Kevin John Stuart

US Patent:

53118430, May 17, 1994

Filed:

May 12, 1993

Appl. No.:

8/060861

Inventors:

Kevin J. Stuart - Dallas TX

Assignee:

Weben-Jarco, Inc. - Dallas TX

International Classification:

F22B 3710

US Classification:

122248

Abstract:

A radially fired water heating apparatus (10) having a plurality of stacked segments of multiple-loop, finned coiled tubing (58) separated by inner and outer support baffles (86, 88), all contained within a cylindrical baffle (20) which cooperates with the coiled tubing (58) and support baffles (86, 88) to direct combustion by-products into an annulus (24) promoting heat transfer to a countercurrent flow of inlet air, the water being supplied to and recovered from the stacked segments of coiled tubing (58) through inlet and outlet headers (54, 56) disposed outside cylindrical baffle (20) that can be selectively modified by installing or removing baffles (90, 92) for either single-pass or multiple-pass operation.