Thanks for the links! The Air and water link is what i needed.
I'm most interested in the G73 or Dimplex CUHO5B31T because they are ceiling mountable but they are required to be hard wired, i need to be able to plug it into the same outlet as my welder (preferred) or the dryer outlet, I know i could make both heaters plugable, both of my plug outlets are 30 amp outlets and the heaters require 21, don't know how risky that would be... may have to call Dave!
