Can You Have a Wood-Burning Fireplace in NYC?

The code passage that governs wood fireplaces

Chapter 9 of the 2022 New York City Mechanical Code covers specific appliances, including fireplaces. Its general section says that all solid fuel-burning fireplaces and appliances must be installed, altered and maintained in buildings in conformity with the applicable provisions of the New York City Air Pollution Control Code. It then adds that no new solid fuel-burning fireplaces or appliances are permitted except those that burn the types of fuel allowed by that code.

The wording covers two situations. For fireplaces already in a building, it links how they are maintained and altered to the Air Code. For anything new, whether a masonry fireplace, a factory-built unit or a stove, it makes the fuel the appliance is designed to burn the deciding question.

The same chapter applies NFPA 211, the national standard for chimneys, fireplaces and vents, alongside the city's own requirements, and it says fireplaces and solid fuel-burning appliances must not be installed in hazardous locations.

Where the list of allowed fuels lives

The Mechanical Code does not list the fuels itself. It points to the Air Pollution Control Code, usually called the Air Code. The city's Department of Environmental Protection page on air pollution and regulations says DEP is responsible for updating and enforcing the Air Code, and it links to the current text of the code and to its penalty schedule.

We do not paraphrase the Air Code's fuel rules here, because they are the part most likely to change and the part people most often get wrong when repeating them. Read the current text through DEP's page, or call 311 and ask to be pointed to DEP, before you rely on any summary, including an older one you read online or heard from a neighbor. DEP's page also notes that air quality and odor complaints go through 311.

Doors and combustion air on city fireplaces

Fuel is not the only topic in the chapter. It calls for tight-fitting noncombustible fireplace doors, to control air leakage, on masonry or factory-built fireplaces designed to allow an open burn, on decorative gas log units installed in a vented solid fuel fireplace, and on vented decorative gas fireplace appliances. It also requires fireplaces to have a source of combustion air under the fireplace construction provisions of the city's Building Code and the Mechanical Code's chapter on combustion air.

In practice, this matters most when a fireplace is being altered or a new one is going in, since doors and air supply are designed together with the firebox. If you are reviving an old fireplace, ask what the code expects of the doors and air supply for your specific setup before buying a door kit.

One flue per fireplace

Every fireplace and fireplace stove is to have its own separate flue under Chapter 9, and the chapter applies the same rule to fireplace stoves and room heaters, together with an independent source of combustion air. Masonry fireplaces themselves are to be built in accordance with the city's Building Code.

This is where older city buildings get complicated. A brownstone may have four or five fireplaces stacked floor above floor, each with its own flue running up the same chimney mass, and over a century some of those flues get broken through, merged or put to other uses. A flue that once served a parlor fireplace may now carry a boiler's exhaust. Only an inspection that looks at each flue individually tells you which fireplace connects to which flue, and whether anything else shares it.

Gas, pellet and other alternatives in the same chapter

Many New Yorkers who want a fire without the fuel question look at gas. The Mechanical Code says gas-fired appliances are regulated by the New York City Fuel Gas Code. Its section on factory-built fireplaces states that installing unvented gas-fired space heaters, gas stoves, gas logs, gas fireplaces and gas fireplace inserts is prohibited, so any gas option in the city is a vented one.

For pellet stoves, the code requires listed and labeled appliances installed according to their listing and adds that, if permitted, they are to be operated in accordance with the Air Code. Fireplace stoves and room heaters must also comply with the Air Code. Each of these routes leads back to that same document.

What an inspection of a city fireplace covers

Chapter 9 says inspections of solid fuel-burning heating appliances, chimneys and flues follow the city's Building Code. Separate from what the city requires, NFPA 211 adds a yearly inspection for every chimney, fireplace and vent. Whether a particular fireplace can be used safely is a physical question as much as a legal one. A technician working through an old city fireplace looks at:

Much of what turns up in city chimneys is age and weather rather than fuel. Decades of freeze-thaw cycles open the mortar at the crown and the top courses of brick, wind-driven rain soaks the masonry, and flues that sat unused for years collect debris. On a building with several fireplaces in one chimney mass, a problem at the top can affect every flue below it, which is why the roof-level masonry gets as much attention as the firebox.

• The firebox: firebrick, mortar joints and the back wall behind the grate
• The damper: whether it opens fully, closes and seals
• The smoke chamber and flue: lining, cracks, open joints, size for the opening
• Which flue the fireplace actually connects to, and what else may share it
• The crown, cap and exposed brick at the roof, where freeze-thaw does its damage
• Clearances between the fireplace, hearth and nearby wood framing or trim

Co-ops, condos and rental buildings

In apartment buildings, the city's rules are only part of the picture. Co-ops, condos and rental buildings often have house rules about fireplaces: whether they may be used at all, who is responsible for the chimney, how often it has to be swept, and what paperwork the board or managing agent wants on file. Some buildings ask for a recent inspection or sweep record before the first fire of the season.

Check the lease or house rules, and ask management before lighting anything. In a shared building, chimney work usually goes through the owner or board, because the chimney serves more than one unit and runs through common parts of the building.

Planning for a fireplace you can use

For an existing wood fireplace, the order is simple: have it inspected and swept if needed, then confirm against the current Air Code what it may burn. For a new fireplace or stove, start with the fuel question, then plan the appliance, flue and combustion air around the answer. Ask the city first, not after the masonry is built.

Nothing here is legal advice. The code text quoted above comes from the published 2022 Mechanical Code chapter, and rules change. When we inspect a city fireplace, we explain what we found in plain terms and put any repair in a free written estimate.