For other than Group R-2, R-3, R-4 and R-5 occupancies that are four stories or less in height above grade plane, piping to the inlet of a water heater and piping conveying water heated by a water heater shall be insulated in accordance with Section C404.4 of the Chicago Energy Conservation Code. For Groups R-2, R-3, R-4 and R-5 that are four stories or less in height above grade plane, piping to the inlet of a water heater and piping conveying water heated by a water heater shall be insulated in accordance with Section R403.5.3 of the Chicago Energy Conservation Code.
(Amend Coun. J. 10-14-21, p. 37722, Art. VI, § 27)