I bought a Mr Heater - little buddy and a few bottles. I will see how it works in the am. We are forecast for a high of 36 Saturday - I know it isn't cold for you all from the nort, but that's pretty damn cold here in November. Nothing will run me out of a stand like being cold. Packing to sit all day, and even just occasional use will help make the sit a little better. I have a funny feeling my hunting buddy will end up with one by the end of the weekend! I will have to look into larger cylinder and hose for more regular use. My shooting house is going to look like a meth lab!