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Makch 21, 1007. 



The Weekly Florists^ Review* 



1427 



V 



WILKS 



Hot Water Heaters 



....BEST rOR.... 



SMALL GREENHOUSES 

 SELF-FEEDING MAGAZINE 

 SIMPLE, STRONG, DURABLE 



HARD OR SOFT COAL 



No Night Fireman Required 



Send for Catalogs and Prices 



S. WILKS MFG. CO. 



CHICAGO, ILL. 



35lh and Shields Ave. 



Mention The Review when yon write. 



gest that it be eighteen inches or two 

 feet lower, ao that in case it should be 

 ♦lesirable to run the plant as a steam 

 J)! ant the boiler would be set properly. 

 You can use your own preference in re- 

 gard to the location of the main flow 

 pipes in the houses. They may be car- 

 ried under the ridge to the far end of 

 the houses and there divided to supply 

 the 2-inch returns, or you can divide the 

 main flow at the entrance of the house 

 and carry an independent branch for 

 each coil on the side walls. If a single 

 flow is provided the house 20x50 feet 

 should have a 2V^-inch flow and thirteen 

 2-inch returns, six on the south and 

 seven on the north wall. A 2-inch main 

 flow from the boiler to the far end of 

 the house 20x30 feet will be sufficient to 

 feed the thirteen 2-inch returns arranged 

 as above described. 



I cannot guess at the size of the 

 radiators you will need, but you can 

 'figure the cubic contents of each room 

 to be heated and allow one square foot 

 of surface in the radiator for each thirty 

 cubic feet of space in the room. If you 

 have only three rooms to heat a 2^/^-inch 

 flow pipe direct from boiler to the house 

 should be sufficient to heat it. Probably 

 a 2-inch pipe would be sufficient, but I 

 cannot give accurate sizes without know- 

 ing the dimensions of the rooms and 

 their exposure. L. C. C. 



STEAM THAPS IN GREENHOUSES 



The old system of gravity return, by 

 placing the steam boilers below the 

 ground, or the employment of a pump 

 to return the water to the boiler against 

 the steam pressure, are in many places 



The Greenhouse Structural Co. 



840 Wast 4th St., CINCINNATI, OHIO 



MANUFACTURERS OF 



IRON-FRAMC GREKNHOU8K8 



Re-enforcing for Concrete "Post and Board" Walls, 

 Ventilating Machinery. Iron Fittings, Iron Purlins 

 and Gutters for Wood Houses, etc. 



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T 



SELF-BALANCING GALVANIZED 

 IRON VENTILATORS <p"e..., 



It It Common Sense 

 Applied to Ventilation. 



A. RASMUSSEN, Niw Albany, Ind. 



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being displaced by the return steam 

 trap. Although a great improvement 

 over the old methods, the steam trap at 

 the introductory period had one main 

 drawback ; it was too complicated. Mr. 

 Morehead, of Detroit, designed and in- 

 troduced to the trade a tilting trap, 

 which was quickly taken up by many 

 large and well-known growers, and is 

 now in quite general use. The trap will 

 take water from the condensing sur- 

 faces of steam heating systems and au- 

 tomatically return it into the boiler as 

 feed water, filling the dual capacity of 

 steam trap and feed water pump. This 

 is accomplished regardless of the po- 

 sition of the returns, whether above or 

 below the water line in the boiler. The 

 salient features of this useful invention 

 are admirably brought out in an attrac- 

 tive booklet compiled especially for flo- 



rists and published by the Morehead 

 Mfg. Co., 1043 Grand River avenue, De- 

 troit. 



POOR CIRCULATION. 



I am having trouble with my heating 

 pipes. My house is 14x75. Both flows 

 and returns are 2-inch pipes from the 

 boiler up to where the coils begin. Then 

 I have five lines of l^i-inch flows and 

 one line of 1 14 -inch returns under each 

 bench, I find that the pipes under the 

 benches fail to heat up, for the circula- 

 tion is poor. W. L. K. 



Your heating system is connected up 

 just wrong end to. If you will arrange 

 the slope in the five lines of 1*4 -inch 

 pipe so they fall towards the boiler, and 

 take off a 2-inch return at the point 

 where the 2-inch flow now enters, and 



,.liti!^,£:l^jjc-\ 



