Section 8 in The Rajasthan Boiler Operation Engineers' Rules, 1967
8. When boiler is deemed to be in use.
(a)A boiler shall be deemed to be in use for the purpose of these rules when there is fire in the furnace, firebox or fireplace 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.(b)An economiser shall be deemed to be in use for the purpose of these rules when there is flow of fuel gases past the economiser and an appreciable heat transfers between the water and the heating gases.III. Board of Examiners
