Well, I got the clothes into the gas clothes dryer and stepped into the tub and drew a bath. I really couldn't tell if the tub itself felt warmer because of my insulation job, (I think so) or if it was just my imagination. I had a nice hot bath. Meanwhile, the heat came on (also gas) and at that point, DH came and took his shower. He had plenty of hot water too.
I was quite pleased.