116 



The Florists^ Review 



July 7, 1921 



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- 

 era, 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 

 helpful, also, to have a sketch showing 

 the location of the houses. 



A PLAN TO HEAT. 



Enclosed is a sketch of my green- 

 house, wliieh I want to heat with steam 

 to 60 or 70 degrees. Will you suggest 

 a plan? J. R.— Okla. 



The sketch shows two houses, each 

 17x114 feet, with two feet of glass and 

 tliree of wood in one side wall of each 

 house. For each of these houses it 

 would be well to use a IVa-inch flow 

 pipe on each side wall, and seven IVt- 

 iueh return pipes, placing four returns 

 on the outer and three on the inner 

 wall. A lean-to propagating house is 

 also shown. This is eight feet wide 

 and has one wall exposed, of the same 

 construction as above. For this house 

 it would be advisable to run one 1%- 

 inch flow pipe on the back wall, two 

 feet from the ridge, and four 114-inch 

 returns under tlic propagating beds. If 

 more than 60 degrees is desired, use 

 an additional return under each bench. 



CHOOSING A SYSTEM. 



Wo intend to build a greenhouse, 

 24x40 feet, which will have about 1,500 

 feet of glass, and as we are not familiar 

 with the heating of greenhouses, we 

 should like to know about the locating 

 of pipes and coils. It is possible for us 

 to b)iy a secondhand furnace, Prince- 

 ton No. 10, manufactured by J. H. 

 McClean & Co., Canton, O., and rated 

 at 3,.'500 feet. Would this be too much 

 for our house? We intend to enlarge 

 the house in a year or so. We are en- 

 closing a sketch of a section and the 

 location qf the benches. 



G. F. C— Ida. 



We are not familiar with the Prince- 

 ton hot water heater, but for the plant 

 described it would be advisable to use 

 a heater rated for about 2,400 square 

 feet of radiation. If both ends of the 

 house are exposed, and if further addi- 

 tions are to be made, it would be ad- 

 visable to use a boiler large enough to 



Kroeschell High Pressure 

 Steam Boilers 



Why is it that the largest ranges of greenhouses in the country are 

 heated by Kroeschell Boilers? 



These large places are operated by the oldest and best growers. 

 The judgment of these growers is based on a thorough knowledge 

 of greenhouse requirements gained by years of experience in ihe 

 greenhouse business. Their long experience with all kinds of boilers 

 has taught them that Kroeschell boilers are best in every way. That 

 is why the big men in the growing business select the Kroeschell for 

 their big ranges. 



Battery of Kroeschell High Pressure Return Tubular Steam Boilers 

 with Suspended Setting. 



EnKinearins Advie* and Quota- 

 tions choorfully submittod— 

 Lot us know your roquiromonts 



WHEN YOU BUY - OET A KROESCHELL 

 "THE BOILER OF UNEQUALEO FUEL ECONOMY" 



KROESCHELL BROS. CO./nH'fcSS'o 



Streot 

 , ILL. 



