U1500 By Regency Features: Clean contemporary lines Ceramic burner with glowing linear ember-bed and logs Electronic Ignition Natural Gas or Propane Specifications: Maximum BTU 43,000 42,000 Turn Down BTU 29,000 33,500 Efficiency 73.72% 74.67% EnerGuide Rating 67.46% 69.64% View Area 611 sq.in. Room Size Extra Large Vent Type Direct Vent Vent Size (Air Intake) 8" Vent Size (Exhaust) 5" script-header-text: script-footer-text: Price: $0.00 Updating cart...