{"data":{"id":"us/46-cfr-182.320","jurisdiction":"us","citation":"46 CFR 182.320","heading":"Water heaters.","body":"(a) A water heater must meet the requirements of parts 53 and 63 of this chapter if rated at not more than 689 kPa (100 psig) and 121 °C (250 °F), except that an electric water heater is also acceptable if it:\n(1) Has a capacity of not more than 454 liters (120 gallons);\n(2) Has a heat input of not more than 58.6 kilowatts (200,000 Btu per hour);\n(3) Is listed under UL 174, UL 1453 (both incorporated by reference; see 46 CFR 175.600) or other standard specified by the Commandant; and\n(4) Is protected by a pressure-temperature relief device.\n(b) A water heater must meet the requirements of parts 52 and 63 of this chapter if rated at more than 689 kPa (100 psig) or 121 °C (250 °F).\n(c) A water heater must be installed and secured from rolling by straps or other devices to the satisfaction of the cognizant OCMI.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER T—SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS)","PART 182—MACHINERY INSTALLATION","Subpart C—Auxiliary Machinery"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-46.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:22Z","sha256":"5ce285f901605ece83f19d3417a4473148b77b66602158c69b34074adb789176","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-182.310","next":"us/46-cfr-182.330"},"notice":"GroundRules: Original legal text. Not legal advice."}