Vent piping.
Denver Revised Municipal Code § 31-27
in effectSec. 31-27. - Vent piping.
(a) Any vent pipes or ducts which conduct solvent vapors removed from dry cleaning machines and processes, shall have vapor-proof joints and shall discharge outside unless a solvent vapor reclaiming device is provided. They shall not discharge into any flue for combustion products nor into any building ventilating duct.
(b) Solvent vapor discharged as in subsection (a) shall be so controlled that it shall not create a health hazard or nuisance, as determined by the manager of public health and environment, to the occupants of the same or adjoining building or result in excessive concentrations of solvent vapors pursuant to the maximum allowable concentrations established for public access areas.
(c) Heating appliances lacking sealed combustion chambers and open flame heating appliances shall not be located in the same room with the dry cleaning machine, unless it is physically separated to prevent air containing more than five (5) parts per million solvent vapor coming into contact with fire or open flame. Such heating equipment shall be fitted with a corrosion-resistant flue and draft hood and shall convey products of combustion out-of-doors.
(Code 1950, § 972.2-13; Ord. No. 1110-96, § 1, 12-16-96; Ord. No. 427-18, § 18, 6-11-18)
Source: City and County of Denver, Revised Municipal Code and Charter (Municode Library, library.municode.com)URL: https://library.municode.com/co/denver/codes/code_of_ordinances?nodeId=TITIIREMUCO_CH31LA_ARTIIDRCLES_DIV1GE_S31-27VEPIFetched: 10/27/2026