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120 



The Florists' Review 



Mat 18, 1920. 



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. 



HEATING ENLABGED HOUSE. 



1 intend to add twenty-two feet to 

 my present greenhouse, which is 22x30 

 feet and runs east and west, making a 

 house fifty-two feet long. Across four- 

 teen feet of the east end of the house 

 there is a lean-to, which extends out 

 twelve feet, making the eventual length 

 over-all of house and lean-to sixty-four 

 feet. The lean-to on its north side rests 

 against the boiler shed, which extends 

 along the remainder of the east end of 

 the greenhouse. The walls are four 

 feet, with no glass on the north side 

 and twenty inches of glass on the south 

 side. It is ten feet to the ridge. The 

 glass is 16x18 inches. I have a W. 15-16 

 Ideal boiler, with a 5-inch flow pipe 

 eleven feef long coming off the boil- 

 er. There are three 2-inch flows in the 

 house, all under benches, and twelve 

 l^^-inch returns. Will this boiler heat 

 the house, including the addition, to 60 

 degrees in zero weather? I plan to ex- 

 tend the pipes right on into the addi- 

 tion. C. F. P.— Kan. 



I do not recall the rating of the W. 

 15-16 Ideal boiler, but if it has a grate 

 twenty-five inches in diameter, as I be- 

 lieve it has, it will be quite large 

 ••nough to heat the house described. 



While it will require a little forcing 

 of the fire in extremely cold weather to 

 keep the temperature up to 60 degrees, 

 there would be no difficulty in ordinary 

 winter weather and, at the most, two 

 .idditional returns are all that would be 

 required. 



PIPING FOR SMALL HOUSE. 



1 liave an 18x24 house, running north 

 ;iii(l .south, with the walls on three sides 

 ••(insisting of three and one-half feet of 

 wood and one and one-half feet of 

 glass; on the north side is a shed nine 

 tVet long and eleven feet to the ridge, 

 used to house the heater. The green- 

 Ikhisc is given partial protection on 

 rlio east side by a tight board fence and 

 trees twenty feet away and on the south 

 side by a 1-story building thirty feet 

 away; the west side is unprotected. The 

 heater fire box is 18x20 inches, with an 

 18 inch grate. The flow and the return 

 are 1 '-{.-inch. The boiler is rated for 

 .'^00 square feet. 



I have 1-inch and ll^-incll pipe. 

 Please tell me where to place the pipe, 

 what size to use and how many lines of 

 each, in order to heat this house to a 

 night temperature of 50 degrees. 



T. H. K.— Ind. 



The inquiry does not state whether 

 steam or hot water is to be used as the 

 heating medium. For a house of the 

 siz« described hot water would be pref- 



KROESCHELL 



GREENHOUSE SPECIALTIES 



NOT 



CAST 



IRON 



Mad* In 20 Sizes 



HEATING and COOLING arc two branches of enginecriiig on 

 vhick wa apecUIixe for th« greenhoaM trad*. 



Over thirty years have been devoted by us to the construction 

 and designing of boilers and refrigerating apparatus. 

 During this period we hare fumiahed and installed heating and 

 cooling systems for the most successful greenhouse men in this 

 country. 



Tubcless Boiler 



KROESCHELL Boilers are making the most wonderful green- 

 house heating record in the world. Florists who haTC used 

 other makes are constantly giving the KROESCHELL the 

 highest praiae. 



KROESCHEU: 



MRtitWAieRTUBt 



vATCMTeo lai* 



BOILER- 



The High Pressure Kroeschell— « highly efficient unit for steam 

 plants 100 H. P. and OTer. 



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

 Boileri during the past five years. 



Water Tube Steam Boiler 



When in need of refrigeration investigate the Kroeschell Sy»- 

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

 Kroeschell System of Refrigeration in 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 naed for this system. 



Safety 

 COS 



CcoRomy 



Send for Boiler or Ice Machine Catalogues. 

 State which is wanted. 



BUY DIRECT-FACTORY TO USER PRICES 



KROESCHELL BROS. CO. 

 KROESCHELL BROS. ICE MACH. CO. 



444 West Erie Street, 

 CHICAGO, ILL. 



