Masonry fireplaces are built on site from brick, block or stone, and a masonry firebox or insert is the part that actually holds the fire. This collection covers masonry-compatible wood burning units and vent-free gas fireboxes, including options from Superior designed to sit in a built masonry enclosure, along with wood and gas inserts that upgrade an existing opening. Use this page if you have a traditional chimney that is drawing poorly, leaking heat, or simply needs a modern, more efficient fire. Compare opening size, liner requirements, fuel and whether the unit is meant for new construction or retrofit.

15 products
  • Buck Stove 22" Model 21ZC Zero Clearance Wood Burning Stove Insert with Door 28,900 BTU Buck Stove 22" Model 21ZC Zero Clearance Wood Burning Stove Insert with Door 28,900 BTU
    Buck Stove 22" Model 21ZC Zero Clearance Wood Burning Stove Insert with Door 28,900 BTU
    Buck Stove

    Buck Stove 22" Model 21ZC Zero Clearance Wood Burning Stove Insert with Door 28,900 BTU

    Zero Clearance Wood Stove Insert · Up to 28,900 BTU · Heats 800-1,800 sq ft Fireplace-free wood heat for cabins and small homes The Buck Stove Model 21ZC is a...
    $3,006.00
    $3,006.00

    28.9k BTUWood22 in viewUp to 1,800 sq ft

    Ready to ship free US delivery

  • Buck Stove 22" Model 74 Non-Catalytic Wood Burning Stove with Door 52,400 BTU Buck Stove 22" Model 74 Non-Catalytic Wood Burning Stove with Door 52,400 BTU
    Buck Stove 22" Model 74 Non-Catalytic Wood Burning Stove with Door 52,400 BTU
    Buck Stove

    Buck Stove 22" Model 74 Non-Catalytic Wood Burning Stove with Door 52,400 BTU

    Non-Catalytic Wood Stove · Up to 52,400 BTU · Heats up to 2,600 sq ft Heavy-duty wood heat with no catalytic combustor to replace The Buck Stove Model 74 is...
    $2,694.00
    $2,694.00

    52.4k BTUWood22 in viewUp to 2,600 sq ft

    Ready to ship free US delivery

  • Buck Stove 30" Model 81 Non-Catalytic Wood Burning Stove Insert with Door and Blower 59,500 BTU Buck Stove 30" Model 81 Non-Catalytic Wood Burning Stove Insert with Door and Blower 59,500 BTU
    Buck Stove 30" Model 81 Non-Catalytic Wood Burning Stove Insert with Door and Blower 59,500 BTU
    Buck Stove

    Buck Stove 30" Model 81 Non-Catalytic Wood Burning Stove Insert with Door and Blower 59,500 BTU

    Non-Catalytic Wood Stove · Up to 59,500 BTU · Heats 1,600-2,700 sq ft A big-home wood stove with a built-in blower and ash pan The Buck Stove Model 81 is...
    $3,058.00
    $3,058.00

    59.5k BTUWood30 in viewUp to 2,700 sq ft

    Ready to ship free US delivery

  • Buck Stove 32" Model 384 Vent Free Gas Stove Insert 33,000 BTU Buck Stove 32" Model 384 Vent Free Gas Stove Insert 33,000 BTU
    Buck Stove 32" Model 384 Vent Free Gas Stove Insert 33,000 BTU
    Buck Stove

    Buck Stove 32" Model 384 Vent Free Gas Stove Insert 33,000 BTU

    Vent Free Gas Stove · 33,000 BTU · 32" Wide Real flame without a chimney, with a built-in thermostat blower The Buck Stove Model 384 is a vent free gas...
    $1,899.00
    $1,899.00

    33k BTUNatural Gas / PropaneVent-Free32 in view

    Ready to ship free US delivery

  • Buck Stove 34" Model 34 Contemporary Vent Free Gas Stove Insert with Blower 33,000 BTU Buck Stove 34" Model 34 Contemporary Vent Free Gas Stove Insert with Blower 33,000 BTU
    Buck Stove 34" Model 34 Contemporary Vent Free Gas Stove Insert with Blower 33,000 BTU
    Buck Stove

    Buck Stove 34" Model 34 Contemporary Vent Free Gas Stove Insert with Blower 33,000 BTU

    Vent Free Gas Stove · 33,000 BTU · 34" Wide Contemporary vent free flames with an adjustable trim kit The Buck Stove Model 34 Contemporary is a vent free gas...
    $1,899.00
    $1,899.00

    33k BTUNatural Gas / PropaneVent-Free34 in view

    Ready to ship free US delivery

  • Buck Stove 34" Model 91 Catalytic Wood Stove Insert With Door and Blower 62,745 BTU Buck Stove 34" Model 91 Catalytic Wood Stove Insert With Door and Blower 62,745 BTU
    Buck Stove 34" Model 91 Catalytic Wood Stove Insert With Door and Blower 62,745 BTU
    Buck Stove

    Buck Stove 34" Model 91 Catalytic Wood Stove Insert With Door and Blower 62,745 BTU

    Catalytic Wood Stove · Up to 62,745 BTU · Heats up to 3,200 sq ft Flagship catalytic wood heat for big spaces The Buck Stove Model 91 is the brand's...
    $3,602.00
    $3,602.00

    62.7k BTUWood34 in viewUp to 3,200 sq ft

    Ready to ship free US delivery

  • Buck Stove 38" Model 34 Manhattan Vent Free Gas Stove Insert 33,000 BTU Buck Stove 38" Model 34 Manhattan Vent Free Gas Stove Insert 33,000 BTU
    Buck Stove 38" Model 34 Manhattan Vent Free Gas Stove Insert 33,000 BTU
    Buck Stove

    Buck Stove 38" Model 34 Manhattan Vent Free Gas Stove Insert 33,000 BTU

    Vent Free Gas Stove · 33,000 BTU · 38" Wide Black satin and pewter styling for modern rooms The Buck Stove Model 34 Manhattan is the redesigned, contemporary version of...
    $2,031.00
    $2,031.00

    33k BTUNatural Gas / PropaneVent-Free38 in view

    Ready to ship free US delivery

  • Osburn 2000 Wood Burning 28" Insert with Heat Blower 75,000 BTU Osburn 2000 Wood Burning 28" Insert with Heat Blower 75,000 BTU
    Osburn 2000 Wood Burning 28" Insert with Heat Blower 75,000 BTU
    Osburn

    Osburn 2000 Wood Burning 28" Insert with Heat Blower 75,000 BTU

    Wood Burning Insert · 75,000 BTU · 28" Wide EPA 2020 wood insert with a faceplate to cover your masonry opening The Osburn 2000 Insert is a non-catalytic wood-burning insert...
    $2,729.00
    $2,729.00

    75k BTUWoodChimney / Masonry28 in view

    Ready to ship free US delivery

  • Superior VRT3200 Vent-Free Gas Firebox – White Herringbone Refractory Panels 40,000 BTU Superior VRT3200 Vent-Free Gas Firebox – White Herringbone Refractory Panels 40,000 BTU
    Superior VRT3200 Vent-Free Gas Firebox – White Herringbone Refractory Panels 40,000 BTU
    Superior Fireplaces

    Superior VRT3200 Vent-Free Gas Firebox – White Herringbone Refractory Panels 40,000 BTU

    Radiant Vent-Free Firebox · White Herringbone Panels · 32", 36" or 42" The VRT3200 with a white herringbone brick pattern Same tall-opening radiant firebox, different bricks: this VRT3200 is lined...
    $999.00
    $999.00

    40k BTUNatural Gas / PropaneVent-Free32 / 36 / 42 in view

    Ready to ship free US delivery

  • Superior VRT3200 Vent-Free Gas Firebox – White Stacked Refractory Panels 40,000 BTU Superior VRT3200 Vent-Free Gas Firebox – White Stacked Refractory Panels 40,000 BTU
    Superior VRT3200 Vent-Free Gas Firebox – White Stacked Refractory Panels 40,000 BTU
    Superior Fireplaces

    Superior VRT3200 Vent-Free Gas Firebox – White Stacked Refractory Panels 40,000 BTU

    Radiant Vent-Free Firebox · White Stacked Panels · 32", 36" or 42" A tall masonry-style opening in white stacked brick The Superior VRT3200 is a radiant vent-free firebox with a...
    $949.00
    $949.00

    40k BTUNatural Gas / PropaneVent-Free32 / 36 / 42 in view

    Ready to ship free US delivery

  • Superior VRT6000 Vent-Free Gas Masonry Firebox 40,000 BTU Superior VRT6000 Vent-Free Gas Masonry Firebox 40,000 BTU
    Superior VRT6000 Vent-Free Gas Masonry Firebox 40,000 BTU
    Superior Fireplaces

    Superior VRT6000 Vent-Free Gas Masonry Firebox 40,000 BTU

    Vent-Free Gas Masonry Firebox · 36", 42" or 50" · up to 40,000 BTU A masonry-look firebox lined with kiln-fired brick The Superior VRT6000 is built for large custom spaces,...
    $3,149.00
    $3,149.00

    40k BTUNatural Gas / PropaneVent-Free36 / 42 / 50 in view

    Ready to ship free US delivery

  • Superior WCT2000 Traditional Insulated Wood Burning Fireplace Superior WCT2000 Traditional Insulated Wood Burning Fireplace
    Superior WCT2000 Traditional Insulated Wood Burning Fireplace
    Superior Fireplaces

    Superior WCT2000 Traditional Insulated Wood Burning Fireplace

    Insulated Wood-Burning Fireplace · 36" or 42" · Louvered or Radiant A big-box brick opening that burns real wood The Superior WCT2000 is a traditional insulated wood-burning fireplace with an...
    $999.00
    $999.00

    WoodChimney / Masonry36 / 42 in view

    Ready to ship free US delivery

  • Superior WRT3000 Traditional Insulated Wood Burning Fireplace Superior WRT3000 Traditional Insulated Wood Burning Fireplace
    Superior WRT3000 Traditional Insulated Wood Burning Fireplace
    Superior Fireplaces

    Superior WRT3000 Traditional Insulated Wood Burning Fireplace

    Insulated Wood-Burning Fireplace · 36" or 42" · Radiant or Louvered Smooth-faced radiant hearth for a traditional living room The Superior WRT3000 is an insulated wood-burning fireplace with white stacked...
    $1,319.00
    $1,319.00

    WoodChimney / Masonry36 / 42 in view

    Ready to ship free US delivery

  • Superior WRT6000 Traditional Vented Wood Burning Masonry Fireplace Superior WRT6000 Traditional Vented Wood Burning Masonry Fireplace
    Superior WRT6000 Traditional Vented Wood Burning Masonry Fireplace
    Superior Fireplaces

    Superior WRT6000 Traditional Vented Wood Burning Masonry Fireplace

    Wood Burning Masonry Fireplace · Open Hearth · 36 / 42 / 50 in. · Front View A grand open hearth that reads as real masonry The Superior WRT6000 is...
    $3,429.00
    $3,429.00

    WoodChimney / Masonry36 / 42 / 50 in view

    Ready to ship free US delivery

  • Buck Stove 38" Model 74ZC Zero Clearance Non-Catalytic Wood Burning Stove Insert with Door 52,400 btu Buck Stove 38" Model 74ZC Zero Clearance Non-Catalytic Wood Burning Stove Insert with Door 52,400 btu
    Buck Stove 38" Model 74ZC Zero Clearance Non-Catalytic Wood Burning Stove Insert with Door 52,400 btu
    Sold out
    Buck Stove

    Buck Stove 38" Model 74ZC Zero Clearance Non-Catalytic Wood Burning Stove Insert with Door 52,400 btu

    Zero Clearance Wood Stove Insert · Up to 52,400 BTU · Heats up to 2,600 sq ft High-output wood heat that frames into the wall The Buck Stove Model 74ZC...
    $3,708.00
    $3,708.00

    52.4k BTUWood38 in viewUp to 2,600 sq ft

    Sold out

Upgrading a masonry fireplace the right way

Begin with the chimney. An open masonry fireplace sends most of its heat up the flue, so a certified insert with a stainless steel liner is the usual route to better efficiency. Measure the opening width, height, depth and the rear width, because masonry openings are rarely square. Have the flue inspected before installing anything, and confirm that the liner size suits the appliance. If you are building a new masonry firebox, the manufacturer's refractory and clearance requirements decide the design. Always follow local code, and have a qualified installer handle the connection and sign-off.

Can I put a gas insert in a masonry fireplace?

Yes, provided the insert is rated for it and is vented correctly, usually with a liner. A sweep or installer should confirm the existing chimney is sound.

Do I need a liner for a masonry fireplace insert?

In most cases yes. A liner carries exhaust safely, improves draft and reduces creosote risk for wood burning units.