Hi everyone. Looking to purchase a small or medium vented gas insert. Based on my firplace dimesions:front width = 31 1/2", rear width = 23.5" ht = 28.5", and depth = 17&1/4" and the clean contemporary look I want I've narrowed my choices to: Regency U32, Heat n Glo Cosmo I-30, or Napoleon IR3G (unit not on display). I know I want blower unit with these, but not sure what is the better unit? Should I have a screen on glass or not (have 4 footed babies)? This would be supplemental heat (1400 sq. ft.) Any thoughts, feedback or comments are greatly appreciated. Thank - you in advance!