Hi I am just wondering if anyone has experience with a wood fired boiler for infloor heat in a shop. I am looking at one of the stand alone outdoor units that looks like a small shed. How well do they work ? I live in southern Alberta and my shop has sixteen foot high walls. Insulation is R-28 walls, R-40 cieling. I built on a ICF frostwall and insulated under my slab with cutouts from a door factory. Please fell free to chime in with any advice-thoughts. Thanks,mike.