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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Provide owner with Attachment 2 — FS 8. 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.

Flue collar — that portion of an appliance designed for the attachment of a draft hood, vent connector, or venting system. Residential building — any building or part thereof used by persons for whom sleeping accommodation is provided but who are not harboured or detained to receive medical care or treatment or are not involuntarily detained. 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 downstream 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.

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

Vent connector — that part of the venting system that conducts the flue gases from the flue collar of an appliance to a chimney or vent, and that may include a draft fan device. A chimney with one or more sides exposed to the outside of fsa-b149.1-05 structure shall be considered to be an exterior chimney.

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. Metal chimney — a single-wall chimney of metal constructed on site.


Standards Council of Canada

Category IV appliances unless installed in designated R homes or in an enclosure. Flue gas dilution air — the ambient air that is admitted to a venting system at the draft hood, draft diverter, or draft regulator.

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. Careful attention shall be csa-b149.-105 not only to the mechanical execution of the work but also to the arrangement of the installation.

Exterior chimneys or vents not enclosed by the structure or a chase below the roof line can experience continuous condensation, depending on locality.

B149.1-05 Quick Code Reference

Provide owner with Attachment 1 – FS FS — Tirino Corp. Residential appliance — an appliance commonly used in, but not restricted to use in, a dwelling unit. An enclosure containing the water heater shall not be accessed by a pedestrian door which can be opened from the bathroom or bedroom. Except for direct vent water heaters, when the water heater is contained in an enclosure, permanent openings shall be provided as ca-b149.1-05 in Clause 8.

Ventilated space — a space where there is an air change by means of natural ventilation or mechanical means, or where the space communicates with cwn rest of the structure csa-b149.1–05 means of permanent openings.

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.

Chimney — a primarily vertical shaft that encloses at least one flue for conducting flue gases outdoors. Annex C — Miscellaneous C. A double-acting draft regulator is one whose balancing damper is free to move in either direction. The chimney shall first be lined with csn a Type B vent, sized in accordance with Tables C.


Commercial- and industrial-type appliance or equipment — an appliance or equipment other than a residential or recreational type.

Direct-vent appliance — an appliance constructed so that all the csa-b194.1-05 air is supplied directly from, and the products of combustion are vented directly to, the outdoors by independent enclosed passageways csz-b149.1-05 directly to the appliance. Strategies of adaptation to an extreme environment: Care or detention occupancy building — any building or part thereof used or occupied by persons who require special care or treatment because of cognitive or 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.

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

The Horizontal length of the common vent connector manifold L in Figure C. FS – Wolf Steel Ltd. FS – Maintenance vs. Corrugated metal vent systems installed with bends or offsets require additional reduction of the vent capacity see Clause C.

Adequate combustion air shall be provided for the water heater. FS — Wolf Steel Ltd. This clearance shall be maintained if it passes through either a combustible wall or partition, in accordance with Table 8. The DP column shall be used to determine the capacity of a venting system within a building constructed in accordance with Clause 8.

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