With a child on continuous o2, how far is a safe distance from gas stovetop? (o2 to trach via hme)

10-15 feet? There is not a standard rule regarding home oxygen use. Some resources state that 5 feet is the closest one should get to a spark or flame. There are reports that fires have occurred with the oxygen 10 feet away from the flame, so keeping 10-15 feet away sounds like a safe distance. If the tank or valve springs a leak of pressurized oxygen, anything can happen, such as a huge explosion.