Not recommended. An overheated tool may not drive fasteners completely or may result in erratic operation. For optimal performance of the tool, use in a cool and well ventilated environment. Keep the tool and fuel out of direct sunlight and in surroundings where temperatures will not exceed 120°F (49°C). After extended periods of normal continuous use, it may be necessary to cool the tool by setting it aside for 10 to 15 minutes or until the tool operates normally again.