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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 and potentially life threatening.
2
2
• Do not use in unventilated areas
• Know the signs of CO and CO
○ Headaches, stinging eyes
○ Dizziness, disorientation
○ Difficulty breathing, feels 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
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, CO2 and NO2 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
USA 8-Hr Time weighted average
(OSHA 29 CFR 1926.55 App A)
CO
CO
2
NO
2
USA - Ceiling Limit
(Short Term Exposure Limit = 15 minutes)
CO
CO
2
NO
2
• 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.
Item 59567
WARNING
Air Quality Hazard
poisoning
2
Canada 8-hr time weighted average
WorkSafe BC OHS Guidelines Part 5.1
and Ontario Workplaces Reg 833
50 ppm
25 ppm
5000 ppm
5000 ppm
3 ppm (Reg 833)
Canada STEL (15 minutes Reg 833/1 hour WSBC)
WorkSafe BC OHS Guidelines Part 5.1
and Ontario Workplaces Reg 833
100 ppm
15000 ppm (WSBC)
30000 ppm (Reg 833)
5 ppm
1.0 ppm (WorkSafeBC)
5.0 ppm (Reg 833)
SAVE THESE INSTRUCTIONS.
For technical questions, please call 1-888-866-5797.
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