I have a room in my pole barn that I am building for my man cave. It is 14 x
- I have R19 insulation in the walls and R38 in the floor and ceilings. It is on the second floor and the ceiling is about 7' tall. I am located in central Ohio. How would I figure out what size heater I need to make it relatively comfortable to work in when it is cold out. Near as I can figure I need about 14,000 BTU, do you think this is correct? Thanks,