How to keep my rabbit warm?

rabbits can survive those temps as long as you keep there water unfrozen. rabbit fur is 6 times warmer than lambs wool. a heating pad is more than enough to keep her toasty, but if you are really concerned you can set up a space heater or a ceramic heating bulb above her hutch (like they use for reptiles). rabbits produce a lot of body heat so they can keep them selves warm even in really cold weather. is he huddling in the corner? that is how the concerve body heat, they will squish them selves into a little ball and sit there.