5
CANADIAN CODES
•
The information on this page applies specifically to installations in Canada.
INSTALLATION CODES
•
These infrared heaters are CSA International Design Certified and manufactured for either indoor or outdoor installation
in compliance with the Standard for Gas-Fired Low-Intensity Infrared Heaters CSA 2.34-latest edition. If you have any
questions call factory before attempting installation. These heaters are certified for unvented or vented use.
•
The installation must conform with local building codes or, in the absence of local codes, with the current Canadian
Natural Gas and Propane Installation Code, CAN/CSA B149.1. Canadian authorities having jurisdiction should be
consulted, before installations are made, to verify applicable local codes and installation procedures.
•
An infrared heater shall be protected against physical damage.
•
An unvented infrared heater shall not be installed in any location where a flammable vapour, combustible dust or fibres,
or an explosive mixture is present.
•
An unvented infrared heater shall not be installed in a residential or care or detention occupancy building.
•
An unvented infrared heater shall be provided with mechanical ventilation for combustion and ventilation air
(1) that is so located that products of combustion from each heater are effectively removed outdoors;
(2) that has a ventilation volume of at least [3 CFM per 1000 BTUH] 300 cfm
(142 dm
3
/s)
for each 100 000 Btuh
(30 kW)
input or fraction there of; and
(3) is sufficient to maintain the level of carbon dioxide at less than 5000 ppm measured 6 ft
(2m)
above the work
area.
•
An unvented heater shall have the ventilation system so interlocked that any reduction of the volume of airflow required
in the above note for a heater or group of heaters will cause the shutdown of that heater or group of heaters.
•
An unvented infrared heater shall not be installed in an exit passageway or stairway within 8 ft
(2.5 m)
measured
horizontally from an exit door.
•
An infrared heater shall be provided with clearance from combustible materials as certified and indicated on the heater.
•
A vented infrared heater shall be installed in accordance with the certified markings and the manufacturer’s certified
installation instructions.
•
A tube-type infrared heater shall only be connected with a Type I hose connector that is (1) certified as being in
compliance with CSA Standard CAN/CGA-8.1; and (2) of a length of 36 +/- 6 in
(90 +/- 15 cm)
.
•
If an external electrical source is utilized, the heater, when installed, must be electrically grounded in accordance with
the current Canadian Electric Code, CAN/CSA C22.1.
•
The electrical connection shall comply with the local codes or, in the absence of local codes, with the current Canadian
Electrical Code, CAN/CSA C22.1, Part I and Part II, and Electrical Features of Fuel Burning Equipment, CAN/CSA
C22.2 No. 3.
•
Vent terminal clearances shall be in accordance with the current Canadian Natural Gas and Propane Installation Code,
CAN/CSA B149.1. A horizontal vent shall not terminate less than 6 feet
(1.8 m)
from a combustion air inlet or another
appliance, 3 feet
(900 mm)
from any other building opening or any gas service regulator, or 7 feet
(2.1 m)
above grade
and shall not terminate directly above a gas utility meter or gas service regulator.
•
Manual shut-off valves shall be used as specified in the current Canadian Natural Gas and Propane Installation Code,
CAN/CSA B149.1. A manual shut-off valve shall be of the plug, ball, or eccentric type and it shall not be subjected to
either a temperature or a pressure greater than its certified rating. A readily accessible manual shut-off valve shall be
installed to control the supply of gas to each appliance and the valve shall be located, in either the drop or riser, as
close as possible to the valve train of a commercial and industrial type appliance.
AIRCRAFT HANGARS
•
These overhead heaters are suitable for use in aircraft hangars when installed in accordance with the current Canadian
Natural Gas and Propane Installation Code, CAN/CSA B149.1.
•
A heater located in an aircraft storage or servicing area shall be installed so that no portion of an aircraft that can
occupy the area that is within the clearance to combustible material, as marked on the heater rating plate.
•
When an infrared heater is installed in either a repair or shop area that communicates with an aircraft hangar, the
minimum clearance from the floor to the infrared heater shall be 8 ft
(2.4m)
.
•
An infrared heater shall not be located in an area of an aircraft hangar where it can be subjected to physical damage by
aircraft, cranes, movable scaffolding, or other objects.
GARAGES
•
These overhead heaters are suitable for use in garages when installed in accordance with the current Canadian
Natural Gas and Propane Installation Code, CAN/CSA B149.1.
•
The minimum clearance from the radiant face of the infrared heater to the upper surface of the highest vehicle shall not
be less than the certified clearance from combustible material as indicated on the heater [installed in a garage or a car
wash]. Provision shall be made to maintain these minimum specified clearances by an interlock that shuts off the gas
supply until the required clearances have been re-established, a protective bar, or a device that provides a warning
when the clearances are not being maintained.
•
Where an infrared heater is installed in a garage and the clearance from combustible material cannot be maintained
when the vehicle is raised on a hoist, an electrical interlock shall be provided to shut off the burner and prevent its
operation until the required clearance has been re-established.
WARNING
•
An overhead heater should be installed so that the minimum clearances marked on the heater will be
maintained from vehicles parked below the heater. (CSA 2.34, section 1.26.3.d.)
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