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Linseed oil is safe for wood because you spread it out. but left on wadded up rags or paper, the oil is so concentrated, it heats up as it s van rates. some experts say take linseed oil-soaked rags and spread them out on your driveway until they are totally dry. want to be more cautious? get a metal can, fill it up with water, dump the rags in, and seal it up. it has been a little over three hours now, and suddenly, we see flames. ooh. reporter: remember, all with no outside spark. elisabeth leamy, abc news, washington. wow. i m shocked. some news you can use, that s for sure. exactly. no more linseed oil. you re done. it is also edible. it can be a nutritional supplement. ....
Two hours in, we spot smoke. linseed oil is safe for wood because you spread it out. but left on wadded up rags or paper, the oil is so concentrated that it heats up as it s evaporates. some experts say take linseed oil-soaked rags and spread them out on your driveway until they are totally dry. want to be even more cautious? get a metal can, fill it up with water, dump the rags in, and seal it up. it has been a little over three hours now, and suddenly, we see flames. ooh. reporter: and, remember, all with no outside spark. elisabeth leamy, abc news, washington. wow. i m shocked. some news you can use, that s for sure. exactly. no more linseed oil. you re done. it s also edible. ....
And his fellow washington, d.c. firefighters got trapped in. their only way out of the house, back through the flames. i did say to myself, you know, you can stay up here and try and put this fire out and probably die, or you can get out of here. reporter: they made it. but with devastating burns over much of their bodies. the official cause, according to the fire department, linseed oil. back at our experiment, it s been an hour. and we check the linseed-soaked rags with a thermal imageer. those glow in the dark spots are where the linseed oil is beginning to grow hot. obviously you re getting heat buildup. reporter: exposed to air it combines with oxygen molecules. this chemical reaction creates heat. if the linseed oil is on something like a cotton rag it can catch fire at a low as 120 degrees with no outside spark. ....