Its a pain in the ass...
Happened to me two years in a row...Irene, then Sandy... I live 30 miles from NYC, in one of the most densely populated suburbs.... And was without power for almost 30 days in less than a 12 month period.... The power company here sucks balls...
Irene:
The water level was about a foot higher than in the pic...For Sandy the whole boiler was submerged... Water was to the bottom of the floor joists....
I still have the same boiler core, after all its a lump of cast iron that weighs around 600#... The jacket, insulation, all refractory replaced, all new controls....
Flood insurance would not help...