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6t. 



The Weekly Florists' Review* 



Skptembeu 24, 1908. 



WILKS 



Hot Water Boilers 



Are Best for 



Small Greenhouses, etc.. 



•••• 



•• 



NO NIGHT FIREMAN REQUIRED 



With Our 



Self-feeding Hot Water Boilers 



Keep an even and continuous fire for ten hours and longfer 



without any attention 



VERY ECONOMICAL IN FUEL 



• Send for Our Greenhouse Catalogs 



S. WILKS NFG. CO., 



3S23 Shields A^e. 



CHICAGO 



Uention The Review when you write. 



(ireeahoase Heating. 



RADIATION. 



Kindly lot me know if two 2-inch 

 flows and four 2-inch returns will heat 

 a greenhouse 16x40 feet? Do you rec- 

 ommend four 2-inch or two 3-inch re- 

 turns under each bench? The house is 

 to grow general stock in Ontario. 



M. & V. 



To maintain a temperature of 50 de- 

 grees with a boiler temperature of 180 

 degrees the house 16x40 should have at 

 least nine 2 -inch pipes. One of these 

 can be arranged to act as a flow, or 

 riser, and eight as returns or radiators. 



I regret to say I can give you no gen- 

 eral rule for the use of pipes of various 

 sizes. Each house must be piped accord- 

 ing to the crops to be grown and the 

 heat and size of pipe to be used. 



L. C. C. 



IN MICHIGAN. 



I have two greenhouses, connected, 

 one 18x40, the other 20x40, three and 

 one-half feet to the eaves, sashbars ten 

 and one-half and twelve feet, respective- 

 ly; glass gables to south. At present 

 they are piped with twelve runs of 1-inch 

 pipe in one and eight in the other. 

 This is entirely inadequate for Michigan 

 climate and I wish to repipe them. Can 

 I put all the pipe they both now contain 

 into the narrower one, in which I wish 

 to grow principally carnations, and pipe 

 the other with 2-inch pipe? 



After studying various articles on 

 heating in the Review I have devised^ 

 the following plan, but do not know 

 whether the six 1-inch flow pipes will 

 supply the fourteen returns in the other 

 two coils, or not: In the 18-foot house 

 six 1-inch flows under the west bench, 

 six 1-inch returns under the center bench 

 and eight 1-inch returns under the east 



'Tis true— we told Meyer and 

 Meyer told you. 



F. W. MEYER, 



RiVERSIDK OrEINHOUSKS, 



Box 1. B. F. D. 1. 



KAiiAMAzoo, Mich., 7-7-08. 



MORXHKAD Mfo. Co , Detroit, Mich. 



Dear Sirs:— If the Morehead Return Trap cost ten times what you ask for it, it would 

 be cheap when time, labor and cost of repairs are consid- 

 ered, in comparison with the steam pump I had Installed 

 before getting your Trap. I cannot praise It too highly and 

 I recommend it to everyone who talks steam. Yours, 



F. W. MEYER. 



MOREHEAD RETURN STEAM TRAP 



Manufactured by 



MOREHEAD MF6.C0., orandR^l^r Ave.. Detroit, Micb. 



Write for Florists' Booklet. 



Mention The Review when you write. 



bench ; in the 20-foot house one 2-inch 

 flow and four 2-inch returns under each 

 of the outside benches. By using this 

 plan I can work in the fittings now in 

 use. The pipes will all be under the 

 benches and about level with the top of 

 the boiler, which is an Ideal, Jr., No. 32. 

 Will this boiler carry this amount of 

 pipe? As near as I can learn, it is 

 rated at about 500 feet. A. L. W. 



The 18-foot house, in which you pro- 

 pose to use the 1-inch pipe, should have 

 twenty-two lines of 1-inch pipe in order 

 to provide a temperature of 50 degrees. 

 Instead of using six of the >-inch pipes 

 as flows, use all the 1-inch pipes as re- 

 turns and provide a 2 -inch flow to supply 

 the returns. In this case I would prefer 

 to use an overhead flow in each house, 

 carried from the boiler directly to the 

 far end of the houses. A 2-inch riser 

 will serve for each house. I would fur- 

 ther suggest that if it is possible to 

 exchange the 1-inch pipe for li^-inch 

 or 2-inch pipe, it will give you much 

 better service. With your short risers 



the 1-inch pipe is not as objectionable 

 as it would be in a larger house. 



L. C. C. 



AIR IN SYSTEM. 



I have a range of greenhouses on a 

 hillside. Two of them are heated by 

 a Kroeschell boiler and hot water in 

 4-inch pipes. The upper house is 20x40 

 and is used for roses. The lower house 

 is 36x50, used for carnations. The 

 boiler is under the southeast corner of 

 the lower house, seven feet lower than 

 the upper one. From one of the outlets 

 of the. boiler I run a pipe up through 

 the floor and by means of a tee heat the 

 pipes under the south bench and run a 

 flow across the lower house and up into 

 the rose house. The pipes are all under 

 the benches and consist of a flow and 

 return across the ends of the houses, 

 from which one flow and two returns run 

 under the benches. The pipes slope one 

 and one-'half inches in ten feet. There 

 are air cocks at the farther end. The 

 water level in the expansion tank is four 



