Thanks all.
I've got them sitting in the family room so heat isn't an issue. It isn't 80F but mid 70's seems to be working OK.
I found a couple of them with aphids this morning. Talk about a pain in the butt. I've sprayed each one on the top, sides, bottom and any place else I could get the spray in. I'll go back and do it again in a few days.
The aphids came from a couple of overwintering plants I have in another room. I've been able to contain them on those plants but they're impossible to wipe out. I need some ladybugs. Come on spring!
I'm using a combination of insecticidal soap and botanical pyrethrins to do the job, wish me luck.