Keep Your Family Warm and Safe—No Matter What

Because wood heating is a minority choice here, fewer dealers in the St. Louis market specialize in it exclusively—but full-service hearth retailers that also handle gas work will still do wood installs. A wood insert into an existing masonry fireplace typically runs $3,500 to $6,500, including a stainless liner sized to the flue. A freestanding stove with new Class A chimney and floor protection runs higher, often $5,500 to $9,000, since Des Peres homes rarely have an existing wood chimney to reuse. Get a firm number from an in-home visit rather than a phone quote—liner length and hearth pad requirements vary a lot house to house.

For most Des Peres homeowners, gas is the more practical everyday choice—it's instant, clean, and the infrastructure is already in most neighborhoods. Wood tends to make sense for a narrower set of reasons: you already have a masonry fireplace you want to actually use instead of just look at, you want heat that keeps working when Union Electric's lines go down in an ice storm, or you just want the smell and sound of a real oak or hickory fire. None of that is unusual, but it's worth being honest that wood is the exception here, not the assumed default—which is exactly why talking to a local dealer about your specific home matters more than it would somewhere colder.

Given the mild winter lows here (averaging around 22°F) most Des Peres homes don't need the biggest catalytic units built for northern-tier cold. A small stove (up to 1,000 sq ft) suits a den or bonus room; a medium stove (1,000-2,000 sq ft) covers a typical main living area; full-home primary heat above 2,000 sq ft is uncommon here since most homeowners keep gas or electric as the primary system and use wood for supplemental or backup heat. Oversizing is the more common mistake locally—a stove sized for a much colder climate will smolder and glaze the flue with creosote if run low and slow in a mild St. Louis winter.

If your Des Peres home already has a working masonry fireplace—common in the city's older colonial and traditional builds—an insert is almost always the better move. It uses the chimney you already have, and it turns a fireplace that loses more heat up the flue than it puts into the room into an actual heat source. A freestanding stove makes more sense if you don't have an existing fireplace, want it in a room that doesn't have one (a finished basement, for example), or want maximum heat output rather than the look of a built-in unit. A local dealer can tell you within minutes which setup your chimney supports.

Yes—new wood-burning appliance installations require a permit through the City of Des Peres Building Department, and the unit itself needs to meet current EPA 2020 NSPS emissions standards. Most hearth dealers handle the permit application and inspection scheduling as part of the install, so it's rarely something homeowners have to manage solo. Des Peres doesn't carry the air quality non-attainment restrictions that some Western cities have, so there are no seasonal burn curtailment periods to plan around here—you're just working through a standard building permit.

Since Des Peres winters are moderate compared to true cold-climate markets, you generally don't need an extreme long-burn catalytic stove built for 20-hour, sub-zero overnight lows. A mid-size non-catalytic stove from a maker like Pacific Energy or Lopi burns clean, is easier to operate day to day, and matches the region's heating load well. If you specifically want the stove as ice-storm backup heat and plan to run it hard during outages, a catalytic model does hold a longer, steadier fire on a single load—ask a local dealer to walk through both given your home's layout.

An annual inspection is the standard recommendation from the Chimney Safety Institute of America, and it holds here whether you burn wood occasionally for ambiance or regularly through the winter. Late summer or early fall—before burning season starts—is the typical window local sweeps book up for. If you're using the stove mainly as emergency backup heat and it sits unused most winters, don't skip the inspection just because it burns less; a chimney that sits idle can still develop blockages or animal nests that need to be cleared before the next fire.

Des Peres isn't near public forest land, so there's no cutting-permit route like you'd find out West—firewood here comes from local tree services, landscaping companies, and seasonal firewood suppliers around St. Louis County. Oak and hickory are the most commonly available species locally, with walnut and maple also showing up, and a seasoned cord typically runs somewhere in the $250-$350 range depending on species and whether it's delivered and stacked. Buying a season ahead and letting it dry under cover matters more here than in drier Western climates, given Missouri's humid summers.

Gas wins on convenience: instant on-off, no ash, no wood storage, and it fits the natural gas infrastructure already serving most of the city. Wood wins on resilience and character: it keeps producing heat when the power's out—which matters after the ice storms that periodically hit St. Louis County—and it gives you a real fire with local oak or hickory rather than a flame behind glass. Plenty of Des Peres homeowners end up with both: gas as the everyday fireplace, wood as the backup or the fireplace they actually load and light on a cold Saturday. A local dealer can help you figure out whether one or both make sense for your specific house.

New wood stoves are 70%+ efficient, so far less heat goes up the flue—which also means less draft to get a fire established. The rule: build a genuinely hot fire for about 45 minutes before you choke it down. Skip that and you get smoke in the room, creosote in the chimney, and a fire that never takes off. Most performance complaints trace straight back to this.

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.

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.

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.