Just started shopping for a wood burning insert for my open fireplace. Have looked at Napoleon,Regency,Jotul and others. Also looked at Supreme. A completely stainless steel unit. No firebrick in the combustion chamber. Very good numbers for EPA,BTU,Burntime,and area heated.It also has a nice flush design and a large glass door(which my wife likes). Since the rest of the industry uses firebrick in the combustion chamber and this one is all stainless steel, I am a little leary. I have searched high and low on the net for comparisons and reviews with no success. If anyone can enlighten me as to pros and cons of this design as compared to firebrick I would really appreciate it. Thank You