gasoline has a very low flash point that's is why its so dangerous -40 degrees and burn's only close to 850 degrees, natural gas will burn close to 1000 degree's, to get the heat range to completely start the cremation process you got to have atleast 1400 degrees nothing lower will do it..you need anywhere from above 1400 degress up to 1800 degress i say about 1600 degress be about the temp. you would try to stay at..and even at that temp. you talking about a 21/2 to 3 hour's burn time...to get this high temp and burn time you got to have a very controled environment with 2 or more compressed controled gasses working together to get the heat, time, and area to burn, to cremation of a human body. finding all these element's together inside a home is a very long shot...and for more than 1 person cremated that's close to impossible.. in all my year's as a vol. fire fighter i never seen a home fire where you can't find a part's of a body for each person missing in that house hold. My training yes i think i could do it but not with 1940's technology. it would be today's technology and i sure wouldn't put how i do it on internet or tell anybody unless they are a fire marshall or a arson detective and i still don't think i could get rid of all them kid's in the time frame without getting cought red handed .. you more than welcome to try your theory's but i can't see how it's possible not with the heat source, wide coverage area myself i don't think you can get even close to the heat needed to do the job.