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ThcWeekly Florists' Review, 



Septehbeb 21, 1005. 



HEATING PROBLEMS. 



I have a steam boiler which you last 

 year figured could heat 2,500 square feet 

 of radiation. You stated that a 4-inch 

 riser would be required. I have Bailey's 

 Horticultural Eule Book, to which, if I 

 remember right, you have alluded. I note 

 that its tables (page 156) give the ca- 

 pacity of a 4-inch main as 1,600 square 

 feet. Is this table not correct! 



This year I wish to heat ten runs of 

 1-inch pipe 168 feet long in each of two 

 houses ; also a riser for each house. How 

 L".rge will these two risers have to be? 

 Then I wish to heat 125- lineal feet of 

 1-inch pipe in an end house wi1>h no 

 riser. The riser from the boiler to these 

 houses is about forty feet long. I fig- 

 ure from Prof. Bailey's tables that the 

 total rauiation would be about 1,470 

 square feet. Is this correct? How 

 large a riser at the boiler will be re- 

 quired? 



Concerning valves in returns, do check 

 valves work satisfactorily instead of 

 other valves at the lower end of a coil of 

 returns? If so, which would you use, 

 horizontal or upright? Are they used 

 extensively for this purpose. J. M. K. 



Yes, the table in Bailey's Eule Book 

 is all right. The capacities of the pipes 

 stated on page 156 are, however, more 

 nearly correct for hot water than for 

 steam. A 4-inch riser, if not too long, 

 will carry 3,000 feet of radiation when 

 used for steam. 



I think it would be advisable to use a 

 2% -inch riser in each of the houses 168 

 feet long.' Each house piped in this way 

 would carry about 600 feet oi radiation. 

 The total radiation in the pipes specified 

 would be about 1,^00 square feet. Each 

 lineal foot of 1-inch pipe is equal to .344 

 square feet of radiation. A 3%-inch 

 riser from the boiler will be ample for 

 the entire addition you propose. 



In regard to the use of check valves I 

 will say that I have used them exten- 

 sively but do not think they are in gen- 

 eral use by florists. They are a good 

 thing but cannot be depended upon to 

 take the place of gate or globe valves. 

 On returns they are of the utmost im- 

 portance and should be universally used. 

 The swing check is the only safe and re- 

 liable form to use. L. C. C. 



SiLVEBDALE, Pa. — W. W. Allabough 

 has completed a new house 28x300 and 

 has it planted with tomatoes. 



Janesville, Wis. — The Downs Floral 

 Co. has a sport from the Boston fern, 

 very like the original in form but of 

 wonderfully rapid growth. 



Don't Fail 



To write to the 



Advance Go. 



For estimates on 



Ventilating Apparatus, 



Pipe Carriers, 

 Gutter Bracl(ets, etc. 



Richmond, Ind. 



Mention Tbe Rerlew when jou write. 



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m GREENHOUSE CO. i 



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Horticultural Architects and Builders 



KEARNEY AVE., JERSEY CITY, N. J. 



We manufacture and erect Iron Frame Gh>eenhouses for every 

 purpose, for private and commercial use. 



We also manufacture and supply- every Greenhouse Structural 

 Requisite, such as Cjrpress, Sash Bar Material, Ventilation 

 Machinery, Hotbed Sa«^h and Frames, Fittings, Valves and 

 Boilers for Greenhouse Heating. 



SKETCHES AND ESTIMATES FURNISHED 



For Complete Structures or for Material Ready to Erect. 



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WBZTE US TODAY. 



We nuuto&cture oar patent Short-Roofed Greenhoiuet, a* shown in thii illnstration. and all other 

 styles of construction, either of Wastalacton Red Cedar or LoaUlana Cypresi. QnaUty 



Invariably the Best that Can be Produced. 



Oatalogne, plana and estimatei free on request. 

 A. DIETSCH CO., Patentee. eiB-ai mi*fl*id Ayr:. CHICAGK>. 



Mention The Rerlew when yoa write. 



