Warm, on-demand heat built for Bellefontaine Neighbors winters.

Plan on roughly $3,800 to $9,500 depending on the scope. A direct-vent insert dropped into an existing brick fireplace—common in this suburb's postwar ranch homes—usually lands on the lower end, since the masonry structure and chimney chase are already in place. A new built-in gas fireplace for a remodeled room or addition, requiring fresh gas line runs and new venting through an exterior wall, sits toward the top of that range. A local dealer will need to see your existing firebox or framing to give you a firm number.

Yes, and it's one of the most common projects in this part of St. Louis County. A lot of Bellefontaine Neighbors homes were built with a masonry firebox meant for oak or hickory, but active wood burning is rare here in practice—small lots, no easy cordwood source, and most people would rather not deal with ash and creosote. A gas insert with a stainless liner run up the existing flue solves that, giving you the look of a working fireplace without ever splitting wood. Most conversions run $4,000 to $8,500 depending on whether new gas line needs to be run to the hearth.

Nearly all of Bellefontaine Neighbors sits within Spire's natural gas service territory, so most homes already have a gas line for the furnace, water heater, or range, and extending it to a fireplace is a relatively small job for a licensed gas-fitter. Propane is uncommon here given how built-out the natural gas infrastructure already is in this part of St. Louis County—it's really only a consideration for a detached structure or an outbuilding that sits far from the existing gas meter.

Most will, and it's worth checking before you buy. Units with IPI (intermittent pilot ignition) run their electronic ignition off a small battery pack that kicks in automatically when the power drops, so summer storms rolling through the St. Louis area won't leave you without heat. Standing-pilot models and certain Valor fireplaces go a step further, generating their own electricity from the pilot's thermocouple with no battery to remember at all. Ask your installer which ignition system is on any unit you're comparing.

A built-in gas fireplace is framed into a wall, which suits a remodel or an addition without an existing masonry opening. A gas insert is sized to slide into an existing brick firebox—the more common route in Bellefontaine Neighbors' older ranch homes, since it reuses the chimney chase that's already there. A gas stove is freestanding on its own hearth pad, similar in shape to a wood stove but running off a gas line instead of cordwood, and it's a good option if you don't have an existing fireplace opening and don't want to frame a new built-in unit.

Yes. Bellefontaine Neighbors, like most municipalities in St. Louis County, requires a building permit for the installation and a separate gas line permit pulled by a licensed gas-fitter, since Missouri code requires gas work to be done by a licensed trade. Most established hearth dealers in the St. Louis metro coordinate this as part of the job—permit, gas line hookup, and final inspection—so you're not managing multiple trades and city sign-offs yourself.

Vented, direct-vent units draw combustion air from outside and exhaust it back outside through sealed pipe, which makes them the safer, code-preferred choice and the one most local dealers install by default. Vent-free units are legal in Missouri and burn directly into the room, subject to minimum room-size rules, and since Bellefontaine Neighbors has no air quality restrictions or inversion concerns to factor in, some homeowners do choose them for a small supplemental room. For a primary living space or a bedroom, though, most installers here still recommend direct-vent for the added safety margin.

Once a year is the standard recommendation, ideally in late summer or early fall before you start relying on it through the colder months. A technician checks the burner, pilot assembly, and gas connections, and cleans the glass, which typically runs $150 to $250 for a routine visit. Skipping this on a unit that runs daily through a St. Louis winter is the usual cause of ignition failures on the coldest nights, which is exactly when you don't want the fireplace to fail.

Gas wins on real heat output and lower running cost for a room you use daily through a Missouri winter, since it doesn't depend on your Union Electric (Ameren Missouri) bill at $0.1256 per kWh climbing during a cold snap. Electric fireplaces, by contrast, install for a fraction of the cost—often $400 to $1,200 versus several thousand for gas—and need no gas line or venting at all, which makes them a fast, flexible option for a bedroom, apartment, or rental where a permanent gas hookup isn't practical. Given how rare wood burning is in this dense suburb, most homeowners here are choosing between these two rather than considering a wood stove.

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.

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.

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.

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.