Grand Canyon 18" to 42" Indoor Vented 3-Burner System
The Grand Canyon 3-Burner System is a vented gas log burner for a wood-burning fireplace, with three burners, which gives a taller, fuller flame than the 2-burner. It is built from a ceramic-coated chassis with welded bar-stock burner tubes, for indoor fireplaces. The burner ships match-lit, without a control valve, so you can add the safety pilot, millivolt or electronic system you want.
It comes in 6 sizes from 18" to 42". Model numbers are 3BRN-##, where ## is the size. The burner is built for natural gas; choosing propane adds the LP conversion kit (LP-CONV: orifice and air mixer). Logs are sold separately.
What's Included
- Burner
- Lava rock
- Black glowing embers
- Flex line and inlet fitting
- Damper clamp
- LP conversion kit and vermiculite (propane option only)
- Rating plate and manual
Key Features
- 6 sizes: 18", 21", 24", 30", 36", 42"
- 46,000 to 120,000 BTU on natural gas, depending on size
- Ceramic-coated chassis with welded bar-stock burner tubes
- Indoor use
- Ships match-lit; add a control system if you want a pilot or remote
- Natural gas burner; propane option adds the LP conversion kit
- Gas inlet on the left or right, 1/2" NPT
- Vented: the fireplace damper must be locked open with the included damper clamp
- Tested to ANSI Z21.60 for decorative gas appliances in solid-fuel fireplaces
- Logs are required and sold separately (see below)
What to Order With It
The burner does not include logs. Pick one 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 (choose one):
-
Arizona Weathered Oak Logs (AWO##LOGS, sizes 18", 21", 24", 30", 36", 42")
-
Arizona Juniper Logs (AJ##LOGS, sizes 18", 21", 24", 30", 36", 42")
-
Quaking Aspen Logs (ASPEN##LOGS, sizes 18", 24", 30", 36", 42")
-
Arizona Weathered Oak Charred Logs (AWOC##LOGS, sizes 18", 24", 30", 36", 42")
- Western Driftwood Logs (DRIFTWOOD##LOGS, sizes 18", 21", 24", 30", 36", 42")
Optional controls:
-
Safety Pilot Quick Mount Kit (SPQMKN, SPQMKLP): standing pilot, manual on/off. Fits 18" to 24" natural gas, 18" to 36" propane
-
High Capacity Safety Pilot Kit (HCSPK-NG, HCSPK-LP): fits 18" to 42"
-
Millivolt Quick Mount Kit (MVQMKN, MVQMKLP): standing pilot, works with the GCRK remote. Fits 18" to 24" natural gas, 18" to 36" propane
-
Modulating Millivolt Valve Kit with Remote (MMVKR-NG, MMVKR-LP): variable flame height. Fits 18" to 42"
-
High Capacity Millivolt Valve Kit (HCMVQMKN, HCMVQMKLP): fits 18" to 42"
-
Battery Powered Electronic Ignition System (MVKEIKN, MVKEIKLP): pilot on demand, includes remote. Fits 18" to 42"
-
GCRK Remote Control Kit (GCRK): on/off remote for the millivolt kits
Optional:
-
Twig Sets (AJTWIG3, ASPENTWIG4, AWOCTWIG3, AWOTWIG3, AWOTWIG5, DRIFTWOODTWIG3): add height and mass to the log stack
-
Extra Embers (GLE-6B black glowing embers, PBE-1 platinum bright embers)
Specifications
| Size |
Model |
BTU Natural Gas |
BTU Propane (with LP-CONV) |
| 18" |
3BRN-18 |
46,000 |
41,000 |
| 21" |
3BRN-21 |
58,000 |
58,000 |
| 24" |
3BRN-24 |
74,000 |
64,000 |
| 30" |
3BRN-30 |
102,000 |
91,000 |
| 36" |
3BRN-36 |
111,000 |
106,000 |
| 42" |
3BRN-42 |
120,000 |
121,000 |
| Vent Type |
Vented |
| Manifold Pressure |
3.5" W.C. natural gas, 10" W.C. propane |
| Inlet Pressure |
4.5" to 7" W.C. natural gas, 11" to 14" W.C. propane |
| Gas Inlet |
1/2" NPT, left or right |
| Use |
Indoor |
| Standard |
ANSI Z21.60 |
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 |
| 18" |
30" |
18" |
14" |
16" |
| 21" |
33" |
21" |
14" |
16" |
| 24" |
36" |
24" |
14" |
16" |
| 30" |
42" |
30" |
16" |
16" |
| 36" |
48" |
36" |
16" |
16" |
| 42" |
54" |
42" |
16" |
16" |
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.
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