124 



The Florists' Review 



OcToiiKi; 27. lyiil 



Greenhouse Heating 



Si:n.s<niHKiis ;iio invited to write the 

 oilitor of this (lei»aitiiitMit with rogard to 

 any dotails of greenhouse lieating that 

 are not understood. Wlien information 

 is desired regarding the eapacity of boil- 

 ers, or the amount of radiation required 

 for a greenhouse, the iieed(nt temperatures 

 sliould he stated in the inquiry, as well 

 as tlie amount of glass in the side Avails, 

 and the dimensions and general arrange- 

 ment of the greenhouses. It is often 

 lielpful, also, to have a sketch showing 

 the location of the houses. 



HEATING A SMALL HOUSE. 



1 have a greenlioiise K)x:?0 feet, with 

 .•ip])r()ximately .')(l(l s(juare feet of glass. 

 How large a boiler and how much pipe 

 would he necessary in a heating sys- 

 tem of tlic hot water type, to keeji 

 the temjteraturc in the greenhouse at 

 r.O or rtd degrees.' .1. W.— 111. 



Although it will require not to exceed 

 18(1 sipiare feet of radiation to heat the 

 lu)use to ()0 degrees, it will be advisable 

 to select a boiler rated at 300 to :{50 

 square feet of radiation, especially if 

 soft co:il is to be used. Most boilers 

 with this rating have a grate about 

 eighteen inches in diameter. 



While other arrangements of the 

 pi])es might be used with good results, 

 a good way would be to run a liVj-inch 

 tlow pi])e over each of the side wall 

 ]ilates and with it supply either nine 

 or ten IVL'-i"'''' returns. Run all of the 

 pipes downhill and connect each of the 

 tiows with a coil of four or five return 

 pijK's to be iilaced under the benches. 

 The main How and return should be 

 .■'liiicli and the exjiansion tank should 

 be connected with the highest jioint of 

 the main flow. 



ENLABGING OLD SYSTEM. 



I wish to make an addition to a heat- 

 ing system already installed, the en- 

 largement to extend to a new green- 

 house 120x86 feet, built at right angles 

 to and connected with .-in old house. The 

 oast end of the new house is placed ad- 

 .jaccnt to the wall of the residence. The 

 west end, however, is exposed and has 

 .■I concrete wall four feet high, with 

 three feet of glass above it. The sys- 

 tem to be extended is a Moninger hot 

 water systi'm with 4 inch flow and re- 

 turn pipes. I have a]>proximately 1,200 

 feet of 2-inch jiipe on hand, which I 

 should like to use. Would it be advis- 

 able to use three L'-inch flows and twelve 

 '2inch returns.' The boiler now in use 

 has a :{Ox;>l'-iiicli grate, and the expan- 

 sion tank has a ca]iacity of thirty gal- 

 lo)is. Will these be ample for the needs 

 of the new .•irrangement when com- 

 pleted.' T. R.— O. 



There should be no difficulty in heat- 

 ing the new house to .")0 degrees in zero 

 weather with three 2-inch flows and 

 eight 2-ineli returns, except that the 

 radiation in the house is slightly more 

 than can lie handled by three 2-inch 

 flow ]>ipes with best results. Hence it 

 would l)e better to use four flows and 

 eight returns. 



Place one flow on each side wall plate; 

 I)ut a third about three feet below the 

 ridge, and the fourth can be carried on 

 the row of purlin posts under the middle 

 of the south slope of the roof. This will 



Increase Your 



Profits This Winter 



by installing a Kroeschell Boiler 

 now and save many dollars' 

 worth of coal. 



You Can Get a 



Kroeschell Boiler 



Without Delay 



We can ship any size boiler at 

 once. Telegraph or telephone 

 your order at our expense. Long 

 distance phone, Superior 8680. 

 Ask for greenhouse department. 

 Your boiler will go out of Chi- 

 cago on the first train. 



^*^ 



KROESCHELL BROS. CO. 



444 W. Eri* Str««t 



CHICAOO, ILL. 



