142 



The Florists^ Review 



Janoabx 29, 1920 



Greenhouse Heating 



COST OF FXTEIi OIL. 



"The price and availability of fuel 

 oil are of vital importance when con- 

 sidering a change from coal to oil burn- 

 ing," states H. C. Dever, of the Fess 

 Botary Oil Burner, Inc., which has in- 

 stalled oil-burning equipment in green- 

 houses in the vicinity of Boston. * * Under 

 the present conditions there are only a 

 few sections where fuel oil can be 

 bought at a price to offer a saving as 

 compared with coal. The cities along 

 the Atlantic coast are using Mexican 

 oil delivered direct by tankers to points 

 on tidewater. This affords a consider- 

 ably cheaper fuel than oil coming from 

 interior points of the country." 



KEROSENE FOB BOIIiEB SCAXJi. 



In using kerosene in boilers to pre- 

 vent scale and rust, how much should 

 be used for each hundred gallons of 

 water in the boiler f Does it diminish 

 the heating power in any wayt What 

 is the result if too much kerosene is 

 used? M. W. B.— Kan. 



For a boiler holding 100 gallons of 

 water, use two gallons of kerosene, and 

 after that use one gallon every month. 

 While considerably more than this 

 might be added without having any 

 effect upon the heating power of the 

 boiler, no more is necessary unless the 

 water contains a large amount of alkali, 

 in which case it would be well to add 

 one gallon of kerosene every two or 

 three weeks for a boiler holding 100 

 gallons of water. 



The principal objection to increas- 

 ing the amount would be the cost of 

 the kerosene. 



USE OF EXPANSION TANK. 



I have a house 15x30 feet, nine feet 

 to the ridge, with three feet of glass 

 in the south side and four feet of 

 concrete in the north, east and west 

 sides. The house is well protected from 

 the north and west winds. I wish to 

 heat it to 60 degrees; the outside tem- 

 perature gets down to 10 degfrees below 

 sometimes. Would six lines of 2-inch 

 pipe with a 2-inch flow two feet from 

 the ridge be sufficient! The boiler shed 

 is to be at the east end. The flow pipe 

 will be connected to a coil of three 

 pipes on the north and south sides. 

 Am I right in thinking that the flow 

 pipe should have a fall of about two 

 inches from the boiler and the returns 

 the same toward the boiler? I shall 

 use hot water. S. E. C. — Mass. 



For a house of this width, it would 

 be preferable to use a 2% -inch flow pipe. 

 This should be carried about eighteen 

 inches below the ridge, with a fall of 

 two inches in the length of the house. 

 If the return coils run along the sides 

 of the house only, four 2inch pipes 

 will be required in each of the two 

 coils, but if the 2%-inch flow pipe is 

 dropped vertically at the farther end 

 of the house and is connected with 

 two coils which start at the center of 

 the house and run each way to the 

 corners and then along the side walls, 

 only three 2-inch return pipes will be 

 required in each of the coils. 



An expansion tank holding about five 



■ 



a 



■ 



D 



■ 



a 



u 

 a 



■ 



■ 

 a 



a 



■ 



D 



D 



D 



■ 



a 



■ 



Q 



■ 

 D 



KROESCHELL 



GREENHOUSE SPECIALTIES 



NOT 



CAST 



IRON 



Made in 20 Sixes 



HEATING and COOLING are two branches of engineering on 



which we specialize for the greenhouse trade. 



Over thirty years have been devoted by us to the construction and 



designing of boilers and refrigerating apparatus. 



During this period we have furnished and installed heating and 



cooling systems for the most successful greenboi se men in this 



country. 



Tubeless Boiler 



ror Hot 

 Water 



or 

 Stcan 



KROESCHELL Boilers are making the most wonderful greenhouse 

 heating record in the woild. Florists who have used other makes 

 are constantly giving the KROESCHELL the highest praise. 



KROESCHELL: 



PIRficWATFRTUBt 



VATCNTCO l»l* 



BOILER- 



The High Pressure Kroeschell— a highly efficient unit for steam 

 plants 100 H. P. and over. 



IS.468.520 sa. ft. of glass was equipped with KROESCHELL Boilers 

 during the past five years. 



Water Tabe Steam Boiler 



O 



■ m 

 o 

 ■ 

 a 

 ■ 

 o 

 ■ 

 a 

 m 

 a 

 ■ 

 a 

 ■ 

 a 

 ■ 

 a 

 ■ 



D 

 ■ 



a 



■ 



D 

 ■ 

 D 



■ 

 D 

 ■ 



a 

 ■ 

 a 

 '■ 

 a 



When in need of refrigeration investigate the Kroeschell System- 

 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— per- 

 fect control of temperature and absolute safety insured— no am- 

 monia used for this system. 



Safety 



COi 



Economy 



Send for Boiler or Ice Machine Catalogues. 

 State which is wanted. 



BUY DIRECT- FACTORY TO USER PRICES 



444 West Erie Street 



KROESCHELL BROS. CO. 

 KROESCHELL BROS. ICE MACH. CO. 



n 



n 



CHICAGO, ILL. 



I D ■ D ■ D I 



D 



a 



■ 

 a 



■ 

 o 

 ■ 



D 

 ■ 

 O 

 ■ 



a 



■ 

 o 



■ 



D 

 ■ 



a 

 ■ 



■ 



