What are the temps like inside your house now? As long as the power doesnt go out for an unreasonable amount of time .. you should be ok depending on the temp inside and outside your house. I would be more concerned in the dead of winter than in the summer, but then again .. you further north than me. As for suggestions .. you could get him out and hold him close to you to get your body warmth if you are concerned. I've never really dealt with a prolonged power outage that concerned me for my reptiles. I would think you could use those hand warmer things. You would have to get a couple and make sure you bp couldnt snuggle up in direct contact with them .. through a towel or something. Any body else have any ideas or dealt with this?