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P.A.E.'s recommended exhaust system found on today's Nordhavn is the result of years of development and painstaking efforts to design a clean, quiet and foolproof system. In lieu of a conventional wet exhaust, Nordhavns are designed with a dry exhaust system and recessed keel coolers. This is a closed system where the engine's coolant supply is circulated through a captive series of tubes recessed in the vessel's hull. No salt water enters the ship, and the engine mounted raw water pump, heat exchanger, anti-siphon valves and seawater exhaust are eliminated. With no strainers to clog, no impellers to break, and no belts to fail, reliability is greatly increased. Designed with special noise attenuators and installed as an isolated, free-floating system, gas and noise are virtually eliminated. The exhaust goes largely unnoticed by all, as it is vented far above the aft deck.
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