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• Do not use this heater for heating human living
quarters.
• Use of direct-fired heaters in the construction
environment can result in exposure to levels of CO,
CO
, And NO
considered to be hazardous to health
2
2
and potentially life threatening.
• Do not use in unventilated areas
• Know the signs of CO and CO
• Headaches, stinging eyes
• Dizziness, disorientation
• Difficulty breathing, feelings of being suffocated.
• Proper ventilation air exchange (OSHA 29 CFR
1926.57) to support combustion and maintain
acceptable air quality shall be provided in accordance
with OSHA 29 CFR Part 1926.154, ANSI A10.10
USA 8-Hr Time weighted average
(OSHA 29 CFR 1926.55 App A)
CO
50 ppm
CO
5000 ppm
2
NO
N/A
2
Canada 8-Hr Time weighted average WorkSafe BC OHS
Guidelines Part 5.1 and Ontario Workplaces Reg 833
CO
CO
2
NO
5 ppm
2
WARNING: Never leave the heater unattended while operating.
Disconnect the heater from its power source when not in use.
All manuals and user guides at all-guides.com
Air Quality Hazard
poisoning:
2
WARNING:
Safety Requirements for Temporary and Portable
Space Heating Devices and Equipment used in the
Construction Industry or the Natural Gas and Propane
Installation Codes CSA B149.1
• Periodically monitor levels of CO, CO
existing at the construction site - at the minimum
at the start of the shift and after 4 hours.
• Provide ventilation air exchange, either natural or
mechanical, as required to maintain acceptable
indoor air quality.
• Ensure that the flow of combustion and ventilation air
exchange cannot become obstructed.
• As the building "tightens up" during the construction
phases ventilation may need to be increased.
USA-Ceiling Limit
(Short Term Exposure Limit = 15 minutes)
CO
N/A
CO
N/A
2
NO
5 ppm
2
Canada STEL (15 minutes Reg 833/1
WorkSafe BC OHS
Workplace Reg 833
CO
100 ppm
CO
15000 ppm (WSBC)
2
30000 ppm (Reg 833)
NO
1.0 ppm (WSBC)
2
5.0 ppm (Reg 833)
-4-
, and NO
2
hour WSBC)
Guidelines Part 5.1 and Ontario
2
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