Ambiance heat for the Florida Keys, done right.

Yes, though almost entirely for ambiance rather than heat. With an average winter low near 63°F and only about 56 heating degree days a year, Monroe County isn't a heating-fuel market the way somewhere like Fargo, ND is. Gas fireplaces and gas fire features (often propane-fed, since natural gas lines are limited on the islands) are popular for patios, pool areas, and living rooms where homeowners want the visual and the occasional chilly-evening warmth. Electric fireplaces are common in condos and rentals across Key West and Marathon because they need no venting and no gas line—plug it in and it works. Wood stoves and pellet stoves are essentially not installed here; the fuel doesn't move and the appliances aren't suited to the humidity or lack of cold demand.

You can, but it's uncommon and most local retailers will steer you toward gas or electric instead. A handful of older Key West homes have decorative wood-burning fireplaces original to the structure, and some homeowners keep them for occasional atmosphere rather than heat. Local oak, mahogany, and pine are available regionally, but there's no established firewood supply chain built around home heating the way there is in a place like Buffalo, NY. If you specifically want wood, a retailer can discuss it, but expect fewer local options and higher relative cost for something the climate simply doesn't demand.

Generally yes for gas, often no for plug-in electric. Gas fireplace, insert, or fire feature installations typically require a building permit plus a licensed gas-fitter for the propane or gas line connection—permits in the Keys run through the relevant city building department (Key West, Marathon, Islamorada, Layton, Key Colony Beach) or the Monroe County Building Department for unincorporated areas. Hurricane-zone construction rules also apply to any exterior gas installation, including tie-downs and wind-load considerations for outdoor fire features. Electric fireplaces that simply plug into an existing outlet usually don't need a permit; built-in electric units requiring new wiring or a dedicated circuit do. Most local retailers handle the permitting as part of the install.

No—Monroe County has no significant air quality concerns tied to hearth appliances, and there are no winter burn bans or inversion advisories like you'd see in a mountain basin. Given how rarely wood is burned for heat here, it's simply not a local air quality issue. The bigger environmental consideration for any hearth installation in the Keys is hurricane and flood-zone building code compliance, not emissions.

Most gas and electric service technicians are based around Marathon or Key West and travel the Overseas Highway to reach Islamorada, Big Pine Key, and the outlying keys—expect a modest travel fee for jobs further up or down the chain. Salt air and humidity mean gas line connections, venting components, and electrical fittings should be inspected more frequently than in a dry inland climate; annual checks catch corrosion before it becomes a bigger repair. After hurricane season, it's worth having any outdoor gas fire feature or exterior venting checked for storm damage before use.

Gas fireplace, insert, or fire feature: roughly $4,500–$11,000 depending on whether it's an indoor unit tied into existing gas service or an outdoor feature requiring new propane line runs and wind-rated construction. Electric fireplace: $200–$3,000 for the unit itself, with $400–$1,200 in labor for anything beyond a simple plug-in—most wall-mount and built-in electric installs fall in that labor range. Wood and pellet appliances aren't a meaningful cost category here since they're rarely installed; a retailer can quote one-off if you specifically want it, but pricing won't be competitive with mainland cold-climate markets.

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.

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.

Five come up constantly: budgeting for the unit but not the full job (vent, gas line, electrical, finish work); drowning in options instead of starting from style and fuel; buying without an in-home preview; handing installation to a handyman instead of a pro; and giving up out of sheer indecision. Every one is avoidable with a clear plan—step one, step two, step three.

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.