Instant heat for Walworth County's coldest nights.
With winter lows averaging 6°F and roughly 7,549 heating degree days a year along Lake Oahe, gas is the fuel most Walworth County homeowners lean on for dependable heat. Find the right unit and get matched with a trusted local dealer.
Every Project Starts From One of These Five Situations
Reliable heat when the prairie wind won't quit.
Walworth County sits on the west bank of Lake Oahe in north-central South Dakota—Selby as the county seat, with Glenham, Akaska, Java, and part of Mobridge spread across open, windswept plains. Classified 6A, the county runs about 7,549 heating degree days a year, on par with Bismarck just up the Missouri River, and winter lows averaging 6°F are common from November through March, with wind chill routinely pushing conditions well below that. With a population under 4,200 spread across a lot of open ground, homes here need heat that starts instantly and doesn't depend on a wood supply chain that doesn't really exist locally.
Walworth County has no national forest or managed public timberland, so while cottonwood, oak, and ponderosa pine grow along the river bottoms and in farmstead shelterbelts, wood was never built out as a supported heating fuel here the way it is in forested parts of the country—there's no cutting-permit office, and firewood tends to be a supplemental, self-gathered resource rather than a primary heat source. Gas fills that gap. Natural gas mains reach parts of Mobridge, but most of unincorporated Walworth County—the farms and small towns around Selby, Glenham, and Akaska—run on propane, delivered by tank and refilled by regional suppliers. Either fuel powers a gas fireplace or insert that lights instantly, holds a steady temperature through a blizzard, and in the right models keeps working even when the power doesn't.

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Frequently Asked Questions
How much does a gas fireplace installation cost in Walworth County?
Most gas fireplace and insert installs in a rural county like Walworth run somewhere between $3,500 and $9,000, depending on the unit, whether you're converting an existing wood-burning fireplace, and how far the propane line has to run from the tank. A direct-vent insert into an existing masonry fireplace, on a home that already has propane service, sits at the lower end. New construction, a fresh tank setup, or a longer line run to a detached shop or addition pushes costs toward the higher end. Because natural gas mains are limited outside the Mobridge area, most quotes here are built around propane from the start rather than assuming a gas main is nearby—your local dealer will confirm this during an in-home visit.
Can I convert my existing wood fireplace to gas?
Yes, and it's a common project for older farmhouses around Selby and Glenham that still have a masonry wood fireplace from decades ago. A gas insert typically slides into the existing firebox, using a stainless liner run up the original chimney, or vents directly out the back or side wall depending on the fireplace's construction. Since wood heat was never heavily supported here—no local cutting permits, no managed timberland—most homeowners converting an old fireplace are doing it specifically to get away from hauling and seasoning wood, and to get heat that starts at the flip of a switch instead of a match.
Do I need natural gas, or should I plan on propane?
For nearly everyone in Walworth County, plan on propane. Natural gas service reaches only parts of Mobridge; the rest of the county—Selby, Glenham, Akaska, and the surrounding farm country—runs on propane delivered and stored in a tank on the property. Most gas fireplaces and inserts sold today can be configured for either fuel, so the choice comes down to what's already serving your home. If you're building new or don't yet have a tank, your local dealer can coordinate with a regional propane supplier to size and place one as part of the install.
Will my gas fireplace work during a power outage?
Most will, which matters here—winter storms and high winds off Lake Oahe knock out rural power lines with some regularity. Units with intermittent pilot ignition (IPI) carry a battery backup, usually a set of AA batteries inside the unit, that kicks in automatically when the power drops so the fireplace still lights on demand. Valor units go a step further: the pilot's thermocouple generates its own electricity, so there are no batteries to remember at all. For a Walworth County home where a blizzard can mean hours without grid power, that self-sufficiency is worth asking about when you're comparing models with a local dealer.
What's the difference between a gas fireplace, gas insert, and gas stove?
A gas fireplace is a fully built-in unit framed into a wall—the right call for new construction or a remodel without an existing hearth. A gas insert drops into an existing masonry fireplace opening and uses the chimney (with a liner) or a direct rear vent, which is the common route for older Walworth County farmhouses upgrading a drafty wood fireplace. A gas stove is a freestanding, cast-iron-style unit that sits on its own hearth pad and can go almost anywhere a vent can reach—useful for a shop, addition, or a home without a chimney at all. A local dealer will walk your specific space to recommend which fits.
Do I need a permit to install a gas fireplace in Walworth County?
Generally yes—a building permit through the Walworth County building office in Selby, plus sign-off on the gas line work itself. Because most installs here run on propane rather than a municipal gas main, the line and tank connection typically needs to be handled by a licensed propane technician working alongside your installer. Most hearth dealers coordinate this permitting and gas-fitting as part of the install so you're not managing multiple trades yourself.
What's the difference between vented and vent-free gas fireplaces?
Vented (direct-vent) fireplaces draw combustion air from outside and exhaust the byproducts back outside through a sealed pipe—they're the cleanest, safest option and the standard recommendation in a cold, tightly-sealed climate like Walworth County's. Vent-free units burn directly into the room without external venting; they're legal in South Dakota but require strict room-sizing and oxygen-sensor compliance, and they add moisture and combustion byproducts to indoor air that's already working overtime to stay warm through a 7,500-HDD winter. For most homes here, a direct-vent unit is the better long-term choice, but a local dealer can walk through both options for your specific room.
How often should my gas fireplace be serviced?
Plan on an annual inspection, ideally before the coldest stretch of the season sets in. A technician checks the burner, pilot assembly, venting, and gas connections, and cleans the glass and interior—a quicker job than a wood chimney sweep, but just as important, especially on propane systems where a technician can also confirm tank pressure and line integrity ahead of winter. Expect to pay somewhere in the $150–$250 range for a standard annual visit.
Gas vs. wood—which makes sense in Walworth County?
Wood heat is uncommon here for a practical reason: Walworth County has no national forest or managed timberland, no cutting-permit office, and the cottonwood, oak, and ponderosa pine that do grow along the river and in shelterbelts are gathered informally rather than supplied as a heating fuel. A few rural households burn scavenged wood for supplemental warmth or ambiance, but it isn't set up as a primary system the way it is in forested parts of the country. Gas—almost always propane outside Mobridge—is the fuel actually built into how homes here heat: instant on, no seasoning or hauling, and steady output through a county that averages 7,549 heating degree days a year. For most Walworth County homeowners, that makes gas the practical default rather than a lifestyle choice.
Can I put a TV above my fireplace?
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.
Is my gas fireplace wasting gas?
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.
Can a fireplace actually lower my heating bill?
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.
How much should I budget for a fireplace?
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.
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Tell us about your home and your propane or gas setup, and we'll match you with a trusted local dealer and send over a free Project Guide & Parts List—the exact parts, including the vent kit, for your gas fireplace project in Walworth County.
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