Mason-Lite 44" Standard Wood Burning or Gas Firebox Kit - MFP44

The Mason-Lite 44" Firebox Kit (MFP44) is a premium pre-cast masonry fireplace system designed for both wood-burning and gas applications, offering the authentic look of traditional masonry with a lightweight, modern engineered structure. Built for durability and performance, it delivers outstanding heat retention, structural strength, and design flexibility for indoor and outdoor installations.

Crafted using high-strength lightweight concrete with natural aggregates, this firebox is engineered for efficient heat performance, easier installation, and reduced structural load requirements. It is suitable for residential and light commercial projects and is ideal for homeowners, builders, and architects seeking a reliable UL-tested masonry fireplace system.

Perfect for creating a warm focal point, the MFP44 supports a wide range of design styles including traditional, rustic, and contemporary fireplaces. Whether installed in living rooms, outdoor patios, or luxury builds, it provides a timeless hearth experience with modern safety and efficiency standards.

Features

• 44-inch masonry firebox kit designed for wood-burning or gas systems
• Lightweight precast construction for easier handling and installation
• Engineered for indoor and outdoor fireplace applications
• Compatible with Class A UL103 chimney systems
• Tested to meet UL127 safety standards for fireplaces
• Supports multi-story and combustible floor installations
• High heat resistance and superior thermal efficiency performance
• Optional firebrick panel designs (running bond or herringbone)
• Includes refractory mortar, rebar, and structural components
• Designed for reduced framing requirements and flexible installation
• Made in the USA with high-quality aggregate materials
• Limited lifetime warranty for long-term reliability

Specifications

Resources

• MFP44 Manual
• MFP44 Dimensions