Metal Buildings, best company to use, also wood construction ?s

I was going to hook it up to a coal stove and just recirculate it. I think the tubing was around 300 for just the tubing. Here if you are not well insulated it stinks. I really need to rent a high lift and put some of that silver roll type insulation on the bottom of the ceiling to reflect the heat back in. Money is getting tight here, should have done it at first.