Duramax BoxCooler provides you with superior protection, design flexibility, and large cooling capacity
It operates in a sea chest within your vessel’s hull protected
against underwater hazards. It can meet the specific cooling
needs of your engine as well as the cooling needs of multiple
heat sources, while using less space in your vessel. A Proprietary
heat-cured synthetic coating protects the cooler tubes unit
from galvanic corrosion. This coating is resistant to saltwater,
polluted water and chemicals.
BoxCooler works on the principle of Thermal Siphoning.
This is the movement of heated water due
to convective currents. The fact that hot water will rise
and cold (denser) water will fall, results in a natural movement
of water or circulation through the sea chest. Engine’s
cooling water is pumped through a highly efficient aluminum
brass (CuZn20Al) tube bundle. Openings at the top and bottom of the sea chest create a convection current
which flows over the tube bundle and transfers heat into
Impressed Current Anti-Fouling System (ICAF)
prevents fouling caused by marine growth.
Artificially triggered voltage differential between the copper anodes and the cathodes causes copper anodes to dissolve. Copper ions are formed, preventing the build up of marine growth.
cooling capacity than external systems
and reparing without dry-docking.
No overhauling raw
water pumps and piping every 5
Can be engineered to cool
multiple heat sources on one cooler
Single heat source =
2 heat sources =
2 circuits on one BoxCooler
Typical heat sources
Secondary raw water system
raw sea water is not being pumped into the vessel
Eliminates the need for sea water strainers or filters
Ideal for most vessel types
Duramax® is a registered trademark of Duramax Marine® LLC.