Handsonautotech
Burning Hunk
Just a thought. I've had zero forced air heat vented in my basement in well over twenty years. Even in single digits and teens below zero for days or weeks I never burst a pipe. Uninsulated block foundation. Holds mid 50'sF all winter. Makes for cold showers however.
My basement is a walk out and located at 7,600 feet in the Rocky Mountains. Neighbors have lost pipes in the past. I plan to install electric baseboard in the basement set to 50F year round to be safe. I expect this may help with the girls room when done also. I have already started the process of insulating the basement. The area under our bedrooms is actually a crawl space. Under the living area and large front porch it turns into walkout basement. The house is cut into a hill.