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Vintage Fireplace Insert

Victorian Manner Polished Brass Fireplace Insert.
Victorian Manner Polished Brass Fireplace Insert.

Victorian Manner Polished Brass Fireplace Insert.

Located in Edinburgh, GB

A substantial 19th Century Victorian manner polished brass fireplace insert. A fully polished brass outer frame displaying high relief horizontal tendrils set within a raised border.

Category

1950s English Victorian Vintage Fireplace Insert

Materials

Brass

Victorian Style Arched Cast Iron Fireplace Insert
Victorian Style Arched Cast Iron Fireplace Insert

Victorian Style Arched Cast Iron Fireplace Insert

Located in Edinburgh, GB

A large Victorian style cast iron arched fireplace insert with a central high relief cartouche, a generous outer plate, complete with its original bars and ash pan door, topped with ...

Category

1950s English Victorian Vintage Fireplace Insert

Materials

Iron

19th Century Victorian Manner Cast Iron Fireplace insert.
19th Century Victorian Manner Cast Iron Fireplace insert.

19th Century Victorian Manner Cast Iron Fireplace insert.

Located in Edinburgh, GB

A well cast 19th Century Victorian manner cast iron fireplace insert of good form. The large arched opening with good quality casting , a generous fire grate area with arched fire ba...

Category

1980s English Victorian Vintage Fireplace Insert

Materials

Iron

A large 19th Century Manner Polished Fireplace Insert.
A large 19th Century Manner Polished Fireplace Insert.

A large 19th Century Manner Polished Fireplace Insert.

Located in Edinburgh, GB

A large a versatile polished cast iron fireplace insert in the 19th Century Victorian manner.

Category

1950s English Victorian Vintage Fireplace Insert

Materials

Iron

19th Century Victorian Manner Polished Cast Iron Fireplace Insert.
19th Century Victorian Manner Polished Cast Iron Fireplace Insert.

19th Century Victorian Manner Polished Cast Iron Fireplace Insert.

Located in Edinburgh, GB

A 19th Century Victorian manner polished cast iron fireplace insert. A generous outer plate, a splayed interior leading to the burning grate, the three barred fire front with ash pan...

Category

1950s English Victorian Vintage Fireplace Insert

Materials

Iron

19th Century Georgian Style Hob Grate Fireplace Insert
19th Century Georgian Style Hob Grate Fireplace Insert

19th Century Georgian Style Hob Grate Fireplace Insert

Located in Edinburgh, GB

A smart and well balanced 19th century Georgian style hob grate fireplace insert. A large framed outer plate with a central raised embellishment flanked by two tall barley twist spin...

Category

1960s English Georgian Vintage Fireplace Insert

Materials

Iron

19th Century Victorian Manner Arched Cast Iron Fireplace Insert.
19th Century Victorian Manner Arched Cast Iron Fireplace Insert.

19th Century Victorian Manner Arched Cast Iron Fireplace Insert.

Located in Edinburgh, GB

A matching pair of 19th Century Victorian manner cast iron fireplace inserts. A generous outer plate set with an arched high relief border, the three bared arched fire front with ash...

Category

1950s English Victorian Vintage Fireplace Insert

Materials

Iron

Large Early 19th Century Georgian Style Polished Steel Fireplace Insert
Large Early 19th Century Georgian Style Polished Steel Fireplace Insert

Large Early 19th Century Georgian Style Polished Steel Fireplace Insert

Located in Edinburgh, GB

A large fully polished Georgian style steel fireplace insert. A generous plate frame with an applied raised bead, three half spheres to the cross frieze, with the beading terminating...

Category

1940s Scottish Georgian Vintage Fireplace Insert

Materials

Steel

Antique Arts and Crafts Copper and Brass Fireplace Insert  Slips
Antique Arts and Crafts Copper and Brass Fireplace Insert  Slips

Antique Arts and Crafts Copper and Brass Fireplace Insert Slips

Located in Ware, GB

A highly decorative Arts and Crafts fireplace insert, beautifully constructed in hand-hammered copper with domed hood and contrasting brass embellishments with distinctive geometric ...

Category

1960s Arts and Crafts Vintage Fireplace Insert

Materials

Copper

Large Cast Iron Victorian Manner Horseshoe Fireplace Insert
Large Cast Iron Victorian Manner Horseshoe Fireplace Insert

Large Cast Iron Victorian Manner Horseshoe Fireplace Insert

Located in Edinburgh, GB

A large and substantial cast iron Victorian manner horseshoe shaped insert. A generous back plate supporting a high relief decorative frame, the scallop shaped fire back with scallop...

Category

1960s English Victorian Vintage Fireplace Insert

Materials

Iron

Antique Stainless Steel Fire Insert
Antique Stainless Steel Fire Insert

Antique Stainless Steel Fire Insert

Located in Wormelow, Herefordshire

An elegant fireplace insert with curved sides and applied beading.

Category

20th Century English Art Deco Vintage Fireplace Insert

Materials

Steel, Metal

Georgian Manner White Marble Bullseye Fireplace Surround
Georgian Manner White Marble Bullseye Fireplace Surround

Georgian Manner White Marble Bullseye Fireplace Surround

Located in Edinburgh, GB

Shown with a polished steel fireplace insert available separately. Fire opening size: 915mm wide x 920mm high.

Category

1950s Georgian Vintage Fireplace Insert

Materials

Marble

19th Century Georgian Manner Statuary Marble Fireplace Surround.
19th Century Georgian Manner Statuary Marble Fireplace Surround.

19th Century Georgian Manner Statuary Marble Fireplace Surround.

Located in Edinburgh, GB

Overall base width: 1290mm Shown with a steel fireplace insert not included, but, available separately on our 1st dibs listings.

Category

1960s British Georgian Vintage Fireplace Insert

Materials

Statuary Marble

19th Century Regency Style Grecian White Limestone Fireplace Surround
19th Century Regency Style Grecian White Limestone Fireplace Surround

19th Century Regency Style Grecian White Limestone Fireplace Surround

Located in Edinburgh, GB

Shown with its original fireplace insert available separately on our other 1st dibs listings.

Category

1950s English Regency Vintage Fireplace Insert

Materials

Limestone

French Carrara marble fire place with Adam and Eve decoration
French Carrara marble fire place with Adam and Eve decoration

French Carrara marble fire place with Adam and Eve decoration

Located in Meulebeke, BE

This fireplace is sold with its original marble floor but without any fireplace insert.

Category

Mid-20th Century French Baroque Vintage Fireplace Insert

Materials

Carrara Marble

Burgundy Marble Stone Fireplace Surround - Compact Elegant Mantle - 123 cm Wide
Burgundy Marble Stone Fireplace Surround - Compact Elegant Mantle - 123 cm Wide

Burgundy Marble Stone Fireplace Surround - Compact Elegant Mantle - 123 cm Wide

Located in Beervelde, BE

It is compatible in concept with Isokern fireboxes from Earthcore, or in Europe with Metalfire, M-Design and other quality fireplace insert brands, depending on technical installatio...

Category

Late 20th Century French Louis XIV Vintage Fireplace Insert

Materials

Limestone, Marble

Antique Art Deco Stainless Steel Fire Insert
Antique Art Deco Stainless Steel Fire Insert

Antique Art Deco Stainless Steel Fire Insert

Located in Wormelow, Herefordshire

An impressive antique Art Deco stainless steel fire insert, certain to draw the eye to any 1920s fireplace!

Category

20th Century English Art Deco Vintage Fireplace Insert

Materials

Stainless Steel

Antique Neoclassical Style Bronze Fire Insert
Antique Neoclassical Style Bronze Fire Insert

Antique Neoclassical Style Bronze Fire Insert

Located in Wormelow, Herefordshire

This early 20th century antique neoclassical style bronze fire insert is highly decorative, the three panels detailed with high quality, good definition details of figures, flowers, ...

Category

20th Century English Neoclassical Vintage Fireplace Insert

Materials

Metal, Bronze, Iron

Art Deco Stainless Steel Fire Mantel Insert
Art Deco Stainless Steel Fire Mantel Insert

Art Deco Stainless Steel Fire Mantel Insert

Located in Wormelow, Herefordshire

An original Art Deco fire mantel insert constructed from stainless steel and decorated with brass fleur de lis embellishments. An impressive insert for any Art Deco inspired property...

Category

20th Century English Art Deco Vintage Fireplace Insert

Materials

Metal, Brass, Stainless Steel

Louis XVI Style Paneling with Louis XVI Period Mantel and Trumeau
Louis XVI Style Paneling with Louis XVI Period Mantel and Trumeau

Louis XVI Style Paneling with Louis XVI Period Mantel and Trumeau

Located in SAINT-OUEN-SUR-SEINE, FR

The mantel is sold without the sides that are modern or any fireplace insert but with its marble floor.

Category

1950s French Louis XVI Vintage Fireplace Insert

Materials

Wood

Recent Sales

Late 19th Century Arts and Craft Burnished Cast Iron Fireplace Insert
Late 19th Century Arts and Craft Burnished Cast Iron Fireplace Insert

Late 19th Century Arts and Craft Burnished Cast Iron Fireplace Insert

Located in Leicester, Leicestershire

Antique restored burnished (semi polished) cast iron arts and craft fireplace insert. Complete with original fire back and grate, supplied with a reproduced ash cover and damper plat...

Category

Late 20th Century British Arts and Crafts Vintage Fireplace Insert

Materials

Iron

1930s Vintage Art Deco Semi Polished Cast Iron Fireplace Insert,
1930s Vintage Art Deco Semi Polished Cast Iron Fireplace Insert,

1930s Vintage Art Deco Semi Polished Cast Iron Fireplace Insert,

Located in Leicester, Leicestershire

Antique restored vintage Art Deco 1930s semi polished (burnished) cast iron insert with original hearth, fender and ash cover. Compete with a replacement metal fire back and grate.

Category

Mid-20th Century British Art Deco Vintage Fireplace Insert

Materials

Iron

Reclaimed Cast Iron Fire Insert, 20th Century
Reclaimed Cast Iron Fire Insert, 20th Century

Reclaimed Cast Iron Fire Insert, 20th Century

Unavailable

H 37.92 in W 36.03 in D 5.12 in

Reclaimed Cast Iron Fire Insert, 20th Century

Located in London, GB

Reclaimed cast iron fire insert. Overall size below, the top bar is missing from the curved front, plus some surface rust. Internal measurements of arch 41 cm wide x 69 cm high. Over...

Category

20th Century European Vintage Fireplace Insert

Materials

Iron

Antique Neoclassical Cast Iron Brass Insert, 20th Century
Antique Neoclassical Cast Iron Brass Insert, 20th Century

Antique Neoclassical Cast Iron Brass Insert, 20th Century

Unavailable

H 38.19 in W 43.31 in D 1.3 in

Antique Neoclassical Cast Iron Brass Insert, 20th Century

Located in London, GB

Reclaimed antique neoclassical tiled fire insert, made from cast iron with brass detailing, including egg and dart beading and a central figure reading a book with a bird at their fe...

Category

20th Century European Vintage Fireplace Insert

Materials

Iron

Reclaimed Ornate Cast Iron Fire Insert, 20th Century
Reclaimed Ornate Cast Iron Fire Insert, 20th Century

Reclaimed Ornate Cast Iron Fire Insert, 20th Century

Unavailable

H 32.68 in W 33.27 in D 1.78 in

Reclaimed Ornate Cast Iron Fire Insert, 20th Century

Located in London, GB

Antique cast iron curved fire insert with ornate crossed trumpets or bugles, ribbons and floral accents. Painted white, this is chipped in places. Some surface rust. Measurements giv...

Category

20th Century European Vintage Fireplace Insert

Materials

Iron

Ornate Fire Insert with Trivets or Pot Stands, 20th Century
Ornate Fire Insert with Trivets or Pot Stands, 20th Century

Ornate Fire Insert with Trivets or Pot Stands, 20th Century

Unavailable

H 37.13 in W 33.98 in D 8.59 in

Ornate Fire Insert with Trivets or Pot Stands, 20th Century

Located in London, GB

Ornate antique arched fire insert with scrolled pivoting trivets or warming plates. Attractive detailing throughout. Some surface rust and marks.

Category

20th Century European Vintage Fireplace Insert

Materials

Metal

Cast Iron Arched Insert Chimney Plate and Grate, 20th Century
Cast Iron Arched Insert Chimney Plate and Grate, 20th Century

Cast Iron Arched Insert Chimney Plate and Grate, 20th Century

Unavailable

H 37.01 in W 37.21 in D 12.21 in

Cast Iron Arched Insert Chimney Plate and Grate, 20th Century

Located in London, GB

Reclaimed detailed cast iron fire insert with chimney plate and grate. Overall size below. A break in the metal to the rear needs attention and some surface rust is present.

Category

20th Century European Vintage Fireplace Insert

Materials

Iron

Pair 1950's Log Holder Fireplace inserts
Pair 1950's Log Holder Fireplace inserts

Pair 1950's Log Holder Fireplace inserts

Sold

H 7.5 in W 17.5 in D 4 in

Pair 1950's Log Holder Fireplace inserts

Located in Ferndale, MI

Pair 1950's Log Holder Fireplace inserts - Cast Iron marked "Wayne AGL BNC No/ 2 Log Cradle".

Category

1950s Vintage Fireplace Insert

Georgian Manner Polished Steel Fireplace Insert
Georgian Manner Polished Steel Fireplace Insert

Georgian Manner Polished Steel Fireplace Insert

Sold

H 36.93 in W 38 in D 11.42 in

Georgian Manner Polished Steel Fireplace Insert

Located in Edinburgh, GB

A charming and versatile polished steel fireplace insert in the Georgian manner. A generous outer plate displaying a central tablet with a polished brass mount and a polished steel d...

Category

1960s British Georgian Vintage Fireplace Insert

Materials

Steel

Victorian Style Cast Iron Arch Fireplace Insert
Victorian Style Cast Iron Arch Fireplace Insert

Victorian Style Cast Iron Arch Fireplace Insert

Sold

H 37.09 in W 37.09 in D 8.67 in

Victorian Style Cast Iron Arch Fireplace Insert

Located in Edinburgh, GB

A simple Victorian style cast iron arched fireplace insert of good proportions. The highlighted front arch with generous outer plate, complete with the original damper plate, ash pan...

Category

1960s English Victorian Vintage Fireplace Insert

Materials

Iron

English Arts & Crafts Fireplace Insert in Cast Iron
English Arts & Crafts Fireplace Insert in Cast Iron

English Arts & Crafts Fireplace Insert in Cast Iron

Located in London, GB

An English Arts & Crafts fireplace insert in cast iron. The shaped outer frame with mouldings and beading throughout, the burning area with polished front and decorative fleur-de-lys...

Category

Late 20th Century English Arts and Crafts Vintage Fireplace Insert

Materials

Iron

Polished 19th Century Regency Style Register Fireplace Insert
Polished 19th Century Regency Style Register Fireplace Insert

Polished 19th Century Regency Style Register Fireplace Insert

Located in Edinburgh, GB

A medium sized 19th century Regency style polished register fireplace insert of handsome proportions. A four bar polished fire grate with three cushion ball spacers above a serpentin...

Category

1940s English Regency Vintage Fireplace Insert

Materials

Steel

19th Century Regency Style Polished Steel Fireplace Insert
19th Century Regency Style Polished Steel Fireplace Insert

19th Century Regency Style Polished Steel Fireplace Insert

Located in Edinburgh, GB

A remarkable 19th century Regency style polished steel fireplace insert. A framed outer plate with applied beading centred by a steel and brass tablet with a central eye embellishmen...

Category

1950s English Regency Vintage Fireplace Insert

Materials

Brass, Steel

Decorative Brass Fireplace Insert with Large Rosettes to Centre
Decorative Brass Fireplace Insert with Large Rosettes to Centre

Decorative Brass Fireplace Insert with Large Rosettes to Centre

Located in London, GB

A decorative brass fireplace insert with large rosettes to centre, beading and crosshatching throughout.

Category

Late 20th Century English Vintage Fireplace Insert

Materials

Brass

19th Century Manner Polished Brass & Steel Fireplace Insert
19th Century Manner Polished Brass & Steel Fireplace Insert

19th Century Manner Polished Brass & Steel Fireplace Insert

Located in Edinburgh, GB

A very beautiful and versatile 19th Century polished brass & steel fireplace insert. A solid brass outer frame with centralised high relief daisy tendrils, the polished splayed hoo...

Category

1950s British Victorian Vintage Fireplace Insert

Materials

Brass

Georgian Style Cast Iron Hob Grate Fireplace Insert
Georgian Style Cast Iron Hob Grate Fireplace Insert

Georgian Style Cast Iron Hob Grate Fireplace Insert

Sold

H 36.82 in W 36.82 in D 11.23 in

Georgian Style Cast Iron Hob Grate Fireplace Insert

Located in Edinburgh, GB

A cast iron Georgian style hob grate fireplace insert, complete with an electrical lighting feature and coals, could be supplied ready for solid fuel or converted to gas, shown with ...

Category

1980s English Georgian Vintage Fireplace Insert

Materials

Iron

Large 19th Century Regency Style Polished Steel Fireplace Insert
Large 19th Century Regency Style Polished Steel Fireplace Insert

Large 19th Century Regency Style Polished Steel Fireplace Insert

Located in Edinburgh, GB

A charming 19th century Regency style polished steel fireplace insert of high quality, a large polished steel outer frame with applied tram line moulding finishing on square plate bl...

Category

1950s English Regency Vintage Fireplace Insert

Materials

Steel, Iron

19th Century Victorian Style Cast Iron Large Arched Fireplace Insert
19th Century Victorian Style Cast Iron Large Arched Fireplace Insert

19th Century Victorian Style Cast Iron Large Arched Fireplace Insert

Located in Edinburgh, GB

A large and versatile 19th century Victorian style cast iron large aperture arch fireplace insert. A generous outer plate with a polished and highlighted raised moulding sweeping in ...

Category

1950s English Victorian Vintage Fireplace Insert

Materials

Iron

Large Period Cast Iron and Brass Arch Victorian Manor Fireplace Insert
Large Period Cast Iron and Brass Arch Victorian Manor Fireplace Insert

Large Period Cast Iron and Brass Arch Victorian Manor Fireplace Insert

Located in Edinburgh, GB

A large period cast iron and brass arched fireplace insert of superb quality, in the Victorian manor fully restored and polished to its former glory.

Category

1960s English Victorian Vintage Fireplace Insert

Materials

Iron

A large 19th Century Georgian Manner Polished
Steel Fireplace Insert.
A large 19th Century Georgian Manner Polished
Steel Fireplace Insert.

A large 19th Century Georgian Manner Polished Steel Fireplace Insert.

Located in Edinburgh, GB

A larger than normal 19th Century Georgian manner polished steel fireplace insert. A generous polished outer plate with an applied raised lambs tongue moulding, encompassing a centra...

Category

1950s English Georgian Vintage Fireplace Insert

Materials

Steel

Period Arched Cast Iron Fireplace Insert
Period Arched Cast Iron Fireplace Insert

Period Arched Cast Iron Fireplace Insert

Sold

H 38 in W 38.19 in D 9.85 in

Period Arched Cast Iron Fireplace Insert

Located in Edinburgh, GB

A simple arched period style cast iron insert cast by the Stovax foundry, complete with all original parts. English, circa 1960.

Category

1960s English Victorian Vintage Fireplace Insert

Materials

Iron

Victorian Style Cast Iron Arched Fireplace Insert
Victorian Style Cast Iron Arched Fireplace Insert

Victorian Style Cast Iron Arched Fireplace Insert

Located in Edinburgh, GB

A Victorian style cast iron arched insert with highlighted rims and polished ash pan door and fire bars, comes with its original damper. English, circa 1950.

Category

1950s English Victorian Vintage Fireplace Insert

Materials

Iron

19th Century Victorian Style Carron Cast Iron Firelace Insert
19th Century Victorian Style Carron Cast Iron Firelace Insert

19th Century Victorian Style Carron Cast Iron Firelace Insert

Located in Edinburgh, GB

A well balanced 19th century style cast iron fireplace insert by the Carron foundry, a highlighted raised moulding around the opening, with its original ash pan tray and fire grate.

Category

1950s English Victorian Vintage Fireplace Insert

Materials

Iron

Period Victorian Style Cast Iron Insert
Period Victorian Style Cast Iron Insert

Period Victorian Style Cast Iron Insert

Sold

H 42.25 in W 43.31 in D 11.42 in

Period Victorian Style Cast Iron Insert

Located in Edinburgh, GB

A large Period Victorian style cast iron fireplace insert, a large cast back panel hosting an arch of repeating budded flowers cast in solid brass with a bobbin centre joining motif,...

Category

1960s English Victorian Vintage Fireplace Insert

Materials

Brass, Iron

Antique Fireplace Inset Cast Iron with Lovely Vintage Hand Painted Tiles
Antique Fireplace Inset Cast Iron with Lovely Vintage Hand Painted Tiles

Antique Fireplace Inset Cast Iron with Lovely Vintage Hand Painted Tiles

Located in West Sussex, Pulborough

We are delighted to offer for sale this lovely vintage cast iron with silvered finish Fireplace insert complete with hand painted tiles A very nice Victorian style fireplace inser...

Category

20th Century English Victorian Vintage Fireplace Insert

Materials

Iron

Large Regency Style Carved Statuary Marble Fireplace Surround
Large Regency Style Carved Statuary Marble Fireplace Surround

Large Regency Style Carved Statuary Marble Fireplace Surround

Located in Edinburgh, GB

Shown with its original polished steel and brass fireplace insert available separately on our 1st dibs listings.

Category

1940s British Regency Vintage Fireplace Insert

Materials

Statuary Marble

20th Century Paid Of Brass Fireplace Side Panels
20th Century Paid Of Brass Fireplace Side Panels

20th Century Paid Of Brass Fireplace Side Panels

Located in London, GB

You Would Fit These In The Back Of A Fireplace Insert Instead Of The Tile Set. Of Course They Could Equally Be Used As Decoative Objects D`art.

Category

20th Century English Victorian Vintage Fireplace Insert

Materials

Brass

Period Marble Fireplace Surround and Cast Iron Insert
Period Marble Fireplace Surround and Cast Iron Insert

Period Marble Fireplace Surround and Cast Iron Insert

Located in Edinburgh, GB

A period light marble corbel fireplace surround complete with its cast iron London arch insert.

Category

1960s English Victorian Vintage Fireplace Insert

Materials

Carrara Marble

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Vintage Fireplace Insert For Sale on 1stDibs

Choose from an assortment of styles, material and more with respect to the vintage fireplace insert you’re looking for at 1stDibs. Each vintage fireplace insert for sale was constructed with extraordinary care, often using metal, iron and brass. Whether you’re looking for an older or newer vintage fireplace insert, there are earlier versions available from the 20th Century and newer variations made as recently as the 20th Century. When you’re browsing for the right vintage fireplace insert, those designed in Victorian, Mid-Century Modern and Georgian styles are of considerable interest.

How Much is a Vintage Fireplace Insert?

Prices for a vintage fireplace insert start at $295 and top out at $4,814 with the average selling for $1,948.

Finding the Right Fireplaces-mantels for You

While we likely wouldn’t mourn the invention of home heating and air-conditioning, these innovations did tragically reduce the widespread need for fireplaces and mantels in our living rooms.

Once an essential fixture in all homes, the fireplace, which, along with the chimney, is as old as the Middle Ages, was actually rendered redundant with the advent of the cast-iron heating stove during the 18th century. Victorian-era heating stoves were popular in the common areas of a living space for their capacity to heat as well as for their lack of smoke compared to fireplaces. However, improvements in craftsmanship as well as the Industrial Revolution meant that fireplaces were evolving in form and functionality.

Even as HVAC systems would eventually see to it that fireplaces weren’t a necessity, no mechanically engineered thermal heating and ventilation technology can replicate the feeling of warmth and camaraderie that a flickering fire guarantees. We just love a good fireplace.

“With antique fireplaces, you get heart, soul, character and architecture,” says Tony Ingrao, a Manhattan-based interior designer who purchased an important 16th-century French limestone fireplace for a client’s Greenwich Village townhouse.

Vintage fireplaces and mantels have earned their coveted position as desirable focal points in any room over the course of a staggering evolution in design that has yielded everything from intricately carved works of limestone to sleek works of wood paneling and rolled steel.

As log after log turns into ash, these iconic designs prove their timelessness and value, monetarily and as prized decorative monuments. Whether you seek to simply warm a space or completely transform it, an eye-catching new mantel for your blazing hearth — be it an elegant neoclassical design, a marvelous work of marble in the Louis XV style or an unconventional contemporary variation — is the perfect solution.

Find a collection of antique and vintage fireplaces and mantels on 1stDibs today.

Questions About Vintage Fireplace Insert

  • 1stDibs ExpertMarch 22, 2022
    A cast iron fireplace insert is a firebox that fits into an existing fireplace surround. The insert is made of cast iron, a type of iron that is more than 2 percent carbon. Cast iron is highly durable and very resistant to the effects of heat. You'll find a selection of cast iron fireplace inserts on 1stDibs.