I've been using a MSR Pocket Rocket Deluxe; the Deluxe version is regulated which helps in cold weather. I also added a copper strip (well documented on the intraweb) that has further extended the conditions I can use a canister stove. The small ccd pad (fraction of an ounce) seems to help as well.
My buddy just sent me this he came up with that should do even better than the single strip of copper; he's going to send me one
My buddy just sent me this he came up with that should do even better than the single strip of copper; he's going to send me one