The Lopi Answer NexGen-Fyre Insert is a steel wood-burning fireplace insert intended to mount almost flush to an existing masonry or zero-clearance fireplace. It offers a large viewing area and a 1.5 cubic foot firebox that accepts logs up to 18 inches.

Key features and specifications:

• Firebox size: 1.5 cubic feet
• Maximum log length: up to 18″
• Heating capacity: up to 1,200 sq ft (may vary with insulation and layout)
• EPA tested emissions: 2.0 grams per hour (cord wood)
• EPA tested BTU range: 12,129 to 59,527 (cord wood)
• Maximum burn time: up to 8 hours
• Overall efficiency: up to 78% LHV / 72% HHV (B-415.1, cord wood)
• Glass viewing area: ceramic glass, 15-1/4″ W x 9-1/4″ H (135 sq in)
• Construction: 1/4″ to 3/16″ steel plate; weight approx. 285 lb
• Design highlights: five-sided convection chamber for even heat distribution and a single air control for straightforward burn regulation

Consult local codes and a qualified installer for venting and installation requirements.