Steady Heat for Lake Mills' Long, Cold Winters.
With over 7,000 heating degree days and winter lows near 11°F, Lake Mills homes need heat that turns on instantly and keeps running. Find the right gas fireplace or insert and connect with a trusted local dealer.
Every Project Starts From One of These Five Situations
Instant heat built for a 7,000-degree-day winter.
Lake Mills sits in Jefferson County on the shores of Rock Lake, at a modest 825 feet of elevation, but its winters are no joke—average lows hover around 11°F and the area racks up roughly 7,099 heating degree days a year, putting it in the same cold-climate range as Minneapolis. Older homes near downtown often have an original masonry fireplace that was never built to carry a Wisconsin winter, and newer construction around the lake increasingly skips wood altogether in favor of a heat source that works at the flip of a switch.
Electric service in Lake Mills comes through a mix of Wisconsin Electric Power Co. and the municipal utility, Lake Mills Light & Water, and WEPCO (part of We Energies) also brings natural gas to much of the city. Outside city limits around the lake, propane fills the gap where gas mains don't reach. Either way, a properly sized gas fireplace or insert gives you zone heat that doesn't depend on stacking wood, works alongside your furnace on the coldest nights, and—with the right ignition system—keeps running through a winter power outage.

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Frequently Asked Questions
How much does a gas fireplace installation cost in Lake Mills?
Most gas fireplace and insert installations in the Lake Mills area run $4,000 to $9,500, depending on the unit, whether you're tying into an existing gas line, and how much venting work is involved. A direct-vent insert going into an existing masonry fireplace with gas already run to the house sits toward the lower end. Homes around Rock Lake that need a new propane tank set or a longer gas line run to reach the hearth typically land closer to the top of that range, sometimes higher. A local dealer will give you a firm number after seeing the space.
Can I convert my existing wood fireplace to gas?
Yes, and it's a common project in Lake Mills' older homes near downtown, many of which still have their original open masonry fireplace. A gas insert with a stainless liner run up the existing chimney is the standard approach, typically running $4,500 to $9,000 depending on the insert and whether new gas piping is needed. The conversion keeps the fireplace opening you already have while giving you real, controllable heat instead of a fireplace that mostly just loses heat up the flue.
Do I need natural gas, or should I plan on propane?
It depends on where in Jefferson County you're located. Inside Lake Mills city limits, natural gas service through WEPCO/We Energies is generally available, so if your home already has a gas furnace or water heater, adding a fireplace usually just means extending an existing line. Rural properties and many homes ringing Rock Lake outside the city are on propane, supplied by a local delivery company with an above- or below-ground tank. Nearly every gas fireplace on the market can be set up for either fuel—your installer just configures the correct orifice and regulator for what you have.
Will my gas fireplace still work if the power goes out?
Most will, with the right ignition system. Units with IPI (intermittent pilot ignition) run on a small battery backup that kicks in the moment power drops, so the fireplace still lights on demand. Valor fireplaces handle this a little differently—the pilot's thermocouple generates its own electricity, so there's no battery to remember at all. Given how far a Jefferson County ice storm can knock out power, that's a real consideration when a local dealer walks you through unit options.
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 slides into an existing masonry fireplace and uses the current chimney as its vent path, which fits a lot of Lake Mills' older housing stock. A gas stove is a freestanding cast-iron or steel unit that sits on the floor like a wood stove but runs on gas or propane, which works well in a cabin or addition where there's no fireplace opening at all. Most homeowners here with an existing hearth end up choosing an insert.
Do I need a permit to install a gas fireplace in Lake Mills?
Yes. New gas fireplace or insert installations require a building permit, either through the City of Lake Mills Building Inspection Department for in-city addresses or through Jefferson County for properties outside city limits, plus a gas line permit pulled by a licensed gas fitter. Most established hearth dealers handle all of this as part of the install, coordinating the gas work, venting, and inspection so you're not managing separate trades yourself.
Should I get a vented or vent-free gas fireplace?
Vented (direct-vent) units pull combustion air from outside and exhaust it back outside through sealed venting—they're the standard choice and the safest option in a cold, well-sealed Wisconsin home. Vent-free units burn without external venting and release some combustion byproducts into the room; Wisconsin allows them but they come with strict room-size and ventilation rules, and they're a harder sell in a tightly built home during a long heating season. For most Lake Mills installations, a direct-vent unit is the more practical and more commonly installed choice—ask a local dealer to walk you through both if you're weighing it.
How often should a gas fireplace be serviced?
Plan on an annual inspection, ideally in early fall before the unit sees regular use through a long Wisconsin winter. A qualified technician checks the burner, pilot assembly, venting, and gas connections, and cleans the glass and interior. It's a shorter visit than a wood chimney sweep, but skipping it is how pilot and ignition problems go unnoticed until the coldest night of the year. Expect to pay somewhere in the $150 to $250 range for a standard annual service call.
Should I go with gas, electric, or wood in Lake Mills?
Wood-burning fireplaces and stoves are uncommon as a new installation in Lake Mills—smaller in-town lots and the age of the existing masonry fireplaces mean most homeowners upgrading a hearth here choose gas or electric rather than adding new wood-burning equipment. Electric fireplaces are a low-cost, no-venting option for supplemental warmth or ambiance in a bedroom or bonus room, but at residential rates from Wisconsin Electric Power Co. (around 19 cents/kWh) or the lower municipal rate through Lake Mills Light & Water (around 14 cents/kWh), electric resistance heat gets expensive fast as a primary heat source through a 7,099-degree-day winter. Gas delivers more consistent, higher-output heat for less operating cost and can run zone heat alongside your furnace, which is why it's the more common choice for anyone treating the fireplace as real supplemental heat rather than just ambiance.
What's the difference between an insert and a zero-clearance fireplace?
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.
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.
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.
Can I install a fireplace myself?
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.
Nearby Dealers
Hearth shops serving Lake Mills 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 →
Al Beyers Indoor Comfort System-Cambridge, Wi
R & W Heating
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