120 



The Florists^ Review 



Junk 23, 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 desired regarding the capacity of boil- 

 ers, or the amount of radiation required 

 for a greenhouse, the needed temperatures 

 should 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. 



HOT WATER HEATING. 



My greenhouse is 24x50 feet. Its 

 •walls have three feet of glass and three 

 of concrete. It is fourteen feet to the 

 ridge and has glass in one end gable. 

 What is the best way to heat this green- 

 house with hot water t 



Will one 2-inch flow under the ridge 

 and six 1%-inch flows under each side 

 bench and four 1%-inch flows under 

 each of the two center benches heat the. 

 house to about 55 degrees when the tem- 

 perature outside is 16 degrees below 

 zero? This house is new, tight and pro- 

 tected from severe winds. 



C. L. S.— 111. 



So far as the amount of radiation is 

 concerned, there would be plenty if the 

 arrangement as suggested is carried 

 out, but the result obtained when an 

 attempt is made to supply twenty IVn- 

 inch returns with one 2-inch flow pipe 

 would be far from satisfactory. It 

 would be advisable to use three 2%- 

 iiich flow pipes, placing one upon each 

 side wall plate and the other three or 

 four feet below the ridge. With this 

 arrangement only fourteen 1%-inch re- 

 turns will be needed. Four of these 

 should be under each of the side 

 benches and the others under the mid- 

 dle benches, the flows on the walls be- 

 ing used for the side coils and the 

 others being supplied by the flow pipe 

 under the ridge, 



HEATING WITH FLUES. 



I plan to build a greenhouse, 25x100 

 feet, for growing principally bedding 

 and vegetable plants. The side walls 

 are to be four feet, with two feet of 

 glass on one side. I plan to heat only 

 one-half of the house during the winter. 

 Would it be possible to heat this half 

 of the house by means of two brick fur- 

 naces and flues, having the chimney in 

 the middle of the house? The outdoor 

 temperature goes to 20 degrees below 

 aero here. Would hot air be better! If 



"Ain't it a Grand and Glorious Feeling?" 



BOILER 

 SATISFACTIO 



.. Jlw That is what you get when you boy a KROESCHELL. 



There is no heating problem that cannot be solved with 

 one of the many types of Kroeschell Boilers. We make 

 every type of boiler used. 



We study the conditions in the houses to be heated and 

 select the boiler that is exactly suited to the conditions. 

 The customer is sure of an even supply of heat throughout 

 his houses at all times, without wasting fuel. 



No matter where you live, there are greenhouses near 

 you that are heated by Kroeschell Boilers. Visit one 

 of them, look at the boiler, and ask the owner what he 

 thinks about it. He will not hesitate in telling you to 

 buy a KROESCHELL. 



NOT 



CAST 



IRON 



NOT 



CAST 



IRON 



u 



f 



I,! 



I 

 t 



WHEN YOU BUY - GET A KROESCHELL 

 'THE BOILER OF UNEQUALED FUEL ECONOMY' 



KROESCHELL BROS. CO., 



444 W. Eri* Strict 

 CHICAGO, ILL. 



