I am ordering replacement windows. I'm going to go with double-hung in the bedrooms and bathroom, and casement above the kitchen sink. Double-hung vinyl with added foam insulation in the frames.
But in the bathroom I want the best protection from heat loss I can possibly get, because the toilet is inches away from the window and that's not a place one wants to feel chilly.
Would going up to triple pane in that location help? Is there anything else that would help, in terms of either the order of the custom window, or the installation method, or anything else you can think of? I am in upstate NY.