The Fernstrum® GRIDCOOLER keel cooler can be mounted almost anywhere on a ship's hull, giving the flexibility to match the installation to the hull design and operating conditions of any boat.

Fernstrum® GRIDCOOLER keel coolers are available in either 90/10 copper/nickel or marine grade aluminum rectangular tubing. Copper/nickel units have natural anti-foulant properties. The tubing is very ductile so it can be slightly bent or twisted to conform to the ship's hull. Aluminum units are constructed of alloys that are comparable with vessels having aluminum hulls.

RECESSED – Recessing a GRIDCOOLER keel cooler streamlines the installation and greatly increases protection from damage. Independent tests conducted at the Vienna Model Test Basin have shown drag is negligible when GRIDCOOLER keel coolers are recessed into a ship's hull.

EXTERNAL – If the GRIDCOOLERkeel cooler can't be recessed, faring blocks and side plates may be used for protection and streamlining.

SIDE MOUNT – GRIDCOOLERkeel coolers may be side mounted to avoid damage due to running aground or if there isn't room for a bottom mount to the hull.

SHALLOW DRAFT – Because of their compact size, Fernstrum GRIDCOOLER keel coolers may be mounted along the keel of skeg or even in the rake or tunnel of shallow draft river boats. This takes advantage of the additional water current created by the propeller.