A comparison of the two systems, with suggestions for maintaining and improving both. 7 pages.
[PassageMaker, March 2000]
Keel coolers have advantages over raw water or heat exchanger cooling. Two vendors listed. 5 pages.
[PassageMaker, April 1996]
Looking over the shoulder of the author while he replaces the thermostat and freshwater pump, opens and inspects the heat exchanger, and replaces the mixing elbow. No images in on-line version.
[Ocean Navigator, November/December 1999]
This history of problems that certain manufactureres have had making aluminum heat exchanger/exhaust mainifold castings.
[Yachtsurvey, 10 July 2000]
A comparison of raw-water and the more desirable closed cooling systems, with component-by-component instructions for inspecting and maintaining each system. No illustrations on line.
[Cruising World, September 1, 2001]
The purposes, various designs, and potential problems of exhaust risers, also called water induction elbows. Includes lots of advice on choosing a design and some diagnostic suggestions.
[Yachtsurvey, 23 October 1998]Note: Do me a favor. Take a moment to me and tell me how you are using CR right now - what works for you, and what may frustrate you. I′ll use your thoughts to try to improve the site.
Definitions of the terms and parts in a raw water or enclosed cooling system. For beginners.
[BoatSafe.com, USA]
Copper tubing embedded when a lead keel is poured has served this author well for twenty years as an engine cooling device.
[Ocean Navigator, July/August 1998]
Building and installing custom keel coolers for engine and air conditioning. Diagram and table of costs. 8 pages.
[PassageMaker, January 2000]