Sierra Flame is a Canadian hearth brand powered by Amantii, built around a focused lineup of direct vent gas fireplaces that prioritize clean architectural integration over broad category coverage. Every sierra flame gas fireplace in the active catalog uses a fully self-contained firebox that eliminates the gap, louvre, and safety screen found on most gas units. The wall surface above the unit can be finished the same as any adjacent wall, with no accommodation required for heat management at the top of the opening. The lineup runs from entry-level 36" direct vent linear models at $2,999 to a 4-sided, 360-degree see-through unit at $10,999, with see-through, peninsula, and outdoor formats in between. This guide covers each format and the specific models available at The Fireplace USA.
Most gas fireplaces require a gap above the front glass panel where heat can escape from the firebox cavity before it reaches the wall surface. This gap is usually covered by a louvre trim piece or left as a visible break in the wall finish. Sierra Flame's firebox system is fully self-contained: the heat generated in the cavity is managed through the direct vent system rather than through an opening at the top of the unit. No gap above the glass means the wall can be finished in wood, tile, stone, or drywall right up to the edge of the unit.
This is the technical basis for the Vienna series holding condo-rated certification in many jurisdictions. Multi-unit residential buildings frequently have combustible clearance requirements and heat management standards that prevent standard gas fireplaces from being legally installed. The Vienna's contained firebox removes the main barrier to compliance in those buildings, though specific approval always requires confirmation with a licensed installer and the building authority.
The same system removes the safety screen from the front of the glass. There is no mesh guard or visible safety frame around the viewing area. The glass (single-pane on single-sided models, multi-pane on see-through and peninsula formats) is the only separation between the flame and the room. This produces a direct, uninterrupted flame presentation that is the core design goal of the brand.
Our Top Pick for Condos: Sierra Flame Vienna Linear Gas Fireplace
The lineup divides into four installation formats based on how the flame is presented and where the unit is positioned in the room.
Single-sided linear (Newcomb 36, Thompson 36, Bennett 45, Vienna 40/50/60): The firebox faces one direction, installs into a framed wall cavity, and vents to the exterior through direct vent termination. This is the most common installation scenario and works in living rooms, bedrooms, and open-plan spaces with an accessible exterior wall. The Newcomb and Thompson are the entry-level options at 36"; both include electronic ignition. The Thompson Deluxe includes a log media set rather than fire glass. The Bennett steps up to 45" with a 7-day programmable thermostat remote and a 9-piece rock media set. The Vienna is the premium tier: available in three widths, with the cleanest finish and the condo approval.
See-through (Palisade 36, Emerson 48 Slim): These units have glass on two opposite faces and burn through both simultaneously. The Palisade 36 is the accessible option at $4,299 for the Standard and $4,799 for the Deluxe, which adds a modulating valve and fan kit. The Emerson 48 Slim is a longer, low-profile see-through with a 26,000 BTU linear burner and a 7-stage modulating valve. Both formats work on room-divider walls, pass-through openings between a kitchen and dining area, or anywhere two spaces share a single fireplace opening.
Peninsula / 3-sided (Toscana 38, 48, 58): The Toscana presents flames on three sides simultaneously, with glass on the front and both flanks. This format is used when the fireplace sits away from a perimeter wall and extends into the room, making it visible from multiple directions. Available in 38" ($7,799), 48" ($10,599), and 58" ($11,699). It uses the same no-gap, screen-free firebox as the single-sided models.
Four-sided / 360-degree (Lyon 48): The Lyon has glass on all four sides, producing a 360-degree flame view. It is designed for installations where the fireplace functions as a freestanding architectural element rather than a wall feature, visible from every direction. At $10,999, it is the most specialized unit in the lineup and one of the few 4-sided residential gas fireplaces available in this price range.
Built for Architectural Integration: Sierra Flame Vienna in a Contemporary Styled Space
Among the gas fireplace brands available at The Fireplace USA, Sierra Flame occupies a specific position: clean-face direct vent linear units at mid-to-premium prices, with multi-viewing configurations that most brands do not offer at this price point. Majestic, Empire, and Superior all produce direct vent gas fireplaces, but most of their entry and mid-level models include a louvre or require the standard heat gap that Sierra Flame eliminates at every tier.
The condo-rated certification on the Vienna is a genuine practical differentiator for buyers in multi-unit buildings or jurisdictions with specific combustible clearance requirements. Most gas fireplace brands do not specifically market or certify products for this installation context at comparable prices.
The trade-offs are real. The Sierra Flame lineup does not include traditional-style gas fireplaces with a conventional hearth shape. There are no B-vent options and no wood-burning units. Every fireplace in the range uses a linear or peninsula format, so buyers who want a traditional flame presentation will need to look at Majestic or Empire. The direct vent requirement also means an exterior termination is needed, which rules out some apartment installations even if the building allows gas fireplaces in principle.
On BTU output: the Newcomb 36 is rated at 21,000 BTU and the Emerson 48 Slim at 26,000 BTU, which is mid-range for direct vent linear units in this size class. The Toscana and Lyon do not publish detailed BTU figures in the standard product descriptions; buyers with specific heating requirements should confirm output specifications with the installer before purchasing.
Newcomb 36 ($2,999 / Deluxe $3,499). The lowest-priced entry into the Sierra Flame lineup. 36" wide, 21,000 BTU, electronic ignition, black fire glass and 3-piece rock media. The Deluxe adds a modulating valve for variable flame height and a blower fan for heat circulation. A good choice for smaller living rooms and bedrooms where the clean-face finish matters and the budget is constrained.
Shop the Sierra Flame Newcomb 36
Bennett 45 ($4,549). The 45" mid-range linear. Includes a 7-day programmable thermostat remote, variable flame controls, and a 9-piece rock media set. Well-suited to mid-size living rooms where a wider flame presentation adds visual impact without reaching the price point of the Vienna series.
Shop the Sierra Flame Bennett 45
Palisade 36 Deluxe ($4,799). The entry-level see-through. 36" wide, fire glass and stone media, modulating valve, fan kit. Works on room-divider walls or any installation where the fireplace is visible from two sides of the same opening.
Shop the Sierra Flame Palisade 36 Deluxe
Vienna (from $6,399 for 40"). The flagship single-sided unit. No gap, no louvres, no screen, condo-rated in many jurisdictions. Available in 40" ($6,399), 50" ($8,299), and 60" ($9,499) in both natural gas and liquid propane configurations.
Toscana (from $7,799 for 38"). The 3-sided peninsula unit. Three-direction flame visibility, no screens, fully contained firebox. Available in 38" ($7,799), 48" ($10,599), and 58" ($11,699).
Lyon 48 ($10,999). The 4-sided, 360-degree unit. Glass on all sides, clean-face, no screens. For spaces where the fireplace is the architectural centerpiece rather than a wall accent.
Also available for outdoor installations: the Sierra Flame Tahoe 45 outdoor vent-free linear burner ($4,499), with a 40,500 BTU stainless steel pan burner and electronic ignition.
Browse the full Sierra Flame collection at The Fireplace USA
The Vienna series is specifically designed and marketed as condo-rated. The fully contained firebox removes the requirement for a heat gap above the unit, which is one of the primary barriers to gas fireplace approval in multi-unit residential buildings. Approval still depends on your local building code, strata requirements, and the assessment of a certified gas installer, so confirm the specific situation before purchasing.
Yes. All direct vent gas fireplaces in the lineup must be installed by a certified gas technician. The no-gap design simplifies the framing and finishing requirements compared to most gas fireplaces, but the gas line connection, direct vent termination, and ignition system require a licensed professional regardless of model.
Most models include reflective black fire glass as the standard media. Several models also include a rock or pebble set. The Thompson 36 Deluxe comes with a log media set instead. The Toscana and Lyon can be configured with different media options depending on the specific variant; check the product listing for what is included versus available as an accessory.
The Deluxe tier on models like the Newcomb and Palisade adds a modulating valve, which allows the flame height to be adjusted across a range rather than just on or off. The Deluxe typically also includes a blower fan for improved heat distribution. If variable flame control is a priority for your installation, the Deluxe configuration is worth the additional cost.
Most models are available in both natural gas and liquid propane configurations at the same price. Specify the fuel type at the time of purchase. Your gas technician will need to install the correct orifice and set the appropriate gas pressure during installation. Switching fuel types after installation requires a technician to perform the conversion.
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