Montigo Distinction D3615NI-2 Single-Sided Direct Vent Gas Fireplace, 36"

The Montigo Distinction D3615NI-2 opens with a 36 x 15½-inch viewing area framed by black reflective glass panels — a wide, low, cinematic proportions that suit contemporary interiors far better than the traditional tall-and-narrow box. Behind that glass, a concealed linear burner sits beneath 6 lbs of ice fireglass, keeping the mechanics invisible and the aesthetic intentional.

Heat output runs from 23,000 BTU on low to 35,000 BTU on high for natural gas (28,000–35,000 BTU for liquid propane), with an efficiency rating of 71.96% on natural gas and 70.48% on propane. The Proflame 2 IPI ignition system means no standing pilot wasting energy when the fireplace isn't in use — it lights on demand, and battery backup ensures it lights even when the power doesn't cooperate.

The included multi-function Proflame 2 remote handles Hi-Lo flame control with a 30% turndown range, so you're not stuck choosing between "roaring" and "off." Remote-controlled fans are included as well. For homeowners who prefer to manage things from a phone rather than a handheld remote, the D3615NI-2 is compatible with optional WiFi app control — a retrofit that requires no rethinking of the install.

Multicolor LED uplighting is built in, adding a layer of ambiance that operates independently of the flame — useful for warmer months when the visual appeal of the fireplace matters more than the heat output. The micro mesh screen completes the front face cleanly, without the visual clutter of traditional grates or grilles.

Installation is a direct vent design using a 5-inch inner / 8-inch outer vent system, with the option to reduce to 4/7 for tighter framing situations. The framing opening is 51⅞ inches wide by 41 inches tall by 16⅞ inches deep, with zero rear clearance required — a practical advantage in new construction and remodel projects alike. Side clearances are 4½ inches. Framing must be non-combustible material.

The D3615NI-2 is part of Montigo's Distinction series, which means it's compatible with adjustable trim kits and optional fluted liners in ash and Tuscan styles, giving installers and designers real flexibility in how the surround is finished. It also works with Montigo's Cool Wall Advantage heat management system — specifically the HDKPD36 pedestal kit for this 36-inch model, as well as Cool Wall sidewall kits HDKSD and HDKSVD — for applications where wall surface temperatures need to be managed carefully. Propane conversion is available via conversion kit, making fuel-source changes straightforward after installation.

Pilot on Demand (POD) capability rounds out the feature set, giving you an intermittent pilot that's ready when you are, without the inefficiency of continuous operation. At $5,779, the D3615NI-2 is a specification-grade fireplace built for installations where the details actually matter.

• 36 x 15½-inch viewing area with black reflective glass panels and concealed linear burner
• 35,000 BTU max output; 23,000 BTU low (natural gas) with 30% flame turndown via Proflame 2 remote
• 71.96% efficiency on natural gas; 70.48% on liquid propane (propane conversion kit available)
• IPI ignition with Pilot on Demand (POD) and battery backup for power-outage reliability
• Multicolor LED uplighting included — operates independently of the flame
• Remote-controlled fans included; optional WiFi phone app control compatible
• Ice fireglass media (6 lbs) included; micro mesh screen for a clean front face
• Direct vent 5"/8" system; reducible to 4"/7" — zero rear clearance required
• Compatible with Montigo Cool Wall Advantage kit HDKPD36 and sidewall kits HDKSD / HDKSVD
• Distinction series: compatible with adjustable trim kits and optional ash or Tuscan fluted liners
• Non-combustible framing required; 4½-inch side clearances