Reliable heat for Lewisville's mild winters—and the rare hard freeze.

Most gas fireplace installations in Lewisville run between roughly $3,000 and $9,000, depending on the unit and the scope of work. Converting an existing masonry wood fireplace to a direct-vent gas insert or log set—using the chimney you already have—tends to land on the lower end, especially if a gas line already runs near the fireplace. New construction or a full built-in gas fireplace in a remodel, where framing and a new gas line are needed, runs higher. Almost all Lewisville homes are on natural gas service in this part of North Texas, which keeps fuel-line costs down compared to areas that rely on propane tanks.

Yes, and it's one of the most common projects among Lewisville homeowners with an original 1980s-2000s tract-home masonry fireplace. A simple gas log set can be added to an existing wood-burning firebox for $1,500-$3,000, while a full direct-vent gas insert—which seals the fireplace and dramatically improves efficiency and appearance—typically runs $3,500-$7,000. If your fireplace has burned oak, pecan, or mesquite over the years, converting means no more hauling firewood or cleaning out ash, and a flame that's ready in seconds.

Most homes inside Lewisville city limits are already connected to natural gas service, which is the standard fuel source for gas fireplaces in this part of North Texas—if your home already has a gas water heater, range, or furnace, adding a fireplace is usually a straightforward hookup. In pockets of unincorporated Denton County or newer developments still awaiting gas line extension, propane is a workable alternative, using either a small dedicated tank or a larger buried tank. Most gas fireplace models can be set up for either fuel; your installer configures the orifice and regulator accordingly.

It can, depending on the ignition system. Most modern gas fireplaces with IPI (intermittent pilot ignition) run on a small battery backup that kicks in automatically if the power drops, so the unit still lights on demand. Valor fireplaces take it a step further—their pilot generates its own electricity through a thermocouple, so there's no battery to remember at all. That distinction mattered during February 2021's Winter Storm Uri, when ERCOT grid strain led to extended outages across Oncor, TNMP, and Denton County Electric Cooperative territory. For Lewisville homeowners who remember that week, a gas fireplace that doesn't depend on the grid is a meaningful backup heat source, not just a nice-to-have.

A gas fireplace is a fully built-in unit framed into a wall—common in Lewisville's newer builds and remodels where there's no existing masonry chimney. A gas insert slides into an existing wood-burning fireplace opening, sealing it and using the chimney as a vent path, which is the typical route for homes with an original builder-grade fireplace. A gas stove is a freestanding unit that sits out in the room like a wood stove but runs on gas—less common in Lewisville's typical floor plans, but occasionally used in additions or rooms without a chimney at all. For most Lewisville homeowners upgrading an existing fireplace, an insert is the natural fit.

Generally yes—the City of Lewisville Building Inspections Department requires a permit for new gas line work and for structural changes tied to a built-in gas fireplace, and any gas line connection has to be run or verified by a licensed gas-fitter. Straightforward gas log set installations into an existing, already-vented fireplace sometimes fall outside permitting depending on scope, but insert conversions and new gas lines typically don't. A local installer who pulls permits routinely will handle this as part of the job rather than leaving you to sort it out.

Vented gas fireplaces and inserts draw combustion air from outside and exhaust it back outside through a sealed flue—they're the more universally recommended option and produce real, substantial heat. Vent-free (unvented) units burn gas directly into the room and are legal in Texas, but they come with strict room-size and ventilation requirements, and they add moisture to indoor air—a real consideration in Lewisville's humid North Texas summers and shoulder seasons, where extra indoor humidity isn't welcome. Most Lewisville homeowners converting an existing masonry fireplace go with a vented direct-vent insert rather than a vent-free log set, especially for daily use rather than occasional ambiance.

An annual inspection is worth doing even in a mild climate like Lewisville's, where a fireplace might only run a few dozen hours a year. A technician checks the burner, pilot assembly, gas connections, and venting, and cleans the glass and interior—usually $125-$200 for a standard visit. Because Lewisville fireplaces often sit unused for long stretches between cool snaps, a pre-season check each fall catches issues like pilot problems or dust buildup in the burner before the first cold night of the year.

For most Lewisville homes, no—wood-burning just doesn't make practical sense here. With an average winter low around 34°F and only a fairly short, mild heating season, there's rarely enough sustained cold to justify hauling and storing cordwood the way homeowners in Bozeman, MT or Fargo, ND do. Local oak, pecan, and mesquite are all available regionally and some hobbyists still enjoy an occasional wood fire for the smell and ritual, but as a heat source it's inefficient for North Texas's climate and adds ash, creosote, and chimney maintenance that most homeowners here would rather skip. Gas delivers the same instant ambiance without the upkeep, which is why it's the standard choice across Lewisville.

Open fireplaces suck—literally. As the fire burns, it consumes air your furnace already paid to heat and pulls it out through the chimney, so the house is actually colder after the fire goes out than before you lit it. An insert fixes this: it seals the chimney, puts fixed glass across the front, and turns that hole in your house into a real heat source.

Most fireplaces are a thin metal box—they heat fine, but you rely on the fan to move the warmth into the room. Radiant models use a thick cast-ceramic firebox, about an inch and a quarter thick, that soaks up the fire's heat and radiates roughly 25–30% more warmth into the room with no fan running. If you watch TV in the same room or want heat in a power outage, radiant is worth asking about.

It's a visit where a hearth professional measures your space, confirms the model you picked actually works in your home, and walks the specs—framing, gas line, venting, finish work—before anything is ordered. Some details you just can't know until you see the house. Never make a down payment without one; it's the single most-skipped step that burns buyers.

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.