US lawIllinoisRegulationsTitle 35 — ENVIRONMENTAL PROTECTIONCHAPTER I: POLLUTION CONTROL BOARDSUBCHAPTER c: EMISSION STANDARDS AND LIMITATIONS FOR STATIONARY SOURCESPart 211 — DEFINITIONS AND GENERAL PROVISIONSSubpart B211.21035 Ill. Adm. Code 211.210Actual Heat InputLast amended: 1993Year: 2026Length: 29 wordsOfficial source Section 211 Section 211.210 Actual Heat Input "Actual heat input" means the quantity of heat produced by the combustion of fuel using the gross heating value of the fuel.Previous35 Ill. Adm. Code 211.200Next35 Ill. Adm. Code 211.230