So what is the best way of lighting charcoal? Is there problem with using denatured alcohol?
Denatured alcohol might work and won't produce toxic fumes, but it's probably not going to burn long enough on its own. Best to soak a paper towel or clean rag in it so it would act as a wick. It's also extremely dangerous and may burn with an almost invisible flame in bright sunlight, so keep that little guy in your profile picture safely out of the area.
I'd skip the denatured alcohol and get a $10 charcoal chimney, which is in my opinion the best method of starting charcoal.
Harbor freight sells a 1100 watt heat gun for $14.99 ,with frt. under $20.00 .Best way to light charcoal .Fire in 30 seconds .No fuss . Look on you tube .There are videos of people using heat guns to light coals .Oh yeah forget that $80 thing that is just a glorified heat gun .Cheap every day 1100 watts and you got fire pronto.