What precautions should a plumber take when using a blowtorch in a cupboard or enclosed space?
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A
Remove all combustibles, use a heat-resistant shield, have a fire extinguisher to hand, and allow 60-minute fire watch after
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B
Use a lower-temperature torch setting only
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C
Open a window in the nearest room for ventilation
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D
A blowtorch should never be used in enclosed spaces under any circumstances