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114 



The Weekly Florists^ Review^ 



Dbcembeb 15, 1910. 



MONTGOMERY COUNTY COAL CO. 



COAL or mm 



FISHBR BUILDHVG, CBMCAC50 



Mention The Review when you write. 



Greenhouse Heating. 



November was h month of unusually 

 heavy coal consumption in greenhfWses, 

 and December has started out the same 

 way. Better have the bins full when 

 the big storms come to tie up the rail- 

 roads. 



DEFECTIVE INSTALLATION. 



I should like to get a little informa- 

 tion in regard to my greenhouse, as the 

 piping does not heat as it should. 

 The house runs north and south. It is 

 13x45, eight feet high at the center and 

 three feet at the sides, with twelve 

 inches of glass in the east wall. 



There are five lengths of l^d-inch 

 hot water pipe on each side, as returns, 

 and two lengths of 2-inch pipe as flows. 

 My heater is not as low as I should 

 like, as the flow has only two feet of 

 rise at the heater and it rises about six 

 inches in the forty-five feet. The re- 

 turns drop about six inches in the 

 length of the house and about eighteen 

 inches more at the heater. The flow 

 pipes are connected to the bottom of 

 the coils. I am located in Massachu- 

 setts. I have a Spence heater. No. 50. 

 Can you tell me what is the reason for 

 my trouble? E. O. P. 



In addition to the difficulty men- 

 tioned—that is, the relative heights of 

 the heater and the coils — there are 

 probably three things which affect the 

 circulation, and two of these can be 

 readily corrected. The third defect, 

 which would require a complete change 

 in the returns, is that 1%,-inch pipe is 

 used for hot water. This should only be 

 used when the coils are well above the 

 top of the heater and when' the houses 

 are quite short, unless a closed system 

 is installed. 



The temperature desired is not 

 stated, but the amount of radiation in 

 the house is sufficient for 60 degrees. 



The two things that may be done to 

 improve the circulation are: To run 

 the flow pipe at a slight fall, after 

 raising it as high as possible, and to 

 connect the flow pipes to the top of the 

 coils instead of to the bottom. 



PIPING A CUCUMBER HOUSE. 



I wish to pipe a house for cucumbers. 

 Please tell me how much piping to use 

 for hot water, in this Massachusetts 

 climate, making perhaps three-quarters 

 of the pipes 2-inch and the rest IVi- 

 inch. The house is 20x50, with 12-foot 

 rafters. There are 1,200 square feet of 

 glass in the roof, 300 in the sides and 

 250 in the ends, making a total of 1,750 

 square feet of glass. There is no other 

 exposed surface. A. F. J. 



While 114 -inch hot water pipe may 

 be used with fair results in houses fifty 

 feet in length, especially if the piping 

 can be carried well above the top of 

 the heater, the amount of radiation re- 

 quired in a cucumber house is so great 



Succesiont to the 

 Jobn Davis Company 



No loss from sudden drops in 

 temperature if you use the 



Hughson Regulating Valve 



In connection with a steam heating plant. Carry 40 or 

 50 pounds pressure on the boiler and set the valve for 5 

 or 10 pounds— it will do the rest. You'll be free from 

 worry this winter, if you follow this advice: " Install a 

 HuKhaon ResuIatlnBr Valve when making yoqr 

 repairs." Ask for our Catalosrue. which also shows 

 Steam Traps and other devices. 



HUGHSON STEAM SPECIALTY CO. 



5021-5023 S. State St., CHICAGO, ILL. 



Mention The Review when you write. 



IMICO 



Hot Water Boilers 



Made by 



lUINOIS MALLEABLE IRON GO. 



1801-1825 Diversey Boulevard 



CHICAGO 



Are noted for coal economy and 

 flfood results g^enerally 



SKND FOR CATALOGUK 



Mention The Review when you write. 



The Standard 

 Steam Trap 



Is acknowledged the best for the 

 florist, because it is durable and does 

 its work without trouble and annoy- 

 ance. saving its cost by the economy 

 in coal bills. 



L HIPPARD, Youngstown, Ohio 



Mention The Review when vou write. 



HARRISBURG-rRANKLIN COAL CO. 



1816 FISHER BLDG., CHICAGO 



The Better Grades ONLT of 



INDIANA AND ILLINOIS COALS 



Preparation and Quality as tbey should be. Write to-day for Prices 



Mention The Review when you write. 



that it will be better to use 2-inch pipe 

 for the returns, and thus lessen the 

 number required. 



It is suggested that thr^e 2i^-inch 

 flows be used, one under the ridge and 

 the others on the plates, starting from 

 the heater either with one 3i/^-inch pipe 

 or three 2i/.-inch, according to the 

 openings. Carry the flows to a height 

 one foot below the bottom of the ridge, 

 and connect with the expansion tank. 

 Then run the flows through the house. 



SMITH, UNEAWEAVER & CO. 



COAL 



lathraelt*. Bltsmlaoui, Coke and Bu Coal 



r^'S.SSL,. Philadelphia 



Always mention the Florists' Review when 

 writing; advertisers. 



