True, that, three at a minimum.
@Smokin Joe I don't know about three,but the regular heat source and a backup cast iron stove or propane heater at a minimum,as well as very warm clothes.
I hesitate to suggest one room be super-insulated due to the fact some idiots will take it too far and not have a working exhaust system to rid the room of stale air. We all know what happens if there is no system in place to allow fresh air into the room. Granted,it's not much of a problem because most houses are not that air-tight,but it COULD be a problem if someone that doesn't know what they are doing basically seals one room off from the rest of the house,and doesn't allow for fresh air circulation.
If you live in a house with a fireplace and a garage or an outbuilding,it should be easy to just stockpile split wood where it is dry and readily available to feed your fireplace or mo betta,cast iron stove. You could concentrate on heating that one area of the house,and just crawl under plenty of covers when you go to bed,or bed down in a sleeping bag.
Apartment dwellers are screwed,though. About all they can do is get into their cars and drive someplace warm and look for a job.
Make no mistake about it,though. This WAS an act of terrorism,and innocent people will die because of it.
There should be appropriate consequences.
BTW,I haven't heard if they have any suspects or any arrests have been made yet. Are the authorities even looking?