Section 8 in The Orissa Boiler Operation Engineers' Rules, 2000
8. When boiler deemed to be in use.
(1)A boiler shall be deemed to be in use for the purpose of these rules when there is fire in the furnace, fire box or fire place for the purpose of heating the water in the boiler or under banked fire condition. A boiler shall be deemed to be not in use only when the fire is removed and all steam and water connections are closed.(2)An economiser or waste heat boiler shall be deemed to be in use for the purpose of these rules when there is a flow of heating gases or other heating media past the economiser or waste heat boiler and an appreciable heat transfer takes place between the water and heat in gas/media.Chapter-III Board of Examiners
