First, let me say that I am NOT considering doing this. But I am curious about it. Since gasoline has a lower flash point than fuel oil (which is essentially diesel fuel) and it burns hotter than fuel oil, what would happen if gasoline was substituted for fuel oil in an oil fired furnace/boiler?
Any furnace experts out there have an idea about this? Again, I'm not going to do this. It's just an idle curiousity question.