150 



The Florists^ Review 



Decbmber 8, 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 de- 

 sired regarding the capacity of boilers, 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 TWO HOUSES. 



Kindly give me the requirements 

 necessary for the heating of two houses 

 to 60 degrees when the outside tempera- 

 ture is 10 degrees below zero. Each 

 house is 18%xl00 feet. The height of 

 the houses is eleven feet six inches, v^^ith 

 twenty-four inches of glass in the sides. 

 "What size of Lord & Burnham boiler and 

 how many sections of flows and returns 

 will be needed? W. W.— N. Y. 



For heating a house ISi/jxlOO feet to 

 60 degrees with hot water, it would be 

 advisable to use three 2%-inch flow pipes 

 and ten 2-inch returns. Place one flow 

 pipe on each side wall plate and the 

 other flow about three feet below the 

 ridge. Give each of the flow pipes a 

 slight fall throughout their length in the 

 houses. Each flow pipe may start at 

 the heater or, if preferred, a 4-inch flow 

 pipe may be run from the heater to a 

 point just inside the greenhouse, where 

 it should be connected so as to supply 

 the three 2iX>-ineh flows. 



Three of the returns should be placed 

 on each of the side walls or under the 

 side benches. The remaining returns 

 should be laid under the middle benches, 

 or if solid beds are used, these returns 

 may be along the sides of the walks. 



With the flows arranged as above, the 

 highest point may be connected with the 

 expansion tank and it will not be neces- 

 sary to use air valves. 



While a'heatcr rated for 1,200 square 

 feet of radiation will be largo enough if 

 hard coal is to be used, it will be better 

 to use one rated for 1,600 square feet if 

 soft coal is to be used as fuel. 



If a round heater is to be used, select 

 one with a 28-incli grate and five sec- 

 tions for hard coal, fir with a 31-inch 

 grate and four sections for soft coal. 

 The latter, of course, would also answer 

 if hard coal or coke is to be used. 



HEATING ONE HOUSE. 



Please submit plans for tlie heating 

 of a greenhouse with hot water. This 

 house is 20x100 foot and the height to 

 the ridge pole is twelve feet. One of 

 the sides is boarded up 1o the gutter. A 

 second-hand tubular boiler is preferred, 

 if it can be obtained. W. H. — Mo. 



The sketfh shows the house to be 20x 

 100 foot, with walls six feet in height. 

 A note indicates that one wall is boarded 

 uj) to the gutter, hut it does not show 

 how the otlior side wall is built. There 

 is nothing eitlior in tlio letter or on tlie 

 sketch to show what temjierature is 

 desired. 



If there is no glass in the walls and 

 if a temperature of .'50 degrees is de- 

 sired in zero weather, it would be ad- 



Good Judgment in 

 Buying a Boiler 



C. H. Totty 



For many years C. H. Totty 

 has used Kroeschell Boil- 

 ers. He expresses great 

 satisfaction with the service 

 of his boilers and highly 

 commends the efficiency of 

 Kroeschell Boilers in green- 

 house heating. 



Good judgment based on experience is 

 what makes successful business and, 

 naturally, the more capable a man is of 

 using good judgment and the greater 

 his power of utilizing his experience 

 and the experiences of others in exercis- 

 ing his judgment, the greater will be 

 the success of his business. 



It is impossible to believe that the 

 judgment of a man that is responsible 

 for the establishment of a large, per- 

 manently successful greenhouse busi- 

 ness is anything but good. It is sensi- 

 ble to let the judgment of the big men 

 in the flower business guide you in 

 making decisions for your own flower 

 business. 



Merit alone is responsible for the favor- 

 able opinion of Kroeschell Boilers that 

 prevails among the largest and most 

 successful growers. They select 

 Kroeschell Boilers for their heating 

 problems and recommend them for all 

 growers, large and small. You can 

 make no mistake by installing a boiler 

 in your greenhouses that has gained the 

 favor of men whose success in the 

 greenhouse business qualifies them as 

 experts in knowledge of greenhouse 

 requirements. 



We Can Ship 

 At Once 



any size boiler you need. We have a 

 complete stock of all sizes and styles. 

 Telegraph or Telephone your order to 

 us at our expense; Long Distance 

 'phone Superior 8680; ask for Green- 

 house Department. 



KROESCHELL BROS. CO. 



444 W. Eri« Str««t 



CHICAGO, ILL. 



