Lightest /smallest stove for extreme cold?

[Macintosh]

Havent found a lot on this. I have a pretty light stove for backpacking that all packs into a small pot so it also takes up very little room, but it uses the butane cartridges which Ive had a few issues in very cold wx. What are the smallest-packing and lightest stove and fuel options that work well when soaked in very cold temps? (0f or below)