126 





The Florists^ Review 



OcruuBB 28. 1920 



GreenhoBse Heating 



SuBSGRiBEKS 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 haye a sketch showing the 

 location of the houses. 



HEATINQ COMITECTED HOUSES. 



My houses are connected and each is 

 20x85 feet. There will be two feet of 

 wall and four feet of glass in the side 

 walls. The glass will be all around the 

 house, except for the west end of the 

 north house, where the boiler room is 

 placed. There will be one walk in each 

 house. The returns will run under the 

 beds, as the houses are to be planted 

 to lettuce. Will use 4-inch pipe. I have 

 a No. 646 Burnham boiler. Please give 

 me some advice as to placing the pip- 

 ing. The houses will be made tight. 



H. K.— Wis. 



The number of houses is not stated, 

 but about 600 square feet of radiation 

 will be required to heat each house to 

 50 degrees in weather 10 below zero. It 

 will be advisable to provide a boiler 

 with a rating of 800 square feet to each 

 house. While we would prefer to use 

 two 3-inch flow pipes and seven 2%-inch 

 returns in each of the houses, if 4-inch 



Sipe is on hand you could run a 4-inch 

 ow pipe at the wall plate in each 

 house, with two 4-inch returns under 

 each of the two beds. In the outer 

 houses, with the exposed walls, an addi- 

 tional return will be required. It would 

 be preferable to have this on the out- 

 side walls. To secure a good circulation 

 the lowest part of the returns should be 

 above the top of the boiler. All pipes 

 should have a slight fall, but enough to 

 allow the air to escape will be all that is 

 necessary. 



NEW BOII.EB NEEDED. 



I am building a lean-to against the 

 south side of my dwelling, 19x40 feet. 

 It is seven feet high at the eaves and 

 fourteen at the ridge. One end Is all 

 glass, except for a 4-foot wooden wall, 

 and the other end is glass seven feet 

 down from the ridge and tapers to noth- 

 ing at the eaves, a 4-foot wooden wall 

 continuing to the ground. 



I have a hot air furnace with a 26- 

 inch fire pot in the basement of the 

 dwelling, and this is in first-class work- 

 ing condition. I want to heat the glass 

 lean-to with this furnace, if possible, 

 by putting in a hot water coil. The 

 piping must be so as to give the proper 

 radiation for about 65 degrees in zero 

 weather. Can it be done? What size 

 of coil and system of pipe and pressure 

 will it require! There will be a floor 

 bed in the center of the house, with a 

 bench on cither side and a walk under 

 the eaves between the bench and the 

 outer wall. I have city water pressure 

 in my dwelling. H. S. — Wis. 



To heat the lean-to described above 



"Ain't it a Grand and Glotiowu F^mling ?" 



Heat Your Houses with 

 Kroeschell Boilers 



YOLPLL 

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HAPPIER 

 RICHER 



TO TNK MAN WHO NEKOS A BOIUai 



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CAN SHIP 

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ORDERS AT 



OUR EXPENSE 



The KROESCHELL has proven its worth in many of the larce establishments in 

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KROESCHELL BOILERS have no bulky, soot accumu- 

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WHEN YOU BUY-OET A KROESCHELL 



KROESCHELL BROS. CO., 



444 W. Eri« 8tr««t 

 CHICAGO, ILL. 



