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Real Fyre Contemporary 24-Inch See-Through Vent-Free Gas Fire Glass Set Insert

Real Fyre Contemporary 24-Inch See-Through Vent-Free Gas Fire Glass Set Insert

SKU G21-GL-2-24-12
$2,698.80
$2,076.00
Fuel Type

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Real Fyre Contemporary 24-Inch See-Through Vent-Free Gas Fire Glass Set Insert

  • Dual-Sided Flame View: The see-through design lets you enjoy a stunning live flame display from both sides of a peninsula or see-through fireplace, making it a true centerpiece for open-concept living.
  • Vent-Free Efficient Heating: With nearly 100% heat retention and up to 36,000 BTUs, this vent-free system keeps warmth indoors without requiring a chimney or flue, lowering your energy costs.
  • Reflective Fire Glass Media: Tempered fire glass amplifies flame brightness and movement, creating a sleek, contemporary aesthetic that elevates any modern or minimalist interior.
  • Built-In Safety Sensor: The included Oxygen Depletion Sensor (ODS) continuously monitors air quality and automatically shuts off the unit if oxygen levels drop, ensuring safe indoor operation.
  • Flexible Ignition Options: Choose between a manual safety pilot or a millivolt remote-ready system that pairs with wall switches, thermostats, and handheld remotes for effortless control.
  • Customizable Glass Colors: Multiple fire glass color options let you tailor the look of your fireplace to perfectly complement your existing décor and personal style.
Real Fyre Contemporary 24-Inch See-Through Vent-Free Gas Fire Glass Set Insert
Specifications
Electrical
  • Ignition: Manual safety pilot or millivolt remote-ready
  • Power Requirement: None required for manual or millivolt systems
  • Remote Compatibility: Works with thermostats, wall switches, and handheld remotes (millivolt)
Flame & Controls
  • Flame Type: Live gas flame over reflective fire glass bed
  • Flame Effect: Dynamic, lifelike flames with glowing ember effect
  • Viewing Style: See-through dual-sided flame display
General
  • Fire Glass Set Size: 24 inches
  • Minimum Fireplace Opening: Approx. 30 inches W x 18 inches H x 14 inches D
  • Fuel Type: Natural Gas or Liquid Propane
  • Heat Output: Up to 36,000 BTUs
  • Venting: Vent-free, no chimney required

Real Fyre Contemporary 24-Inch See-Through Vent-Free Gas Fire Glass Set Insert

The Real Fyre Contemporary 24-Inch See-Through Vent-Free Gas Fire Glass Set Insert offers a sleek, modern alternative to traditional log sets, ideal for see-through or peninsula fireplaces. Its reflective fire glass enhances flame brightness and movement, providing a striking centerpiece that can be enjoyed from multiple angles.

The 24″ size is designed to fit medium to wide fireplace openings, delivering both visual impact and efficient heating. The vent-free design ensures nearly all generated heat stays indoors, making it an effective zone-heating solution.

The heavy-duty steel burner produces dynamic, lifelike flames across the fire glass bed, complemented by a glowing ember effect. Operation is easy with manual safety pilot or millivolt remote-ready ignition options, while the included Oxygen Depletion Sensor (ODS) ensures safe indoor use.

Perfect for contemporary interiors, open-concept living spaces, or homeowners who want a minimalist, stylish fire display, this see-through fire glass insert combines efficiency, safety, and modern aesthetics.

Real Fyre Contemporary 24-Inch See-Through Vent-Free Gas Fire Glass Set Insert Key Features & Benefits

  • See-Through Fire Glass: Reflective glass provides modern aesthetic and dual-sided flame view.
  • Medium Fireplace Coverage: 24″ size offers full visual impact for mid-sized openings.
  • Vent-Free Efficiency: Retains nearly 100% of heat indoors without venting.
  • Lifelike Flames: Heavy-duty steel burner produces realistic, dynamic flame patterns.
  • Customizable Media: Fire glass color options available to match décor.
  • Safe Operation: Oxygen Depletion Sensor (ODS) ensures safe indoor use.
  • Flexible Ignition: Manual safety pilot or millivolt remote-ready systems.
  • Remote Compatible: Works with wall switches, thermostats, and handheld remotes (millivolt).
  • Durable Construction: Steel burner and tempered glass ensure long-lasting performance.
  • Stylish Solution: Ideal for contemporary, minimalist, or open-concept interiors.

HEAT OUTPUT & FUEL

  • Heat Output: Up to 36,000 BTUs
  • Fuel Type: Natural Gas or Liquid Propane
  • Venting: Vent-free, no chimney required
  • Efficiency: ≈ 99%

BURN AREA

  • Fire Glass Set Size: 24″
  • Minimum Fireplace Opening (approx.): 30″ W x 18″ H x 14″ D
  • Viewing Area: Full fire glass bed with dynamic flame effect

DIMENSIONS

  • Fire Glass Length: 24″
  • Burner: Precision-engineered vent-free steel burner

CONSTRUCTION & MATERIALS

  • Burner: Heavy-duty steel with precision ports
  • Media: Tempered fire glass (color options) with sand/granules
  • Reinforcement: Steel burner frame ensures durability

CERTIFICATIONS & USE

  • Certification: ANSI certified for vent-free indoor use
  • Safety Features: Oxygen Depletion Sensor (ODS) included
  • Use: Indoor residential only
  • Restrictions: Not approved for bedrooms, bathrooms, or high-altitude areas
  • Installation: Professional installation recommended

ELECTRICAL SPECIFICATIONS

  • Ignition Options: Manual safety pilot or millivolt remote-ready
  • Power Requirement: None for manual/millivolt systems
  • Remote Compatibility: Works with thermostats, wall switches, and handheld remotes (millivolt)

CLEARANCE REQUIREMENTS

  • Side Wall: Minimum 6″
  • Mantel: Minimum 12″ above fireplace opening
  • Follow manufacturer guidelines for safe installation

WARRANTY

  • Burner & Fire Glass: 10-Year Limited Warranty
  • Valves & Controls: 3-Year Warranty

DESIGN

  • Series: Contemporary Vent-Free Fire Glass Collection
  • Style: Sleek, reflective fire glass design
  • Flame Effect: Dynamic flames across a 24″ see-through glass bed
  • Application: Perfect for see-through, peninsula, or open-concept fireplaces

WHAT’S IN THE BOX

  • 24″ See-Through Fire Glass Set (selected color)
  • Vent-Free Burner Assembly
  • Fire Glass Media Starter Set
  • Sand/Granules
  • Control Valve & Ignition Components (per ignition type)
  • User Manual
Installation
  • Professional Installation Recommended
  • Indoor Residential Only
  • Vent-Free — No Chimney or Gas Required
Downloads & Resources

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Frequently Asked Questions

  • The 24-inch G21 See-Through burner requires a minimum firebox opening of 28 inches (front width) × 16 inches (depth) × 17 inches (height). You should measure the interior of your fireplace — not your old log set — to confirm it meets these minimums before purchasing. This set is compatible with existing masonry wood-burning fireplaces, prefabricated fireplaces, and approved ventless firebox enclosures.

  • The 24-inch G21 burner delivers up to 40,000 BTUs on both Natural Gas and Liquid Propane. For indoor installations, Real Fyre provides a room-sizing formula: multiply the room's length × width × height × 20 to determine the maximum BTU allowed for safe vent-free operation in that space. This makes it suitable for supplemental heating in medium-to-large living areas.

  • Fire glass is not included and must be purchased separately — the burner will not operate without it. For the 24-inch See-Through model, approximately 12½ lbs of fire glass is required. Buyers can choose from several decorative media options including regular Fyre Glass, reflective Fyre Glass, or Fyre Gems in a wide range of colors.

  • The G21 burner is equipped with an Oxygen Depletion System (ODS) pilot that automatically shuts off the burner if indoor oxygen levels drop to an unsafe level, and it is ANSI certified for safe vent-free operation. Professional installation by a licensed technician is strongly recommended — and required to maintain warranty coverage — as local building codes for vent-free appliances vary by jurisdiction. Always verify that vent-free gas appliances are permitted in your city or municipality before purchasing.

  • RH Peterson (Real Fyre) covers the burner assembly for ten (10) years against defects in materials and workmanship. The decorative fire glass, gems, and nuggets are warranted for five (5) years, while the included electronics and gas controls carry a one (1) year limited warranty. Note that the warranty does not cover on-site labor, installation costs, or removal of parts prior to replacement.