 

 in addition to a 2%-inch flow pipe 

 passing Ihrough this house to supply 

 houses Nos. 7 and 8. In case the flow- 

 pipe to houses Nos. 7 and 8 docs not 

 pass tlirougli house No. 5, two additional 

 returns will be needed. For house No. 

 6, 10x90 foot, for 70 degrees use one 

 2-inch flow and five 114-inch returns. 



House No. 



2x70 foet, with one wall 



of conient six feet high, should have one 

 2-inch flow pipe and nine IVt-ineh re- 

 turns for GO degrees, while house No. 8, 

 28x70 foet, to he heated to 60 degrees, 

 will require one 2-inch flow and eleven 

 returns. In all of the houses the flow 

 pipes should be carried about three feet 

 below the ridge and the returns should 

 be distributed under the benches, placing 

 one extra pipe in the coils along the side 

 walls. 



HEATING ONE OR TWO HOUSES. 



Can 3'ou toll 1110 wliic-h of the follow- 

 ing flcscribeil grocnhoiisos would bo the 

 easier to lioat, a liouse ilGxOG fo(>t or 

 one 56x192 foot? Wli.at size of steam and 

 hot water boilers will bo required tn 

 heat these houses to 60 degrees where 

 the temperature never goes below 28 

 degrees above zero? If the number of 

 the above-mentioned houses is multi- 

 plied by six anil tliree rospectively. how 

 large a steam or hot water boiler will 

 be required. L. B. H. — Cal. 



There will be little di/Torouoe in llie 

 cost of heating the houses, nltliough 

 if the shcirtor houses are built sepa- 



Wrigley Building, Chicago. 



Kroeschell, To Be Sure 



To the many wonderful things of which Chicago boasts, there 

 has been added recently the Wrigley Building. It is one of 

 the largest office buildings in the city, and one of the most 

 beautiful to be found anywhere. Its design and construction 

 is perfect throughout. 



In such a large building, where there are hundreds of offices, 

 where the health and comfort of thousands of people must be 

 guarded, the heating system plays a part of tremendous im- 

 portance. This was realized by the designers of the Wrigley 

 Building, and the greatest care was taken in making specifi- 

 cations for the heating system. Two 250-horsepower Kroe- 

 schell Boilers were installed for heating the entire building. 



In selecting a boiler for your greenhouses, get the boiler that 

 has proved itself the most efficient in every way for greenhouse 

 heating. Get a Kroeschell and know you have the best. 



No Delay 



We anticipated a rush of orders this winter that will 

 re(iuire quick srevice, and we are prepared to ship any size 

 boiler at once. Telegraph or telephone your order at our 

 expense. Long distance phone, Superior 8680. Ask for green- 

 house department. You will get your boiler without delay. 



KROESCHELL BROS. CO. 



444 W. Erie Strett 



CHICAQO, ILL. 



