My thoughts for today!
Freezing cold, even the house feels drafty and do not press your back up against the wall tonight, might get a darn good chill! I took another look at my big pond babies tonight with flashlight after checking out the greenhouse. All is well and ponds are still flowing as they always do, from pond to pond. That is my first and foremost concern, to keep the pumps running even if it is minus 45 and colder!
I should note that my pond heater is on a total different circuit. I would never want them both on the same circuit, just in case, cause the 1500 watt heater draws much electric power and if the circuit would trip, then at least the pumps are still flowing, and that would keep the ice at bay till I wake up, should I fall asleep on the coldest of nights and should a circuit trip. Should the power go out, I have generators to keep pond going, and special heaters for house as well. Thankfully the power does not go out very often in the winter and when it did, the longest was about 5 hours and everything was fine once the power did come back on that time.