Simplifire Scion Trinity Electric Fireplace Size Guide: 43"-55"

Compare 43" and 55" Scion Trinity 3-sided models to confirm framing cutout, depth, clearances, and 120V power requirements before you buy.

How to measure (60 seconds)

  • Pick your size: 43" (compact) vs 55" (statement focal point).
  • Framing cutout (W×H×D): measure your framed opening and match the “Framing / cutout” values in the fit table.
  • Depth available: confirm at least 11 1/2" framed depth (minimum) for the clean-face cavity.
  • Front clearance: plan for 36" clearance to combustibles from the front.
  • Power plan: minimum 15A, 120V/60Hz circuit required (dedicated preferred).
Clearance note
Quick reference (per manufacturer): Sides 0", Floor 0", Top 0", Back 0", Front 36". Keep furniture, drapes, bedding materials, and all combustibles at least 3 feet from the front.
Go to product page

Fit requirements table (hard constraints)

“Framing / cutout” values below are the minimum framed opening dimensions for a built-in clean-face install. Electrical: minimum 15A, 120V/60Hz circuit required. Heating is supplemental (not a primary heat source).
Size Model (SKU) Viewing area (W×H) Firebox / shell (W×H×D) Framing / cutout (W×H×D) Heat (standard) Heat (optional) Power + breaker Link
43" SF-SCT43-BK 42 1/2" W × 14 3/4" H 42 1/2" W × 22 1/4" H × 11 1/4" D 42 3/4" W × 22 5/8" H × 11 1/2" D (min.) 120V 60Hz, 12.5A, 1500W (supplemental) Minimum 15A, 120V/60Hz circuit required.
Dedicated circuit preferred. If installed in a bathroom, protect with GFI receptacle/circuit.
View on product page
55" SF-SCT55-BK 54 1/16" W × 14 3/4" H 54 1/2" W × 22 1/4" H × 11 1/4" D 54 5/8" W × 22 5/8" H × 11 1/2" D (min.) 120V 60Hz, 12.5A, 1500W (supplemental) Minimum 15A, 120V/60Hz circuit required.
Dedicated circuit preferred. If installed in a bathroom, protect with GFI receptacle/circuit.
View on product page

Installation notes (3-sided clean-face)

The Scion Trinity is designed as a built-in, three-sided clean-face fireplace. Use the notes below to avoid common planning mistakes.
Built-in: frame to the cutout, keep the front clearance
Build your framed opening to the “Framing / cutout” dimensions in the table. Maintain 36" minimum clearance to combustibles from the front. Sides/floor/top/back are zero-clearance.
Why choose the Scion Trinity series
  • Panoramic 3-sided viewing: a dramatic, architectural flame presentation visible from multiple angles.
  • Truly flush finish: clean-face design allows finishing materials to meet the edge for a built-in look.
  • Highly customizable aesthetics: multiple flame colors and ember-bed color options (model dependent) for a tailored look.
  • Realistic media options: premium log set plus crystal/ember media for a high-end presentation.
  • Flexible ambiance: enjoy flames with or without heat for year-round use (heat is supplemental).
Electrical: minimum 15A, 120V/60Hz circuit required. Follow local code and use a qualified electrician if needed.

Size-by-size guidance (recommendations)

The fit table above is the source of truth for framing dimensions. The notes below are shopping guidance to help you choose faster.

43" model

SF-SCT43-BK
Best for: Smaller feature walls, bedrooms, or home offices.
Why: It offers a modern linear aesthetic for spaces where a massive 60"+ unit would be too large. Its compact footprint makes it easy to integrate into standard wall sections while still delivering a premium, built-in three-sided flame presentation.
Viewing area: 42 1/2" W × 14 3/4" H
Framing / cutout: 42 3/4" W × 22 5/8" H × 11 1/2" D (min.)
Firebox / shell: 42 1/2" W × 22 1/4" H × 11 1/4" D

55" model

SF-SCT55-BK
Best for: Living rooms and media walls paired with medium-sized TVs.
Why: This mid-sized model is often the sweet spot for standard living areas. It delivers a wider, more commanding flame presence while maintaining a clean built-in profile—ideal for anchoring a feature wall with a three-sided view.
Viewing area: 54 1/16" W × 14 3/4" H
Framing / cutout: 54 5/8" W × 22 5/8" H × 11 1/2" D (min.)
Firebox / shell: 54 1/2" W × 22 1/4" H × 11 1/4" D

View product page and availability

Check current stock, select a size, and see current pricing on the main product page.
Safety, clearance, and electrical notes are summarized from the SimpliFire SF-SCT43-BK / SF-SCT55-BK owner’s manual. Always follow the manufacturer installation instructions and local electrical code.