Find a gas fireplace built for Cobb County's mild winters.

Costs in Cobb County typically run $3,500 to $9,000, with the spread coming down to venting and gas line work rather than the fireplace itself. Converting an existing masonry fireplace—common in older Marietta, Smyrna, and Vinings homes—to a direct-vent gas insert sits toward the lower end when a gas line is already nearby. New construction or a remodel in Kennesaw, Acworth, or Powder Springs that needs a fresh gas run and full framing for a built-in unit lands higher. A local dealer will give you a firm number after seeing your existing chimney or wall cavity in person.

Yes, and it's one of the most common jobs local hearth dealers see in Cobb County. Most 1970s–1990s builder homes throughout Marietta, Kennesaw, and East Cobb were built with open masonry fireplaces designed for oak, pine, or hickory cordwood, but with the county's mild winters, a lot of those never got heavy use as a heat source. A gas insert drops into that same firebox, uses a stainless liner run through the existing chimney for venting, and typically runs $4,000 to $8,500 depending on the insert and whether new gas piping is needed. You keep the look of the original fireplace and gain real, on-demand heat.

Natural gas through Atlanta Gas Light reaches the vast majority of Cobb County, including Marietta, Kennesaw, Smyrna, and Acworth, so most homeowners already have a gas meter and just need a line extension to the fireplace location. Georgia's gas market is deregulated, meaning Atlanta Gas Light handles the pipes while you choose a billing marketer like Gas South or one of several competitors—that choice doesn't affect installation. Propane remains an option for the handful of unincorporated pockets near the county line without natural gas service, though it's the exception here rather than the rule.

Most modern gas fireplaces will, provided they use IPI (intermittent pilot ignition) with a battery backup—a handful of AA batteries inside the unit take over automatically if the power drops. That matters in Cobb County more than the mild average temperatures might suggest: ice storms, like the 2014 event that shut down metro Atlanta for days, can knock out power right when it's coldest. Valor fireplaces skip the battery question entirely—their pilot generates its own electricity through a thermocouple, so there's nothing to remember to replace. Worth asking your local dealer about the ignition system on any unit you're weighing.

A gas fireplace is a fully built-in unit framed into a wall—the standard choice for new construction going up in Acworth and Powder Springs. A gas insert slides into an existing masonry firebox, which fits the ranch and split-level homes common across older Marietta and East Cobb neighborhoods. A gas stove is a freestanding cast-iron or steel unit that sits on the floor and vents through a wall or ceiling, a good fit for a room with no existing chimney. For most Cobb County homeowners with an original builder-grade fireplace, an insert is the straightforward upgrade.

Yes. In unincorporated Cobb County, both the building permit and gas line permit go through the Cobb County Community Development Agency. If your home is inside Marietta, Kennesaw, Smyrna, or Acworth city limits, that city's own permit office handles it instead. Either way, the gas line work requires a licensed gas-fitter, which is one reason to go through a certified hearth dealer rather than a general handyman—they coordinate the gas hookup, venting, and inspection as one job instead of leaving you to manage separate trades.

Vented (direct-vent) fireplaces pull combustion air from outside and exhaust the byproducts back outside through a sealed pipe—they're the cleanest option and code-compliant everywhere, including throughout Cobb County. Vent-free units burn without any outdoor venting, releasing some moisture and combustion byproducts into the room, and Georgia permits them under strict room-sizing and oxygen-sensor rules. For most Cobb County living rooms and family rooms, direct-vent units are the more common recommendation—they put out real heat without any air-quality tradeoff, and local dealers install them far more often than vent-free models.

Plan on an annual inspection, ideally in early fall before the first cold snap. A technician checks the burner, pilot assembly, gas connections, and venting, and cleans the glass and interior—a much quicker job than a wood chimney sweep, but just as important for safety. Local gas appliance service companies in the Marietta and Kennesaw area typically charge $125 to $225 for this visit.

Wood heat runs deep in colder states with long winters, but Cobb County's climate zone 3A and mild, short heating season—a small fraction of what a Fargo or Bismarck winter demands—mean wood was never a practical primary heat source here, even though oak, pine, and hickory are all locally available and plenty of older homes have masonry fireboxes built for them. A handful of homeowners still burn wood in an existing fireplace purely for the ambiance of a real fire on a cold night. For anyone prioritizing convenience, consistent heat, and no ash cleanup, gas is the clear fit for the vast majority of Cobb County homes, which is why it's the far more common upgrade for both new construction and existing masonry conversions.

An insert does two things: it seals the chimney completely, so you stop losing air you already paid to heat, and it radiates warmth into the room through the firebox and glass. Most add a heat-exchange fan that pulls cool room air underneath, wraps it around the hot firebox, and pushes it back out warm. Your home is more efficient before you've even lit the first fire.

Yes—with an asterisk. Fireplaces are hot and TVs don't like heat. Either put a mantel between them to deflect rising warmth, or choose a fireplace with heat-management technology that creates a cool zone on the wall above—the wall stays around 125 degrees, barely warm, while the room still gets full heat. If you like clean lines and don't want a mantel, heat management is the answer.

Yes—by creating a comfort zone. A furnace heats every square foot of the house just to warm the one room you're in; a gas fireplace on low burns roughly a sixth of the gas a typical furnace does. Set the furnace around 55–60 degrees as a baseline, then heat the rooms your family actually uses. Families who heat this way commonly save $20–$60 a month.

For an average home—covering the fireplace, the vent pipe, and basic installation—a budget between $3,900 and $5,500 gives you a lot of options across wood, gas, and pellet. By the time you add finish work, gas line, and electrical, the average complete installation lands between $5,000 and $12,000 all-in. In a remodel or new build, a good rule is to put about 2.5% of the total project cost toward the fireplace.