What is a keel cooler?
On large commercial & fishing boats, the cooling water from engines, generators, etc., is often circulated through pipes that are mounted on the underside of the boat, below the waterline. This gives a very efficient method of cooling without having to pump raw water into the boat & then discharge it. We have borrowed the term “keel cooler” to describe a unique fitting that is installed through the bottom of the boat, below the waterline, with the boat out of the water.
