The Florists' exchange : a weekly medium of interchange for florists, nurserymen, seedsmen and the trade in general . returning through it;or if this is not desirable place an ordi-nary air vent at the far end on eachcoil, and locate expansion tank in theshed above boiler, and connect to re-turn at boiler. U. G. SCOLLAY. We have about 9,000 feet of glass andwish to add about additional feetthis Summer. We heat now by coilboiler and 2-inch pipe, hot water under4 0 pounds pressure. In case we changeour mode of heating to steam, can weuse the same 2-inch pipe just as it isbv inserting pit c


The Florists' exchange : a weekly medium of interchange for florists, nurserymen, seedsmen and the trade in general . returning through it;or if this is not desirable place an ordi-nary air vent at the far end on eachcoil, and locate expansion tank in theshed above boiler, and connect to re-turn at boiler. U. G. SCOLLAY. We have about 9,000 feet of glass andwish to add about additional feetthis Summer. We heat now by coilboiler and 2-inch pipe, hot water under4 0 pounds pressure. In case we changeour mode of heating to steam, can weuse the same 2-inch pipe just as it isbv inserting pit cocks at all the lowestpoints to let out the air instead of tak-ing the air at the highest point as wedo for hot water? How large an ordi-nary walled return flue steam boilerwould it take to heat l.^.,000 feet of ordi-nary greenhouse glass to .lO degrees forcarnations? How big a firebox: mediumanthracite pea coal? D. H. M. —Your boiler should be at least 30h. p., of the ordinary horizontal tubulartype. The grate surface would be safeat 15 square feet area for do not give any particulars of pres-. sts :ii)^e whrn wril iii^. BACK AGAIN HEWS POTS ?•nough said eh WELL HOW MANYTHIS TRIP? -MASS.


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Keywords: ., bookcentury1800, bookdecade1880, booksubjectfloriculture, bookyea