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AMERICANRADIATORSAMERICANRADIATORSfurnishing sadsfactoiy heating and ventilating service in thousandsof large and small bLrildings, such as schools, chutchcs,stores, banks, hospitals, hotels, clubs, theatres, auditoliums,Libraries, ctc. *4teLevet people irre lcc,.rstolncd to conglegatein large nunbcrs.These heaters are rrneqrtaled in operlting elicieucy. lntcrnalcurrents ofsteam or hot $ater carry the hcat through thc hollowiron heating spaces shou'n ilr the illustration, rvhile thcexterior surfaces are very carcfulLy designcd to efect the maximurnrubbing contact rvith the air anJ therefote the greatest1-rossible heat transfer per square foot ,lf surface. The rvarmed airis clistributed at comfortable teDpcratttres through the building'Vento Hcaters arc shipped in blocks of sections, easily handled.Scctions consist of only three parts, onc main casting alrdtrvo hexagon nipples. TheY naY becarried through doors, rvindorvs orordinary openings and maY bequickly assembled, A considerablcsaving in labor is thus efi'ecte.lAnd the scctions do not corrodeor rust by thc action of steaD, \\'ateror ait, but serve efficiently throughoutthe life of the bLril,:1ing in which they are installed lndurability, as in ellcieucy, Vento Cast lron Heatets are thcbest investtnent for property orvners.Completc physical an.l technical dat:r is coutaitred in bookletentitled, "Engineers' Data on Vento Hcaters"'ComrJ.riri!c Ctursrsc.rnrn Vi({ orVFNro sc.rn rnr r r''nd' |rfeVENTO HEATERS CAST IRONFOR FAN OII BLO\\'EII \\'ORKFront Viev of Ten'Scction StackSections irrc easily handled and transported and may becarrie.l through doors or rvilrdorvs of any building' and canrhcn be asselrbled in comp:rct, completc heaters' The equivalentpipc coiL stacks ate curttbetsonte arld difficult to handleand rransport.Ali dctails given in special catalogs'ffir: s0 l ls1 I