PART 6 — HEATING, VENTILATING AND AIR-CONDITIONINGUpdated for the 2024 Ontario Building Code
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6.4.3.1.Lining or Backing
(1) A noncombustible lining or backing shall be provided for every steam or hot water radiator and convector
(a) located in a recess or concealed space, or
(b) attached to the face of a wall of combustible construction or encapsulated mass timber construction.
(2) Every steam or hot water radiator and convector shall be installed so as to conform to the clearance requirements of
Table 6.7.1.2.
This provision includes a table — formatting is preserved from the source; refer to the official code for the authoritative layout.
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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.