156 



The Florists^ Review 



NOVBMBKR 17, 1921 



In oac-h lioiiso, niii ii 2-inch flow pipe 

 about two fi'ct bolovv llie ridge, giving 

 it a sliglit downward slope. Under each 

 1 of the tilde Vm'IK-Iics, or on tlie side walls 

 in eacli house, iiiii a coil of five 1^/i-inch 

 return pijies. 



While the aT)o\e is an (>stimate of 

 radiation for 2') degrees below zero, it is 

 thouglit that the scheme will answer if 

 it is ])lanned foi' 15 degrees below, and 

 for tliis temperature only eight returns 

 will be needed in each house. 



CHIMNEY DIMENSIONS. 



Having installed a new hot water 

 heating system, we are now facing the 

 I)roposition of building a smokestack 

 for a boiler which is large enough to 

 heat 17,000 square feet of glass, The 

 chimney is to l)e made of brick and 

 will be thirty feet high, with a 21-inch 

 flue. As it now stands, the builders 

 are of the opinion that a 21-inch flue, 

 increased to twenty-seven inches for the 

 remainder of the distance above a 

 12-foot mark, would be correct. Would 

 this aft'ect the draft in any way? What 

 are the correct dimensions for the chim- 

 nev? W. B. I).— Wis. 



While the rating of the boiler in 

 square feet of glass is given, this gives 

 no definite idea of the capacity of the 

 boiler, which would be better expressed 

 in the number of square feet of radia- 

 tion it will supply, because a boiler 

 which would heat 17,000 square feet of 

 glass to 50 degrees would not heat 10,- 

 000 square feet of glass to 70 degrees. 

 If the boiler will handle about 3,000 

 square feet of r;uliation, a sinoke pipe 

 twenty inches in diameter and a chim- 

 ney with an inside diameter of twenty- 

 one inches would not be far from cor- 

 rect, although with a 30-foot stack it 

 would probably be better to give the 

 chimney an inside diameter of twenty- 

 four inches. Nothing will be gained by 

 increasing the top of the chimney to 

 twenty-seven inclies; in fact, it would 

 be advisable to make the stack slight- 

 ly smaller at the up])er than at the 

 lower end. 



If one is to make an accurate esti- 

 mate of the size of a chimney that will 

 be required for a given boiler, it is 

 of considerable assistance if the area 

 of the grate, the width of the open- 

 ings between the giate bars, and the kind 

 of coal to be burned are known. 



Under average conditions the smoke 

 flue sliould be one-eighth to one-tenth 

 the ;uea of the grate. The latio of 

 the chimney to the grate should be one- 

 sixth to one-tenth, the j)roportion vary- 

 ing with the kind of coal used. 



BUILD YOLK GREKNUOUSK NOW. 



With prices down on all (freenhoase materials, we 

 can (losiKn and erect your preenhouBc at a figure 

 that will compel you to build now. Prompt shipment 

 guaranteed. Stock always on hand. Put your 

 precnhouse problems up to us. We go anywhere 

 in the U. S. to submit plans and prices. 



Mz€romlitanMa€ericd€i 



1290-1 :$'»:t FIiiHliinir Av«-.. IJrooklyn, IV. Y. 



Mention The Berlew when 70a write. 



Cut Your Coal Bills 



Leaky boiler settings are the cause of unbelievable fuel waste. All 

 possible heat generated in your furnaces will go to the making of 

 steam when your settings are constructed of 



FURNACE LINING 



Tight PLIBRICO baffles, front and back arches, side walls and bridge walls will 

 save you from 10 to 25 per cent on your coal bills. Worth looking into, isn't it? 



Send for our booklet D-46 on "Modern Furnace Building," and ask our 

 nearest representative to call. 



PLIBRICO u de- 

 liTcred only in itecl 

 containers of dis- 

 tinctire appear- 

 ance as shown at 

 tberifht. Ware- 

 house stocks in 

 all principal 

 cities. 



Mention The Rerlew when yon write. 



ItXets the Florist Sleep 



lii't us t*"!! Tovi what one 

 will cost ilpllverotl at 

 your Kallroad Station. 



WRITE NOW 



You don't have to sit up and watch a 



GIBLIN GREENHOUSE BOILER 



GIBLIN & CO. UTICA, N.Y. 



# 



aic 



% 



BOILER FLUES 



We make a specialty of handling; 

 carefully selected boiler flues, 4 

 Inches in diameterand other sizes 

 lor ItetuhiiiK Boilers. Also 

 Flues for (freeiihouse pIpliiR, etc. 



All flues are thorouRhly cleaned 

 InsUle and out, trimmed and are 

 ready Iflr use. General sales agent 

 for Stuttle'g Patent Clamp and l';i- 

 bow for .iolnlne flues— no pacKlnsr, 

 no leaks NewStiindard Pipe and 

 all Itlndsof Greenhouse Fittings. 

 Klght prices and prompt shipment. 



THK H. MVNSON CO.. 

 Est. 189«. Inc. 1921. 



Phone State 6463, 64fi4 

 938 W . >orth Ave. Chicago 



=% 



at 



^ 



Union Grate 



A Rocking Grate that Saves Coal 



Write for catalogue and prices 



MARTIN GRATE CO., ^^^ci?f5^'S5'^'- 



PIPE- 



Wrought Iron of sound second-hand Quality 

 with new threads and c jupling. 16-ft. lengths 

 and up. Also pipe cut to sketch. We guarantee 

 entire satisfaction or return money. 



ALSO NEW PIPE AND FITTINGS 



Pf atf & Kendall, ^T^ Newark, N. J. 



A GOOD BOOK FREE 



THE FISHER TRAP 



Write for \\—NOW 

 LOOK for our ad in Dec. 8 issue 



FISHER GOVERNOR CO. 



MARSHALLTOWN, IOWA. 



COAL COSTS 

 MONEY 



Are you burning more than you should . 



FREE ENGiNEERWQ 



We maintain a staff of Combustion 

 Engineers who will come into your 

 plant, look it over and if we can cut 

 your coal bill we will tell you how 

 we can do it. There is no obliga- 

 tion to buy COKAL HAND STOKERS. 

 We will guarantee to save coal in 

 your plant if it is possible to do it. 



Call U8 up or write — 



Cokal Stoker Corporation 



1039 North Clark Street 



Tel. Superior 7701 CHICAGO 



PIPE — Second-Hand 



All sizes Fittings and Boiler Tubes 



Pipe out We su.iranteo entire satisfac- 



to sketch lion or uioncy refunded 



Philadelphia Second Hand Pipe Supply Co. 



1003 N. 7th Street, PHILADELPHIA, PA. 



PIPE AND FLUES s^eJo=an°^ 



pipe, with new threads and couplings, in 

 random lengths or cut lengths. Also make a 

 specialty of handling boiler flues for retub- 

 ing boilers or for greenhouse piping. All 

 flues are trimmed and thoroughly cleaned by 

 machine. JQHN GROH 

 1885 Clyboam Ave. CHICAGO. ILL. 



