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The Florists^ Review 



Mat 6, 1020 



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. 



WHAT'S YOUB EXPEBIENOE? 



Growers who have had experience 

 with oil as fuel for greenhouse boilers 

 are asked to write to the editor of this 

 department, telling of their experience, 

 whether satisfactory or otherwise. In- 

 formation is asked also as to the type 

 of boiler, kind of burner and the firm 

 making it, source of oil burned, its cost 

 and comparison of results with coal. 



The fuel situation, as regards both 

 soft and hard coal, is a problem that is 

 disturbing many growers. It isn't so 

 much a matter of the price they must 

 pay as it is whether they can get the 

 needed supply when they want it. The 

 labor disturbances, in the coal fields and 

 on the railroads, have had much to do 

 with this. But labor seems as restless 

 as ever and no cheaper. In this situa- 

 tion the minds of many greenhousemen 

 have turned to the consideration of oil 

 as fuel and they wish to know the ex- 

 periences of those who have tried it. 

 What has been yoursf 



HOT WATER TO STEAM. 



I have two houses, 20%x50 feet, and 

 a residence which I heat with hot water. 

 I want to add another house oh the 

 south side, 20%xl00 feet. Can I con- 

 tinue my main and return across to the 

 new house and get the same results 

 from the same boiler! Should I wish to 

 change this plant to steam heat, could 

 I leave my piping as it isT I have a 

 valve on each coil, so that I can shut 

 off as many as necessary. I have eight 

 2-inch leads and twenty-four 2-inch re- 

 turns. What size of returns should I use 

 for the new house for hot water and, 

 if steam is used, what size of overheads 

 and returns should I use f How many of 

 the leads and returns could I take out 

 of my present houses if I changed to 

 steam f Could I use these 2-inch pipes 

 in the new house f Fifty feet will be 

 protected at the north end and fifty feet 

 will be open at the east end. 



A. E. S.— la. 



There is nothing in the letter, or in 

 the sketch whicfi accompanies it, that 

 indicates the size of the boiler or the 

 main return pipes now in use. As it is 

 understood, the plan calls for practically 

 doubling the present amount of glass 

 and, although it is certain that the main 

 and return pipes which now suffice for 

 heating the two 50-foot houses will 

 also answer for heating the new 100- 

 foot house as well, if the hot water plant 

 is changed to steam, there is no way of 

 determining whether the boiler will be 

 large enough to heat the additional 

 house. 



The temperature desired in the new 

 house is not stated, but if it is the same 



KROESCHELL 



GREENHOUSE SPECIALTIES 



NOT 



CAST 



IRON 



Mada In 20 Sices 



HEATING and COOLING are two branches of engineering on 

 which w« tpccialise for th« grecnhoaM trad*. 



Over thirty years have been devoted by us to the construction 

 and designing of boilers and refrigerating apparatus. 

 During this period we hare furnished and installed heating and 

 cooling systems for the most successful greenhouse men in this 

 country. 



Tubelefts Boiler 



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KROESCHELL Boilers are making the most wonderful green- 

 house heating record in the world. Florists who hare used 

 other makes are constantly giving the KROESCHELL the 

 highest praise. 



KROESCHEU: 



MRbicWATERT'JBt 



BOILER. 



The High Pressure Kroeschell— a highly efficient unit for steam 

 plants 100 H. P. and over. 



13,468,520 sq. ft. of glass was equipped with KROESCHELL 

 Boilers during the past five years. 



Water Tube Steam Boiler 



When in need of refrigeration investigate the Kroeschell Sys- 

 tem—its high efficiency and low cost of operation place the 

 Kroeschell System of Refrigeration ia the foremost rank for 

 greenhouse use. Our system of Refrigeration and Cooling is 

 easily installed— perfect control of temperature and absolute 

 safety insured— no ammonia nsed for this system. 



Send for Boiler or Ice Machine Catalogues. 

 Sute which is wanted. 



BUY DIRECT-FACTORY. TO USER PRICES 



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KROESCHELL BROS. CO. 

 KROESCHELL BROS. ICE MACH. CO. 



444 West Erie Street, 

 CHICAGO, ILL. 



