Hi Don,
I'm curious
Never having had to deal with that sort of cold on a continuous basis
Besides the frig - how are the other electrical/appliances doing?
Do you leave the computer in the cold?
How about the TV?
Plastic and vinyl get very brittle - have you had problems with breakage?
The sinks, faucets, toilet, etc
I assume you have a block heater for the engine and a transmission heater, how about a differential heater?
Did you change the oils to very low viscosity as on 0w-5 or similar?
-5F outside here right now
While I'm sitting in nice warn wood heated house
KJ