Perhaps a stupid question but I was reading about petrol burners and that some NP'S in usa demand a valve. My stove has one, but I don't get it.
When I just tested it, I flipped the bottle to 'off' to kill the flame. It takes long, but 40 seconds or more, and with the flipping of the bottle if accidentally tipped the burner over, so that doesn't improve the situation.
When do you use this valve? (I've read the manual,but still)
Alex
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