Mason-Lite 75" Standard Wood Burning or Gas Firebox Kit - MFP75

The Mason-Lite 75" Standard Wood Burning or Gas Firebox Kit (MFP75) is a premium large-scale masonry fireplace system designed to deliver the authentic look of a traditional fireplace with the efficiency and convenience of modern construction. Engineered using lightweight modular refractory concrete, this firebox kit offers superior durability, faster installation, and exceptional heat performance compared to traditional masonry builds.

Ideal for luxury indoor or outdoor living spaces, the MFP75 supports both wood-burning and gas applications, giving homeowners flexibility in fuel choice. Its expansive 75-inch opening creates a dramatic focal point, perfect for high-end residential projects, custom homes, and commercial installations.

Built as a factory-engineered modular system, the Mason-Lite firebox assembles on-site with precision components, including the firebox and smoke dome, ensuring consistent quality and long-term reliability. It is designed to meet NFPA 211 standards and requires a UL-listed chimney system for safe operation.

With its combination of customizable design, high thermal efficiency, and structural integrity, the MFP75 is the ultimate solution for architects, builders, and homeowners seeking a high-performance masonry fireplace kit.

Features

• 75-Inch Extra-Wide Firebox Opening
  Creates a bold, statement-making fireplace ideal for large spaces and luxury designs.
• Wood-Burning or Gas Compatibility
  Flexible fuel options allow for traditional wood fires or convenient gas setups.
• Lightweight Modular Masonry Construction
  Pre-engineered refractory concrete components reduce installation time and structural load while maintaining durability.
• Superior Heat Retention & Efficiency
  Designed for excellent thermal performance, radiating consistent warmth.
• Indoor & Outdoor Installation Versatility
  Suitable for both interior living spaces and outdoor kitchens or patios.
• Factory-Built Block System
  Precision-manufactured components ensure easy assembly and long-lasting performance.
• Large Framing Dimensions
  Approx. framing size: 83" W x 64 1/4" H x 30" D for spacious installations.
• Durable Refractory Components
  Includes hearth, sidewalls, rear walls, lintel, and dome sections for a complete firebox structure.
• Code-Compliant Design
  Built to meet NFPA 211 standards and requires UL103 Class A chimney systems for safe operation.
• Supports Multi-Story Installations
  Approved for installation on combustible floors when properly supported.
• Customizable Finishing Options
  Compatible with stone, brick, or veneer finishes to match any architectural style.

Specifications

Resources

• MFP75 Manual
• MFP75 Dimensions