Find the right gas fireplace for your Union County home.
With a long, cold winter season and winter lows near 19°F, Union County homes from Lewisburg to Mifflinburg to New Berlin rely on steady, dependable heat. Find the right gas fireplace or insert, and connect with a vetted local dealer who can install it correctly.
Every Project Starts From One of These Five Situations
Reliable heat for a long Susquehanna Valley winter.
Union County sits in Pennsylvania's Buffalo Valley, tucked between ridgelines along the West Branch Susquehanna River. With a long, cold heating season and a 5A climate zone, winters here run long and cold—closer to Madison, Wisconsin than to Philadelphia in terms of sustained heating load, even if the coldest nights aren't quite as extreme. Homes in Lewisburg, Mifflinburg, and the smaller boroughs and townships scattered across the county lean on a mix of wood, gas, and pellet heat, and gas has become a standard choice for homeowners who want consistent warmth without the daily work of tending a fire.
Whether a home is on natural gas service in Lewisburg or running on propane out in the more rural stretches of the county toward New Berlin or Hartleton, a gas fireplace or insert delivers instant, thermostatically controlled heat—useful for supplementing a furnace during the coldest stretches of a Union County winter or for keeping a living room comfortable without running the whole-house system harder than it needs to. I match Union County homeowners with a local dealer who knows the venting requirements and gas line realities of this area, rather than guessing from a big-box showroom.

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Frequently Asked Questions
How much does a gas fireplace installation cost in Union County?
Gas fireplace and insert installations in Union County typically run in a range determined by the unit itself, the venting path, and whether new gas line work is required. A direct-vent insert going into an existing masonry fireplace with gas already run to the room sits toward the lower end. A new built-in gas fireplace for a remodel or addition—with framing, venting, and a fresh gas line—runs higher, and homes needing a propane tank setup or a longer gas line extension will land at the top of the range. A local dealer will give you a firm number after seeing the space in person.
Can I convert my existing wood fireplace to gas in Union County?
Yes—this is one of the more common projects for older homes around Lewisburg and Mifflinburg, many of which still have the original masonry fireplace from a house built decades ago. A gas insert slides into that existing firebox and uses the chimney (fitted with a stainless liner) as its venting path, so you keep the look of the fireplace while gaining real, consistent heat output. Whether the home runs on natural gas or propane changes the fittings and regulator setup, but not the basic approach. A local dealer will confirm whether your existing chimney and hearth clearances are suitable before quoting the job.
Do I need natural gas service, or can I run a fireplace on propane?
Both work well in Union County. Natural gas service reaches parts of Lewisburg and some of the more built-up areas, but a large share of the county—including much of the rural land around New Berlin, Hartleton, and the outlying townships—runs on propane instead. Most gas fireplace models can be configured for either fuel with the correct orifice and regulator. If you're on propane already for a water heater or range, adding a fireplace on the same tank is usually straightforward; if not, your local dealer can coordinate with a propane supplier for tank installation.
Will a gas fireplace still work if the power goes out?
Most modern gas fireplaces will, which matters in a county where winter storms occasionally take down power lines along the ridges and rural roads outside Lewisburg. Units with intermittent pilot ignition (IPI) run on a small battery backup that keeps the fireplace working on demand even without electricity. Valor fireplaces take a slightly different route—the pilot's thermocouple generates the small amount of electricity the unit needs, so there's no battery to remember to replace. Either way, it's worth asking your dealer which ignition system a given model uses before you buy, especially if you're leaning on the fireplace as backup heat.
What's the difference between a gas fireplace, insert, and stove?
A gas fireplace is a built-in unit, typically installed during new construction or a remodel where there's no existing masonry opening. A gas insert is built to slide into an existing fireplace and use the current chimney for venting—the most common upgrade path for the older farmhouses and Victorian-era homes found throughout Union County's boroughs. A gas stove is a freestanding unit, similar in footprint to a wood stove, that can sit almost anywhere with proper clearance and venting. For most homeowners here with an existing hearth, an insert is the simplest and most cost-effective route.
Do I need a permit to install a gas fireplace in Union County?
Yes. Gas fireplace installations require both a building permit and a gas line permit through the relevant local jurisdiction, and the gas line work itself has to be done by a licensed gas-fitter. Most established hearth dealers serving Union County handle this permitting as part of the installation, coordinating the venting, gas line, and inspection so you aren't left managing separate trades and separate paperwork on your own.
What's the difference between vented and vent-free gas fireplaces?
Vented (direct-vent) gas fireplaces pull combustion air from outside and exhaust the combustion byproducts back outside through a sealed pipe—they're the standard choice and code-compliant everywhere, including Pennsylvania. Vent-free units burn gas directly into the room without external venting; they're technically more fuel-efficient but release water vapor and small amounts of combustion byproducts into your living space, and they come with strict room-sizing and ventilation rules. Vent-free models are legal in Pennsylvania, but for Union County homes I generally point people toward direct-vent units—they deliver strong, real heat without any tradeoff on indoor air quality, which matters over a long heating season like this one.
How often does a gas fireplace need to be serviced?
Plan on an annual inspection, ideally before the start of the heating season each fall. A technician checks the burner, pilot assembly, venting, and gas connections, and cleans the glass and interior—a much simpler visit than a wood chimney sweep, but not one to skip. Local hearth service providers typically charge in the $150–$250 range for this kind of annual visit, and it's the easiest way to catch a failing igniter or a venting issue before it becomes a bigger repair or a safety concern.
Gas vs. wood—which makes more sense for a Union County home?
Wood is the traditional choice here for a reason: Union County has abundant local hardwood—oak, hickory, maple, and cherry are all common—and a wood stove or fireplace keeps working during a power outage without any electrical dependency. Gas trades that self-sufficiency for convenience: instant on-off heat, no ash or wood handling, and a more consistent output that pairs well with a furnace on the coldest days of a winter that runs long and cold here. Plenty of homes in the county run both—wood in a den or family room for ambiance and backup, gas in the main living space for everyday use. A local dealer can walk through which setup fits your specific home and how it's heated now.
Why is a fireplace insert so efficient?
An insert does two things: it seals the chimney completely, so you stop losing air you already paid to heat, and it radiates warmth into the room through the firebox and glass. Most add a heat-exchange fan that pulls cool room air underneath, wraps it around the hot firebox, and pushes it back out warm. Your home is more efficient before you've even lit the first fire.
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.
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.
What is an in-home preview and do I need one?
It's a visit where a hearth professional measures your space, confirms the model you picked actually works in your home, and walks the specs—framing, gas line, venting, finish work—before anything is ordered. Some details you just can't know until you see the house. Never make a down payment without one; it's the single most-skipped step that burns buyers.
Stove and Fireplace Dealers in Union County
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