Grand Canyon 24" to 120" Jumbo See Through Vented Burner System
The Grand Canyon Jumbo See-Through Burner is a vented gas log burner for large see-through (two-sided) fireplaces, including the 24" deep burner space in Isokern Magnum series fireplaces. It is built from a ceramic-coated chassis with welded bar-stock burner tubes, and ships match-lit so you can add the control system that suits the size.
It comes in 9 sizes from 24" to 120". Model numbers are JUMBOBRNR-ST##, where ## is the size. Grand Canyon builds every Jumbo burner for natural gas; choosing propane adds the LP conversion kit (LP-CONV). Jumbo logs are sold separately.
What's Included
- Burner
- Lava rock
- Embers
- Flex line and fittings
- Damper clamp
- LP conversion kit (propane option only)
Key Features
- 9 sizes: 24", 30", 36", 42", 48", 60", 72", 84", 120"
- 103,000 to 250,000 BTU on natural gas across the 24" to 60" sizes
- Ceramic-coated chassis with welded bar-stock burner tubes
- Needs a firebox at least 26" deep
- Ships match-lit; add a high capacity control system if you want a pilot or remote
- Natural gas burner; propane option adds the LP conversion kit
- Vented: the fireplace damper must be locked open with the included damper clamp
- Jumbo logs are required and sold separately (see below)
What to Order With It
The burner does not include logs. Pick the Jumbo log set in the same size as the burner. Our log listings are sold as logs and burner together, so if you have not bought the burner yet you can order both from the log page.
Required:
Optional controls:
These burners run at high BTU, so the control has to be matched to the size and fuel. Tell us both and we will confirm the right kit before you order.
Optional:
-
Extra Embers (GLE-6B black glowing embers, PBE-1 platinum bright embers)
Specifications
| Size |
Model |
BTU Natural Gas |
BTU Propane (with LP-CONV) |
| 24" |
JUMBOBRNR-ST24 |
103,000 |
95,000 |
| 30" |
JUMBOBRNR-ST30 |
112,000 |
110,000 |
| 36" |
JUMBOBRNR-ST36 |
165,000 |
155,000 |
| 42" |
JUMBOBRNR-ST42 |
185,000 |
170,000 |
| 48" |
JUMBOBRNR-ST48 |
210,000 |
195,000 |
| 60" |
JUMBOBRNR-ST60 |
250,000 |
235,000 |
| 72" |
JUMBOBRNR-ST72 |
Not published |
Not published |
| 84" |
JUMBOBRNR-ST84 |
Not published |
Not published |
| 120" |
JUMBOBRNR-ST120 |
Not published |
Not published |
| Vent Type |
Vented |
| Use |
Indoor |
Minimum Fireplace Dimensions
Measure the empty firebox: front opening width, back width, depth and height. These are the smallest fireboxes each size will fit.
| Burner Size |
Front Width |
Back Width |
Depth |
Height |
| 24" |
36" |
36" |
26" |
30" |
| 30" |
42" |
42" |
26" |
30" |
| 36" |
48" |
48" |
26" |
30" |
| 42" |
54" |
54" |
26" |
30" |
| 48" |
60" |
60" |
26" |
30" |
| 60" |
72" |
72" |
26" |
30" |
| 72" |
Not published |
Not published |
Not published |
Not published |
| 84" |
Not published |
Not published |
Not published |
Not published |
| 120" |
Not published |
Not published |
Not published |
Not published |
Grand Canyon does not publish ratings or firebox minimums for the 72", 84", 120" sizes. Call us with your firebox measurements before ordering.
Keep glass doors fully open while the burner is running, and keep furniture at least 36" from the front. Not for installation in manufactured or mobile homes.
Warranty
Burner: lifetime warranty against manufacturing defects or breakage when installed indoors by a professional installer; one year if installed outdoors. Paint finish is not covered. Warranty is limited to the original purchaser.
Documents
The installation manual is the manufacturer's current one but dates from 2018; where its figures differ from the 2026 price guide we have published the price guide's.
