3.2 Exhaust-fired thermal oil heaters
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.601 – Fire Protection in Machinery Spaces – (Adopted on 29 January 1993) - Annex 1 - F35 Rev.2 1991 - Fire protection of machinery spaces - 3 Thermal oil installations - 3.2 Exhaust-fired thermal oil heaters

3.2 Exhaust-fired thermal oil heaters

  .1 The heater shall be so designed and installed that all tubes may easily and readily be inspected for signs of corrosion and leakage.

  .2 Visual inspection and tightness testing of the heater tubes to not less than the working pressure shall be carried out annually, and hydraulic testing shall be carried out bi-annually.

  .3 The heater shall be fitted with temperature sensor(s) and an alarm for fire detection.

  .4 A fixed fire extinguishing and cooling system shall be fitted. A drenching system providing copious amounts of water may be accepted. The exhaust ducting below the exhaust boiler shall be arranged for adequate collection and drainage, to prevent water flowing into the diesel engine. The drain shall be led to a suitable location.


Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.