R307-315-2. Applicability

(1) Rule R307-315 applies to each boiler that: (a) is fueled exclusively by natural gas; (b) has a total rated heat input at least 2.0 MMBtu/hr and not more than 5.0 MMBtu/hr; (c) is an industrial boiler, institutional boiler, or commercial boiler; (d) is located in Salt Lake, Utah, Davis, Weber, or Tooele County; and (e) undergoes one of the following after the compliance date defined in Subsection R307-315-6(4): (i) installs a boiler; (ii) replaces an existing boiler; (iii) replaces the components of a boiler such that the fixed capital cost of the new components exceeds 50% of the fixed capital cost that would be required to construct a comparable new boiler; (iv) replaces a burner in a boiler having only a single burner; or (v) replaces 50% or more of the burners in a multi-burner boiler. (2) Exemptions to this rule include: (a) residential boilers as defined in this rule; (b) CO boilers as defined in this rule; (c) waste heat boilers as defined by this rule; (d) process heaters as defined by this rule; and (e) temporary boilers as defined by this rule.