The B149.1-10 Natural gas and propane installation code becomes law in Ontario, December 1, 2012.
To update the B149.1-10 to the latest update and amendments follow the directions below.
1. Download the B149.1-10 with Update No 1 - https://anonfiles.com/file/cefb55739683ba7a57377bb46315ed7e
2. Download the B149.1 Code Adoption Document Amendments FS-200-12-R2 - Here (http://www.hvactechgroup.com/files/fs200-12R2.pdf)
October 1, 2014 Update - FS-212-14 replaces FS-200-12-R2. Download it - Here (http://www.hvactechgroup.com/hvacforum/index.php?topic=1500.0)
3. Download the TSSA Field Approval Code TSSA-FA-2012 - Here (http://www.hvactechgroup.com/files/fa2012a.pdf) and insert it at the back of the gas code.
4. Download the TSSA Digester, Landfill and Biogas Approval Code DLB-2012 - Here (http://www.hvactechgroup.com/files/dlb2012a.pdf) and insert it at the back of the gas code.
You're now up to date and ready for December 1, 2012.
Here is a review of changes to the B149.1-05 as it becomes the B149.1-10 with FS-200-12-R2 updates. Below are the B149.1-10 new & amended Clauses and the FS-200-12-R2 new & amended Clauses & Sections.
Note: The B149.1-10 & FS-200-12-R2 amendments that are the same as previous B149.1-05 revisions are not listed below. (See FS-098-07 (http://www.hvactechgroup.com/article.php/20070430032400807), FS-144-09 (http://www.hvactechgroup.com/article.php/20090407164415318) & FS-160-09-R1 (http://www.hvactechgroup.com/article.php/20100311154847461))
Download a list of changes made by the B149.1-10 - Here (http://www.hvactechgroup.com/files/B149.1-10.xls)
Download a list of changes made by FS-200-12-R2 - Here (http://www.hvactechgroup.com/files/FS-200-12-R2.xls)
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B149.1-10 - New Clauses Added;
UPDATE NO. 1 - ADDED - Gas connector
a factory-fabricated assembly consisting of gas conduit and related fittings designed to convey gaseous fuel from a gas supply piping to the gas inlet of an appliance. A gas connector is not intended for vibration isolation, nor expansion or contraction control. For the purposes of this Code, gas connector includes
(a) gas connectors for gas appliances that are not designed for repeated movement after being connected nor for repeated disconnecting and connecting and are not intended to be used with quick-disconnect devices or convenience outlets;
(b) gas connectors for movable gas appliances that are designed for repeated movement on a regular basis and could be used with quick-disconnect devices or convenience outlets; and
(c) gas connectors for outdoor gas appliances and manufactured homes that are designed for supplying gas to an appliance for outdoor installation that is not frequently moved after installation and to the gas inlet on a mobile home.
UPDATE NO. 1 - ADDED - Gas hose
a factory-fabricated flexible hose assembly and related fittings designed to convey gaseous fuel from a gas supply piping to the gas inlet to an appliance.
ADDED - Clause 4.7.3
All interior metal gas piping that may become energized shall be made electrically continuous and shall be bonded in accordance with the requirements of the local electrical code or, in the absence of such, the Canadian Electrical Code, Part I.
See the FS-200-12-R2 amended Clause 4.7.3.
ADDED - Clause 5.2.1.6
A pressure regulator provided in a gas supply line shall not be installed
(a) where it is inaccessible for repair, replacement, servicing, or inspection;
(b) in a concealed location; or
(c) where it could be reasonably expected to be subject to physical or chemical damage.
ADDED - Clause 6.2.21
Corrugated stainless steel tubing (CSST) shall not be used as a gas connector.
ADDED - Clause 6.11.5
Corrugated stainless steel tubing (CSST) systems and copper tubing shall only be connected to an appliance secured in place (nonmovable).
ADDED - Clause 6.14.8
Corrugated stainless steel tubing (CSST) or copper tubing shall not be used to connect to a meter, unless the meter assembly is independently supported.
ADDED - Clause 8.3.7
An air-supply opening shall not be located within 3 ft (1 m) of a moisture exhaust duct.
Note: A moisture-exhaust duct (e.g., a gas or electric clothes dryer discharge; spa exhaust) is considered to interfere with the combustion air intake when located within 3 ft (1 m) of the air intake.
Very similar to existing Clause 7.5.2
ADDED - Clause 8.14.8(a)
A vent shall not terminate
(a) where it may cause hazardous frost or ice accumulations on adjacent property surfaces;
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FS-200-12-R2 - New Sections/Clauses Added or Revoked;
ADDED - Section 4.25 & Clause 4.25.1
Mandatory Safety Checks for Residential (one or two family Dwelling) Natural Draft Boilers Equipped With Draft Hoods 300,000 BTU's or Less.
Director's order FS-072-06 has been added to the Code. See Annex M.
REVOKED - Clause 6.18.3
The requirements for an individual manual shut-off valve specified in Clause 6.18.2 may be waived when a readily accessible single manual shut-off valve is
(a) installed for commercial cooking appliances manifolded in line; or
(b) installed in common supply piping to more than one direct-vent room heater that is part of a heating system in a dwelling unit, provided that it is less than 50 ft (17 m) away from each appliance.
ADDED - Clause 6.18.3.1
The requirements that for each appliance, an individual manual shut-off valve be installed as specified in Clause 6.18.2 may be waived when a readily accessible single manual shut-off valve is;
(a) installed for commercial cooking appliances manifolded in line; or
(b) installed in common supply piping to more than one direct-vent room heater that is part of a heating system in a dwelling unit, provided that it is less than 50 ft (17 m) away from each appliance.
ADDED - Clause 6.18.3.2
The requirement for a manual shut-off valve specified in Clause 6.18.2 (b) to be readily accessible may be waived when it is located;
(a) behind a residential gas range; and/or
(b) behind a residential gas clothes dryer.
Shut off valves are no longer required to be readily accessible on a range or dryer.
REVOKED - Clause 6.22.4
An addition to an existing piping or tubing system shall be tested as an individual system in accordance with Clause 6.22, except that
(a) where the addition is 20 ft (6 m) or less in length and the normal working pressure is less than
0.5 psig (3.5 kPa), the addition shall be leak tested in accordance with Clause 6.22.3(e); and
(b) where the addition is accomplished using a welded tie-in, and the new system has been tested in compliance with Clause 6.22, the tie-in weld shall be tested in accordance with Clause 6.22.3(e)
ADDED - Clause 6.22.4.1
An addition to an existing piping or tubing system shall be tested as an individual system in accordance with Clause 6.22, except that:
(a) where the addition is:
(i) 20 ft (6 m) or less in length, or
(ii) one continuous length of piping or tubing not containing fittings and the normal working pressure is less than 0.5 psig (3.5 kPa), the addition shall be leak tested in accordance with Clause 6.22.3(e); and
(b) where the addition is accomplished using a welded tie-in, and the new system has been tested in compliance with Clause 6.22, the tie-in weld shall be tested in accordance with Clause 6.22.3(e).
ADDED - Clause 6.22.4.2
A replacement appliance connection to an existing piping or tubing system where the normal working pressure is less than 0.5 psig (3.5 kPa) shall be leak tested in accordance with Clause 6.22.3(e).
When adding less than 20' of piping or installing a replacement appliance, only a soap test is required as described in 6.22.3(e).
ADDED - Clauses 7.1.7, and 7.1.10
New boiler requirements.
ADDED - Clause 7.26.9
A water heater shall be installed:
(a) If of the storage type, in a level manner on a firm and stable base sufficient to bear its expected in-service weight; and
(b) if of the wall hung type, secured on a wall in a manner suitable to support its filled weight.
Water heater installation requirements
REVOKED - Clause 7.32.5
A residential-type range certified for zero side and rear clearances may be installed with zero side clearance from combustible material, provided that there is a 1" (25mm) clearance at the back and a 28 MSG (0.3mm) sheet metal shield on the side walls spaced out a minimum of 0.25" (6mm). The shield shall extend from the rear wall to the front edge of the range and from 5" (125mm) below to 30" (750mm) above the cooking surface.
A good decision removing Clause 7.32.5, as not many gas ranges in Ontario comply.
ADDED - Clause 7.34
Field Approval of Special Effects Natural gas or propane used in connection with Field Approval of Special Effects shall comply with Annex K.
See Annex K.
ADDED - Clause 7.35
Requirements for the operation of Appliances at shows, exhibitions, or other similar events. Natural gas or propane used in connection to Appliances and Cylinders at Shows, Exhibitions, or other Similar Events shall comply with Annex J.
See Annex J.
ADDED - C.2.17
For Single Appliance Venting Applications:
Where the vertical vent has a larger diameter than the vent connector, the vertical vent diameter shall be used to determine the minimum vent capacity and the vent connector diameter shall be used to determine the maximum vent capacity. The flow area of the vertical vent shall not exceed 7 times the flow area of the listed appliance categorized vent area, flue collar area, or draft hood outlet area unless designed with approved engineering methods.
It makes no sense to me that you would use the larger vent to determine the minimum vent capacity and use the smaller vent to determine the maximum vent capacity?!
For Multiple Appliances Venting Applications:
Where 2 or more appliances are connected to a vertical vent or chimney the flow area of the largest section of vertical vent or chimney shall not exceed 7 times the flow area of smallest listed appliance categorized vent area, flue collar area, or draft hood outlet area unless designed with approved engineering methods.
REVOKED - Annex D
Customer's meter and regulator installations.
CSA Z662-11 shall now govern.
ADDED - TSSA-FA-2012
TSSA Field Approval Code
ADDED - TSSA-DLB-2012
TSSA Digester, Landfill and Biogas Approval Code
Support this site by donating - Here (http://www.hvactechgroup.com/files/paypal.html)
B149.1-10 - Clauses Amended;
UPDATE NO. 1 - AMENDED - Table C3
Re-added 30' section on Pg.197.
AMENDED - Clause 5.5.4
Except as specified in Clause 5.5.5, when a pressure regulator with internal relief or a gas overpressure relief valve is installed, it shall be vented separately to a safe location outdoors by a vent line
(a) of steel pipe, or of seamless steel tubing or copper tubing that complies with Clause 6.2; and
(b) of a size
(i) at least equal to the nominal pipe size of the vent outlet of the valve or regulator increased as specified by the manufacturer's instructions; or
(ii) in the absence of manufacturer's instructions, increased by one pipe size diameter for every 50 ft
(15 m) or part thereof that the vent line extends
AMENDED - Clause 5.5.5
When two or more gas overpressure relief valves are installed, they may be connected into a single vent
line, provided that
(a) there is compliance with Clause 5.5.4;
(b) the single vent line has an area equal to the largest relief valve opening plus 50% of the total area of the other relief valve openings;
(c) the variance between the inlet pressures of the overpressure relief valves does not exceed 10%; and
(d) the variance between the inlet pressures and the variance between the outlet pressures of the relief valves does not exceed 10%.
AMENDED - Clause 5.6.1.3
When an appliance pressure regulator without internal relief having an inlet pressure not in excess of 2 psig (14 kPa) is installed on an appliance, it shall be vented to the outdoors unless it is constructed or equipped with a device to limit the escape of gas from the vent opening in the event of diaphragm
failure. In addition, the opening in the device shall restrict the escape of gas to not more than 1 ft3/h (0.0283 m3/h) of a gas having a specific gravity of 1.53. A regulator with vent limiting means shall be installed in a ventilated space only.
AMENDED - Clause 6.2.5
Flare nuts shall be forged from UNS C37700 brass and shall not be externally machined.
AMENDED - Clause 6.11.2
An appliance permitted by Clauses 6.20 and 6.21 for use with a gas hose may be connected to the building piping by means of an approved quick-disconnect device, and where a quick-disconnect device is used, a readily accessible manual shut-off valve shall be installed upstream of, and as close as practicable to, the quick-disconnect device.
AMENDED - Clause 6.15.14
Plastic piping or tubing shall be accompanied by a tracing wire or other electronically detectable tracing media.
AMENDED - Clause 6.16.3
Piping or tubing shall be mounted, braced, and supported to provide for expansion, contraction, jarring, vibration, and settling, and shall be protected against either damage or breakage due to strain, wear, and mechanical impact.
Note: Moving snow loads and ice on sloped roofs have been known to damage or break pipes.
AMENDED - Clause 6.16.8
When piping or tubing passes through masonry or concrete, the portion of piping or tubing that runs through this material shall be sleeved or double wrapped with a waterproof wrap.
AMENDED - Clause 6.20.1
Except as permitted in Clause 7.22.3, a gas hose connection to a vented appliance shall be prohibited.
AMENDED - Clause 6.20.2
A gas hose may be used with an unvented appliance when such an appliance is mobile during operation, is portable, or requires isolation from vibration.
AMENDED - Clause 6.20.3
When a gas hose is used
(a) for permanent installation, it shall not exceed 10 ft (3 m) in length and shall neither extend from one room to another nor pass through any wall, partition, ceiling, or floor;
(b) for a portable appliance, it shall not exceed 30 ft (9.5 m) unless otherwise stated in the appliance standard;
(c) for connecting a construction heater, it shall be neither less than 15 ft (4.6 m) nor more than 75 ft (24 m) in total length;
(d) for cutting, welding, and preheating equipment, it shall not exceed 100 ft (30 m) in length;
(e) it shall not be subject to a temperature in excess of 125°F (50 °C);
(f) a slip-on end shall not be permitted;
(g) the shut-off valve for the appliance shall be in the gas supply piping or tubing and as close as practicable to the gas hose;
(h) it shall be protected from damage;
(i) the handle or hand wheel of a shut-off valve on an independent connection shall not be closer than 6 in (150 mm) from the handle or hand wheel of any other shut-off valve;
(j) a shut-off valve shall not be placed at floor level or in any other location where it can be turned on by accident; and
(k) from a wall outlet, it shall be located where the passage of persons, vehicles, or equipment across the gas hose is at a minimum.
AMENDED - Clause 6.20.4
When a sign of wear, deterioration, or other damage is apparent in the reinforcement material of a gas hose, the gas hose shall be replaced immediately.
AMENDED - Clause 6.20.5
A metallic gas hose
(a) may be used to connect an appliance in commercial, industrial, or process applications when vibration, expansion, contraction, or other circumstances of an appliance installation warrant its use;
(b) shall not be used in a concealed location;
(c) shall neither extend from one room to another nor pass through any wall, partition, ceiling, or floor; and
(d) when used to connect an appliance to rigid supply piping, shall have a shut-off valve in the piping immediately upstream of the metallic gas hose.
AMENDED - Clause 6.21.1
A gas connector shall comply with ANSI Z21.24/CSA 6.10 or ANSI Z21.69/CSA 6.16 or ANSI Z21.75/CSA 6.27.
AMENDED - Clause 6.21.2
A gas connector shall
(a) be protected from damage;
(b) not pass through a wall, floor, ceiling, or partition;
(c) be connected to rigid piping or tubing located in the same area as the appliance; and
(d) comply with Clauses 4.5.2 and 4.9.1.
AMENDED - Clause 6.21.3
Except as specified in Clause 7.22.3, a corrugated metal gas connector certified to ANSI Z21.24/CSA 6.10 may be used to connect
(a) a range, refrigerator, clothes dryer, or built-in counter appliance to piping or tubing, provided that the connector length does not exceed 6 ft (2 m);
(b) a suspended appliance to piping or tubing, provided that the gas connector length does not exceed 2 ft (600 mm); or
(c) a decorative appliance, a room heater, or a direct-vent wall furnace to piping or tubing, except when the appliance, heater, or furnace is installed as a free-standing unit, provided that the gas connector length does not exceed 2 ft (600 mm).
AMENDED - Clause 6.21.4
Commercial cooking appliances certified for use with casters or otherwise subject to movement during cleaning and other large gas utilization equipment that can be moved shall be connected by a certified gas connector in accordance with ANSI Z21.69/CSA 6.16.
AMENDED - Clause 6.21.5
When the gas connector described in Clause 6.21.4 is used with a commercial cooking appliance installed on wheels or rollers, a noncombustible restraining device shall be provided to protect the gas connector, and the installation shall be in accordance with Clause 7.31.4.
AMENDED - Clause 6.21.6
A gas connector not exceeding 2 ft (600 mm) may be used on a vented appliance, such as a free-standing space heater, provided that the appliance is secured to prevent dislodgement of the vent.
AMENDED - Clause 6.21.7
Where a mobile home is not on a permanent foundation, the mobile home may be connected by a gas connector certified to ANSI Z21.75/CSA 6.27.
AMENDED - Section 6.25
6.25 Rooftop gas piping and tubing
AMENDED - Clause 6.25.1
Piping may be supported with treated wood blocks or material having at least equivalent characteristics as wood blocks and protection against outdoor exposure. The support spacing for piping NPS 1 and greater shall comply with Table 6.2 and support shall be provided for every threaded fitting. Piping less than NPS 1 and all tubing shall be supported according to Table 6.2 and Clause 6.25.2.
AMENDED - Clause 6.25.2
Horizontal piping less than NPS 1 shall be supported every 4 ft (1.2 m), and all tubing shall be supported continuously with treated wood and planks when it is laid on the rooftop.
AMENDED - Section 7.2
Generators, compressors/pressure boosters, stationary engines, and turbines
AMENDED - Clause 7.32.4
Except where permitted by Clauses 4.13.2 and 7.32.5 to 7.32.7, a residential-type range shall have the following minimum clearances from combustible material:
(a) above — 30 in (750 mm); and
(b) back and sides — 6 in (150 mm).
AMENDED - Section 7.33
7.33 Refrigerators
AMENDED - Clause 7.33.2
A refrigerator installed in a dwelling unit shall be of the direct-vent type.
AMENDED - Clause 8.4.1
Ventilation of the space occupied by an appliance or equipment shall be provided by an opening for ventilation air at the highest practicable point communicating with the outdoors, and this opening shall not terminate within 12 in (300 mm) of any combustion air opening. The total cross-sectional area of such an opening shall be at least 10% of the area required in Clauses 8.4.2 and 8.4.3, but in no case shall the cross-sectional area be less than 10 in2 (6500 mm2).
AMENDED - Table 8.5
AMENDED - Clause 8.10.6
An appliance that operates at a positive pressure shall
(a) not be connected to a venting system serving any other appliance; and
(b) only be connected to a venting system certified for positive pressure venting.
AMENDED - Clause 8.14.13
The vent from one or more gas-fired appliances may be installed vertically inside a dormant masonry flue, a dormant certified chimney, or a dormant vent, provided that
(a) each appliance is equipped with its own individual vent installed in accordance with the requirements of Clauses 8.12 to 8.14, as applicable; and
(b) spacers are installed to maintain a minimum clearance of 1 in (25 mm) between an active vent and a combustible vent.
The space surrounding any vent shall not be used to convey flue gases for any other appliance.
AMENDED - Clause 8.17.1
When the installation of a vent used in a natural-draft venting system is impracticable inside a building, it may be done outdoors, provided that the vent is
(a) certified for outside installation; and
(b) installed in accordance with the vent manufacturer's certified installation instructions.
AMENDED - Clause 8.18.7
A vent connector that serves two or more appliances, or a vent connector that serves a single appliance with two or more flue outlets, shall
(a) have
(i) an area not less than the total area of all vent connectors, with the size of each individual vent connector determined separately in accordance with Clause 8.18.5; and
(ii) a total length not exceeding the values specified in Table C.9. The total length of the connector in Table C.9 shall include manifold length and each individual appliance length; or
(b) be sized in accordance with an engineering table acceptable to the authority having jurisdiction.
AMENDED - Table C.1, Table C.2, Table C.4, Table C.5, Table C.6, Table C.7 & Table C.8
Added 25' sections to vent tables.
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FS-200-12-R2 - Clauses Amended;
AMENDED - Section 1.2
Section 1.2 is amended by adding to it the following sub-clause: (m) propane used as refrigerant.
AMENDED - Section 2
Section 2 is amended by adding the CAN/CSA-6.19-01 Residential Carbon Monoxide Alarming Devices.
AMENDED - Section 3
Section 3 is amended by revoking the definitions of "Appliance" and "Approved" and replacing the definitions with the definitions provided in Ontario Regulation 212/01 (Gaseous Fuels).
"appliance" means a device that consumes or is intended to consume a gas and includes all valves, fittings, controls and components attached or to be attached to it;
"approved" means,
(a) with respect to a standard or a laboratory test report, that it is listed in "Titles of Standards and Laboratory Test Reports Authorized in the Province of Ontario under the Ontario Gas Utilization Code" as published by the designated administrative authority from time to time,
(b) with respect to an appliance, equipment, a component or an accessory, that it bears the label or symbol of a designated testing organization or a label or symbol authorized by the director certifying that it complies with an approved standard or a laboratory test report, or
(c) with respect to an installation or work, that it complies with this Regulation;
Section 3 is amended by revoking the definition of "Authority having jurisdiction" and replacing it as follows:
Authority having jurisdiction: means the Director designated for the purposes of the Act.
Section 3 is amended by revoking the definition of "boiler" and replacing it as follows:
Boiler — an appliance intended to supply hot liquid or vapour for space-heating, processing, or power purposes and does not include appliances certified as water heaters.
AMENDED - Clause 4.2.3
The approval of the assembly or construction of an appliance is subject to the authority having jurisdiction and shall comply with Section 2 of this Code Adoption Document.
AMENDED - Clause 4.5.5
An appliance that has been exposed to fire, explosion, flood, or other damage shall not be offered for sale, installed, re-activated or reconnected to the supply, without:
(a) approval of the authority having jurisdiction; or
(b) inspection and confirmation by a Gas Technician I or II (as appropriate for the appliance input rating) that it is fit for continued use.
AMENDED - Clause 4.7.3
All interior metal gas piping that may become energized shall be made electrically continuous and shall be bonded in accordance with the requirements mandated by the Electrical Safety Authority.
Note: Refer to ESA Bulletin 10-14-2 and subsequent amendments
Download ESA Bulletin 10-14-2 - Here (http://www.hvactechgroup.com/files/Bonding.pdf) (*ESA Bulletin 10-14-2 has been replaced with ESA Bulletin 10-14-6 - Here (http://www.hvactechgroup.com/files/ESA%20Bulletin%2010-14-6.pdf))
AMENDED - Clause 5.1.5
Any installation requiring pressures in excess of those specified in Table 5.1 shall be approved by the Director.
AMENDED - Clause 5.5.9 / Table 5.2
Clause 5.5.9 is amended by adding a new column in Table 5.2 to read:
"The discharge clearances from relief device openings with capacities under 50 cf/h (15 m3/h) will be 1 ft. (.3 m) to a building opening, appliance vent outlet, appliance air intake or source of ignition, and 3 ft. (1 m) to a mechanical air intake".
AMENDED - Clause 6.22.2
6.22.2 Before appliances are connected to a new piping and tubing system containing fittings or joints, a pressure test shall be applied using either air or an inert gas (e.g. nitrogen) in the following manner:
(a) Appliance shut-off valves, meters, regulators and any component not rated for the test pressure being applied, shall not be connected to the piping or tubing system under test.
(b) The test pressure shall be measured by either a pressure gauge or equivalent device and, if a gauge is used, the minimum diameter shall be 3 in (75 mm) and the maximum range shall exceed the test pressure by at least 15% but not more than 300%. The pressure gauge or equivalent device shall be calibrated to read in increments of not more than either 2 psig (14 kPa) or 2% of the maximum dial reading of the pressure gauge, whichever is less.
(c) A pressure recorder when used for this test shall have a maximum range and be calibrated to the requirements of sub-section (b).
(d) The pressure and duration of the test shall be in accordance with Table 6.3.
Changed carbon dioxide to nitrogen for pressure test.
AMENDED - Clause 6.22.3
After an appliance(s) is connected, the new system shall be tested in the following manner:
(a) Before turning on the gas for the test, a check shall be made to ensure that any opening from which gas can escape is closed.
(b) Immediately after allowing the gas into the piping or tubing system, a test shall be made to determine that no gas is escaping by carefully watching the lowest volume test dial of the meter
(c) Where a meter is not provided, a working pressure isolated system (supply shut off) test shall be completed and the pressure shall be measured with either a pressure gauge or equivalent device calibrated to read in increments not greater than those specified in Clause 6.22.2(b), with the following exceptions:
(i) for a system where the working pressure is 0.5 psig (3.5 kPa) or less, the pressure gauge or equivalent device (e.g. a manometer) shall be calibrated to read in increments of not greater than 1 in w.c. (250 Pa); and
(ii) for a system where the working pressure exceeds 0.5 psig (3.5 kPa) but does not exceed 5 psig (35 kPa), the pressure gauge or equivalent device shall be calibrated to read in increments of not greater than 2 in w.c. of pressure (0.5 kPa); and
(iii) For this test the gas supply shall be shut off and the contained gas pressure shall be monitored for leakage indicated by a pressure drop.
(d) The test described in subsections (b) and (c) shall be of a 10 minute duration.
(e) Each appliance connection, valve, valve train, and system component shall be checked while under normal operating pressure with either a liquid solution or a leak-detection device to locate any source of a leak.
Removed manometer from 6.22.3(b). – Dial test only on activation. Added 6.22.3(c) to 6.22.3(d). – Test duration is 10 minutes.
AMENDED - Clause 7.1.6
Except as permitted under clauses 7.1.7 and 7.1.8 every automatically fired hot-water heating boiler shall be equipped with a low-water cut-off device to shut off the fuel supply in the event of low water when,
(a) the input to the boiler is in excess of 120 kW (400,000 Btuh); or
(b) portions of the circulating system are located below the boiler's lowest safe permissible water level regardless of the input, and the sensing element of the device shall be located above the lowest safe permissible water level established by the boiler manufacturer.
AMENDED - Clause 7.18.2
A construction heater shall be installed in accordance with the manufacturer's certified installation instructions.
AMENDED - Clause 7.18.10
7.18.10 A torch intended for manual operation shall not be left unattended while in operation.
AMENDED - Clause 7.26.1
A water heater, unless of the direct-vent type, shall not be installed in a bathroom, bedroom, or any enclosure where sleeping accommodation is provided.
A power vent water heater may be installed in an enclosure adjacent to a bedroom or bathroom provided adequate combustion air per clause 8.2.6 is provided to the enclosure. THis combustion air supply shall not be supplied from the bedroom or bathroom.
A natural draft water heater may be installed in an enclosure that is accessed by a pedestrian door which can be opened from a bathroom or bedroom, provided that the enclosure has a volume equal to or greater than the bathroom or bedroom.
AMENDED - Clause 7.26.7
Except for direct-vent water heaters, when the water heater is used in a combo heating system, return-air inlets shall not be installed in the same enclosure that contains both an air handling unit and the water heater. Adequate combustion air shall be provided for the water heater.
Also see the other B149.1-10 Gas Codes regarding return air.
(4.16.4) Where a forced air appliance for heating of the attached residential building is installed in a residential garage, no opening shall be located in the portion of the appliance return air system located within the garage and the return air system shall be made air tight to prevent the infiltration of air from inside the garage.
(4.17.1) Return air ducts installed in an enclosure shall be in accordance with the provisions set out for duct systems in the National Building Code of Canada.
(7.13.3) Return-air inlets shall not be installed in an enclosure or crawl space that provides combustion air to a furnace.
(7.26.8) When the return air duct(s) of an air handling unit in a combo heating system is installed in an enclosure in which any spillage-susceptible appliances are located, it shall be sealed to the air handling unit casing, and joints in the ducting shall be sealed to prevent infiltration of air from the enclosure into the return-air ducting.
***The following is from the Ontario Building Code regarding return air.***
6.2.3.20. Return-Air System
(1) The return-air system shall be designed to handle the entire air supply.
(2) Where any part of a return duct will be exposed to radiation from the furnace heat exchanger or other radiating part within the furnace, such part of a return duct directly above or within 600 mm of the outside furnace casing shall be noncombustible.
(3) Return ducts serving solid fuel-fired furnaces shall be constructed of noncombustible material.
(4) Where combustible return ducts are permitted, they shall be lined with noncombustible material below floor registers, at the bottom of vertical ducts and under furnaces having a bottom return.
(5) The return-air system shall be designed so that the negative pressure from the circulating fan cannot affect the furnace combustion air supply nor draw combustion products from joints or openings in the furnace or flue pipe.
(6) Return-air inlets shall not be installed in an enclosed room or crawl space that provides combustion air to a fuel-fired appliance.
6.2.4.7. Return-Air System
(1) The return-air system shall be designed to handle the entire air supply.
(2) Except as provided in Sentences (3) and (4), return ducts shall be constructed of material
having a surface flame-spread rating of not more than 150.
(3) Where any part of a return duct will be exposed to radiation from the furnace heat exchanger or other radiating part within the furnace, such part of a return duct directly above or within 600 mm of the outside furnace casing shall be noncombustible.
(4) Return ducts serving solid fuel-fired furnaces shall be constructed of noncombustible material.
(5) Combustible return ducts shall be lined with noncombustible material below floor registers, at the bottom of vertical ducts and under furnaces having a bottom return.
(6) Spaces between studs and joists used as return ducts shall be separated from the unused portions of such spaces by tight-fitting metal stops or wood blocking.
(7) A vertical return duct shall have openings to return air on not more than 1 floor.
(8) A public corridor shall comply with Sentences 6.2.3.9.(4) and (5).
(9) The return-air system shall be designed so that the negative pressure from the circulating fan cannot affect the furnace combustion air supply nor draw combustion products from joints or openings in the furnace or flue pipe.
(10) Return-air from a dwelling unit shall not be recirculated to any other dwelling unit.
(11) Except for floor levels that are less than 900 mm above or below an adjacent floor level that is provided with a return-air inlet, at least one return-air inlet shall be provided in each floor level in a dwelling unit.
(12) Provision shall be made for the return of air from all rooms by leaving gaps beneath doors, using louvred doors or installing return duct inlets.
(13) Return-air inlets shall not be installed in an enclosed room or crawl space that provides combustion air to a furnace.
AMENDED - Clause 8.12.2
Except as provided in Clause 8.21.6, before replacing an existing appliance or connecting a vent connector to a chimney, the chimney flue shall be examined to ascertain that the chimney:
(a) is properly constructed;
(b) is lined with a tile or metal liner;
i. if installation of a liner is required it shall be completed within 5 days for residential applications and 30 days for commercial application of replacing the existing appliance
ii. a tile liner is not acceptable for an exterior chimney it shall be relined with a certified metal liner.
(c) is clear and free of soot, creosote, or obstructions;
(d) will effectively conduct the products of combustion outdoors; and
(e) is sized in accordance with Clause 8.13.
AMENDED - Clause 8.13.1
A vent or a chimney serving a single appliance shall provide effective venting and shall be sized
(a) for a single appliance with draft hood the effective area of the vent connector and chimey flue is not less than the area of draft hood outlet, or greater than seven times the draft hood outlet area.
(b) in accordance with good engineering practice, such as by the use of
(i) Table C.1, C.2, C.5, or C.6 of Annex C for a draft-hood-equipped or a fan-assisted Category I appliance; or
(ii) engineered venting tables acceptable to the authority having jurisdiction.
AMENDED - Clause 8.13.2
A vent or a chimney serving more than one appliance shall provide effective venting and shall be sized;
(a) for two appliances with draft hoods the effective chimney flue area is not less than that of the largest draft hood outlet plus 50% of the smaller draft hood outlet area, or greater than seven times the smaller draft hood outlet area
(b) in accordance with good engineering practice, such as by the use of
(i) Table C.3, C.4, C.7, or C.8 of Annex C for a draft-hood-equipped or a fan assisted Category I appliance, or
(ii) engineering methods acceptable to the authority having jurisdiction.
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