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90 



The Weekly Florists' Review. 



E^BBUABY t», 1912'. 



SNI11,LINEAWEAVER&C0. 



COAL 



iBthneite, Bltaattaoas, Coke ud Qm Oeal 



»^.'a.5S£... Philadelphia 



Greenhouse Heating. 



THE HIGHEST POINT. 



Kegarding the inquiry of H. P. S., 

 on page 86 of The Review for January 

 25, we wish to state that for years we 

 used hot water on our place, until the 

 range got too large or the fall on our 

 place gave out; then we installed a 

 steam plant, but at that time we had 

 in mind, as all other greenhouse men 

 seem to have, the idea that the highest 

 point in a water system should be at the 

 farther end of the main, together with 

 the expansion tank. We gave the prob- 

 lem a great deal of thought and always 

 had more or less trouble with it. Later 

 we started a plant in another town. 

 We drew plans and arranged the high- 

 est point of the entire system at the 

 boiler, or as near it as possible, together 

 with the expansion tank three feet 

 above the highest point in the system. 

 We did this more for experimental pur- 

 poses than anything else. 



This place was started with two 

 greenhouses 100 feet long by twenty 

 and twenty-four feet wide, with a main 

 and fall of one inch to every ten feet, 

 under the ridge to the farther end; 

 then we gave the same fall back to the 

 boiler on the returns, this being the 

 same grade that we use in steam heat- 

 ing. While we know this is against the 

 average heating expert's argument, we 

 have never seen better results. We 

 can heat a house at least as quickly as 

 with steam. 



If the above directions are carried 

 out on any hot water plans, the results 

 must prove entirely satisfactory. We> 

 had a florist friend who was all tied 

 up, last fall, with his heating plant. 

 We went at his request and planned the' 

 same scheme for him. He has had no 

 trouble since. J. L. O'Quinn & Co. 



CAPACITY OF MAIN PLOW. 



How many 2-inch returns will a 2- 

 inch flow feed, and how many 2-inch 

 returns will a 2%-inch flow feed? 



M. B. 



The number of returns which can be 

 fed by a main depends upon the length 

 of the coils as well as upon the amount 

 of elevation above the boiler. The 

 higher they are elevated, the greater 

 will be the rapidity of the circulation 

 and the smaller the size of the main 

 that will be needed. As a rule, a 2-inch 

 main will answer for 200 to 250 square 

 feet of radiation if the pipes are 100 to 

 150 feet in length. In using this esti- 

 mate, the surface of the main should 

 be counted in as radiating surface. 

 Thus, supposing that there is a 2-inch 

 overhead main running through a house 

 100 feet long, it could be used to sup- 

 ply two or three 2-inch returns. In a 

 150-foot house it would still be able to 

 supply two 2-inch returns if they are 

 four or five feet above the heater. A 

 2%-inch flow pipe will carry 400 to 450 

 square feet of radiation, or nearly twice 



NO SECTIONS 

 EASY TO SET UP 

 Made of Boiler Plate 

 Absolutely Safe 

 CANNOT CRACK 



Has Thin Water Ways 

 Vertical Circulation 

 T he Lontrest Fire Travel 

 Heats Quick, Easy to Clean 

 More Direct Surface than 

 any Other Boiler 



CAST IRON BOILERS WASTE FUEL 



THI OOVINQTON SHD COMPANY, 



SUDMHN AND FLOMSTS. 



»fnct in utiuMm. 



f«-M w. r» ti 

 ttM lurtH in 



"initm^kM, Ki> . JftT'tar le, I'tV^. 



Kro««oh«ll Bro*. Co., 



Chloa<o, Ill« 



QantlaBen: - 



Your new Krocaohall Boiler la 

 haatlog 15,000 aq. ft. of glaaa , and It would 

 take oeire of SOOO ft. nore. Wa oan a&lntaln 

 any taaparsture froo 59 degreea to TO dagraaa 

 and have had no trouble to keep proper ten- 

 peraturaa aren In tha ooljeet weather. 



YouT boiler haa glvao entire aatia- 

 faotlon, and wa uae gaa for fuel. *e are more 

 than pleaaad rapeolally with your plpHig plan, 

 which. In our opinion, la perfect. Te have 

 •lAoat 49,000 aq. ft. of glaaa and uae threw 

 (3) bollere. 



We oan h eat the 19,000 ft. con- 

 nected to the DtOKSCHIU. boiler with 25> leea 

 gaa than uaed with either of the CAST TROt 

 boilara, and with a great deal nore aatlafac- 

 tlon. Wa shall be glad to have any proapac- 



MentioD The Review when you write. 



50^o SAVED 



Pipes* Flues 



and caslns thoroaghly overhanled and ffuaran- 

 teed. OreenhooBe fltUngs of everr description. 



ILLINOIS PIPE & MFG. CO. 

 1115 B. JeMerson Btr— t. CHICAGO 



41ways mention the noriata* Berlew 

 when writing adTertUers. 



^ 



Ford & Kendig Co. 



"Spelleiiied" Wnaght Pipe 



Espedallr adapted for Greenboose Work. Fiti 

 tings. Valyes. Tools, etc. 



24tk ud WMd StL 



PHlLADELnnA. PA. 



41way* mention the Florists' Review 

 when wrltina; advertisers. 



