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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Category IV appliances unless installed in designated R homes or in an enclosure. Enclosure — a secondary structure room within or attached to a structure building in which an appliance is installed. 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.

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. Chimney — a primarily vertical shaft that encloses at least one flue for conducting flue gases outdoors.

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

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. Annex C — Miscellaneous 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 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.


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.

Strategies of adaptation to an extreme environment: FS – Interpreting Clause 8. Draft-control device — either a draft hood or draft regulator. This clearance shall be maintained if it passes through either a combustible wall or partition, in accordance with Table 8.

CAN/CSA B149.1-05

FS — Tirino Corp. Bedroom — a room furnished with a bed and used primarily for sleeping. FS — Wolf Steel Ltd. FS – Quietside Corp. csa-b149.11-05

Provide owner with Attachment csaa-b149.1-05 – FS Bed-sitting room — A one-room apartment serving as both a bedroom and a sitting room. Draft hood — a draft-control device having neither movable nor adjustable parts. Flue collar — that portion of an appliance designed for the attachment of a draft hood, vent connector, or venting system.

B Quick Code Reference

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 csq-b149.1-05 include a draft control device.

FS – Maintenance vs. Documents Flashcards Grammar checker. FS – Wolf Steel Ltd. The chimney shall first be lined with either a Type B vent, sized in accordance with Tables C. Imperfect in form or function. The Horizontal length of the common vent connector manifold L in Figure C. A double-acting draft regulator is one whose balancing damper is free to move in either direction.

Standards Council of Canada

The DP column shall be used to determine the capacity of a venting system within a building constructed in accordance with Clause 8. Flue gas dilution air — the ambient air that is admitted to a venting system at the draft hood, draft diverter, or draft regulator.

Metal chimney — a single-wall chimney of metal constructed on site. 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. All measurements shall be taken between the outermost projection of the appliance and surrounding structure or property line after the appliance has been installed. 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.


Chimney has capacity and complies with 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. A draft hood may be built into an made part of a vent connector. Commercial- and industrial-type appliance or equipment — an appliance or equipment other than a residential or recreational type.

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.

Adequate combustion air shall be provided for the water heater. Careful attention shall be paid not only to the mechanical execution of the work but also to the arrangement of the installation. 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.

A chimney with one or more sides exposed to the outside of the structure shall be considered to be an exterior chimney. Corrugated metal vent systems installed with bends or offsets require additional reduction of the vent capacity see Clause C.

Provide owner with Attachment 2 — FS 8.