Why Keel Cooling?
A keel cooler is a closed circuit cooling unit mounted on a vessel's hull beneath the waterline. This closed circuit cooling system eliminates the need for an inboard heat exchanger, raw water pumps and strainers, as well as the maintenance associated with them.

Why Fernstrum?
Engineered design features found only in the Fernstrum GRIDCOOLER keel cooler provide a level of quality, durability and efficiency not found in inferior look-alike products. By offering an engineered product, our customers can rest assured that they're getting the most economical cooling solution available, without scrimping on quality or cutting corners on safety factors.

The Fernstrum GRIDCOOLER keel cooler is available in standard as well as many custom configurations to accommodate installation and maintenance concerns. Custom designs are a Fernstrum specialty and are limited only by the imagination. We are happy to discuss your application and assist in the designing or determining a custom configuration that adds value to your cooling system.

 
Engine jacket water is piped directly to the Fernstrum GRIDCOOLER keel cooler, which cools the water and then sends it back to the engine. The GRIDCOOLER keel cooler is in constant contact with the sea water for transfer of heat.
© 2006 R.W. Fernstrum & Company • P.O. Box 97 • Menominee, MI 49858• Phone 906-863-5553 • sales@fernstrum.com