Ji.xy 26, 1906. 



The Weekly Floiists' Review^ 



625 



Heaiers 



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Small Greenhouses, Etc. 

 Self-Feeding Magazine 

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EXPANSION TANKS 



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S. Wilks Mfg. Co. 



35tii and Siilelds Ave. CHICAGO, ILL. 



Mention 'IIk* Uevlew when yon write. 



fireenhoose fleatiflg. 



HOUSE FOR LETTUCE, ETC 



How many 2-inch pipes will be needed 

 to heat a house 21x40 feet, to grow let- 

 tuce, radishes or violets, using hot water. 

 The house abuts on others to the north 

 and oast, but the west side and south 

 end are exposed. I want to use 2-inch 

 pipe because the house will be used for 

 beaches. W. P. K. 



The house 21x40 feet can be heated 

 sufficiently for lettuce, radishes or vio- 

 lets by nine runs of 2-ineh pipe, a riser 

 and three returns on the most protected 

 wall and a riser and four returns on the 

 exposed wall. That is assuming that the 

 water is maintained at 180 degrees. 



L. C. C. 



PIPING AND EXPANSION TANK. 



Will you tell me how many runs of 

 lV4-inch pipe, what size flow, and what 

 capacity boiler, rated in horse-power, 

 are required to heat two connected even- 

 span houses, running east and west, one 

 to 54 degrees, the other to 58 degrees, 

 with an outside temperature of 10 de- 

 grees below zero, using hot water? The 

 houses are each 14x34 feet, 5-foot walls, 

 nine feet to ridges. The north wall 

 is boarded, the south has four feet of 

 glass, and the east end has glass gables. 

 There is a lean-to on the west 7%xl8 

 feet, 4-foot wall, 7-foot ridge, with two 

 feet of glass in the wall. The boiler 

 shed is at the northwest corner. Where 



should the highest and lowest points in 

 the system be located, and where should 

 the expansion tank be connected! 



L. C. B. 



The houses in question, 14x34 feet, 

 can be heated by one 1%-inch flow 

 through each house, with twelve 1%- 

 inch returns in the house to carry 58 

 degrees, and eleven pipes in the one to 

 carry 54 degrees. The highest point 

 should be at the most distant point in 

 the system from the boiler, i. e., an 

 "up-hill" system. The lowest point 

 should be the main return where it enters 

 the boiler. The expansion tank should 

 connect with the main return near the 

 boiler. L. C. C. 



PIPING IN FOUR HOUSES. 



I have four greenhouses, and should 

 like to know how many runs of 1^4 -inch 

 pipe it will take to heat each house. One 

 is 15x60, and is for geraniums; one is 

 20x60, to grow carnations; another one, 

 20x60, will be in palms; and the fourth, 

 15x25, will be used for carnations. We 

 never have lower than 4 degrees below 

 zero. E. W. 



If this plant is to be heated with hot 

 water at ISO degrees, the houses 20x60 

 feet, intended for geraniums and carna- 

 tions, can be heated by installing a 2-inch 

 flow and sixteen 1^-inch returns in each 

 house. The palm house should be more 

 heavily piped. A 2%-inch riser and 

 eighteen 1^4 -inch returns will serve for 

 this house. The house 15x25 feet should 

 have a I'^-inch flow or riser and fourteen 

 I^-inch returns, to provide a safe 

 amount of radiation. L. C. C. 



HEATING SCATTERED HOUSES. 



I have one house 20x100, three-quarter 

 span, 6-foot north wall, 3-foot south 

 wall, with eighteen inches of glass, and 

 an 11-foot ridge. It has raised benches 

 and is heated by two 2i/^-inch overhead 

 flows, and eight 2-inch returns under 

 the benches. Another house, south of 

 the first but not connected, is 11x100, 

 with 7-foot ridge and solid beds. It i^ 

 heated by one 2^ -inch overhead flow, 

 and three 2-inch returns under the 

 walks. 



I intend to build a house 25x100 two 

 feet south of the second house. The 

 new one will have a 2-foot north wall 

 and a 3-foot south one, an 8-foot ridge, 

 and fourteen inches of glass in the 

 walls. The small, middle house is only 

 temporary, and I shall build a larger 

 one in the 16-foot space later. The 

 houses will be used for lettuce. 



My boiler is at the northwest corner, 

 and is a Kroeschell No. 3. How can I 

 carry water across the ends of the three 

 houses, thirty-five feet, and heat the 

 new house? Is a 4-inch main flow, tak- 

 ing off 2%-inch flows for the houses, 

 large enough? Can I return by 2-inch 

 pipes, connected with a 4-inch main re- 

 turn? The bottom of the boiler will be 

 six feet below the floor. Please describe 

 the size and arrangement of pipes I 

 need. How many returns will a 3-inch 

 flow and a 2^ -inch flow take care of? 

 How large and how high ought the ex- 

 pansion tank to be? B. A. B. 



If, as I suppose, you have a potting 

 shed covering the ends of all three houses, 

 with the boiler at one corner, a 4-inch 

 main flow from the boiler past the center 



