Why don't you turn on the lights and call the gas leak
In addition in the gas leak. Firefighters rescue, even the doors are not kick, can not use metal utensils or knock hit, to prevent sparks or detonate gas. So, is not to say that as long as the lights or call in gas leakage room will explode, but cannot do this purpose is just in case.
But these spark temperature is not low, once ignited in air gas, is caused by the explosion (do you have a light bulb will burst through, then not only spark may even produce arc, if such a thing happened, in a room filled with gas consequences as can be imagined)
Because the lights and telephones are likely to produce a spark of electricity in the moment, the spark is very small, usually we can not pay attention to, and even can not see
