Electrical Method for Thawing Frozen Pipes
A paper presented on Feb. 8, 1962, at the Indiana Section Meeting, Indianapolis, Ind., by Thomas W. Bohlander, Hobart Brothers Co., Troy, Ohio.
Abstract
This article discusses an electrical method for thawing frozen water pipes that consists of running an electric current through the frozen section of pipe. Heat so generated starts the melting job and the warmer water from the mains completes it. Surface damage is eliminated and labor costs are negligible. The equipment used, arc welding machines and specially designed transformers that provide controllable current, is available to any utility.