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Conventional Indoor Fireplace

FireRock’s best selling indoor fireplace kit with an optional angled back wall for a more traditional look and better heat reflection.

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  • About
  • Specifications
  • About
  • Specifications
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Raw Indoor Conventional FireplaceIndoor Conventional Fireplace

The Conventional fireplace is our most popular and best-selling indoor model. The firebox features an expertly-engineered angled back wall that provides better heat reflection as well as a more traditional look. In addition, as with our other firebox models, it has a radius lintel and a 15" flue (compared to the leading competitor's 13") for improved smoke draw performance 

Our Conventional model is compatible with either masonry chimneys or UL 103 metal chimney systems.

  • Traditional sizes: 30", 36", 42" and 48"
  • Oversized models available in 60" and 72" openings with dual chimney systems
  • Traditional-style firebox with angled back wall (straight-back wall option also available)
  • Compliances: UL-127, ANSI Z21.60, wind load, seismic testing, ICC report issued
  • Accommodates FireRock masonry fireplace or approved metal chimney system
  • Can be installed on a combustible floor using LiteRock installation method (up to 48" model)
  • Oversized models available in 60" and 72" openings with dual chimney systems
  • 1" clearance to combustibles around firebox unit and smoke chamber
  • Easy access to the conventional model and size you need with our national network of distributors

Design & Customization

All FireRock indoor models can be used indoors or outdoors and can accommodate practically any veneer, mantle or surround. Popular indoor options include marble, ledgestone, wood, brick and stone veneer. Popular outdoor options include man-made stone or sliced natural stone. For ideas and inspiration on how to customize your surround, click here.

Additional customization comes with your firebrick selection. FireRock firebrick comes in two colors - red and buff - and two thicknesses to accommodate a variety of firebrick patterns to finish out your personal taste.


FireRock Conventional Model Dimensions

All measurements listed are based on dry stack units before firebrick is installed. Dimensions are nominal and are given for design and framing reference only. Please consult installation manual for all details and requirements before making final design layout decisions.

Model Width Height Depth Damper Weight
Opening Firebox
Overall Opening Firebox Smoke
Overall Firebox Overall
30" Conventional / CA Conventional 32.5" 22" 38" 33.75" 37.5" 22.375" 59.875" 22.5" 28.5" 24" 1,800 lbs
36" Conventional / CA Conventional 38.5" 28" 44" 33.75" 37.5" 31.5625" 69.0625" 22.5" 28.5" 30" 2,150 lbs
42" Conventional / CA Conventional 44.5" 34" 50" 33.75" 37.5" 31.5625" 69.0625" 22.5" 28.5" 36" 2,410 lbs
48" Conventional / CA Conventional 50.5" 40" 56" 33.75" 37.5" 40.75" 78.25" 22.5" 28.5" 42" 2,900 lbs
60" Oversized Conventional 62.5" 52" 68" 33.75" 37.5" 31.5625" 69.0625" 22.5" 28.5" 54" 3,000 lbs
72" Oversized Conventional 74.5" 64" 80" 33.75" 37.5" 31.5625" 69.0625" 22.5" 28.5" 2 Top Seal 3,200 lbs
Chimney Diameter

Masonry Chimney: 15"
UL 103 Metal Chimney: 12" (30" model only) or 14"

*Note: 60" and 72" models require 2 flues

Total Installed Height Minimum: 15'
Maximum: 65'

Clearance to Combustibles

Opening to Sidewall 28"
Opening to Combustible Trim 12"
Opening to Mantle with 8" Depth 16"
Noncombustible Hearth Extension 20" in front; 8" each side *
Firebox & Smoke Chamber to Combustibles or Framing 1"
Smoke Chamber (Front Wall & Top) to Wood Framing 1"
* The 60” and 72” Oversized Conventional models require extra floor protection in addition to the 20” full depth hearth extension listed. The amount of additional floor protection is dependent upon the opening height of the firebox, and must be constructed of a noncombustible material with a minimum R-value of 0.30. See Oversized Installation Manual for more information.

Approvals & Certifications (30" - 48")

UL 127 approved and certified for indoor or outdoor use

ICC tested and certified properties: wind load, seismic, and fire resistances

Compliant with 2012 and 2015 International Codes: Building (IBC), Residential (IRC), Mechanical (IMC), and Fuel Gas (IFGC)

Approved for use with gas-starters and outside air kits

Not sure what direction you want to take with your next project? Contact us to learn from our experts.

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