Here is watt I have for power outtage
For my snake room I simply use this http://www.walmart.com/ip/14710768?a...l5=pla&veh=sem hooked to a 20lbs cylinder. It allows me to keep my snake room at proper ambient temp.
For the rest of the house I use this http://www.samsclub.com/sams/gentron...navAction=push and if my incubator is plugged I run a cord upstairs to the snake room so the incubator does not stay without power.