70 



The Weekly Florists^ Review* 



April 8, 1909. 



•■s 



SMITH, UREAWEAVER & CO. 



COAL 



AattTMlto, BltudBoas, Coke tmA Om Coal 



Philadelphia 



WeitEnd 

 Tnaat BvUdlnc* 



STUTTLE'S CLAMPS SSCnn! 

 means of joining old boiler flues for 

 taeatingr coils. Quickly put together, 

 tight joint, and quickly taken oS. Free sam- 

 ple if you pay express. 



Henry Stuttle, iivtstir wU Pattstti. Batavia, ill. 



H. MuNSON, 68 N. State St., Chicaoo Aqxmt. 



fireeohoose Heatiog. 



DATA ON HEATING. 



The Illinois Malleable Iron Co., Chi- 

 cago, has just issued a new general cata- 

 logue of boilers, pipes and heating spe- 

 cialties, containing 466 pages, several of 

 which are devoted to tables covering the 

 essential data regarding greenhouse heat- 

 ing. It is shown that with steam heat- 

 ing one square foot of radiation will 

 heat to a temperature of: 



Degrees. Sq. Ft. Glass. 



40 to 50 5 to 6 



80 to 60 414 to BVj 



60 to TO 4 to 5 



With hot water as the heating medium 

 one square foot of radiation will heat to 

 a temperature of : 



Degrees. Sq. Ft. Glass. 



40 to .W 3% to 4% 



50 to 60 3 to 4 



60 to 70 2^ to 314 



It is shown that a wrought iron pipe 



100 feet long will expand as follows, the 



figures at the left being the temperature 



of the pipe when filled, and the headings 



of the columns in the center the degrees 



of heat in the pipes in operation: 



Temperature In Operation Exp's'n 



At start 180° 215' 



Zero 1.44 1.72 Inches 



32 1.18 1.47 inches 



64 93 1.21 Inches 



Under favorable conditions one square 

 inch of grate surface is sufficient for one 

 square foot of direct radiation in me- 

 dium sized boilers. 



There are a great many other facts in 

 the book which anyone must know to be 

 a thorough heating man. 



RADIATING SURFACE OF PIPE. 



It is evident, from the nature of many 

 inquiries received by the Review, that a 

 considerable number of florists have no 

 accurate way of estimating the extent of 

 radiating surface in a specified length or 

 quantity of piping. In other words, they 

 have no way of estimating what amount 

 of piping is necessary to supply the re- 

 quired radiation. When they are in- 

 formed that a certain size of greenhouse 

 requires a certain number of square feet 

 of radiation, they are still in doubt as to 

 how much piping they must install. 



The following table shows the amount 

 of radiating surface, expressed in frac- 

 tions of a square foot, in each lineal foot 

 of pipe of the sizes commonly used: 



Sire Pipe. Sq. Ft. Size Pipe. Sq. Ft. 



1-lnch 344 21/i-inch 753 



114-Inch 435 3 inch 916 



1%-lnch 497 3^^-lnch 1.047 



2-fnch 622 4-lnch 1.178 



By means of this table, it is easy, of 



course, to compute the radiating surface 



in any stated quantity of piping. In 125 



lineal feet of 2-inch pipe, for instance. 



- THE SUPERIOR 



Improved Internal Fired Boiler 



Made in ten (10) sizes. 



No brick foundations required. ~ 



Can be cleaned while in use. 



Shipped on skids ready for installation. 



Specially designed for Greenhouse use. 



Investigate before buying. 



Catalogue and prices on application. 



Superior Machine & Boiier Worlcs, 



186.133 W. Superior Street, CHICAGO, ILL. 



1 Mention The Review 'vhen you write. 



20 Years in Service 



\- 



^^^^ MOREHEAD 



RETURN STEAM TRAPS 



Have been in use by florists for over 20 

 years. Could a better proof of efficiency and satisfactory 

 service be furnished? 



The floral establishment of Mr. Geo. Relnber?, Ohlcago, 111., is equipped 



with twvnty-toor Morehead Traps. Repeat prders. See the point ? 



Write for particulars and a 30 day free trial. 



MOREHEAD MFG. CO., 1043 Grand Rim An., Detroit, Micll. 



Mention The Kevlew when vou write 



IMICO 



Hot Water Boilers 



Made by 



ILLINOIS MALLEABLE IRON CO. 



539 OI«eis«y Boilnaril, CHICAGO, 



Are noted for coal economy and 

 C^ood results g^enerally. 



SSND FOR CATAIXK3. 



Mention The Review when you write. 



The Standard 

 Steam Trap 



is acknowledged the best for tbe 

 florist, because it is durable and 

 does its work without trouble and 

 annoyance, saviuK its cost by tbe 

 economy in coal bills. 



E. ttlPPARD, Youngstown, Ohio 



lleatloD The Review wben you wrfto. 



