42" & 48" fireplace offerings

The two most-requested opening widths in the Isokern lineup, side by side: every firebox and patio kit available at 42 or 48 inches, with the specifications and documents your build needs.

Fireboxes

Modular volcanic-pumice fireboxes for wood or gas, indoors or out.

Standard 42" Firebox

Standard series

The Standard 42" is an Isokern modular masonry firebox built from Icelandic volcanic pumice — the first Isokern system introduced to the United States. It burns wood, natural gas, or liquid propane, installs indoors or out, and accepts any veneer finish including brick, stone, stucco, and tile.

Model
80S42
Series
Isokern Standard
Nominal Width
42"
Fuel
Wood, natural gas, or liquid propane
Construction
Modular Icelandic volcanic pumice
Venting
DM54 or EM40 modular flue (natural draft)
Application
Indoor or outdoor; finish with any veneer

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Magnum 42" Firebox

Magnum series

The Magnum 42" is Isokern's large-format modular masonry firebox, sized for dramatic openings in custom homes, hotel lobbies, and restaurants. Modular volcanic pumice construction keeps it light enough for standard framing while opening heights reach 38" tall and widths up to 72".

Model
82042
Series
Isokern Magnum
Nominal Width
42"
Fuel
Wood, natural gas, or liquid propane
Construction
Modular Icelandic volcanic pumice
Venting
DM54 dual-module flue (natural draft)
Application
Indoor or outdoor; finish with any veneer
See-Thru Option
82042ST

Documents

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Magnum 48" Firebox

Magnum series

The Magnum 48" is Isokern's large-format modular masonry firebox, sized for dramatic openings in custom homes, hotel lobbies, and restaurants. Modular volcanic pumice construction keeps it light enough for standard framing while opening heights reach 38" tall and widths up to 72".

Model
82048
Series
Isokern Magnum
Nominal Width
48"
Fuel
Wood, natural gas, or liquid propane
Construction
Modular Icelandic volcanic pumice
Venting
DM54 dual-module flue (natural draft)
Application
Indoor or outdoor; finish with any veneer
See-Thru Option
82048ST

Documents

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Vent-Free 42" Firebox

Vent-Free series

The Vent-Free 42" is an Isokern gas firebox that needs no chimney or flue, so it tucks into spaces a vented fireplace never could. Large finished openings and a see-thru option make it a flexible heating feature for multi-family projects, new construction, remodels, and outdoor rooms.

Model
81042
Series
Isokern Vent-Free
Nominal Width
42"
Fuel
Natural gas or liquid propane
Construction
Modular Icelandic volcanic pumice
Venting
None required (vent-free)
Application
Indoor or outdoor; finish with any veneer
See-Thru Option
81042ST

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Patio fireplace kits

Pre-engineered outdoor fireplaces, 8 feet tall, in widths from 36" to 48".

Standard Patio Fireplace Kit

Standard series

The Standard Patio Fireplace Kit packages an Isokern Standard firebox, chimney, and components into a pre-engineered 8-foot-tall outdoor fireplace that assembles in a fraction of the time of scratch-built masonry. Finish it in brick, stone, stucco, or tile to anchor an outdoor room that gets used all year.

Series
Isokern Standard
Available Widths
36", 42", 46", and 48"
Overall Height
8'0"
Fuel
Wood, natural gas, or liquid propane
Construction
Modular Icelandic volcanic pumice
Application
Outdoor; finish with any veneer

Documents

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Magnum Patio Fireplace Kit

Magnum series

The Magnum Patio Fireplace Kit packages an Isokern Magnum firebox, chimney, and components into a pre-engineered 8-foot-tall outdoor fireplace that assembles in a fraction of the time of scratch-built masonry. Finish it in brick, stone, stucco, or tile to anchor an outdoor room that gets used all year.

Series
Isokern Magnum
Available Widths
36", 42", 46", and 48"
Overall Height
8'0"
Fuel
Wood, natural gas, or liquid propane
Construction
Modular Icelandic volcanic pumice
Application
Outdoor; finish with any veneer

Documents

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Planning a 42" or 48" fireplace?

Talk through venting, veneers, and lead times with the Trinity Brick team — we'll help you spec the right Isokern system.

Contact usBrowse all Isokern