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21 Years
experience
Trusted Lightweight Masonry Fireplaces in Riverside, CA
Since 2005, Mason-Lite has pioneered lightweight masonry fireplace systems, combining over 150 years of collective industry expertise with innovative manufacturing techniques. Our products, entirely USA-sourced and produced, offer architects, designers, and homeowners a cost-effective alternative to traditional masonry without compromising quality or aesthetics. Engineered for strength-to-weight superiority, our fireplaces achieve 26% greater structural integrity while reducing shipping costs by 50% compared to competitors. With modular designs tested to UL127 safety standards and compliance across international building codes, we provide solutions for multi-story applications, outdoor living spaces, and custom architectural visions.

Our patented pumice-based concrete formulation delivers unmatched thermal resistance up to 1700F, ensuring durability and safety. Recognized by PFS, ICC-ES, and EPA Phase II programs, we maintain rigorous quality control through factory-trained installation specialists and comprehensive technical support. From standard 33-inch units to 30-foot custom installations, our team collaborates directly with structural engineers to realize complex projects while maintaining strict adherence to safety protocols. This commitment to innovation and customer collaboration has established Mason-Lite as an industry leader in modular fireplace systems.
Services
Traditional Fireplaces Linear Fireplaces Custom Fireplaces Vent-Free Systems Outdoor Fireplaces Gas Log Systems Wood Burning Units Pizza Oven Kits Burner Installations Masonry Chimneys
Details
  • Year established: 2005
Highlights and features
  • 150+ years combined experience in fireplace manufacturing
  • 26% stronger than competitors with 50% lighter weight
  • 100% USA-sourced and manufactured products
  • Custom designs up to 30 feet wide available
  • Compliant with international building and safety codes
Associations and certifications
  • PFS
  • ICC-ES AC375
  • UL127
  • UL103
  • ANSI Z21.60
  • NFPA211
  • EPA Phase II
What people say
Awesome products Top notch service Easy installation Quick order shipping Excellent support
Services
Traditional Fireplaces
Our traditional masonry fireplaces combine centuries-old craftsmanship with modern engineering. Using patented pumice-based concrete, these units offer 50% weight reduction while maintaining structural integrity. Available in standard sizes from 33 to 120 inches with optional Rumford-style conversions, they meet UL127 safety standards and carry a limited lifetime warranty.
Linear Fireplaces
Contemporary linear designs range from 48 to 120 inches with customizable configurations. These units feature optional Opalescence LED burners and accommodate both B-vent and Class A chimney systems. Tested to UL103 standards, they offer flexible installation options for indoor and outdoor applications.
Custom Fireplaces
Fully customized solutions for unique architectural requirements, including see-through, corner, and multi-sided configurations. Available in wood-burning, gas, and vent-free options up to 30 feet wide. Each unit is engineered to meet NFPA211 standards with pre-cut, complete installation kits.
Vent-Free Systems
EPA-certified vent-free fireplaces eliminate the need for chimney infrastructure while providing efficient heating. Available in 24-60 inch sizes with optional LED lighting, these units deliver up to 40,000 BTUs of heating power while meeting ANSI Z21.11.2 safety standards for approved installations.
Outdoor Fireplaces
Weather-resistant fireplace systems designed for outdoor living spaces. Available in traditional and linear configurations with optional powder-coated steel doors. All units meet UL127 safety standards and include corrosion-resistant components for extended outdoor durability.
People
Bill Harris
Founder
With over 50 years of industry experience, Bill Harris co-founded Mason-Lite in 2005 after leading a successful global fireplace distribution company. His expertise in modular fireplace engineering and commitment to quality manufacturing established Mason-Lite as an industry innovator.
Questions
Can Mason-Lite fireplaces be installed on upper levels?
Yes, our fireplaces are specifically designed for multi-story applications with proper structural engineering.
What are the key advantages of Mason-Lite systems?
Our fireplaces offer 50% weight reduction, 26% greater strength, and easier installation compared to traditional masonry.
How do I purchase Mason-Lite products?
Contact us directly at 800-345-7078 for a list of authorized distributors in your area.
Are specialized installers required?
Yes, installations should be performed by technicians trained in Mason-Lite system protocols.
What finishing options are available?
Our fireplaces can be finished with brick, marble, tile, or stone while maintaining safety clearances.
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