112 



The Florists^ Review 



JcNK 3, 1920 



Greenhouse Heating 



SuBSCBiBBBS 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 WITH CRUDE OIL. 



Is it possible to install an oil burner 

 in our hot water boiler to burn crude 

 oil? Can it be done so that it will be 

 feheaper than coal and do away with 

 the necessity of having a night fire- 

 man? W. J. M.— 111. 



There should be no difficulty in ar- 

 ranging a crude oil burner for use in 

 a hot water heater. For the economical 

 use of the oil it will be necessary to 

 provide either a steam or compressed 

 air jet for spraying the oil into the 

 fire box. A storage tank and a tank 

 wagon for hauling the oil should also 

 be provided. 



The cost of coal and crude oil fluctu- 

 ate to such an extent that it is not 

 possible to state which will be cheaper 

 in the future. As a rule, the actual 

 cost of the oil is more than that of 

 coal, but the saving in the cost of fir- 

 ing and removal of ashes and the benefit 

 from lessening the amount of smoke and 

 fioot have generally balanced the ac- 

 count. The use of crude oil greatly 

 lessens the work of heating a green- 

 house. 



HEATING MUSHBOOM HOUSES. 



I have three greenhouses, each 12x72 

 feet and eight feet to the ridge. The 

 west wall is of concrete and is six inches 

 thick and four feet high. The north is 

 protected by the boiler house. The 

 houses run north and south. I have two 

 mushroom sheds the same length as the 

 greenhouses; one is ten feet wide and 

 the other is twenty feet wide and both 

 are seven feet high. They are protected 

 by the other houses and have tar-paper 

 roofs on them. 



I have a Eoyal hot water boiler with 

 six sections; the fire box is about 3x4 

 feet. I have fourteen feet of 3%-inch 

 feed pipe running from the boiler to the 

 first house, where it is reduced to 3-inch 

 to go on to the other two houses. The 

 boiler is in the center of the boiler 

 house. The two mushroom houses are 

 to the east. The 3-inch pipe, later re- 

 duced to 21^-inch, runs through the 

 houses overhead. On the one 2^-inch 

 feed I have three l^^-inch returns on 

 one side and the same on the other side. 

 This is in the No. 1 mushroom house, 

 which is twenty feet wide. Then I have 

 a 21/^-inch feed in the No. 2 mushroom 

 house, which is ten feet wide, with four 

 1^^-inch returns. 



No. 1 greenhouse is west, with one 

 3-inch feed and with three 2-inch re- 

 turns on each side. Then No. 2 green- 

 house has one 3-ineh feed, with five 

 1%-inch returns on one side and four 

 1%-inch returns on the other. No. 3 



WHEN YOU BUY-GET A KROESCHELL 

 ■THE BOILER OF UNEQUALED FUEL ECONOMY' 



Ov A.« ir 2^25f 



The immense amount of direct self -cleaning heatinsr surface and 

 the thin vertical waterways cause this type of boiler construction 

 to heat water quicker than any other form of boiler. 



Hundreds of Florists' Review readers are using the 

 Kroeschell Boiler and mighty is their praise. The 

 year of 1920 has brought us an enormous number of 

 new customers who have seen our boiler in operation 

 at other places. We attribute the large sales of this 

 season to the good work the Kroeschell Boiler is doing 

 everywhere. With our policy — "the customers' interest 

 first" — perfection of construction — factory to user prices 

 — honest and "true blue" boiler ratings — you simply 

 cannot lose. 



PLACE YOUR ORDER-DO IT TODAY 

 TELEPHONE OR TELEGRAPH AT OUR EXPENSE 



KROESCHELL BROS. CO., 



444 W. Erie Street 

 CHICAGO, ILL. 



