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Contact a qualified electrician to replace loose or worn outlet. 17. The output of this heater may vary and its temperature may become intense enough to burn exposed skin. Use of this heater is not recommended for persons with reduced sensitivity to heat or an inability to react to avoid burns. 18. “SAVE THESE OPERATING INSTRUCTIONS CAUTION: This heater includes a Thermal Cut- Off Overheat Protection System that shuts the heater off if it overheats due to abnormal conditions. If this occurs, tur