Comfortable Heat for Union's Piedmont Winters.
Instant, controllable heat for Union County homes—most of it running on propane rather than piped natural gas. Get matched with a local dealer who installs it correctly.
Every Project Starts From One of These Five Situations
Propane fills the gap where natural gas lines don't reach.
Union sits in the South Carolina Piedmont at about 631 feet, in climate zone 3A with a winter heating load a bit lower than the Upstate average and an average winter low near 29°F. That's a mild climate compared to the mountain Upstate or the Midwest—you won't need a stove that can hold a fire for 20 hours at sub-zero temperatures the way a homeowner in Duluth or Bozeman would. But Union still gets enough cold, damp nights from December through February that a gas fireplace earns its keep, especially in the older mill-village homes around town that were built with a fireplace in nearly every room and no central heat to speak of.
Unlike larger Upstate cities, Union isn't served by a piped natural gas utility—there's no Duke Energy or Dominion Energy gas franchise running lines through town. That means the large majority of "gas fireplace" installs in Union actually run on propane, delivered and stored in a tank on the property. It changes a few things about the project (tank placement, delivery contracts, slightly higher per-BTU fuel cost) but not the end result: a local propane-fired insert or fireplace that lights instantly and holds steady heat through a cold snap, with electric service from Duke Energy Carolinas, Dominion Energy South Carolina, or Lockhart Power Co keeping the fan and ignition running in the background.

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Frequently Asked Questions
How much does a gas fireplace installation cost in Union?
Because most Union homes run on propane rather than piped natural gas, a typical installation runs $3,500 to $8,500, and that range usually includes the appliance, venting, and gas line work from an existing tank. If you don't already have a propane tank on the property, add $500 to $1,500 for a tank setup and delivery agreement with a local propane supplier—Union has several that service Union County. Converting an existing masonry fireplace in one of the town's older mill-village homes into a direct-vent gas insert tends to land in the middle of that range, since the chimney is already in place.
Can I convert my existing wood fireplace to gas?
Yes, and it's a common project in Union's older housing stock, where many homes built in the early-to-mid 1900s still have a working masonry fireplace in the living room. A propane-fired insert slides into the existing firebox and vents through a stainless liner run up your current chimney, so you keep the mantel and surround you already have. Expect $4,000 to $8,000 depending on the insert and whether the home already has a propane tank and line in place. Homes with an existing propane appliance—a water heater or range, for instance—usually see lower costs since the fuel infrastructure is already there.
Do I need natural gas, or does my gas fireplace run on propane?
In Union, plan on propane. There's no piped natural gas utility serving the town, so gas fireplaces here are almost always propane-fired, with fuel stored in an above-ground or buried tank on the property and refilled by a local delivery service. This isn't a downgrade—modern propane fireplaces produce the same instant, controllable heat as natural gas units, just at a slightly higher per-BTU fuel cost. Your local hearth dealer will set the appliance's orifice and regulator for propane during installation, and can help you set up a delivery contract if you don't already have a tank.
Will my gas fireplace work during a power outage?
Most will, with the right ignition system. Units with IPI (intermittent pilot ignition) run on AA batteries that kick in automatically when the power drops, so the fireplace lights on demand just like normal. That matters in Union—ice storms move through the Piedmont most winters and have knocked out Duke Energy Carolinas and Lockhart Power Co service for days at a time in past events. Valor fireplaces take a different approach: the pilot's thermocouple generates its own electricity, so there's no battery to remember or replace. Ask your local dealer which ignition system is on any unit you're considering if outage backup matters to you.
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 choice for new construction or a remodel without an existing hearth. A gas insert drops into an existing masonry firebox, which describes a lot of Union's older homes, and uses your current chimney as the vent path with a liner. A gas stove is a freestanding cast-iron or steel unit that sits on a hearth pad, often chosen for a den or converted porch that never had a fireplace. For most Union homeowners working with a fireplace that's been there since the house was built, an insert is the straightforward answer.
Do I need a permit to install a gas fireplace in Union?
Yes—expect to need a building permit and, since propane is involved, sign-off on the gas line work through the Union County Building Codes Department. A licensed gas-fitter has to run and pressure-test the line from the tank to the appliance, which is one reason it pays to hire a hearth dealer who coordinates the propane supplier, the gas-fitter, and the inspection rather than leaving you to line up separate trades.
What's the difference between vented and vent-free gas fireplaces?
Vented (direct-vent) units draw combustion air from outside and exhaust it back outside through sealed venting—cleanest option, and the one most local dealers recommend by default. Vent-free units burn fuel directly into the room without exterior venting; they're legal to install in South Carolina, unlike in states such as California or Colorado, but they come with room-size minimums and an oxygen depletion sensor requirement. In Union's smaller mill-era homes, room size can actually rule out a vent-free unit in a tight space, so it's worth confirming square footage with your dealer before you fall in love with a specific model.
How often should my gas fireplace be serviced?
Once a year, ideally before the first cold snap in November. A technician checks the burner, pilot assembly, gas connections, and venting, and cleans the glass and interior—usually $150 to $250 for the visit. This matters more with a propane system than people expect, since tank-fed lines and regulators benefit from the same annual look as the appliance itself.
Gas vs. wood—which is right for my home?
Union County sits inside the Sumter National Forest's Enoree Ranger District, and oak, pine, and hickory are all common locally—plenty of wood-burning households here still cut and split their own. Wood offers real heat output during outages without relying on batteries, plus the lowest fuel cost if you're cutting your own. Propane-fired gas wins on convenience: no ash, no chimney sweep, instant on-off, and steadier heat for daily living-room use. A lot of Union homes end up with both—gas in the main room for everyday comfort, an older wood-burning fireplace kept in service elsewhere in the house for backup and ambiance.
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.
Why is my open fireplace making my house colder?
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.
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.
Does a fireplace add value to my home?
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.
Nearby Dealers
Hearth shops serving Union and the surrounding area. Every listing shows whether it is a WhyFire partner, a dealer we have verified as authorized for the brands we recommend, or a local business carrying hearth products. No manufacturer pays for placement. How we verify dealers →
Blue Sky Chimney Sweeps
Clinton Newberry Natural Gas
Superior Plus Propane D/b/a Freeman Gas - Spartanburg
Edisto Gas- Chester
Western Carolina Stone
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