Haven't you heard of Global Warming? Just preparing for the next ice age!
Good to know about the electric cooling water pump. I was not aware of that detail. I've heard of electric fans turning off after shutdown, but if it is circulating the water, that should work nicely.
Extreme cold temps for me is like 68 deg F. I almost can't get in my pool on those days. My pool temp has been around 87deg this summer.
Just was wondering what if anything is in the manuals on this subject.