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WilliamSmith Fireplaces

Gas Inserts

Transform your existing fireplace with a high-efficiency gas insert.

Find Your Fireplace Visit Our Showroom
What's your situation?
What fuel type?
How much heat do you want?
What's your style?

Heat & Glo: Cosmo 30

Heat & Glo

Heat & Glo: Cosmo 30

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Heat & Glo: Cosmo 35

Heat & Glo

Heat & Glo: Cosmo 35

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Heat & Glo: Escape-30

Heat & Glo

Heat & Glo: Escape-30

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Heat & Glo: Escape-35

Heat & Glo

Heat & Glo: Escape-35

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Heat & Glo: Provident 30

Heat & Glo

Heat & Glo: Provident 30

Gas Insert

Gas Medium heat All
$$
Customize Product & Get Proposal See in Your Space
Heat & Glo: Provident 35

Heat & Glo

Heat & Glo: Provident 35

Gas Insert

Gas Medium heat All
$$
Customize Product & Get Proposal See in Your Space
Heat & Glo: Supreme 25

Heat & Glo

Heat & Glo: Supreme 25

Gas Insert

Gas Mild heat All
$$
Customize Product & Get Proposal See in Your Space
Heat & Glo: Supreme 30

Heat & Glo

Heat & Glo: Supreme 30

Gas Insert

Gas Medium heat All
$$
Customize Product & Get Proposal See in Your Space
Heat & Glo: Supreme 35

Heat & Glo

Heat & Glo: Supreme 35

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Heat & Glo: SupremeX

Heat & Glo

Heat & Glo: SupremeX

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Kozy Heat: Chaska 25 Gas Insert

Kozy Heat

Kozy Heat: Chaska 25 Gas Insert

Gas Insert

Gas Mild heat All
$$$
Customize Product & Get Proposal See in Your Space
Kozy Heat: Chaska 29 Gas Insert - Logs

Kozy Heat

Kozy Heat: Chaska 29 Gas Insert - Logs

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Kozy Heat: Chaska 29 Gas Insert - Millivolt

Kozy Heat

Kozy Heat: Chaska 29 Gas Insert - Millivolt

Gas Insert

Gas Medium heat All
$$
Customize Product & Get Proposal See in Your Space
Kozy Heat: Chaska 29 Glass Insert

Kozy Heat

Kozy Heat: Chaska 29 Glass Insert

Gas Insert

Gas Mild heat All
$$$
Customize Product & Get Proposal See in Your Space
Kozy Heat: Chaska 335S Gas Insert

Kozy Heat

Kozy Heat: Chaska 335S Gas Insert

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Kozy Heat: Chaska 34 Gas Insert - Glass

Kozy Heat

Kozy Heat: Chaska 34 Gas Insert - Glass

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Kozy Heat: Chaska 34 Gas Insert - Logs

Kozy Heat

Kozy Heat: Chaska 34 Gas Insert - Logs

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Kozy Heat: Nordik 29 Gas Insert

Kozy Heat

Kozy Heat: Nordik 29 Gas Insert

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Kozy Heat: Nordik 34 Gas Insert

Kozy Heat

Kozy Heat: Nordik 34 Gas Insert

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Kozy Heat: Roosevelt 29 Gas Insert

Kozy Heat

Kozy Heat: Roosevelt 29 Gas Insert

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Kozy Heat: Roosevelt 34 Gas Insert

Kozy Heat

Kozy Heat: Roosevelt 34 Gas Insert

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Majestic: Jasper 30

Majestic

Majestic: Jasper 30

Gas Insert

Gas Medium heat All
$$
Customize Product & Get Proposal See in Your Space
Majestic: Ruby 25

Majestic

Majestic: Ruby 25

Gas Insert

Gas Mild heat All
$$
Customize Product & Get Proposal See in Your Space
Majestic: Ruby 30

Majestic

Majestic: Ruby 30

Gas Insert

Gas Medium heat All
$$
Customize Product & Get Proposal See in Your Space
Majestic: Ruby 35

Majestic

Majestic: Ruby 35

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Majestic: Trilliant 25

Majestic

Majestic: Trilliant 25

Gas Insert

Gas Mild heat All
$$$
Customize Product & Get Proposal See in Your Space
Majestic: Trilliant 30

Majestic

Majestic: Trilliant 30

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Majestic: Trilliant 35

Majestic

Majestic: Trilliant 35

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Monessen: Solstice/VFI 33 (Vent-Free) Insert

Monessen

Monessen: Solstice/VFI 33 (Vent-Free) Insert

Gas Insert

Gas Medium heat All
$$
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Montigo: 30FIDL Legacy Contemporary Insert

Montigo

Montigo: 30FIDL Legacy Contemporary Insert

Gas Insert

Gas Medium heat All
$$$
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Montigo: 30FIDS Legacy Traditional Insert

Montigo

Montigo: 30FIDS Legacy Traditional Insert

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Montigo: 34FIDS Legacy Traditional Insert

Montigo

Montigo: 34FIDS Legacy Traditional Insert

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Ortal: Wilderness 29

Ortal

Ortal: Wilderness 29

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Ortal: Wilderness 34

Ortal

Ortal: Wilderness 34

Gas Insert

Gas Medium heat All
$$$
Customize Product & Get Proposal See in Your Space
Superior: DRI2027

Superior

Superior: DRI2027

Gas Insert

Gas Medium heat All
$$
Customize Product & Get Proposal See in Your Space
Superior: DRI2032

Superior

Superior: DRI2032

Gas Insert

Gas Medium heat All
$$
Customize Product & Get Proposal See in Your Space
RH Peterson: 4" Carrera Marble Fyre Spheres (24-Piece Set)

RH Peterson

RH Peterson: 4" Carrera Marble Fyre Spheres (24-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 4" Epic Black Fyre Spheres (19-Piece Set)

RH Peterson

RH Peterson: 4" Epic Black Fyre Spheres (19-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 4" Epic Black Fyre Spheres (24-Piece Set)

RH Peterson

RH Peterson: 4" Epic Black Fyre Spheres (24-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 4" Epic Black Fyre Spheres (34-Piece Set)

RH Peterson

RH Peterson: 4" Epic Black Fyre Spheres (34-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 4" Graystone Fyre Spheres (19-Piece Set)

RH Peterson

RH Peterson: 4" Graystone Fyre Spheres (19-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 4" Graystone Fyre Spheres (24-Piece Set)

RH Peterson

RH Peterson: 4" Graystone Fyre Spheres (24-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 4" Graystone Fyre Spheres (34-Piece Set)

RH Peterson

RH Peterson: 4" Graystone Fyre Spheres (34-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 5" Epic Black Fyre Spheres (14-Piece Set)

RH Peterson

RH Peterson: 5" Epic Black Fyre Spheres (14-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 5" Epic Black Fyre Spheres (19-Piece Set)

RH Peterson

RH Peterson: 5" Epic Black Fyre Spheres (19-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 5" Epic Black Fyre Spheres (24-Piece Set)

RH Peterson

RH Peterson: 5" Epic Black Fyre Spheres (24-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 5" Graystone Fyre Spheres (14-Piece Set)

RH Peterson

RH Peterson: 5" Graystone Fyre Spheres (14-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 5" Graystone Fyre Spheres (19-Piece Set)

RH Peterson

RH Peterson: 5" Graystone Fyre Spheres (19-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: 5" Graystone Fyre Spheres (24-Piece Set)

RH Peterson

RH Peterson: 5" Graystone Fyre Spheres (24-Piece Set)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: Epic Black Mixed Select Fyre Spheres (16-Piece)

RH Peterson

RH Peterson: Epic Black Mixed Select Fyre Spheres (16-Piece)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: Epic Black Mixed Select Fyre Spheres (24-Piece)

RH Peterson

RH Peterson: Epic Black Mixed Select Fyre Spheres (24-Piece)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: Epic Black Mixed Select Fyre Spheres (32-Piece)

RH Peterson

RH Peterson: Epic Black Mixed Select Fyre Spheres (32-Piece)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: G19A Series Vent-Free Foothill Split Oak Logs - 30"

RH Peterson

RH Peterson: G19A Series Vent-Free Foothill Split Oak Logs - 30"

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: G21 Vent-Free Glass Burner - 18"

RH Peterson

RH Peterson: G21 Vent-Free Glass Burner - 18"

Gas Insert

Gas Decorative heat All
$$
Customize Product & Get Proposal See in Your Space
RH Peterson: G21 Vent-Free Glass Burner - 24"

RH Peterson

RH Peterson: G21 Vent-Free Glass Burner - 24"

Gas Insert

Gas Decorative heat All
$$
Customize Product & Get Proposal See in Your Space
RH Peterson: G21 Vent-Free Glass Burner - 30"

RH Peterson

RH Peterson: G21 Vent-Free Glass Burner - 30"

Gas Insert

Gas Decorative heat All
$$
Customize Product & Get Proposal See in Your Space
RH Peterson: G21 Vent-Free Glass See-Thru Burner - 18"

RH Peterson

RH Peterson: G21 Vent-Free Glass See-Thru Burner - 18"

Gas Insert

Gas Decorative heat All
$$
Customize Product & Get Proposal See in Your Space
RH Peterson: G21 Vent-Free Glass See-Thru Burner - 24"

RH Peterson

RH Peterson: G21 Vent-Free Glass See-Thru Burner - 24"

Gas Insert

Gas Decorative heat All
$$
Customize Product & Get Proposal See in Your Space
RH Peterson: Graystone Mixed Select Fyre Spheres (16-Piece)

RH Peterson

RH Peterson: Graystone Mixed Select Fyre Spheres (16-Piece)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: Graystone Mixed Select Fyre Spheres (24-Piece)

RH Peterson

RH Peterson: Graystone Mixed Select Fyre Spheres (24-Piece)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: Graystone Mixed Select Fyre Spheres (32-Piece)

RH Peterson

RH Peterson: Graystone Mixed Select Fyre Spheres (32-Piece)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: PB Series Glass Pan Burner System - 18" (LP)

RH Peterson

RH Peterson: PB Series Glass Pan Burner System - 18" (LP)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: PB Series Glass Pan Burner System - 18" (NG)

RH Peterson

RH Peterson: PB Series Glass Pan Burner System - 18" (NG)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: PB Series Glass Pan Burner System - 24" (LP)

RH Peterson

RH Peterson: PB Series Glass Pan Burner System - 24" (LP)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: PB Series Glass Pan Burner System - 24" (NG)

RH Peterson

RH Peterson: PB Series Glass Pan Burner System - 24" (NG)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: PB Series Glass Pan Burner System - 30" (LP)

RH Peterson

RH Peterson: PB Series Glass Pan Burner System - 30" (LP)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: PB Series Glass Pan Burner System - 30" (NG)

RH Peterson

RH Peterson: PB Series Glass Pan Burner System - 30" (NG)

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: PB Series Listed Flame Pan Burner System - 16"

RH Peterson

RH Peterson: PB Series Listed Flame Pan Burner System - 16"

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: PB Series Listed Flame Pan Burner System - 20"

RH Peterson

RH Peterson: PB Series Listed Flame Pan Burner System - 20"

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: PB Series Listed Flame Pan Burner System - 36"

RH Peterson

RH Peterson: PB Series Listed Flame Pan Burner System - 36"

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
RH Peterson: PB Series Listed Flame Pan Burner System - 42"

RH Peterson

RH Peterson: PB Series Listed Flame Pan Burner System - 42"

Gas Insert

Gas Decorative heat All
$
Customize Product & Get Proposal See in Your Space
Gas Inserts

Upgrade Your Existing Fireplace

If you've got an old wood-burning fireplace that's more drafty than delightful, a gas insert is the fastest way to turn it into something you'll actually use. A gas insert slides into your existing firebox and vents through the chimney you already have, sealing the opening and replacing that open, inefficient hearth with a high-performance heating appliance. The result is instant fire at the push of a button, real radiant warmth, and no more hauling logs or scooping ash.

Modern gas inserts deliver efficiency ratings above 80%, which means most of the heat they produce stays in your home instead of escaping up the flue. Many models come with built-in fans, thermostatic controls, and remote-start options—features that make it easy to keep a room comfortable without adjusting the thermostat on your central system. Styles range from traditional log sets behind classic doors to contemporary linear burners with clean glass fronts.

WilliamSmith Fireplaces handles the entire process, from measuring your existing firebox to coordinating gas-line work and completing the final installation. Our technicians know the ins and outs of Lowcountry chimneys, so you can trust the job will be done right.

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Gas Inserts

Why Choose a Gas Insert?

Seal Your Drafty Fireplace

A gas insert closes off an inefficient open firebox, stopping heat loss and cold drafts.

80%+ Efficiency Ratings

Most of the heat stays in your room instead of escaping up the chimney.

Fits Your Existing Firebox

Inserts slide into your current fireplace opening — no major construction needed.

Thermostatic & Remote Control

Set your ideal temperature and let the insert maintain it, or fire it up from the couch.

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Need Help Choosing?

Visit our showroom to see gas inserts burning live, or request a project proposal to get started.

Let our team help you find the perfect fireplace for your home.

Find Your Fireplace Visit Our Showroom
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