Volcanic Pumice · Modular Masonry · All Fuel
Isokern Fireplaces
Isokern is the world's leading modular masonry fireplace system — built from Icelandic volcanic pumice for superior strength, insulation, and longevity. Available in wood burning and gas burning configurations. If you want a real masonry fireplace that installs faster and performs better, Isokern is the answer.
Volcanic Pumice
Isokern is made from Icelandic volcanic pumice — naturally lightweight, extremely strong, and a superior thermal insulator compared to concrete block or common brick.
Modular System
Each Isokern system is pre-engineered and modular, so installation is faster and more consistent than traditional stick-built masonry — without sacrificing any quality.
UL Listed
Every Isokern system is UL-listed and meets all building codes. Your inspector will have no surprises.
Proven for 50+ Years
Isokern has been manufactured in Europe since the 1950s and installed in homes worldwide. Proven, warrantied, and built to last a lifetime.
Fuel Type
Wood Burning Fireplaces
The original Isokern experience — real wood, real fire, real masonry. Available in three series to match any firebox size and room scale.
Modular Pumice · All Fuel · Sizes 36 · 42 · 46
Isokern Standard — Wood Burning
The first Isokern modular fireplace introduced in the United States. Modular volcanic pumice construction lets you build a fireplace as unique as your home — faster than traditional masonry, with superior heat retention. Outdoor installations can be finished with brick, stone, stucco, or tile.
- Volcanic pumice blocks — lighter and stronger than concrete
- Modular system installs faster than stick-built masonry
- Superior heat retention and insulation
- UL-listed — meets all building codes
- Indoor or outdoor installation
- Finish with brick, stone, stucco, or tile
Tall Firebox · Angled Sides · Maximum Radiant Heat
Isokern Rumford — Wood Burning
The Isokern Rumford replicates the classic Rumford fireplace design — tall, shallow firebox with angled covings — proven for over 200 years to deliver maximum radiant heat into the room. Combined with volcanic pumice construction, it's the most efficient wood-burning fireplace you can build.
- Classic Rumford proportions — tall, shallow firebox
- Angled covings direct maximum radiant heat into the room
- Volcanic pumice for superior insulation
- UL-listed system
- Ideal for living rooms and great rooms
Large Format · Estate & Commercial · Bold Presence
Isokern Magnum — Wood Burning
The Isokern Magnum is built for large-scale residential and commercial installations where a dramatic, oversized firebox commands the space. Same volcanic pumice construction as the Standard, scaled up for grand entryways, great halls, and commercial lobbies.
- Oversized firebox for dramatic visual impact
- Volcanic pumice construction throughout
- UL-listed system
- Ideal for estate homes, hotels, and commercial spaces
- Custom facing options available
Fuel Type
Gas Burning Fireplaces
All the beauty of real masonry with the convenience of gas. Natural gas or liquid propane, in Standard, Magnum, and modern linear EPSeries configurations.
Natural Gas · Liquid Propane · Sizes 36 · 42 · 46
Isokern Standard — Gas Burning
The same trusted Standard Series pumice firebox system, configured for natural gas or liquid propane. Enjoy the look and feel of a real masonry fireplace with the convenience of gas — one switch and a beautiful fire, with no wood hauling or ash cleanup.
- Natural gas or liquid propane fuel
- Volcanic pumice construction for superior heat retention
- Modular installation — faster than traditional masonry
- UL-listed system
- Indoor or outdoor installation
- Finish with any veneer: brick, stone, stucco, or tile
Large Format · Gas · Estate & Commercial
Isokern Magnum — Gas Burning
The Magnum's large-format firebox in a gas-burning configuration. Ideal for grand spaces where you want the mass and presence of real masonry with the reliability and convenience of gas.
- Natural gas or liquid propane fuel
- Oversized firebox for dramatic visual impact
- Volcanic pumice construction throughout
- UL-listed system
- Ideal for estate homes, hotels, and commercial spaces
Linear · Modern · Gas Burning
Isokern EPSeries — Linear Gas
The EPSeries brings Isokern's proven pumice system into a contemporary linear format. A sleek, wide-format gas fireplace with a modern black insert — perfect for transitional and contemporary homes that want real masonry behind a clean, linear flame.
- Linear gas fireplace format
- Natural gas or liquid propane
- Volcanic pumice surround construction
- Modern black glass-front insert
- UL-listed system
Building New or Replacing an Old Firebox?
Our team can walk you through which Isokern system fits your space, budget, and fuel preference. We handle everything from permits to the finished facing.
Begin With Clarity
Plan your fireplace project with confidence.
Share the project details you have now and our team will help shape the right mantel, fireplace, installation path, and starting range.
Request Project GuidanceDesign Consultation
See the materials, scale, and flame in person.
Meet with a hearth consultant to align the mantel, appliance, finish, clearances, and installation plan around the room you want to create.
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