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The Florists' Review 



DICBMBBB 22, 1921 



Greenhouse Heating 



Subscribers are invited to write the 

 editor of this department with regard to 

 any details of greenhouse heating that are 

 not understood. When information is de- 

 sired regarding the capacity of boilers, or 

 the amount of radiation required for a 

 greenhouse, the needed temperatures 

 ediould be stated in the inquiry, as well 

 as the amount of glass in the side walls, 

 and the dimensions and general arrange- 

 ment of the greenhouses. It is often help- 

 ful, also, to have a sketch showing the 

 location of the houses. 



REMOVINa TAB FROM PIPES. 



Some time ago I purchased a green- 

 house from an estate and had it re- 

 moved to my place. The first time I fired 

 the boiler, the pipes began to smoke and 

 gave off an odor like that of burning 

 tar. As soon as the seeds which I had 

 planted in this house came up, they were 

 all killed, and so with a second batch 

 which I planted. I then got the pipes 

 as hot as possible, in an attempt to burn 

 this paint off, but this did not work, so 

 rather than have the third batch of seed- 

 lings killed, I used a stove for heating, 

 with the result that my plants grew 

 well. 



Can you tell me the quickest and 

 surest method of removing this paint 

 from the pipes, so that it will not give 

 me any trouble next spring! Would you 

 advise heavy firing for a week or would 

 you take the pipes out and burn the tar 

 off in a fire? Any advice will be greatly 

 appreciated! F. J. K. — O. 



Your trouble is undoubtedly due to the 

 tar on the pipes, but while it may be 

 possible to burn this tar off with the 

 pipes still in position, there will be lit- 

 tle saved in time, and from a safety 

 standpoint it will be better to remove 

 the tar by taking the pipes out and 

 burning it off in a fire. 



HEATING SIDE-HILL HOUSE. 



I am enclosing a diagram of the green- 

 house I am building and should like to 

 know how many boilers and their sizes 

 and how many flows and returns, to- 

 gether with the size of these, will be 

 necessary to heat this house, using hot 

 water in the system. Will it be neces- 

 sary to have the pipes rise or drop upon 

 leaving the boiler? The temperature 

 goes as low as 20 degrees below zero, 

 but the average is zero and I should 

 like to have a temperature of approxi- 

 matelv 50 or 60 degrees in the house. 



A. D.— S. D. 



The sketch shows a house, 31x100 feet, 

 built on a side hill, with four feet of 

 concrete and two and one-half feet of 

 glass in the south wall. The roof slopes 

 twenty-five feet to the south and eleven 

 feet to the north. There is approximate- 

 ly 2.50 feet of exposed glass in each gable 

 of the house. The sketch plainly shows 

 two raised benches in the lower portion 

 of the house, but while two on the other 

 side are marked benches, they appear in 

 the drawing to be solid beds. This would 

 make no difference in the amount of ra- 

 diation, but if they are solid beds it 

 will be necessary to place two of the 

 returns in one of the walks instead of 

 under the bench. 



It would be advisable to use five 2%- 

 inch flow pipes, placing two of them on 



^^A Merry Christmas 



and a Happy New Year*^ 





|HE spirit of the sea- 

 son prompts us to 

 express to you ap- 

 preciation of our pleasant 

 business relations during 

 the past year and to most 

 heartily wish you health 

 and prosperity for the com- 

 ing year. 



KROESCHELL BROS. 



444 West Erie Street 

 CHICAGO 



CO. 



¥ 



t 



