Time was, cast iron stoves were admired chiefly for the heat they generated. Today, though, collectors prize them for their beauty and charm. For Bill McCann, Eyota, Minn., it was a case of love at first sight. Introduced to the hobby while visiting a collector who had more than 40 stoves, Bill was instantly hooked. 'We were there for five hours,' he recalls. 'I just got so tied up in it. I couldn't believe the workmanship, the craftsmanship and artistry.'