Code Library › Volume 1 › Section 6.2 — Design and Installation

PART 6 — HEATING, VENTILATING AND AIR-CONDITIONINGUpdated for the 2024 Ontario Building Code

6.2.1.8.Combustible Tubing

(1) Combustible tubing for pneumatic controls may be used in buildings required to be of noncombustible construction
  provided it has an outside diameter not exceeding 10 mm.

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.