. Florists' review [microform]. Floriculture. S6 The Florists' Review Febrdabt 4, 1915. H. H. LINEAWCAVa & CO., Inc. ANTHRACITE BITUMINOUS \#\^#%^H WMt Ind Trust BuUdinc. PHILADELPHIA 1 Broadway. NEW TORE Vutttnt Baildins. LEBANON. PA. Moition Tb« BcTlew wb«B Ton wilte. Greenhouse Heating. GALVANIZED HEATZNG FIFE. Can you state whether there is, any- where in the United States, a green- house that is heated with galvanized iron steam pipes and is getting good results from such pipes? This question is submitted by the head gardener of one of the large public institutions in Salt Lake City a
. Florists' review [microform]. Floriculture. S6 The Florists' Review Febrdabt 4, 1915. H. H. LINEAWCAVa & CO., Inc. ANTHRACITE BITUMINOUS \#\^#%^H WMt Ind Trust BuUdinc. PHILADELPHIA 1 Broadway. NEW TORE Vutttnt Baildins. LEBANON. PA. Moition Tb« BcTlew wb«B Ton wilte. Greenhouse Heating. GALVANIZED HEATZNG FIFE. Can you state whether there is, any- where in the United States, a green- house that is heated with galvanized iron steam pipes and is getting good results from such pipes? This question is submitted by the head gardener of one of the large public institutions in Salt Lake City and he would appreciate an early reply. B. P. C, I am not able to cite specific cases where good results are obtained from radiation composed of galvanized iron pipe, and would say that it does not afford as effective heating surface as black pipe. The surface is not only smoother, hence furnishing a smaller amount of radiation than black pipe of the same size, but the covering given in galvanizing the pipes of itself does not «onyey or radiate heat as rapidly as black iron pipe. I have no exact fig- ures showing the relative radiation of the two classes of pipes, but a pipe coated with lampblack will radiate more than twice as much as tarnished lead and more than eight times as much as one of polished silver. From this it can be seen that galvanized pipe does not form eflScient radiation. BOILES CAFACITY ABOUT BIGHT. The boiler that I am using is thirty- six inches in diameter and ten feet long, with twenty-eight 3-inch tubes. The boiler is of the horizontal tubular type and the grate bars are 36x42 inches. Using ten pounds of steam, could I heat 8,000 square feet of glass to an average temperature of 62 de- grees in zero weather? "Would there be any surplus boiler capacity? I am returning the water to the boiler by means of a trap. I am located in east- central Ohio. I do not wish to crowd the boiler too much, as I do not think it pays to do so. T. E. F. C. The boiler
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Keywords: ., bookcentury1900, bookdecad, booksubjectfloriculture, bookyear1912
