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The Florists' Review 



AUOCST 7. 1#1#. 



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. 



SHALL HOUSES BE ELL-SHAPED? 



I intend to build more greenhouses, 

 on lot No. 2, as indicated in the en- 

 closed sketch. In which direction would 

 you advise running the first new house, 

 in order to secure the best light for the 

 growing of a general stock of plants! 

 Would good light be obtained by build- 

 ing so as to form an ell at the back of 

 the present houses, or would you ad- 

 vise running the new house in the same 

 direction as the present houses, in lot 

 No. It J. M. G.— Ont. 



The sketch shows that the present 

 houses run from northwest to southeast, 

 and the lot upon which the new house is 

 to be built permits running it either in 

 th ) same direction, as a continuation of 

 the older houses, or at right angles, thus 

 forming an ell. 



While it will not make a great deal 

 of difference in actual practice, we 

 would prefer, in case an even-span house 

 is to be erected, to run it from northeast 

 to southwest, or at right angles to the 

 present houses. This would make it pos- 

 sible to equalize the sunlight on both 

 sides of the house. For a three-quarter- 

 span house the other direction would be 

 preferable. 



HEATING A VIBGINIA HOUSE. 



I am building a greenhouse 18x40 feet 

 with a 36-inch wood wall and a 36-inch 

 glass wall. The roof is ten feet high in 

 the center, with a three-quarter span and 

 a southern exposure. Will you please 

 tell me the best method of piping ttiis 

 house and what size pipe to use? I 

 want to heat this house to 65 or 70 de- 

 grees when the weather is zero and 

 would like to know the best make of 

 boiler to use and how far the boiler must 

 be below the greenhouse floor. Which 

 is better, steam or hot water heat? 



B. C. F.— Va. 



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For a house of the size described, to 

 be heated to 70 degrees in zero weather, 

 I should select a boiler rated for 750 

 square feet of hot water radiation. Hot 

 water will be found to be more satisfac- 

 tory than steam for heating a small 

 greenhouse. The boilers advertised in 

 The Review will be found satisfactory. 

 I suggest writing for catalogues and 

 prices on boilers of the rating needed. 



The boiler should, if possible, be 

 placed so that it will be entirely below 

 the level of the returns, but it will suf- 

 fice, with overhead flows, if the upper 

 half of the flrepot is as low as the re- 

 turns. 



I suggest the use of three 2i^-inch 

 flows, placing one on each plate and the 

 ether under the ridge. While fourteen 

 2-iiiah returns would be required to fully 



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DETROIT 



AUGUST 18-20-21-22 



ALL ABOARD— LET'S GO 



The Society of American Florists 



and Ornamental Horticulturists 

 GREATEST CONVENTION 



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EET the men you read about, get acquainted with the Trade's 

 Leaders, see the improvements in Greenhouse Building and 

 Heating, view the New Ribbons, Baskets and Accessories; 

 see the Great Trade Display. 



ETROIT 

 BIDS YOU WELCOME! COME! COME! COME! 



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KROESCHELL BROS. CO. 



Manufacturers and Engineer* 

 440-472 W.Erie St., Chicago 



Our Speciakiet 



Heating Plants,Steam Power Plant*, 

 Refrigerating Systems 



W»l<w Tube Stf»m BoUert— 300 to 600 Hone 

 Power 



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|EE the KROESCHELL EXHIBIT. See the Big New Model 

 KROESCHELL Boiler. Capacity 50,000 Square Feet Glass, 

 weight 15,000 lbs. 



EE the Working Model of the KROESCHELL High Pressure 

 Steam Boilers. 100 to 300 Horsepower. 



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fflEET the KROESCHELL engineers. Heating and coolinr 

 2^Q experts. It will pay you to attend the show. B« there. 



EE the KROESCHELL Threaded Tube Piping System. 



|EARN about the KROESCHELL System of Refrigeration. 

 No Ammonia used. 



