'T:,fX.-y'r''y--'^f-*: 



70 



The Weekly FIbrists* Review. 



September 24, 1908. 



and eiglit on the exposed side, will, I 

 believe, give sufficient heat and be a 

 satisfactory arrangement, with hot water. 

 This will permit the use of solid beds, 

 which 1 believe the best for these plants. 



* L. C. C. 



OIL AS FUEL. 



Which of the two is the cheaper for 

 obtaining steam heat in a greenhouse — 

 clean lump coal at 12 cents per bushel or 

 fuel oil at 7 cents per gallon, taking into 

 consideration time and labor? I have one 

 house, 20x75 feet, and am erecting an- 

 other of the same area. I heat with a 

 tubular, return flue boiler. Here, in 

 southeastern Iowa, I can obtain either 

 coal or oil at any time. O. K. E. S. 



I think the actual cost of heat will be 

 a little greater with the oil, but when 

 cost of firing and the removal of ashes 

 is considered I believe that the oil will 

 prove more economical. L. C. C. 



HEAT FOR A LEAN-TO. 



I have one greenhouse, 18x85 feet, and 

 eleven feet high to the ridge. The side 

 walls are three feet high, with no glass. 

 There is glass in both ends. I want to 

 build a iean-to, 6x60, at the west side 

 of the house, without extra piping. The 

 west side of the house, where the lean-to 

 is to be added, is too hot. There are 

 three 4-inch pipes on each side of the 

 house. The boiler is rated at 3,200 feet. 

 The west wall of the present house will 

 be removed, to admit the heat into the 

 lean-to, where I wish to maintain a tem- 

 perature of 40 degrees in zero weather. 

 I am located in western New York. 



T. W. 



If the house you now have is piped 

 with only six lines of 4-inch pipe, I doubt 

 if it will be safe to add the lean-to with- 

 out increasing the piping. If there were 

 eight lines of 4-inch pipe in the house, 

 then I think the lean-to could be safely 

 added. If you have only six pipes, I 

 think you had better plan to install two 

 lines of 4-inch pipe, to make it safe dur- 

 ing severe Aveather. L. C. C. 



DWELLING AND GREENHOUSE. 



I liave a greenhouse 28x92, running 

 east and west, with a barn at the west 

 end and a dwelling at the east end. The 

 boiler is in the barn and I want to heat 

 the dwelling by running a 2-inch flow 

 through the greenhouse to connect with 

 the radiators; also a 2-inch return back 

 to the boiler. The expansion tank is in 

 the barn and will be only six inches 

 higher than the highest radiator in the 

 • dwelling. Will this work or must I 

 raise the tank? 



The greenhouse is piped with a 3-inch 

 flow along the purlin from the boiler to 

 the far end, where it branches and two 

 2-inch returns are carried under the 

 bench along the north wall beside the 

 flow and return for the dwelling, with 

 three 2-inch returns under each of the 

 next benches, and another branch 

 through the office with four 2-ineh re- 

 turns under the south bench, all con- 

 necting into a 3-inch return near the 

 boiler. The boiler is four feet below 

 the lowest return. The expansion tank 

 is fifteen feet above the boiler and con- 

 nected with the 3-inch return at the 

 boiler with a 1-inch pipe. This makes 

 one 3-inch flow and twelve 2-inch returns 

 for the greenhouse, besides the flow and 



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EMERGENCY PIPE GUMPS 



To repair splits 

 and rust holes 

 on pipe. Made 

 of malleable 

 iron, and guar- 

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 the leaks. 



Send for cat- 

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Manufacturers 

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Steel "'VubuLr Boilers 



The most economical type of boiler for 

 Oreenhouse heating. Highly recommended 

 by well-known florists. 



JOHNSTON HEATING CO. 



138 E. 31st St., NEW YORK 



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^ SUPERIOR TO ALL OTHERS ^ 

 FOR HOT WATER HEATING 



return for the dwelling, 

 do you suggest? 



What changes 

 M. J. B. 



I believe you will find it necessary to 

 elevate the expansion tank. When the 

 plant is cool the whole system should be 

 full of water without forcing any into 

 the expansion tank. I fear that when 

 heat is put on, the tank will fill and over- 

 flow without forcing a good circulation 

 in the house radiators. You might carry 

 a pipe from the return end of the radi- 

 ator to the attic of the house, and place 

 the expansion tank there, or, if you have 

 a heavy chimney, you might bracket the 



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186 W. Snperior St., Cldeaco, III. 

 Write for Prices and Cataloirue 



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BisHrade Boilers 



aaSu. For GREENHOUSES 



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Florists' Review 



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