Any type of heat whether it be wood gas or electric, comes with combustion "flash" hazards - it says so right on the UL label. The way I see it, a gas appliance that uses HSI (hot surface ignition) is more likely to flash on external combustibles then one that uses a pilot light. These HSI units are totally cold before they get a run command to heat the igniter, where a pilot requires more combustion air and will scavenge small amounts of vapor and "wick off" on smaller concentrations. A little phoomp is better then a big bang anyday.. Wood heat is probably better at scavenging flammable fumes before they reach the big-bang level of concentration then any of them. The trick is, is to not let concentration reach BANG LEVEL.
Do a good sniff around before you wick that stove!
Another thing too.. I still wonder how many of my brain cells got wasted to that old propane dish. Working on the hotrod used to be a GAS, litterally..