112 



The Florists' Review 



July 8, 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. » 



FOE PBOPAGATINO HOUSE. 



I am building a place above my work- 

 room for propagating geraniums and 

 other plants. It will be 21x27 feet, with 

 the side walls four feet high, boarded 

 and papered roof and one gable of glass. 

 The other gable connects with the 

 greenhouse proper. I have a Giblin hot 

 water boiler, with a 24-inch round pot, 

 which will be in the workroom below. 

 I wish to put the pipes under the 

 benches. How much piping will be 

 needed and how should I arrange it! 



C. G. L.— N. Y. 



If there are three benches in the 

 house, run a 2% -inch flow pipe under 

 each bench and connect each flow pipe 

 with a coil of 2-inch return pipes. Three 

 returns could be used under each of the 

 side benches and four returns under the 

 middle bench, making ten return pipes 

 in all. 



With four benches, run the middle 

 flow pipe overhead and at the farther 

 end of the house connect it by means 

 of 2-inch pipes with a coil of two 2- 

 inch returns under each of the middle 

 benches, or a 2-inch flow pipe could be 

 used under each of the middle benches. 



Run the flow pipes downhill and con- 

 nect the highest point in each flow pipe 

 with the expansion tank, which should 

 be located higher than the flow pipes. 



HEATING HOUSE AND HOTBEDS. 



I am sending you a plan of our house 

 and frames. We intend to add to each 

 side of the house a frame to be covered 

 with sashes and to build a frame at 

 right angles to the boiler room also to 

 be covered with sashes, but to be of 

 double width and to slope from the 

 ridge both ways. We also intend to 

 bury pipes in the ground under our cab- 

 bage beds to connect with our green- 

 house heating system, for forcing sweet 

 potato plants. We should probably have 

 two 14x75-foot beds piped. Is this prac- 

 tical? What size of pipes would be re- 

 quired? How close should they be 

 placed 



The greenhouse would have to be 

 heated to 60 degrees when the outside 

 temperature is zero, but the frames are 

 used only in the spring, when the out- 

 side temperature is seldom lower than 

 15 degrees and then 50 degrees would 

 be enough. What size of boiler would 

 be required? Should we use hot water 

 or steam? We will burn soft coal. 

 What size of pipes should be used for 

 flows and returns? W. E. W. — Ark. 



For the present greenhouse use one 

 2%-inch flow pipe under the ridge and 

 four 1%-inch returns under the side 

 benches. If it is intended to heat the 



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 soot-accumulating surfaces — you avoid the ,' 



disagreeable work and trouble indispens- 

 able to cleaning boilers with complicated • 

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 - in every instance KROESCHELL BOILERS give more 

 heat with the same piping with less fuel. 



N-O-T C-A-S-T I-R-O-N 



There is a Kroeschell 

 for every greenhouse 

 plant, be it large or 

 small. 



The Kroeschell will 

 put high temperatures 

 into your heating 

 lines. 



N-O-T C-A-S-T I-R-O-N 



Rose Range of Riverbank Greenhouses, Geneva, III. Charles McCauley, Supt. 



Heated by No.l5 Kroeschell Boiler. Kroeschell 2- inch Return Piping System and Kroeschell 

 Generator. Greenhouses each 28 feet by 200 feet. Garland Construction. 



The mains are arranKed to take care of a future addition of 49,000 »q. ft. of glass: 2-inch retomt 

 ars used throaichout the entire range and each 2-inch return line is controlled by 1-incn gate valve (strictly 

 a Kroeschell feature) , insuring perfect control. It is a gravity job; the circulation is perfect, reaching the 

 extreme ends of range in fifteen minutes. The Kroeschell Generator (the high speed gear for hot water 

 heating) ii also used for this system! 



"Your No. 15 Kroeschell Boiler heats our entire range. We maintain a temperature of 

 60 degrees in our greenhouses, and this temperature is easily maintained, even in the very 

 coldest weather. Your boiler has given entire satisfaction. It is the best and Quickest 

 heater I have ever used or seen. I have found the boiler very economical in the use of fuel 

 and labor, as it is not necessary to use the best coal, and any labor will do for a fireman. 

 The Kroeschell Piping System with Generator works like a charm. When I wanttosulpur, 

 I can heat the water up to 230 to 240 degrees and I get the same results as from steam. See- 

 ing is believing— all growers are invited to call. Any further information concerning boiler 

 and piping system will be gladly given. We had a large number of florists at our place 

 recently, and they all thought we bad the finest equipped plantain the business." 

 ^""■"*^ ITHE RIVERBANK COMPANIES 



CHARLES McCAULEY, Vice-Pres. and Mgr. 



WHEN YOU BUY- GET A KROESCHELL 



KROESCHELL BROS. CO., 



444 W. Erie Street 

 CHICAGO, ILL. 



