I am in the process of trying to choose a high efficiency, wood burning, zero clearance fireplace, and would appreciate any advice, suggestions and opinions on which brands/models might be the best and which, if any, should be avoided. I already know that I need a large unit, and have been considering such numbers as the Quadra-Fire 7100, Lennox Montecito Estate, Fireplace Xtrordinair 44, Napoleon NZ6000, Vermont Castings Sequoia EWF36, RSF Delta, etc. Any thoughts, good or bad, on these or some other fireplace that should be considered?