Real Warmth, Without the Wood Pile, for Creve Coeur Homes.

Costs vary by project type, but most Creve Coeur homeowners land somewhere between $3,500 and $10,000. A direct-vent gas insert dropped into an existing masonry fireplace—common in the ranch and split-level homes built here in the 1960s and 70s—tends to run toward the lower end, especially if a gas line already serves the house. A new built-in gas fireplace for a remodel or addition, with framing and a fresh gas line run from Spire's meter, sits higher. A local dealer will give you a firm number after seeing your fireplace opening and gas line access in person.

Yes, and it's one of the more common projects local hearth dealers see in Creve Coeur. Many of the homes in this part of St. Louis County still have the original open masonry fireplace from the 1960s or 70s, and a gas insert with a stainless liner run up the existing chimney converts it into a sealed, efficient heat source without changing the look of the room from the outside. Since wood-burning is uncommon here to begin with—most owners never used the fireplace for real heat—this conversion is usually about upgrading an underused feature into something people actually turn on.

Most of Creve Coeur is served by Spire's natural gas network, so if your furnace or water heater already runs on gas, adding a fireplace is straightforward—your installer just taps into the existing line. Propane is uncommon inside the city itself but remains an option for homes on the fringes of the service area or in situations where running a new gas line isn't practical. Either fuel works in the same fireplace models with the correct orifice kit.

Most direct-vent gas fireplaces with intermittent pilot ignition (IPI) include a battery backup that keeps the unit operable during an outage—you'll still get heat and flame on demand, just on battery power instead of household current. Valor fireplaces go a step further: their pilot assembly generates its own electricity through the thermocouple, so there's no battery to remember or replace. For Creve Coeur, where ice storms occasionally knock out power for a day or two, that's worth asking your local dealer about when you're comparing units.

A gas fireplace is a fully built-in unit framed into a wall—the right choice for new construction or a remodel. A gas insert slides into an existing masonry firebox, which fits a lot of the original brick fireplaces still standing in Creve Coeur's older ranch and split-level homes. A gas stove is a freestanding cabinet-style unit that sits on the floor and vents through a wall or existing chimney, useful in a room without a fireplace at all. For most homeowners here upgrading a fireplace they already have, an insert is the simplest and most common path.

Yes. The City of Creve Coeur's Building Division requires a building permit for gas fireplace installations, and any new gas line work needs to be pulled by a licensed gas-fitter and inspected. Most established hearth dealers handle the permitting and inspection scheduling as part of the installation, which is one of the real advantages of working with a local pro instead of a big-box purchase—they coordinate Spire's gas connection, the city inspection, and the venting all at once.

Vented (direct-vent) units draw combustion air from outside and exhaust it back outside through sealed venting—they're the most common choice and the one local dealers recommend for full-time use. Vent-free units burn without any exterior venting and release some combustion byproducts into the room; Missouri allows them, but they come with strict room-size and ventilation requirements and aren't a good fit for smaller, well-sealed rooms. For most Creve Coeur homes, a direct-vent insert or fireplace gives you real heat output and better indoor air quality without the trade-offs of a vent-free unit.

Plan on an annual inspection—a technician checks the burner, pilot assembly, venting, and gas connections, and cleans the glass and interior. It's a much lighter lift than chimney sweeping for a wood stove, but skipping it is how pilot and ignition problems go unnoticed. Local gas appliance service providers in the St. Louis area typically charge somewhere in the $150 to $250 range for a standard annual visit.

Gas gives you real heat output—enough to actually take the chill off a room on a 22-degree January morning—plus the look and sound of a live flame, and it can run during a power outage with battery backup. Electric fireplaces skip the gas line and venting entirely, run on standard household current through Union Electric (Ameren Missouri), and install almost anywhere in an afternoon, but they're better suited to supplemental warmth and ambiance than as a real heat source. Wood isn't much of a factor in this comparison—wood-burning stoves are genuinely uncommon in Creve Coeur given the subdivision lot sizes and lack of any local cutting or permitting infrastructure. For most homeowners here, it comes down to gas for real warmth versus electric for simplicity and lower upfront cost.

An insert is a fireplace that slides into a pre-existing wood-burning fireplace—if you don't have one, there's nothing to insert it into. A zero-clearance fireplace is built into a framed wall, which makes it the answer for remodels and new construction. Simple test: existing masonry fireplace means insert; blank or framed wall means zero-clearance.

If it was installed more than 15 years ago, probably. Older gas fireplaces keep a standing pilot light burning all the time, and that little flame can cost a couple hundred dollars a year. Newer models use pilot-on-demand ignition—the pilot lights only when you use the fireplace and goes out when you turn it off.

On average, a fireplace adds back to the home about the same amount you spent installing it. Add the monthly savings from heating the rooms you actually use instead of the whole house—often hundreds of dollars a year—and the value case is strong before you even count what a fire does for how your family uses the room.

If you're putting a fire in your house on purpose, it's best to work with an expert. Unless you're genuinely experienced in framing, gas line, vent pipe, and the national code on clearances to combustibles, have a professional do it—and ideally the same company that sells you the fireplace, so warranty, service, and liability all live under one roof.