Real Fyre 24" G21 Vent-Free Contemporary Glass Burner
The Real Fyre G21 is a vent-free contemporary glass burner from R.H. Peterson Co.: a stainless steel burner with a polished reflective panel that burns through a bed of Fyre Glass or Fyre Gems instead of logs. This listing is the 24" burner with on/off remote, order number G21-GL-24-12 for natural gas or G21-GL-24-12P for propane.
The glass is not included. The burner needs 10 lbs of Real Fyre glass or gems, ordered separately. Only Real Fyre glass and gems are certified for this burner.
What's Included
- G21 stainless steel vent-free burner with remote control valve and ODS safety pilot installed
- Polished reflective panel
- Remote transmitter and receiver
Key Features
- 24" vent-free glass burner
- On/off remote included
- Natural gas or propane; order the fuel you have (not field convertible)
- Needs 10 lbs of Fyre Glass or Fyre Gems, sold separately
What to Order With It
The burner cannot be used without media.
Required (choose one), 10 lbs:
-
Fyre Glass (GL-10 and GL-40 series, 10 lb or 40 lb)
-
Fyre Gems (GLG-10 and GLG-40 series, 10 lb or 40 lb)
Order the fuel you have. Vent-free burners cannot be converted from one gas to the other.
Specifications
| Order Number |
G21-GL-24-12 (natural gas), G21-GL-24-12P (propane) |
| Size |
24" |
| BTU |
35,000 natural gas; 30,000 propane |
| Glass Required |
10 lbs |
| Vent Type |
Vent-free |
| Control |
On/off remote; basic transmitter and receiver included |
| Burner |
Stainless steel with polished stainless steel trim |
| Gas Supply |
Natural gas 5" to 10.5" w.c.; propane 11" to 13" w.c.; 1/2" minimum supply pipe |
BTU ratings are from the 2026 Real Fyre price list.
Minimum Fireplace Dimensions
From the owner's manual and Real Fyre's vent-free sizing sheet.
| Size |
Front Width |
Rear Width |
Depth |
Height |
| 24" |
28" |
21" |
13" |
17" |
Clearances to combustibles, from the owner's manual:
- Sidewalls: at least 6" from each side of the fireplace opening
- Ceiling: at least 42" above the top of the fireplace opening
- Above the opening: at least 12" of noncombustible or heat-resistant material, or 10" if a fireplace hood is installed. Heat-resistant material such as marble or slate must be at least 5/8" thick
- Floor: if the burner sits at floor level or less than 6" above it, at least 12" of noncombustible material between the front of the fireplace and any combustible flooring
- Mantel or shelf: how far it may project depends on its height above the opening. Check the mantel clearance diagrams in the owner's manual before ordering
Vent-free burners are heaters and have room-size limits: the manual requires at least 50 cubic feet of room volume per 1,000 BTU. Burners over 10,000 BTU cannot go in a bedroom and burners over 6,000 BTU cannot go in a bathroom. Some states and cities restrict or prohibit vent-free gas appliances, so check your local code before ordering. Glass doors must be fully open while the burner is on.
Warranty
Indoor burners and stainless steel burners, excluding controls: ten years. Valves, pilots and controls: one year. Batteries are not covered. Fyre Glass, Fyre Gems and Diamond Nuggets: ten years. The warranty is from R.H. Peterson Co., applies to the original purchaser for single-family residential use, runs from the purchase date and needs proof of purchase.
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