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Masonry Fireplace Kits with Patented Engineering for Optimal Performance


FireRock manufactures the most advanced prefabricated masonry fireplace system available and costs 50-70% less than traditionally constructed site-built fireplaces. Using patented engineering, experts designed our fireplaces to draw efficiently and maximize heat reflection. Leading third party agencies test and list our fireplaces under applicable standards, such as UL 127. We’ve done all the work to provide the best masonry fireplace solution: high performing, safe, and affordable. Plus it comes with a 20 year warranty.

FireRock Advantages over Competitors:

  • Better heat reflection because of our angled back wall

  • Safer product that is three times stronger (over 3,000 psi compared to >1,000 of leading competitor)

  • Superior performance due to 10% larger masonry flue and unique radius lintel feature

  • Easier to plan because fireplace sizes represent accurate and true finished openings

  • 100% American made


FireRock manufactures indoor masonry fireplaces in a variety of sizes and styles. All of our fireplace kits are UL-127 and ANSI Z21.60 listed, approved to burn solid fuel (wood or coal) or gas, and can be used Indoors or Outdoors. Both masonry and metal chimney options are available allowing you flexibility when it comes to the finished weight of your system. We’ve done all the work to provide the best masonry fireplace solution: high performing, safe, and affordable.

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 42" 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

LiteRock Fireplace

LiteRock is a lightweight fireplace system that may be installed directly on a combustible surface, typically without additional structural support. The components of the LiteRock system include a FireRock fireplace, lightweight metal chimney, and a metal riser kit to elevate the firebox off of the combustible surface.

It is important to understand that “LiteRock” is an installation method, not a completely different kind of firebox. The firebox itself is exactly the same as one used in a standard installation method. The LiteRock System is simply an installation method that allows the system to be installed onto a combustible floor.


LiteRock Elements

Manufactured and provided by FireRock, the LiteRock riser is available in 3 sizes: 30”, 36”, and 42”. This allows the LiteRock installation method to be an option for any Conventional, Rumford, or See-Thru fireboxes up to 42” inches in size. The Literock system is not approved for any sizes larger than 42”.

The LiteRock fireplace system is different from the standard installation because it does not require the 4”-6” concrete slab footing.* While the structural components, mix design, and style of the firebox itself are identical to our standard product offering, a LiteRock is paired with an 8” metal riser and a lightweight metal chimney flue. The metal flue drastically decreases the chimney weight that is typically seen with a standard masonry flue. The 8” metal riser is installed underneath the standard baseplate and provides the necessary airspace clearance from the combustible floor system to the firebox.

Vent Free Fireplace

A Vent-Free fireplace provides great atmosphere to any home, with less hassle. This gas burning fireplace does not require any chimney or ventilation, so it weighs significantly less than comparable wood burning fireplaces - while still providing a true masonry look. Due to the no chimney requirement, the Vent-Free produces less heat loss and is one of our most versatile models (can be installed in nearly any space, but requires special codes for bedrooms). The FireRock Vent Free Gas Fireplace has a zero inch clearance, so the firebox can be installed directly on a wooden or other combustible floor, making it ideal for remodeling projects.


Vent-Free Lite

The Vent-Free Lite gas fireplace is a lightweight option of our indoor Vent-Free model that also provides a straight back wall configuration. A shallower firebox allows for lighter components and easier masonic work. 


  • Available sizes: 30", 36", 42" and 48"

  • Allows for a true masonry finish without a chimney

  • Can be installed directly on wooden floor

  • Use only with unvented decorative gas logs that comply with ANSI Z21.11.2

  • Ideal for new construction or remodeling projects

  • Vent-free fireboxes include Conventional and See-Through

  • Lightweight firebox option also available with straight back configuration - ask to learn more!

  • Clearance to combustibles: 0" around sides and back; 3.5" on top

  • Check your local building codes to ensure that a vent-free firebox is approved for your project, especially if being used in a bedroom

Rumford Fireplace

The Rumford design has been around for centuries and is a classic hallmark of Victorian architecture. Characterized by a straight back wall and a taller opening, the Rumford can support larger fires than other fireplace models. By incorporating a radius lintel and larger chimney opening, the FireRock Rumford offers the elegance of a Victorian fireplace without the draw problems that plagued the fireplaces of the 1800s. This style of fireplace is ideal for homes with high ceilings in order to provide a more to-scale, dramatic look. The Rumford model accommodates FireRock masonry or a UL 103 metal chimney system. A variety of firebrick patterns are available to complete your FireRock Rumford Fireplace.

  • Available sizes: 30", 36", 42" and 48"

  • Taller opening with straight-back wall

  • Compliances: Tested and listed under UL-127 and ANSI 221.60, and are further supported by ICC ESR-2599

  • Can be installed on a combustible floor using LiteRock installation method (30", 36" and 42" only)

  • Accommodates FireRock masonry or approved metal chimney system

  • Clearance to combustibles: 1" around firebox unit and smoke chamber

See-Through Fireplace

Add the warmth and beauty of a prefabricated masonry fireplace to two rooms simultaneously with the FireRock See-Through Fireplace. This see-through model can provide the ambiance of a masonry fireplace into an outdoor and indoor living area within any exterior or interior wall. This model saves you vital space when planning your next home project with the use of only one flue for both fireplaces. Like other FireRock models, the See-Through Fireplace is approved to burn wood or gas fuel, accommodating a FireRock masonry or approved metal chimney system. FireRock is one of the only custom home building materials companies that provides a true 48" Pre-Engineered See-Through Fireplace option for your home. View our indoor see-through masonry fireplace construction details below. 

  • Top-seal damper required for See-Through model

  • Available in 30", 36", 42", and 48" sizes

  • Vent-Free option available for this model

  • Approved for in-field modifications to firebox - choose between angled interior or straight side walls

  • Can be installed on a combustible subfloor using our LiteRock Installation Method (up to 42")

  • Outside air source is recommended to be utilized with this product to ensure adequate source of combustion and ventilation air

  • Any UL-103 compliant chimney may be used to vent a FireRock See‐Through fireplace

  • FireRock recommends Simpson Dura Vent Dura Chimney II for venting

  • To ensure a UL‐127 compliant installation and to reduce the risk of smoke spillage, a set of glass or ceramic fireplace enclosure doors MUST be installed on one or both sides of the fireplace.

B-Vent Fireplace

Our B-Vent fireplace is an efficient model that is primarily meant to be used in bedrooms (due to the safety concerns with carbon monoxide emissions). The B-Vent model offers an automated safety shut off valve - ensuring your fire does not burn too long or too hot. B-Vent fireplaces must be installed through the home and terminate above the roofline. They use room air for combustion, and all combustion fumes are vented outside your home. This model is a gas-only fireplace option which requires a special double-walled 10" metal chimney pipe (purchased separately). The customized chimney pipe allows for higher reflection similar to a dryer, and stays hotter to draw gases out more quickly. The B-Vent fireplace also requires an accessory kit which FireRock stocks, and is our only model that we stock gas logs for. This masonry fireplace model can be installed directly onto a combustible subfloor.

  • Available sizes: 30", 36", 42", 48"

  • Design: Allows for a true masonry, gas-only fireplace with specialized 10" diameter, double wall B-Venting system for exhaust flue gases

  • Compliances: UL 127, ANSI Z21.50, wind load, seismic testing, ICC report issued

  • Applications: Can be installed directly on a wooden or other combustible floor without a riser kit

  • Check local building codes for restrictions, specifically in bedrooms

  • Requirements: Use only with vented decorative gas logs that comply with ANSI Z21.11.2

  • Clearance to Combustibles: 0" to floor, 1" to sides and back of firebox and smoke chamber 

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A fireplace is the perfect centerpiece to incorporate when designing a comfortable outdoor space. FireRock offers an all-in-one outdoor fireplace kit that is easily assembled (in sizes 30”, 36” and 42”) and far more affordable than scratch built alternatives. FireRock’s outdoor units are designed to be freestanding, meaning they cannot be built into a wood framed structure.

Conventional Fireplace

An outdoor fireplace is the perfect centerpiece to incorporate when designing an outdoor space that features comfort and style. It will bring life to the space and guests will love to gather around it.

FireRock's conventional outdoor fireplace system is expertly designed to provide a full masonry system that is easy to install. With 3 sizes available, our conventional outdoor firebox has a straight back wall and straight opening for a clean look. 

  • Available sizes: 30", 36" and 42"

  • Traditional-style firebox with straight back wall

  • Fireplace Kit includes 2-3 feet masonry chimney

  • Both firebox and chimney system components are delivered on a single pallet

  • Compliances: UL 127

  • Requirements: This product is designed to be freestanding - not built into a wood-framed structure

  • In the event that additional dimension is required, build out with concrete masonry units (CMUs) or metal framing material

Arched Front Fireplace

The Arched Front Outdoor Fireplace is FireRock's most popular outdoor model with a classic Tuscan-style arch front and straight back wall. Choosing the best outdoor fireplace can be tricky, but it mostly comes down to personal preference. The outdoor fireplace kits from FireRock allow for simple assembly of our prefabricated masonry fireplaces — which are every bit as classic and elegant as their scratch built counterparts, for a fraction of the cost. The addition of an outdoor fireplace will improve your outdoor living space, increase your home’s value, and most of all, provide hours of enjoyment for your family and friends. 


This model provides an arch detail that can be veneered with man-made or sliced stone. This design feature is becoming more and more popular among homeowners for its classic look and warmth.

  • Available sizes: 30', 36" and 42"

  • Designed to burn wood, gas or coal

  • Fireplace Kit includes 2-3 feet masonry chimney

  • Both firebox (with arched front masonry piece) and chimney system components are delivered on a single pallet

  • Requirements: This fireplace is not designed to sit directly on combustible materials or be built into a wood framed structure 

  • There is no airspace or clearance distance to CMUs or metal framing material required

Round Fire Pit

For that “around the campfire” experience choose the FireRock Fire Pit. Our Fire Ring is a low maintenance focal point that can enhance any outdoor living area. This product may be installed as a wood burning installation or may be installed with a gas burner. Riser blocks are available to customize the height of the fire area for your outdoor space. The masonic stone work of our Fire Pit option gives your fire feature long lasting quality, while simultaneously ensuring safety. Like all FireRock products, the Fire Ring can be veneered with the masonry material of your choice. With the right design, you can even outfit the structure with a grilling grate.

  • Available sizes: 44"

  • Modular design with no single component over 60 lbs.

  • Riser kit(s) available for increased height - one riser provides additional 6"

Square Fire Pit

If square fits your outdoor design better than round, the Fire Pit Square is the right solution. The Fire Pit Square has the added advantage of being available in a range of sizes from three feet to six feet square and the height may be customized as well.

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