pr.'T"--^.-' 



IS 



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The Florists' Review 



OCIOBKH 2a, 1!J14 



under the ridge to.-the north end and 

 connect it with eight 1^-inch returns, 

 four of which should be placed under 

 each of the side benches. 



The location of the doors will perhaps 

 have something to do with the arrange- 

 ment of the piping in the other part 

 of the house, but I would run a 2i^-inch 

 main to the west end and, after drop- 

 ping it down, connect with coils run- 

 ning across the west end and down the 

 side walls. About 400 lineal feet of 1%- 

 inch pipe will be required to heat this 

 part of the house. If there are no 

 doors to prevent the carrying of the 

 coils along the exposed walls of the 

 four sides of the room, five lines of 

 1%-inch pipe will answer for each of 

 the coils, but if only a portion of the 

 walls can be utilized, the number of 

 pipes in the coils should be proportion- 

 ately increased. 



If the boiler, as seems to be indicated 

 by the sketch, can be placed only five 

 feet in the ground, the use of 1%-inch 

 pipe for the returns is not advisable 

 without using some fqrm of circulator 

 or generator. 



While one section of the sketch of 

 the main part of the house shows five 

 feet of space on one side of the ridge 

 and nine feet on the other, making a 

 width of fourteen feet, as already 

 stated, yet the ground plan shows a 

 width of twenty -two feet. For this 

 width two additional return pipes will 

 be required in each coil. I would pre- 

 fer to use four 2-inch pipes or two 

 3-inch pipes where I have suggested 

 using four 1%-inch returns. 



SCARCELY ENOUGH PIPING. 



We are building a greenhouse, 42i/^x 

 150. It is of iron-frame construction, 

 with concrete walls and with thirty-six 

 inches of glass in each side. In this 

 part of North Carolina the outside tem- 

 perature rarely drops lower than 15 de- 

 grees above zero; perhaps once in a few 

 years it falls to 5 or 6 degrees above 

 zero. We are planning to heat the house 

 with two 2-inch mains, one 2i/^-inch 

 main and eight 1^-inch returns. Would 

 that be enough piping to heat the house 

 to 60 degrees? J. L. 0. 



While it would be possible to main- 

 tain the temperature mentioned in ordi- 

 nary winter weather with the radiation 

 suggested, by carrying some pressure, I 

 would prefer to use twelve returns, 

 which would keep up the temperature 

 even though it drops to 10 degrees above 

 zero outside. There is no particular ob- 

 jection to using the 2i4-inch main, but 

 unless the pipe is on hand, I would liavo 

 all of the mains 2-inch. 



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