Section 680IAC2-4-51. "Waste heat boiler" defined

   (a) "Waste heat boiler" means a closed vessel which is intended to be operated under pressure or vacuum for the purpose of heating water or generating steam for external use by the application of heat.

  (b) The configuration of the unit shall govern the parts and sections of the boiler and pressure vessel rules applicable to its design, construction, fabrication, and inspection as follows:

(1) If the unit contains tubes, drums, and accessories commonly associated with boilers, the sections applicable to power boilers shall apply.

(2) If the unit contains a shell, tube bundle, and channel commonly associated with heat exchangers, the sections applicable to unfired pressure vessels shall apply.

(Boiler and Pressure Vessel Rules Board; 680 IAC 2-4-51; filed Jan 5, 1996, 10:15 a.m.: 19 IR 1123; readopted filed Jul 9, 2001, 1:33 p.m.: 24 IR 3822; readopted filed Sep 21, 2007, 9:16 a.m.: 20071010-IR-680070389RFA; readopted filed Oct 19, 2007, 1:08 p.m.: 20071114-IR-680070389RFA; readopted filed Sep 5, 2013, 10:09 a.m.: 20131009-IR-680130182RFA)