Mason-Lite 43" See-Through Firebox Kit (MFPST43)

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Mason-LiteSKU: MFPST43
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Sale price$4,399.99 Regular price$5,599.99
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Mason Lite 43" See-Through Firebox Kit (MFPST43) Overview

The MFPST43 has a finished opening of 43 1/4" W x 26 7/8" H and is a standalone unit that can be built indoors or outdoors to burn wood or gas. Made from the same light-weight material as the other Mason-Lite fireplaces allows this unit to be installed on decks and other wood framing. Available accessories include full running bond and split herringbone brick liners in standard sizes.


  • Size: 43 Inches
  • Color: Masonry
  • Product Dimensions: 53" W x 62 7/8" H x 28" D
  • Made in the USA
  • Limited lifetime warranty
  • Energy efficient with a wider heat radiant
  • Less expensive shipping and handling costs
  • Allows for multi-story combustible floor installations
  • Heat-resistant - fire-tested up to 1700 degrees Fahrenheit
  • 50% cheaper than traditional hand-built masonry fireplace
  • Complies with UL 127 and UL 103 chimney component standards
  • Standalone unit that can be built indoors or outdoors to burn wood or gas
  • Superior thermal efficiencies with the highest resistance strength at 28 days

Technical Specifications

  • Framing Dimensions: 57" W x 80" H x 30" D
  • Actual Viewing Area: 43 1/4" W x 26 7/8" H
  • Venting Dimensions: 16"
  • Approved Vent Systems: Mason-Lite

Manuals and Guiles

Product Manual

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