Our lightweight, gas burning masonry fireplaces are taking the hearth industry by storm

Complete with realistic logs, a remote control, and safety features, these fireplace systems are attractive on or off and have superior thermal output.

Available in 39″, 44″, and 49″ units, our 10″ B-vent systems add value and elegance to a home without the mess and hassle of old fashioned, wood-burning fireplaces. Also, the MGFP43ST See Through is now available and utilizes 12” b-vent and comes with Grand Canyon Weathered Oak gas logs.  Designed for easy, multi-floor installations, our lightweight masonry fireplace systems meet all necessary U.S. building codes for outdoor / indoor construction.

Product Specifications

* These are actual product sizes. Please refer to the gas burning instruction manual for specifics.









MGFP 39 43″ 39″ 30¼” 21.5″ 27″ 950
MGFP 44 48″ 44″ 35¼” 24″ 32″ 1200
MGFP 49 53″ 49″ 40¼” 26.5″ 37″ 1250

All Single sided B-Vent Fireplaces come standard with a Mountain Crest Oak gas log set by RH Peterson. The MGFPST43 See Thru B-Vent Fireplace comes with a Beautiful See Thru Grand Canyon Gas Log Set.














(MGFP39, MGFP44, MGFP49) Mountain Crest Oak log set shown above.

(Additional log sets available for models above)



(MGFP43ST) Grand Canyon Weathered Oak log set shown above.

Product Features & Benefits

  • A fireplace system complete with a set of R.H. Peterson “Real-Fyre” realistic gas logs/ Grand Canyon Gas Logs for MGFPST43, designed with rich detail to replicate the natural beauty of wood.
  • Clean and Environmentally Friendly: Gas-burning fireplaces have lower outputs of carbon monoxide, pollutants, and particulate matter compared to wood-burners.
  • Convenient, No-Mess Operation: Free from sparks and long-burning embers, no chimney cleaning, no messy ashes or wood chips, no wood storage space needed.
  • Superior Warmth in Three Sizes:*
    • MGFP39 (39″): 65,000 BTU’s (natural gas)
    • MGFP44 (44″): 65,000 BTU’s (natural gas)
    • MGFP49 (49″): 75,000 BTU’s (natural gas)
    • * Also available for Propane
  • Smaller Flue (10″ instead of 14″, 12″ instead of 16″ for See Thru) for reduced framing requirements. Architects love it.
  • Compliant with ANSI-Z 21.50 Vented Decorative Gas Appliances
  • Handheld remote control for turning the gas on or off
  • Electronic ignition with battery backup
  • Safety shutoff feature for fail-safe operation
  • Utilized industry standard 10″ B-Vent chimney (12″ B-Vent for MGFPST43)
  • Optional firebrick colors and patterns for an authentic fireplace look-and-feel.


Check other Products


Gas Burning FAQs

Gas-burning models: MGFPST43, MGFP39, MGFP44, MGFP49.


Q: Can I install this fireplace outside

A: Yes. It is listed for BOTH indoors and out doors. Unit must be in an outdoor living space that has shelter from direct weather.


Q: Is this fireplace safe?

A: Yes. It has been tested to the ANSI Z21.50 for gas fireplace and is listed by PFS testing laboratories. Of course you must follow the operating instructions.


Q: Can I install the fireplace on a wood floor?

A : Yes


Q: Can I burn wood in this gas fireplace?

A: NO!


Q: What type of chimney do I use on this fireplace?

A: The fireplace has been tested with B- Vent chimney. Follow the instructions for safe installations.


Q: Can I install a glass door on the fireplace?

A: Yes, Follow the manufacturers instructions and always have doors in the fully open position when using the fireplace.


Q: Do I need firebrick inside the firebox?

A: Yes: MFI can supply firebrick panels for easy installation or a mason can lay firebrick inside the firebox.


Q: Can I install a see-thru Gas burning fireplace?

A:  Yes. The MGFPST43


Q: Can I install this gas fireplace in a bedroom?

A: This depends on the local building codes. The fireplace is safe but you have to follow the building codes.


Download our product data sheet for more details on the Mason-Lite fireplace system.

Download the Instruction Manual

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