and yet another reason I am obsessing over this bathroom remodel. Currently the shower I won't use is in an alcove with no door so as soon as the water is turned off, this blast of cold air rushes in. Neeeeeed a door to trap the warm and need a tub to help with some of the stiffness in my joints.Actually I'm trying to time it so that when the furnace kicks on,in the shower I go.
Kinda the same as your idea....