Hey again guys,
Lurking around the internet, I found a BTU calculator on this site.
BTU Calculator - Work out your heating BTU requirements with our BTU Calculator.
This thing is saying that I need 708,750 BTU/hr to heat my shop to 70° from an outside temp of 0°. I used 0° as a worst case scenario.
Feels like my ship just sunk.........
So now what ¿