{"data":{"id":"us/46-cfr-63.25-7","jurisdiction":"us","citation":"46 CFR 63.25-7","heading":"-7 Exhaust gas boilers.","body":"(a) Construction. An auxiliary exhaust gas boiler must meet the applicable construction requirements of part 52 or part 53 of this subchapter as determined from table 1 to § 54.01-5 of this subchapter.\n(b) Controls. Each drum type exhaust gas steam boiler must have a feed water control system. The system must automatically supply the required amount of feed water and maintain it at the proper level. For boilers without a fixed water level, the control system must supply the feed water at a rate sufficient to ensure proper heat transfer. The system must adequately fill the boiler when cold.\n(c) Alarms. When a condition arises which results in inadequate heat transfer, a high temperature alarm or low flow alarm must be activated. An audible alarm must automatically sound, and a visual indicator must indicate when the fluid temperature exceeds the maximum operating temperature or when the fluid/steam flowing through the heat exchanger is insufficient to ensure proper heat transfer. Additionally, an audible alarm must automatically sound, and a visual indicator must indicate when a soot fire is present in the exhaust gas boiler's uptake.","path":["Title 46—Shipping","CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY","SUBCHAPTER F—MARINE ENGINEERING","PART 63—AUTOMATIC AUXILIARY BOILERS","Subpart 63.25—Requirements for Specific Types of Automatic Auxiliary Boilers"],"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":"10fe3bdc8a6c5e72135bb32704c886f918c42ad238ba6ac9625367909d9ff24f","source_id":"us-cfr","stale":true,"prev":"us/46-cfr-63.25-5","next":"us/46-cfr-63.25-9"},"notice":"GroundRules: Original legal text. Not legal advice."}