Current through May 31, 2024
Section 63.11200 - What are the subcategories of boilers?The subcategories of boilers, as defined in § 63.11237 are:
(e) Oil-fired boilers with heat input capacity of equal to or less than 5 million British thermal units (Btu) per hour.(f) Boilers with an oxygen trim system that maintains an optimum air-to-fuel ratio that would otherwise be subject to a biennial tune-up.