Grand Canyon 36" Assembled 3-Burner See-Through Vented Gas Burner System with Electronic Ignition & Rock Kit
Overview
Engineered for dramatic two-sided fireplaces, the Grand Canyon 36" Assembled 3-Burner See-Through gas burner system delivers a commanding 135,000 BTU of flame visible from both rooms. Built on a 304 stainless steel chassis with metal bar stock and burner pipes, this factory-assembled system arrives pre-tested with its control system installed and ready for a licensed installer to connect.
This package pairs Grand Canyon's Modulating Millivolt valve with battery electronic ignition (MVKEI) for reliable, remote-ready operation, and includes the Grand Canyon Rock Kit (GCRK) with lava rock and black embers to complete the bed. Choose Natural Gas or Propane to match your home's fuel supply. Logs are sold separately.
Specifications
- Size: 36 in (See-Through / two-sided)
- Configuration: Assembled 3-Burner See-Through system
- BTU Output: 135,000 BTU (Natural Gas) / 125,000 BTU (Propane)
- Ignition: Battery Electronic Ignition with Modulating Millivolt valve & remote (MVKEI), 2 D-cell battery, non-standing pilot
- Fuel Type: Natural Gas or Propane
- Chassis Material: 304 stainless steel with metal bar stock and burner pipes
- Venting: Vented (for vented fireplace enclosures)
- Application: Indoor use
- Included: Assembled burner, Rock Kit (lava rock & black embers), fittings, flex line, damper clamp (vermiculite included on Propane models). Logs not included.
- Listing: Tested to ANSI standard
- Warranty: Lifetime warranty
- Origin: 100% Made in the USA
ExceptionalFire is an authorized Grand Canyon dealer. Professional installation by a licensed gas contractor is required.
Specifications
| Vendor | Grand Canyon |
|---|---|
| Fuel Type | Natural Gas, Propane |
| Type | Gas Logs |
| SKU | 3BRN-ST36-NG-MVKEI-GCRK |
Shipping & Returns
Free shipping across the contiguous US. Ships in 3-10 days from our facility.
All shipments are insured and tracked. You'll receive a tracking number via email within 24 hours of dispatch.
30-day returns on stock items in original condition. Free return shipping if the item arrives damaged or doesn't match the listing.
Warranty
This product is backed by our 5-year limited warranty against manufacturing defects in materials and workmanship.
Warranty covers structural integrity, finish, and hardware. Normal wear, damage from improper installation, and modifications void coverage.
To file a claim, email warranty@exceptionalfire.com with your order number and photos of the issue.
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Frequently asked questions
Vented vs. ventless gas logs — which is right for me?
Vented gas logs require a working chimney/flue (open damper during use). They produce a more realistic, taller flame and expel combustion byproducts outdoors. Ventless (vent-free) gas logs burn cleaner so they don't require a flue — but they release combustion moisture and trace byproducts into the room. Vented = more realistic look + fully outdoor exhaust. Ventless = higher heat efficiency + flexible install but check local codes (some jurisdictions restrict ventless).
Are ventless gas logs safe?
Ventless gas logs sold in the US must include an oxygen depletion sensor (ODS) by design — the unit shuts off automatically if room oxygen drops below safe levels. Most also include built-in carbon monoxide protections. To use safely: install a CO detector in the room, follow the BTU sizing limits for your room volume, crack a window if running for extended periods, and don't run continuously for more than the manufacturer's stated maximum (typically 4 hours). Some states and municipalities do not permit ventless installation — check your local code.
Can I use gas logs in my wood-burning fireplace?
Yes — vented gas logs are designed to drop into a working masonry or pre-fab wood-burning fireplace. The chimney/flue must be inspected and verified working (open damper during use). You'll also need a gas line run to the firebox if one isn't already there. Always have a licensed gas plumber install the line and have a hearth professional install and test the burner.
How do I light gas logs?
Most modern gas log sets use a millivolt valve with a wall switch or remote, or a match-light system where you ignite a pilot manually with a match. Check your specific set's manual. For first lighting after install, follow the manufacturer's burn-in procedure (typically 4–6 hours total of staged burns) to cure the logs and burner coatings before regular use.
Free shipping and warranty?
Free freight shipping on all orders, contiguous US. Most gas log sets carry a 5-year warranty on the burner and a limited lifetime warranty on the ceramic logs against defects (warranty terms vary by manufacturer — full details on each product page). 30-day return window on unused, uninstalled gas log sets.