Can You Add a Fireplace to an NYC Condo, Co-op or Penthouse?

A fireplace is one of the most requested additions we hear about from Manhattan and Brooklyn apartment owners, and one of the most misunderstood. The good news is that almost any condo, co-op or penthouse can have a beautiful fireplace. The question is which kind, because the building, the code and the board narrow the field quickly. The easiest path runs through our electric fireplaces and water vapor models; a vented gas fireplace is possible in the right apartment; three other options are effectively closed.

Which fireplaces are allowed in an NYC apartment?

Here are the five options in order of feasibility for an existing Manhattan or Brooklyn apartment. The sections below explain each one.

Is an electric or water vapor fireplace the easiest option?

Yes, by a wide margin. There is no combustion, no flue, no gas line and no exterior penetration, so the conversation with your managing agent becomes an ordinary interior alteration. Most of the work is carpentry and finishing, plus a circuit. Many built-in models can be hardwired at 120 or 240 volts, and in New York City that wiring belongs with a licensed electrician.

A large linear electric fireplace such as the Dimplex IgniteXL Bold 74 installs front facing, as a corner or as a three-sided bay from the same unit, and adds up to 8,530 BTU of heat when wired at 240 volts. Water vapor fireplaces go further on realism: ultrasonic mist lit from below reads as smoke and flame, and it is cool to the touch. They need a water supply, either a reservoir you refill or an optional plumb kit, which your board may treat as plumbing work.

If you own in a new building covered by NYC Local Law 154, it is effectively the only fireplace that fits. Our guide to electric fireplaces for all-electric homes goes deeper on sizing and heat.

Can you add a gas fireplace to an NYC condo or co-op?

Sometimes, and only a sealed, vented type. A direct vent gas fireplace draws combustion air from outside and exhausts outside through a coaxial pipe, with the firebox sealed behind glass. That is what makes it workable in an apartment. Five things have to line up:

• A gas supply. The apartment needs gas service and capacity, and a new branch line run to the fireplace location.
• A vent path outside. The pipe has to reach an exterior wall or the roof within the manufacturer's maximum run, and the cap has to meet the manual's clearances from windows, doors, balconies, corners and air intakes. In a high-rise, this is usually the deciding factor.
• Building approval. Any new opening in the facade or roof affects common elements, so the board and its engineer will review it.
• A DOB permit. NYC's Administrative Code requires a permit to install or alter a gas system, and gas piping is excluded from the minor alteration exemption.
• A licensed master plumber. Gas piping work in the city must be performed by, or under the direct supervision of, a licensed master plumber.

Two code points frequently cause confusion. Local Law 154, the city's gas ban, covers new building filings, including alterations DOB requires to be filed as new buildings. An ordinary renovation of an existing apartment is outside it. New York State's All-Electric Buildings Act is also aimed at new construction, and as of October 2026 its enforcement remains suspended while the court challenge runs its course. Separately, New York's appliance standard requires decorative gas fireplaces sold in the state to be direct vent unless they are marked for replacement use only.

Wall-hung designs are worth knowing about. The SOLAS TWENTY6 is 7-5/8 inches deep, hangs on a bracket with no framed chase, and vents straight out the back on an outside wall. On an inside wall it runs up to 20 feet vertical or 10 feet horizontal, and SOLAS lists an optional power vent that extends runs up to 130 feet.

Can a penthouse vent a gas fireplace through the roof?

Often, and this is where gas becomes realistic in a high-rise. A top-floor unit can run the vent vertically through the roof, which removes the problem of a cap sitting under a neighbor's window. The Napoleon Elevation X 42, for example, is approved for vent runs up to 40 feet vertical with Napoleon components.

A roof penetration is still a building matter. Expect the board's engineer to review the route, the cap location near bulkheads and mechanical equipment, and the flashing. If the roof is under warranty, the building may want its own roofer to make the opening. Floors below the penthouse rarely have this option, because a vertical vent would have to pass through apartments above.

Vent-free gas, wood and ethanol: why they rarely work

Are vent-free gas fireplaces legal in NYC?

No. Vent-free (ventless) gas fireplaces and log sets are sold in much of the country, but the NYC Fuel Gas Code does not allow unvented gas fireplaces, so they cannot be installed in the five boroughs. If a listing calls a gas unit ventless, it is not an NYC product.

Can you build a new wood-burning fireplace in NYC?

No. Local Law 38 of 2015, effective May 6, 2016, limits new solid fuel fireplaces to fuels the city's Air Pollution Control Code allows, which in practice ended new wood-burning construction. Existing working fireplaces were not targeted. Our guide to wood-burning fireplace rules in NYC covers what owners of existing hearths can do.

Are ethanol fireplaces allowed in NYC apartments?

Not simply. The 2022 NYC Fire Code has a section written for alcohol-fueled decorative flame devices (FC 308.6). As we read it, it bars portable units in homes, caps fuel capacity at 64 fluid ounces unless the FDNY authorizes more, requires FDNY approval for units built into walls or cabinetry, and limits stored fuel to one gallon. Many boards ban open flame outright. Our ethanol fireplace buying guide covers the details; for most apartments, water vapor gives a similar look without the approvals.

What will a co-op or condo board ask for?

Every building writes its own alteration agreement, so treat this as a typical list rather than your building's rules. In our experience boards ask for most of the following, and co-op and condo house rules are often stricter than city code:

• Plans. Drawings and specifications, stamped by a New York licensed architect or engineer when DOB permits are involved, reviewed by the building's own architect or engineer at your cost.
• Insurance. Certificates from every contractor naming the owner, the managing agent and the corporation or condominium as additional insureds, with general liability limits often set at one million dollars per occurrence, plus workers' compensation and disability coverage.
• Licensed trades. Proof of NYC licenses for the plumber and electrician, and lead-safe certification in buildings built before 1978.
• Work hours and schedule. Many buildings allow work only on weekdays within set hours, some limit major work to the summer, and agreements often set a completion date with per-day fines for overruns.
• Fees and deposits. Application and review fees, a refundable security deposit, and sometimes a fee for building staff time.
• Sign-offs. Proof that permits were closed out with DOB when the work is complete.

Gas lines and risers get extra scrutiny, and some buildings will not allow a new gas branch at all. Ask the managing agent about gas before you go further with a direct vent design. Our NYC fireplace code guide summarizes the city rules a board's engineer will check against.

Adding a fireplace in Manhattan and Brooklyn

Manhattan. Most fireplace inquiries we get from Manhattan involve high-rise condos and prewar co-ops. In both, the exterior wall is the constraint: curtain walls, operable windows and facade rules leave few places for a vent cap below the top floor, which is why electric and water vapor dominate and penthouses are the exception for gas.

Brooklyn. Brownstone and townhouse floor-throughs often have original chimney breasts. An existing masonry chimney can sometimes be relined for a vented gas insert, which avoids a new facade opening; our guide to gas inserts versus direct vent fireplaces explains the difference. Much of brownstone Brooklyn also sits in historic districts. The Landmarks Preservation Commission requires a permit before work that affects the exterior of a designated building, so a new vent cap on a landmarked facade adds an approval to the list.

Our guide to the best fireplace for an NYC apartment compares the options side by side.

Our recommended models

We chose these for apartments specifically: shallow or flexible installs, strong flame realism, and approval paths boards understand.

Electric Fireplaces Water Vapor Fireplaces Direct Vent Gas Fireplaces Fireplace Inserts

Which should you choose?

For most Manhattan and Brooklyn apartments, we recommend starting with electric or water vapor. The flame quality is excellent now, and the approvals are straightforward. Pursue gas when the building gives you a clear vent path, and confirm gas service with the managing agent before you design around it.

Frequently asked questions

Can I put a gas fireplace in my NYC apartment?

Only a direct vent model, and only if the apartment has gas, the vent can reach an exterior wall or the roof within the manufacturer's limits, and the board approves. The work needs a DOB permit and a licensed master plumber.

Does Local Law 154 stop me from adding a gas fireplace to my existing condo?

Generally no. Local Law 154 applies to new building filings, including alterations DOB requires to be filed as new buildings. An ordinary renovation of an existing apartment is not covered, though your building's own rules may still say no.

Do I need board approval for an electric fireplace?

Usually yes for a built-in unit, because it involves framing, finishes and electrical work under your alteration agreement. A plug-in unit that needs no construction is often treated as furniture, but check with your managing agent.

Can I convert my apartment's old wood-burning fireplace to gas?

Sometimes. An existing chimney may be relined for a vented gas insert if it passes inspection and the building allows it. The work still needs a DOB permit and a licensed master plumber.

Is a ventless gas fireplace allowed in a NYC co-op?

No. The NYC Fuel Gas Code does not allow unvented gas fireplaces anywhere in the five boroughs, whatever the building type.

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Written by the NYC Fireplaces & Outdoor Kitchens team. Last reviewed October 2026. We sell, install and service the products discussed here.

Sources: NYC DOB, Local Law 154 Building Electrification, NYC Admin Code 28-408 (master plumbers), NYC Admin Code 28-105 (permits), NYC DOB, Local Law 38 of 2015 code update, NYC 2022 Construction Codes, 2022 NYC Fire Code, FC 308.6, NYSERDA, NYS Appliance Standards: Gas Fireplaces, Mulhern Gas Co. v. Mosley docket, NYC Landmarks Preservation Commission, applications, Habitat, alteration policy essentials, Brick Underground, essentials for board approval, manufacturer installation manuals for the Dimplex IgniteXL Bold, SOLAS TWENTY6 and Napoleon Elevation X. Codes, building rules and specifications change; always confirm with DOB, the FDNY, your managing agent and the manufacturer's current installation manual.