Lowe's is having it's annual clearance sale on all of it's heaters. Most of their stuff is 50% off. I just picked up an indoor rated 10K BTU radiant kerosene heater for fifty bucks. It's normally $109. Kerosene Propane electric Vent Free Gas
Changed my mind. I took it back and got a $140 convection kerosene heater for $60 instead. Yeah I know. It's the middle of January and it's supposed to be 60 tomorrow plus I've got a truckload of firewood in the garage, but you never can be too prepared.