98 



The Florists^ Review 



Septbmbkr 11, 1919. 



GreenhtBse Heating 



SuBSOBiBEss are invited to write the 

 Editor of this Department with regard to 

 anj 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. 



RUN FLOWS ON PLATES. 



I intend to erect two greenhouses and 

 have plenty of 2-inch and 3-inch pipe 

 on hand, but cannot make up my mind 

 how to arrange the pipes or how many 

 to use. As it is much handier to place 

 the pipes under the benches than against 

 the wall, I prefer that method. The 

 houses are well protected against se- 

 vere winds. Will you inform me how 

 much radiation is required for both 

 houses? I intend to heat my adjoining 

 residence with tlie same hot water 

 boiler. A. S.— Ky. 



The sketch shows two houses, 21x60 

 and 10x60, the former having four 

 benches and the latter two. The walls 

 are of concrete, four and one-half feet 

 high, with eight inches of glass in one 

 wall of the wider house. The larger 

 house should be kept above 45 degrees, 

 while the small house is used for grow- 

 ing vegetable plants towards spring. 

 The outside temperature seldom drops 

 below zero and then only for a day or 

 two. 



While all of the pipes may be placed 

 under the benches, we prefer to run the 

 flows on the plates or under the ridge 

 and it will not be found much more dif- 

 ficult. In the larger house we would 

 use three 2-inch flows, with one on each 

 wall plate and the other below the ridge. 

 Seven 2-inch returns will be needed. 

 We would place two under each bench, 

 except the outer bench, where three 

 may be used. Connect the four middle 

 returns with the overhead flow. 



In the narrow house use two 2-inch 

 flows and two 2-inch returns. The flows 

 may be on the wall plates or under the 

 benches with the returns. 



SIZE OF BOILER NEEDED. 



I would like to know what size of 

 boiler will V)e reciuired to heat a green- 

 house 18x75. The fuel used will be wood. 

 Also what size and how many pipes 

 will be required to heat to 60 degrees 

 when the outside temperature is 20 de- 

 grees below zero? Thirty feet from 

 the greenhouse I have a poultry house, 

 which I would like to heat in cold 

 weather. The ground elevation of the 

 poultry house is twelve feet higher than 

 that of the greenhouse. The greenhouse 

 ridge is ten feet high and the side walls 

 are three feet concrete and two feet 

 glass. Both ends of the house have 

 glass. How far must the boiler be be- 

 low the ground? L. M. — Wis. 



To heat the greenhouse described above 

 to 60 degrees about 675 square feet of ra- 

 diation will be needed. Just how much 

 additional heat vfill be required for 

 heating the poultry house cannot be de- 

 termined without knowing the size of 

 the house and the temperature desired. 



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WHEN YOU BUY-arr A KROESCHELL 

 "THE BOILER OF UNEQUALED FUEL ECONOMY" 



"Ain't it a Grand and CloriouB Feeling?" 



KROESCHELL BOILERS give record 

 breaking services every winter 



CAN SHIP 

 ANY SIZE 

 AT ONCE 



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ORDERS AT 



OUR EXPENSE 



Neither in the East or West, nor the North or South ha* any other 

 make off boiler ever equaled the performance of the Kroeschell— 

 installed for 3,974,605 square feet off Klass in 1916-1917. Every 

 customer immensely satisffied. The hi^h efficiency and low cost of 

 operation make the Kroeschell the best of all boilers for Florists' use. 



KROESCHELL BOILERS have satis- 

 factorily and permanently solved the 

 effective burning of screenings. They 

 will burn the worst grades of coal, even 

 the dirtiest culm or sawdust and wood 

 refuse. 



Greenhouse owners like the KROES- 

 CHELL because of its extreme simplic- 

 ity and freedom from trouble. As a fuel 

 saver, it pays its own way. The KROES- 

 CHELL will increase youf heating plant 

 efficiency 20 to 40%. 



The KROESCHELL has proven its worth in many of the large establish- 

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ORDER YOUR BOILER NOW 



Building has been suspended during the war, but it 

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 believe that building materials, INCLUDING 

 BOILERS, can be bought cheaper now than later, 

 after the building boom gets under way. 



^ KROESCHELL BROS. CO., "^Vc/^'o-.trL 



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