I don't have nearly as large a collection as you so when there was a winter storm and we were pretty sure we would get a blackout I read somewhere that putting your snake in a separate box and putting those hand warmer packets like you'd use when you ski in with it it'll keep the temp fine. The power never went out so I never had to try that and not even 100% sure that that's an ok thing to try so I'd be interested in what other people do