Brooklyn since 2014All five boroughsSame-day response during business hours

What is NYC AC § 27-854?

Quick Answer

This section outlines the general requirements for the design and construction of chimneys and gas vents, ensuring they provide adequate draft and capacity for exhausting combustion products. The statute specifies temperature limits on adjacent combustible surfaces and addresses issues related to condensation. Applies to building owners responsible for chimney and vent installations.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

Michael Nacmias - Founding PartnerMichael Sargo - Partner
From the team atNacmias Law Firm, PLLCBrooklyn-based attorneys representingproperty owners across all five boroughsMeet the team →

§ 27-854 General requirements.

AC § 27-854

Chimneys or gas vents shall be designed and constructed so as to provide the necessary draft and capacity to completely exhaust the products of combustion to the outside air, and to satisfy the following conditions: (a) Temperature. The temperature on adjacent combustible surfaces shall not be raised above one hundred sixty degrees Fahrenheit.

(b)Condensation. The condensation shall not be developed to an extent that can cause rapid deterioration of the chimney or vent.

Common Questions

Our team

Meet the people you will work with

Free case review

Have a matter that touches § 27-854?

Free 15-minute case review with the attorney handling your matter. Same-day response during business hours across all five boroughs — OATH hearings, Housing Court, and real estate closings.

Or email us

[email protected]

An attorney reads every message.

  • Same-day response

    During business hours

  • Direct attorney access

    Same lawyer from intake to close

  • Flat-fee pricing

    On most OATH and closing matters