CLEANEST BURNING STOVE IN THE WORLD Winner of three prestigious industry Vesta Awards: The Green Award (for demonstrating outstanding innovation with respect to energy conservation and environmental impact), 2011 Best New Wood Stove, 2011 Best-in-Show Heating Capacity: 2,500 sq ft Burn Time: 12 hours Log Size: 24" Firebox Size: 3 cubic feet Emissions: 0.45 grams/hour Efficiency: 80.5% Construction: Cast Iron