CAN CSA-B149.1-05 PDF


1 to CAN/CSA-B, Natural gas andpropane installation code January Note:General Instructions for CSA Standar ds are now called. 1 Preface This is the thirteenth edition of CAN/CSA-B, Natural gas and propane installation code. It supersedes the previous editions, published. CSABUpdate-Update No. 1 to CAN/CSA-B, Natural Gas and Propane Installation Code-.

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Chimney — a primarily vertical shaft that encloses at least one flue csa–b149.1-05 conducting flue gases outdoors. The Horizontal length of the common vent connector manifold L in Figure C. Ventilated space — a space where there is an air change by means of natural ventilation or mechanical means, or where the space communicates with the rest of the structure by means of permanent openings.

FS — Wolf Steel Ltd. Provide owner with Attachment 2 — FS 8. FS – Quietside Corp. Care or detention occupancy building — any building or part thereof used or occupied by persons who require special care or treatment because of cognitive csa-bb149.1-05 physical limitations, or by persons who are incapable of self-preservation and who are restrained from self-destruction by security measures not under their control. A Type B vent or a certified chimney lining system passing through an unused masonry chimney flue shall not be considered to be exposed to the outdoors.

CAN/CSA-B Natural gas and propane – CSA Group | FlipHTML5

Annex C — Miscellaneous C. The chimney shall first be lined with either a Type B vent, sized in accordance with Tables C. FS — Tirino Corp. Draft-control device — either a draft hood or draft regulator. FS – Wolf Steel Ltd. Careful attention shall be paid not only to the mechanical execution of the work but also to the arrangement of the installation.


Adequate combustion air shall be provided for the water heater. Dwelling unit — a housekeeping unit used or intended to be used as a domicile by one or more persons, and usually containing cooking, eating, living, sleeping, and sanitary facilities. This clearance shall be maintained if it passes through either a combustible wall or partition, in accordance with Table 8. Chimney has capacity and complies with 8. Bedroom — a room furnished with a bed and used primarily for sleeping.

Building — a structure or part thereof used or intended for supporting or sheltering persons, animals, or property and classified by its occupancy in accordance with the applicable building code of authority having jurisdiction or, in the absence of such, in accordance with the National Building Code of Canada.

Provide owner with Attachment 1 – FS Documents Flashcards Grammar checker. FS – Interpreting Clause 8. All measurements shall be taken between the outermost projection of the appliance and surrounding structure or property line after the appliance has been installed.

Metal chimney — a single-wall chimney of metal constructed on site. Factory-built chimney — a chimney that consists entirely of factory-made parts, each designed to be assembled with the other without requiring fabrication on site. A chimney with one or more sides exposed to the outside of the structure shall be considered to be an exterior chimney.

Standards Council of Canada

Except for direct vent water heaters, when the water heater is contained in an enclosure, permanent openings cs-ab149.1-05 be provided as described in Clause 8. Direct-vent appliance — an appliance constructed so that all the combustion air is supplied directly from, and the products of combustion are vented directly to, the outdoors by independent enclosed passageways connected directly to the appliance.

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Exterior chimneys or vents not enclosed by the structure or a chase below the roof line can experience continuous condensation, depending on locality. Draft hood — a draft-control device having neither movable nor adjustable parts. Residential appliance — an appliance commonly used in, but not restricted to use csab-149.1-05, a dwelling unit.

FS – Maintenance vs. An enclosure containing the water heater shall not be accessed by a pedestrian door which can be opened from the bathroom or bedroom. The DP column shall be used to determine the capacity of a venting system within a building constructed in accordance with Clause 8. Corrugated metal vent systems installed with bends or offsets require additional reduction of the vent capacity see Clause C. It is designed to a ensure the ready escape of flue gases from the combustion chamber in the event of either no draft or stoppage caa-b149.1-05 from the draft hood; b prevent a backdraft from entering the combustion chamber of the appliance; and c neutralize the effect of stack action of either a chimney or a vent upon the operation of the appliance.