Browse OBC — Part 6 — HVAC

OBC data status

Content on this site is based on the Ontario Building Code, Ontario Regulation 5/25, as published on e-Laws and last updated January 16, 2025. This site includes excerpts from Division B — Parts 1, 3–12 only. Division A, Division C, and the Appendices are not included.

Articles

84 results

6.1.1.1 — Scope
6.1.1.2 — Application
6.2.1.1 — Good Engineering Practice
6.2.1.2 — Design Indoor Air Temperatures
6.2.1.3 — Structural Movement
6.2.1.4 — Installation Standards
6.2.1.5 — Fireplaces
6.2.1.6 — Heat Recovery Ventilators
6.2.1.7 — Outside Design Conditions
6.2.1.8 — Installation – General
6.2.1.9 — Expansion, Contraction and System Pressure
6.2.1.10 — Asbestos
6.2.1.11 — Access Openings
6.2.1.12 — Combustible Tubing
6.2.2.1 — Required Ventilation
6.2.2.2 — Natural Ventilation
6.2.2.3 — Ventilation of Storage and Repair Garages
6.2.2.4 — Indoor Air Contaminants
6.2.2.5 — Hazardous Gases, Dusts or Liquids
6.2.2.6 — Commercial Cooking Equipment
6.2.2.7 — Crawl Spaces and Attic or Roof Spaces
6.2.3.1 — Application
6.2.3.1A — Drain Pans
6.2.3.2 — Materials in Air Duct Systems
6.2.3.3 — Connections and Openings in Air Duct Systems
6.2.3.4 — Duct Coverings, Linings, Adhesives and Insulation
6.2.3.5 — Underground Ducts
6.2.3.6 — Fire Dampers
6.2.3.7 — Smoke Detector Control
6.2.3.8 — Exhaust Ducts and Outlets
6.2.3.9 — Interconnection of Systems
6.2.3.10 — Ducts in Exits
6.2.3.11 — Make-up Air
6.2.3.12 — Supply, Return, Intake and Exhaust Air Openings
6.2.3.13 — Filters and Odour Removal Equipment
6.2.3.14 — Evaporative Cooling Towers, Evaporative Fluid Coolers and Evaporative Condensers
6.2.3.14A — Evaporative Cooling Sections, Evaporative Air Coolers, Misters, Atomizers, Air Washers and Humidifiers
6.2.3.15 — Fans and Associated Air Handling Equipment
6.2.3.16 — Vibration Isolation Connectors
6.2.3.17 — Tape
6.2.3.18 — Construction and Installation of Ducts and Plenums
6.2.3.19 — Clearances of Ducts and Plenums
6.2.3.20 — Return-Air System
6.2.4.1 — Application
6.2.4.2 — Duct Design
6.2.4.3 — Construction and Installation of Ducts and Plenums
6.2.4.4 — Warm-Air Supply Outlets
6.2.4.5 — Reserved
6.2.4.6 — Adjustable Dampers and Balance Stops
6.2.4.7 — Return-Air System
6.2.4.8 — Coverings, Linings and Insulation
6.2.4.9 — Tape
6.2.4.10 — Clearances of Ducts and Plenums
6.2.4.11 — Exhaust Ducts and Outlets
6.2.4.12 — Make-up Air
6.2.4.13 — Supply, Return, Intake and Exhaust Air Openings
6.2.4.14 — Air Filters and Equipment
6.2.5.1 — Location of Appliances
6.2.5.2 — Appliances Installed Outside the Building
6.2.6.1 — Applicable Standard
6.2.7.1 — Clearances
6.2.8.1 — Lining or Backing
6.2.9.1 — Piping Materials and Installation
6.2.9.2 — Insulation and Coverings
6.2.9.3 — Clearances
6.2.9.4 — Surface Temperature
6.2.9.5 — Protection
6.2.9.6 — Piping in Shafts
6.2.10.1 — Cooling Units
6.2.11.1 — Storage Bins
6.2.11.2 — Ash Storage Bins
6.2.12.1 — Application
6.2.12.2 — Location of Carbon Monoxide Alarms
6.2.12.3 — Installation and Conformance to Standards
6.2.13.1 — Application
6.2.13.2 — General Ventilation
6.2.13.3 — Power-Ventilated Enclosure
6.2.13.4 — Enclosure Exhaust Ventilation
6.2.13.5 — Enclosure Construction
6.3.1.1 — Requirement for Venting
6.3.1.2 — Masonry or Concrete Chimneys
6.3.1.3 — Metal Smoke Stacks
6.3.1.4 — Reserved
6.3.1.5 — Access Ladders