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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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. The chimney shall first be lined with either a Type B vent, sized in accordance with Tables C.

Adequate combustion air shall be provided for the water heater. Chimney — a primarily vertical shaft that encloses at least one flue for conducting flue gases outdoors. 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.

Imperfect in form or function. Bedroom — a room furnished with a bed and used primarily for sleeping. The Horizontal length of the common vent connector manifold L in Figure C. Annex C — Miscellaneous C. 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. 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.

Csa-b149.1-50 — a secondary structure room within or attached to a structure building in which an appliance is installed. FS – Interpreting Clause 8. Dwelling unit — csa-b1491-05 housekeeping unit used or csa-b149.1-055 to be used cab a domicile by one or more persons, and usually containing cooking, eating, living, sleeping, and sanitary facilities.


FS — Tirino Corp. Category IV appliances unless installed in designated R homes or in an enclosure. Commercial- and industrial-type appliance or equipment — an appliance or equipment other than a residential or recreational type. All measurements shall be taken between the outermost projection of the appliance and surrounding structure or property line after the appliance has been installed.

An enclosure containing the water heater shall not be accessed by a pedestrian door which can be opened from the bathroom or bedroom. Careful attention shall be paid not only to the mechanical execution of the work but also to the arrangement of the installation.

B Quick Code Reference

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.

The DP column shall be used to determine the capacity of a venting system within a building constructed in accordance with Clause 8. FS – Wolf Steel Ltd. Provide owner with Attachment 1 – FS This clearance shall be maintained if it passes through either a combustible wall or partition, in accordance with Table 8.

A double-acting draft regulator is one whose balancing damper is free to move in either direction. A draft hood may be built into an made part of a vent connector.

Draft-control device — either a draft hood or draft regulator.

CAN/CSA B149.1-05

Except for direct vent water heaters, when the water heater is contained in an enclosure, permanent openings shall be provided as described in Clause 8. Strategies of adaptation to an extreme environment: Care or detention occupancy building — cna 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.


Draft hood — a draft-control device having neither movable nor adjustable parts. 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 ccsa-b149.1-05 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.

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.

FS – Quietside Corp. 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 control device.

CAN/CSA-B | Standards Council of Canada – Conseil canadien des normes

Provide owner with Attachment 2 — FS 8. FS – Maintenance vs. Corrugated metal vent systems installed with bends or offsets require additional reduction of the vent capacity see Clause C.

Exterior chimneys or vents not enclosed by the structure or a chase below the roof line can experience continuous condensation, depending on locality. Documents Flashcards Grammar checker. Residential appliance — an appliance commonly used in, but not restricted to use in, a dwelling unit.

Bed-sitting room — A one-room apartment serving as both a bedroom and a sitting room. Chimney has capacity and complies with 8. A chimney with one or more sides exposed to the csz-b149.1-05 of the structure shall be considered cea-b149.1-05 be an exterior chimney. FS — Wolf Steel Ltd. Metal chimney — a single-wall chimney of metal constructed on site.