Hello,
We have found that crate training to be very constructive to keeping a puppy safe and quiet. It provides a comfort to the pup. We continued to crate after they have grown up if they display destructive behavior.
We also use Nimble Pet Safety. It is a Verizon product that uses cellular to report temperature and power issues. You can set alarms that text your phone if temps get too high or power goes out. Subscription is $120.00 per year or you can do less and pay as you go.