Hubbell Electric Heater Company, a manufacturer of Naval qualified water heaters, has announced that the company has been awarded a contract from HII-Ingalls Shipbuilding for the U.S. Navy USS Tripoli (LHA-7) large-deck amphibious assault ship. The Hubbell contract consists of several types of Naval qualified water heaters including Hubbell’s state-of-the-art semi-instantaneous heaters. The specially designed water heaters provide potable hot water for the crew and are capable of withstanding the shock and vibration environment of a combat vessel.