Re: Difference between alcohol & kerosene stove?
We lived with a pressurized alcohol stove (similar in principle to kerosene - ie preheat/light/use) for 10 years or so. Finally switched to Propane and never looked back. Used with common sense, a good appliance and good practice it's quite safe. Aside from ease of lighting and faster cooking, the fumes and high cost of the proper fuel was a major PITA with the pressure alcohol.
We've sailed with friends who use the wick type alcohol stove like Gary posted above, they are a much better idea, but still slower than propane and somewhat less convenient. However they do lack the power draw that a proper solenoid-equipped propane system has.
But we'd never go back to a pressurized system that required pre heating etc like kero or alcohol.
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
1984 Fast/Nicholson 345 "FastForward"