Where the boiler is equipped with an internal furnace, the water level shall not be less than one-third of the length of the tubes above the top of the furnace tube sheet.
229 Neb. Admin. Code, ch. 23, § 006
Where the boiler is equipped with an internal furnace, the water level shall not be less than one-third of the length of the tubes above the top of the furnace tube sheet.
229 Neb. Admin. Code, ch. 23, § 006