Average maintenance requirements are readily met from a small supply of parts. ... By G. M. Ridenour and E. H. Arm- bruster, Assoc. ... 5T1 Higher Water Works Pay Needed to Attract Competent Men. ... It costs, at 134 per kvh about 37 Vtalt;* per hour for heating Because the plant is located in alt;a#39; public park, a conventional anbsp;...