i|lipjl^l»WiH'Tf'V^^W»f'^i«i'.i,!ril''"fll'"'SH'W19i«fjp- 



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100 



The Florists' Review 



r ■' •>. ■■ n 



Apbil 17, 1913. 



IMPROVED RETURN TUBULAR 

 FIREBOX BOILER 



Johnston Heating Co. 



131 E. 26th St., New York City 



Mention The Kevlew when you write. 



Greenhouse Heating. 



SuBSCRiBEBS are invited to write the 

 Editor of this Department with regard to 

 any details of greenhouse heating that 

 are not understood. But please do not 

 ask The Beview to make a choice of ap- 

 paratus for you. The greenhouse heating 

 equipment advertised in this paper is, we 

 believe, the best for the trade to buy, 

 and each article the best in the special 

 field of its adaptation. 



SIZES OF ANTHRACITE COAI.. 



The standards for anthracite coal 

 sizes as recommended by the American 

 Society of Mechanical Engineers and 

 printed in the society's journal, Novem- 

 ber, 1912, are as follows: 



Screen or Opening (Circular) 

 Through or Over Which 

 Coal Will Pass, Inches 

 Name Through Over 



Pea 7/8 9/16 



No. 1 buckwheat 9/16 5/16 



No. 2 buckwheat 5/16 3/16 



No. 3 buckwheat 3/16 3/32 



No. 4 buckwheat or culm . . 3/32 .... 



SIZE OF STEAM PIPES. 



Kindly let your heating expert pass 

 on the following question: We have a 

 new greenhouse, 25x100 feet, to be 

 heated by steam. Our engineer claims 

 that by putting in larger pipes, better 

 results would be secured than with 

 small ones. He also claims that this is 

 the latest thing in heating. I do not 

 agree with him. The piping in the new 

 greenhouse is as follows: One 4-inch 

 supply and one 2-inch return on each 

 side. Now, the question is: Would it 

 be possible to keep the temperature up 

 to the requirements of palms and roses 

 in winter, with zero weather, on ten 

 pounds of steam t Our engineer claims 

 it would. As we have a new boiler and 

 intend to put new heating pipes in the 

 rest of the houses, I want to be sure be- 

 fore we start. The boiler capacity is 

 quite large, but we are not permitted to 

 carry more than ten pounds of steam. 

 We' are located in Pennsylvania. 



C. B. 



There is no reason for having the 

 supply pipe as large as 4-inch, as a 2V^- 

 inch supply would be ample and a 2- 

 inch pipe would answer to carry the 



*» 



-rX» 



RETURN 

 TRAPS 



Save condensation 

 and it's heat. 



Automatically return 

 both to boiler with 

 out pumping. 



Let us show you what "Detroit" Traps wouldJSave in your 

 coal bills — what they will do for your Heating System. 



Catalogue No. 362-FW upon request. 



American Blower Gompany 



' - DETROIT. MICH. 



U. 



S. A. 



Canadian Sirocco Company. Limited, Windsor. Ontario, Manufacturers for Canada. 



Mention The Rerlew when you write. 



Suonds Heating & Specialty Co. 



Grand Rapids, Mich. 

 QRBBNHOUSB 



ONB POUND PRESSURE 



VACUUM HBATINa SYSTEMS 



Mention The Rerlew when yon write. 



HIGHGRADE BOILERS 



g:L?.V.e For GREENHOUSES 



STEAM and HOT WATER 



GIBLIN & CO., 



109 Broad Str««t 

 UTICA. N. Y. 



Mention The BeTlew when yoo wrlte^ 



WROUGHT IRON PIPE FOR SALE 



Rethreaded, thoroughly overhauled, 14 ft. and up, 



(guaranteed frc^ from spilt or holes. 



It will pay you to correspond with us. 



ALBERT & DAVIDSON 



217-23 UffioR «ve«M. BmOKLYN. NEW YORK 



Mention The Review when yon write. 



Full Weight ''Reading*' 



Wrought Iron Pipe 



Sizes >^-in. to 12-in. from stock 



FORD & KENDIQ CO. 



24th and Wood Sts., Philadelphia, Pa. 



Mention The Review when you write 



steam needed for a greenhouse 2.")xl00, 

 to be heated to 60 degrees, if ten pen mis 

 of steam can bte maintained. While 2- 

 inch pipe might be used for the returns, 

 it will be more satisfactory if l^^-inch 

 pipe is used. However, the proposed 

 amount of radiation would be found 

 woefully deficient. In addition to the 

 4-inch supply and two 2-inch returns, 

 three or four 2-inch returns would be 



A Steady 

 Pressure 



will always 

 be main- 

 tained in 

 Jonr steam pipes, no matter 

 ow the pressure at the boiler 

 floctoates, if yon equip your 

 main lines with these valvea. 

 Carry 40 or 50 pounds pressure 

 on the boiler, set the 



Hughson 

 Regulating Valve 



to carry 5 or 10 pounds on the 

 line and you will always have a 

 reserve in case of a sudden drop 

 in temperature. This valve 

 saves both fuel and worry. Aak 

 for catalogue and particulars. 



Highnn Steiin Specialty C«. 



5021-3 S. State St.. Chicagt 



iientlon The ttevlew when yoo wrtf . _ 



Rocker Grates 



FOR GRKXNHOnSXS. 



G. E. TRAVIS COMPANY 



HENRY. ILL. ^ 



needed if a temperature of G'l degifes 

 is to be iu<iiutained. 



In place of this 1 would suggest the 

 use either of a 2%-inch overhead flo" 

 pipe, or two 2-inch flows, cue upon eacD 

 of the plates, and eight or ten 114-i"''^ 



