$0.00 0

Cart

No products in the cart.

$0.00 0

Cart

No products in the cart.

Expert Support

High Standards

Fast Shipping

In Stock
  • Authorized Dealer

RH Peterson Real Fyre G21 18″ See-Thru Vent Free Fyre Glass Burner

Item #: G21-GL-18-2-12

SKU:

Price range: $1,994.00 through $2,109.00

The Real Fyre G21 See-Through Vent-Free Burner is designed to create a stunning modern focal point with a vibrant, full flame display on both sides of your fireplace. This 18" burner is specifica...

See Full Product Description

  • Expert Support
  • Secure Checkout
  • Warranty Included
  • Reliable Delivery
Free shipping · ships direct from the manufacturer · typically delivered curbside in 5–17 business days. We email you the lead time for your item within one business day of ordering.
Not sure this is the right part? Ask a fireplace specialist.Call (540) 212-9374, Mon–Fri 9 AM–5 PM ET. Our hearth product specialists will confirm the model, venting and parts match before you order. Everything ships direct from the manufacturer; installation is by your own licensed local installer.
Free shipping on most orders over $99 · Authorized dealer · Manufacturer warranty included

Returns may be subject to a 20% restocking fee. Shipping and processing fees are non-refundable.

  • Free Shipping on Orders Over $99
  • Product Support Available
  • Secure Checkout
  • Trusted Payment Methods

Product Description

Real Fyre G21 18" See-Thru Vent Free Fyre Glass Burner from RH Peterson

The Real Fyre G21 See-Through Vent-Free Burner is designed to create a stunning modern focal point with a vibrant, full flame display on both sides of your fireplace. This 18" burner is specifically engineered for use with Fyre Glass and Fyre Gems, allowing you to customize your look with a wide selection of shimmering glass media.

With its efficient, clean-burning design, the G21 helps conserve fuel while delivering impressive warmth—producing up to 35,000 BTUs on natural gas. The ANSI-certified system comes pre-assembled with a remote control valve, Oxygen Depletion Sensor (ODS), and see-through configuration for safe, reliable performance. A polished reflective panel enhances the flame and glass glow, adding extra depth and drama to your fire feature.

This all 304 stainless steel burner burns cleanly with glass/gems directly on burner ports, providing a beautiful sea of flames. Only 10½” front-to-back, the mirrored front and back panels create a high and deep flame appearance. With its sleek lines, wide variety of choices for accessorizing (many unique colors in Fyre Gems and Fyre Glass), and a striking polished mirror finish, the G21 is the perfect addition to any contemporary hearth.

Features:

  • 18" see-through vent-free burner

  • Designed for use with Fyre Glass and Fyre Gems

  • Dazzling, multi-view flame presentation

  • Efficient design supports responsible fuel use

  • ANSI-certified vent-free system

  • Pre-assembled remote control valve with easy on/off operation

  • Integrated ODS safety system

  • Polished reflective panel for enhanced visual effect

  • Fuel connector kit included

  • BTU rating (Natural Gas): 35,000

Specifications

Burner Model Minimum Fireplace Size (refer to Fig. 3-1) BTU Rating
Width Depth Height Nat. Gas L.P. Gas
G21-GL-2-18 22" 16" 17" 37k 35k
G21-GL-2-24 28" 16" 17" 40k 40k

Additional Media Kit Options

The amount of glass or gems required is 7½ lbs for 18”, 10 lbs for 24”, 15 lbs for 30” burner, 10 lbs for 18” see-thru, and 12½ lbs for 24” see-thru.

Fyre Glass

  • Azuria
  • Black
  • Bronze
  • Caribbean Blue
  • Clear
  • Emerald 
  • Star Fyre

Reflective Fyre Glass

  • Azuria Reflective
  • Black Reflective
  • Bronze Reflective
  • Caribbean Blue Reflective
  • Copper Reflective
  • Emerald Reflective
  • Gold Reflective
  • Champagne Reflective

Fyre Gems

  • Black Pearl
  • Blue Topaz
  • Champagne
  • Deep Amber
  • Emerald
  • Glacier
  • Sapphire
  • Ruby

Premium Accessories

Bluetooth Control

Use your smart phone to control your Real Fyre gas logs! Compatible with selected Real Fyre vent-free ON/OFF controlled burners (-12), the compact battery operated Real Fyre Bluetooth Control connects easily to your appliance…then download the app and you’re ready to go. Choose oak or white birch wood chunk covers to conceal and protect the receiver in your fireplace.

Fyrebacks

The Real Fyre® collection of Fyrebacks is specially designed to augment the flame reflection in your fireplace while providing a functional backdrop for your fire logs or Contemporary Alternative products. Contemporary or Traditional styles are available in either satin stainless steel, polished stainless steel, or a black porcelain finish.

Decorative Accessories

Create a cozy and elegant environment in your home with Real Fyre® Gas Logs. To further enhance your hearth, select from an array of
additional wood chunks, acorns, pine cones and lava media.

Specifications

Video

No video is available.

FAQs

Q: Do You Ship to Me?

A: We ship throughout the continental United States with free shipping on orders over $99 (flat rate $9.99 under $99). For Alaska, Hawaii, and U.S. territories, please contact us for a custom shipping quote, which we'll provide within 1-2 business days. Orders to these locations are not processed until shipping costs are confirmed and approved. We do not currently offer international shipping outside of the United States and its territories.

Q: When Will My Order Ship?

A: Orders are processed within 1–3 business days, and delivery after shipment takes 5–14 business days depending on your location. Custom-made and made-to-order products require 2-3 weeks for production before shipment. Special order items typically take 1-2 weeks. You'll receive tracking information once your order ships. For specific timing on your order, please contact us.

Q: What Payment Methods Do You Accept?

A: We accept all major credit and debit cards (Visa, MasterCard, American Express, Discover), Apple Pay, Google Pay, and Link by Stripe for one-click checkout.

Q: Can I Cancel or Modify My Order?

A: For ready-to-ship items, contact us immediately if you need to cancel or modify. We'll do our best to accommodate if the order hasn't shipped yet. For custom-made, made-to-order, and special order items, these are final sale and cannot be canceled or modified once production begins or the order is submitted to the manufacturer. Please double-check your order details before completing your purchase.

Q: Why Choose First Response Fireplace Products?

A: We bring years of specialized expertise to the fireplace industry. When you choose us, you're getting the knowledge and experience that comes from being dedicated fireplace industry experts.

More Questions?

  • Secure Checkout
  • Trusted Payment Methods
  • Manufacturer Warranty Included
  • Expert Customer Support
  • Fast & Reliable Delivery

© 2026 First Response Fireplace Products, All rights reserved

Request a Quote

Please fill out the form below to provide us with more information. One of our experts will contact you after submission.
You can also call our experts (540) 212-9374
*Required
Checkbox*

Freight Shipping

After processing, your order will ship and should arrive within 5-7 business days, depending on your location
Your order comes with free lift gate service. The freight driver will use a lift gate to unload the shipment and place it curbside at your home. You’ll need to move the shipment from the curb to the end location. Please make sure your street can accommodate a tractor-trailer.
Upon delivery, you’ll be asked to sign the Proof of Delivery (POD). Before signing, inspect the shipment for visible damage. If damaged, refuse the shipment and call us for a replacement. Damage to products inside the shipment must be reported within 3 business days of delivery.