I have used KEROSENE heaters for over 20 years without a problem. It
is important to remember a few rules: 1) Keep the heater in good
operating condition 2) Replace the wick every year 3) Use only high
grade kerosene 4) Store only kerosene in your kerosene container -
gasoline is highly flammable and you do not want ANY gasoline to make
its way into your heater. Do not store kerosene near an ignition
source (e.g., gas water heater). 5) Do not operate the heater too
close to flammable items (e.g., furniture, curtains, etc.). Your
owner's manual will tell you what the minimum distance to flammables
is. 6) Do not operate the heater in an airtight space. Crack a window
or door to allow fresh air in. 7) Do not leave the heater operating
unattended and especially do not go to sleep with the heater operating
in the same room (for obvious reasons). 8) Do not move or refuel the
heater while it is operating.