Sounds like some sage advice from guys who have fished in the cold weather.
As for me, fishing up here in the north on Lk Michigan during the winter, I have
a canvas top with clear side windows attached to my walk-thru windshield, and
I can place my Buddy Heater in the walkway of the windshield, As for clothing
pretty much what the other guys said, layers of GOOD clothing.
Tight Lines - Dave