{"data":{"id":"us-nyc/n.y.c.-admin.-code-mc-801","jurisdiction":"us-nyc","citation":"N.Y.C. Admin. Code § MC 801","heading":"Section MC 801: General","body":"801.1 Scope.\n\nThis chapter shall govern the installation, maintenance, design, minimum safety requirements, repair and approval of factory-built chimneys, chimney liners, vents and connectors, and field built chimneys and connectors for all nongas-fired appliances. This chapter shall also govern the utilization of masonry chimneys. Gas-fired appliances shall be vented in accordance with the New York City Fuel Gas Code. The construction, repair, maintenance and approval of masonry chimneys shall be regulated by the New York City Building Code. Venting systems shall be designed in accordance with this chapter and comply with the requirements of the New York City Air Pollution Control Code.\n\n801.1.1 Existing chimneys and vents.\n\nExisting chimneys and vents shall comply with the requirements of Section 28-104.13 of the New York City Administrative Code and Sections 801.1.1.1 through 801.1.1.8 of this code.\n\n801.1.1.1 Responsibility of owner of taller building.\n\nWhenever a building is erected, enlarged, or increased in height so that any portion of such building, except chimneys or vents, extends higher than the top of any existing chimneys or vents within 100 feet (30 480 mm), the owner of such new or altered building shall have the responsibility of altering such chimneys or vents to make them conform with the requirements of this chapter. A chimney or vent that is no longer connected with a fireplace or combustion or other equipment for which a chimney or vent was required, shall be exempt from this requirement. Such alterations shall be accomplished by one of the following means or a combination thereof:\n\n1. Carry up the existing chimneys or vents to the height required in this chapter.\n\n2. Offset such chimneys or vents to a distance beyond that required in this chapter from the new or altered building provided that the new location of the outlet of the offset chimney or vent shall otherwise comply with the requirements of this chapter.\n\nSuch requirements shall not dispense with or modify any additional requirements that may be applicable pursuant to rules of the New York City Department of Environmental Protection.\n\n801.1.1.1.1 Chimney and vent plan.\n\nApplications for a new or altered building shall include a chimney and vent plan submitted pursuant to Section 107.18 of the New York City Building Code.\n\n801.1.1.2 Protection of draft.\n\nAfter the alteration of a chimney or vent as required by this section, it shall be the responsibility of the owner of the new or altered building to provide any mechanical equipment or devices necessary to maintain the proper draft in the equipment.\n\n801.1.1.3 Written notification, plans and required documents.\n\nThe owner of the new or altered building shall notify the owner of any building that may require a chimney or vent to be altered. Notification, plans and required documents shall comply with the requirements of Sections 801.1.1.3.1 through 801.1.1.3.3.\n\n801.1.1.3.1 First notice.\n\nWritten notice in a form acceptable to the department shall be provided to the building owner not less than 60 days prior to a request for permit for construction on the new or altered building. Such notice shall include a request for access to determine the need to alter the existing chimney or vent and a description of such work. Notice shall be sent by regular mail and certified mail, return receipt requested. A copy of such return receipt shall be filed with the department.\n\n801.1.1.3.2 Second notice.\n\nWritten notice in a form acceptable to the department shall be provided to the building owner not more than 45 days following commencement of work after a permit has been issued for the new or altered building. Such notice shall include a request for access to determine the need to alter the existing chimney or vent and a description of such work. Notice shall be sent by regular mail and certified mail, return receipt requested. The second notice shall also be posted by a licensed process server at the public entrance of the building requiring a chimney or vent to be altered. A copy of such return receipt and proof of service by the licensed process server shall be filed with the department.\n\nExceptions:\n\n1. A second notice shall not be required where an application to alter the affected chimney or vent has been filed with the department.\n\n2. A second notice shall not be required where access is granted and conditions are observed that result in a determination that chimney or vent alteration is not required and a revised chimney and vent plan is submitted to the department.\n\n801.1.1.3.3 Plans and required documentation for alteration work.\n\nWhere access is granted and conditions are observed that result in a determination that chimney or vent alteration is required, plans for such alteration work shall be provided to the owner of the existing building and a request for written consent to submit construction documents and perform such work shall be made.\n\n801.1.1.4 Approval.\n\nThe construction documents for the proposed chimney extension, alteration or relocation shall be submitted to the department pursuant to Section 28-104 of the New York City Administrative Code. No certificate of occupancy shall be issued for the new building pursuant to Section 28-118.23 of the New York City Administrative Code until the work associated with such construction documents for the proposed chimney extension, alteration or relocation has been signed-off by the department.\n\nExceptions:\n\n1. A certificate of occupancy may be issued where access is granted and conditions are observed that result in a determination that chimney or vent alteration is not required and a revised chimney or vent plan is submitted pursuant to Section 107.18 of the New York City Building Code documenting such.\n\n2. A certificate of occupancy may be issued in accordance with Section 28-118.23, Exception 2 of the New York City Administrative Code.\n\n801.1.1.5 Refusal of consent.\n\nIf consent is not granted by the owner of the affected building to do the alteration work required by this section, such owner shall signify his or her refusal in writing to the owner of the new or altered building and to the commissioner; and the owner of the new or altered building having provided the notices required by Section 801.1.1.3 shall thereupon be released from any responsibility for the proper operation of the equipment due to loss of draft and for any health hazard or nuisance that may occur as a result of the new or altered building. Such responsibilities shall then be assumed by the owner of the previously constructed building. Similarly, should such owner fail to grant consent within 45 days from the date of the second notice or fail to signify his or her refusal, he or she shall then assume all responsibilities as prescribed above.\n\n801.1.1.6 Procedure.\n\nIt shall be the obligation of the owner of the new or altered building to:\n\n1. Prepare and submit a chimney and vent plan to the department pursuant to Section 107.18 of the New York City Building Code;\n\n2. Provide required notification pursuant to Section 801.1.1.3 of this code;\n\n3. Provide plans pursuant to Section 801.1.1.3.3 of this code;\n\n4. Prepare and submit construction documents to the department pursuant to Section 28-104 of the New York City Administrative Code for the alteration of existing chimneys or vents which conform to the requirements of this chapter;\n\n5. Obtain permit(s) for the proposed work in accordance with Section 28-105 of the New York City Administrative Code;\n\n6. Schedule this work so as to create a minimum of disturbance to the occupants of the affected building;\n\n7. Provide such essential services as are normally supplied by the equipment while it is out of service;\n\n8. Where necessary, support such extended chimneys, vents and equipment from this building or to carry up such chimneys or vents within his or her building;\n\n9. Provide for the maintenance, repair, and/or replacement of such extensions and added equipment;\n\n10. Make such alterations of the same material as the original chimney or vent so as to maintain the same quality and appearance, except where the owner of the chimney or vent shall give his or her consent to do otherwise. All work shall be done in such fashion as to maintain the architectural aesthetics of the existing building. Where there is practical difficulty in complying strictly with the provisions of this item, the commissioner may permit an equally safe alternative;\n\n11. Comply with the tenant protection plan requirements of Section 28-120 of the New York City Administrative Code; and\n\n12. Comply with inspection and sign-off requirements of Section 28-116 of the New York City Administrative Code.\n\n801.1.1.7 Existing violations.\n\nAny existing violations on the previously constructed equipment shall be corrected by the owner of the equipment before any equipment is added or alterations made at the expense of the owner of the new or altered building.\n\n801.1.1.8 Variance.\n\nThe commissioner may grant a variance in accordance with the provisions of this code.\n\n801.2 General.\n\nEvery fuel-burning appliance shall discharge the products of combustion to a vent, factory-built chimney or masonry chimney, except for appliances vented in accordance with Section 804. The chimney or vent shall be designed for the type of appliance being vented.\n\nException: Commercial cooking appliances vented by a Type I hood installed in accordance with Section 507.\n\n801.2.1 Design.\n\nChimneys and vents shall be designed and constructed so as to provide the necessary draft and capacity for each appliance connected to completely exhaust the products of combustion to the outside air. The temperature on adjacent combustible surfaces shall not be raised above 160°F (71.1°C). Chimneys and vents shall be designed to resist the effects of condensation that would cause deterioration of the chimney or vent.\n\n801.2.2 Outlets.\n\nThe outlet shall be arranged so that the flue gases are not directed so that they jeopardize people, overheat combustible structures, or enter building openings in the vicinity of the outlet.\n\n801.2.3 Support.\n\nChimneys and vents shall not be supported by the equipment they serve unless such equipment has been specifically designed for such loads.\n\n801.2.4 Oil-fired appliances.\n\nOil-fired appliances shall be vented in accordance with this code and NFPA 31.\n\n801.2.5 Gas fired appliances.\n\nGas fired appliances shall be vented in accordance with the New York City Fuel Gas Code.\n\n801.3 Masonry chimneys.\n\nMasonry chimneys shall be constructed in accordance with the New York City Building Code.\n\n801.4 Positive flow.\n\nVenting systems shall be designed and constructed so as to develop a positive flow adequate to convey all combustion products to the outside atmosphere.\n\n801.5 Design.\n\nVenting systems shall be designed in accordance with this chapter and comply with the requirements of the New York City Air Pollution Control Code.\n\n801.6 Minimum size of chimney or vent.\n\nExcept as otherwise provided for in this chapter, the size of the chimney or vent, serving a single appliance, except engineered systems, shall have a minimum area equal to the area of the appliance connection.\n\n801.7 Solid fuel-burning appliance flues.\n\nThe cross-sectional area of a flue serving a solid fuel-burning appliance shall be not greater than three times the cross-sectional area of the appliance flue collar or flue outlet.\n\n801.8 Abandoned inlet openings.\n\nAbandoned inlet openings in chimneys and vents shall be closed by an approved method, sealed air-tight and permanently labeled as abandoned.\n\n801.9 Positive pressure.\n\nWhere an appliance equipped with a forced or induced draft system creates a positive pressure in the venting system, the venting system shall be designed and listed for positive pressure applications.\n\n801.10 Connection to fireplace.\n\nConnection of appliances to chimney flues serving fireplaces shall be in accordance with Sections 801.10.1 through 801.10.3.\n\n801.10.1 Closure and access.\n\nA noncombustible seal shall be provided below the point of connection to prevent entry of room air into the flue. Means shall be provided for access to the flue for inspection and cleaning.\n\n801.10.2 Connection to factory-built fireplace flue.\n\nAn appliance shall not be connected to a flue serving a factory-built fireplace unless the appliance is specifically listed for such installation. The connection shall be made in accordance with the appliance manufacturer's instructions.\n\n801.10.3 Connection to masonry fireplace flue.\n\nA connector shall extend from the appliance to the flue serving a masonry fireplace such that the flue gases are exhausted directly into the flue. The connector shall be provided with access or shall be removable for inspection and cleaning of both the connector and the flue. Listed direct connection devices shall be installed in accordance with their listing.\n\n801.11 Multiple solid fuel-burning appliances prohibited.\n\nA solid fuel-burning appliance or fireplace shall not connect to a chimney passageway venting another appliance.\n\n801.12 Chimney entrance.\n\nConnectors shall connect to a chimney flue at a point not less than 12 inches (304.8 mm) above the lowest portion of the interior of the chimney flue.\n\n801.13 Cleanouts.\n\nFactory-built chimneys and vents shall be provided with a cleanout opening or access door at the base of the chimney or vent installed in accordance with the manufacturer's instructions. Masonry and metal chimneys shall be provided with a cleanout opening having a minimum height of 6 inches (152.4 mm). The upper edge of the opening shall be located not less than 6 inches (152.4 mm) below the lowest chimney inlet opening. The cleanout shall be provided with a tight-fitting, noncombustible cover of a minimum size of 8 inches by 8 inches (203.2 mm by 203.2 mm). Cleanouts shall comply with the requirements of the New York City Air Pollution Control Code.\n\nException: Cleanouts shall not be required for chimney flues serving masonry fireplaces, if such flues are provided with access through the fireplace opening.\n\n801.14 Connections to exhauster.\n\nAppliance connections to a chimney or vent equipped with a power exhauster shall be made on the inlet side of the exhauster. Joints and piping on the positive pressure side of the exhauster shall be listed for positive pressure applications as specified by the manufacturer's instructions for the exhauster or in accordance with this code.\n\n801.15 Fuel-fired appliances.\n\nMasonry chimneys utilized to vent fuel-fired appliances shall be located, constructed and sized as specified in the manufacturer's instructions for the appliances being vented.\n\n801.16 Flue lining.\n\nMasonry chimneys shall be lined. The lining material shall be compatible with the type of appliance connected, in accordance with the appliance listing and manufacturer's instructions. Listed materials used as flue linings shall be installed in accordance with their listings and the manufacturer's instructions.\n\n801.16.1 Residential and low-heat appliances (general).\n\nFlue lining systems for use with residential-type and low-heat appliances shall be limited to the following:\n\n1. Clay flue lining complying with the requirements of ASTM C 315 or equivalent. Clay flue lining shall be installed in accordance with the New York City Building Code.\n\n2. Listed and labeled chimney lining systems complying with UL 1777 (new and existing chimneys) or ULC-S635 (existing chimneys) or ULC-S640 (new chimneys).\n\n3. Other approved materials that will resist, without cracking, softening or corrosion, flue gases and condensate at temperatures up to 1,800°F (982.2°C).\n\n4. Existing firebrick chimneys may be used to vent appliances if the firebrick is acid resistant and lab tested. The brick and mortar must be inspected in accordance with Section 1705.32 of the New York City Building Code.\n\n801.17 Space around lining.\n\nThe space surrounding a flue lining system or other vent installed within a masonry chimney shall not be used to vent any other appliance. This shall not prevent the installation of a separate flue lining in accordance with the manufacturer's instructions and this code.\n\n801.18 Existing chimneys and vents.\n\nWhere an appliance is permanently disconnected from an existing chimney or vent, or where an appliance is connected to an existing chimney or vent during the process of a new installation, the chimney or vent shall comply with Sections 801.18.1 through 801.18.4.\n\n801.18.1 Size.\n\nThe chimney or vent shall be resized as necessary to control flue gas condensation in the interior of the chimney or vent and to provide the appliance or appliances served with the required draft. For the venting of oil-fired appliances to masonry chimneys, the resizing shall be in accordance with NFPA 31.\n\n801.18.2 Flue passageways.\n\nThe flue gas passageway shall be free of obstructions and combustible deposits and shall be cleaned if previously used for venting a solid or liquid fuel-burning appliance or fireplace. The flue liner, chimney inner wall or vent inner wall shall be continuous and shall be free of cracks, gaps, perforations or other damage or deterioration which would allow the escape of combustion products, including gases, moisture and creosote. Where an oil-fired appliance is connected to an existing masonry chimney, such chimney flue shall be repaired or relined in accordance with NFPA 31.\n\n801.18.3 Cleanout.\n\nMasonry chimneys shall be provided with a cleanout opening complying with Section 801.13.\n\n801.18.4 Clearances.\n\nChimneys and vents shall have airspace clearance to combustibles in accordance with the New York City Building Code and the chimney or vent manufacturer's instructions.\n\nException: Masonry chimneys without the required airspace clearances shall be permitted to be used if lined or relined with a chimney lining system listed for use in chimneys with reduced clearances in accordance with UL 1777 or ULC-S635. The chimney clearance shall be not less than permitted by the terms of the chimney liner listing and the manufacturer's instructions.\n\n801.18.4.1 Fireblocking.\n\nNoncombustible fireblocking shall be provided in accordance with the New York City Building Code.\n\n801.19 Multistory prohibited.\n\nCommon venting systems for appliances located on more than one floor level shall be prohibited.\n\n801.20 Reserved.\n\n801.21 Termination requirements.\n\nTerminations shall comply with the appliance listing and manufacturer's instructions, and the following:\n\n1. Chimneys, vents and flues serving appliances or fireplaces with outlet temperatures less than 600°F (315.6°C) shall extend at least 3 feet (914.4 mm) above the highest construction, such as a roof ridge, parapet wall or penthouse within 10 feet (3048 mm) of the chimney vent or flue outlet, whether the construction is on the same building as the chimney or on another building. Any chimneys, vents or flues located in an area that is more than 10 feet (3048 mm) from such construction, but not more than the distance determined by Equation 8-1, shall be at least as high as the highest construction in such area. For purposes of determining the required height of a chimney, such construction shall not include other chimneys, vents or open structural framing.\n\n2. Chimneys serving appliances or fireplaces with outlet temperatures between 600°F (315.6°C) and 1,000°F (537.8°C) shall extend at least 10 feet (3048 mm) above the highest construction, such as a roof ridge, or parapet wall or penthouse within 20 feet (6096 mm) of the chimney outlet, whether the construction is on the same building as the chimney or on another building. Any chimneys located in an area more than 20 feet (6096 mm) from such construction, but not more than the distance determined from Equation 8-1, shall be at least as high as the highest construction in such area. For purposes of determining the required height of the chimney, such construction does not include other chimneys, vents or open structural framing.\n\n3. Chimneys serving appliances or fireplaces with outlet temperatures greater than 1,000°F (537.8°C) shall extend at least 20 feet (6096 mm) above the highest construction, such as roof ridge, parapet wall, penthouse, or other obstruction within 50 feet (15 240 mm) of the chimney outlet, whether the construction is on the same building as the chimney or in another building. Any chimneys located in an area that is more than 50 feet (15 240 mm) from such construction, but not more than the distance determined from Equation 8-1, shall be at least as high as the highest construction located in such area. For purposes of determining the required height of the chimney, such construction does not include other chimneys, vents, or open structural framing.\n\n4. Termination caps shall not be permitted. A drain shall be installed in accordance with Section 801.22. A positive means shall be provided to prevent water from entering the appliance.\n\nException: Termination caps shall be permitted on listed factory-built chimneys unless otherwise prohibited by the New York City Air Pollution Control Code.\n\n5. Decorative shrouds shall not be installed at the termination of factory-built chimneys except where such shrouds are listed and labeled for use with the specific factory-built chimney system and are installed in accordance with the manufacturers' instructions.\n\n6. The following formula shall be used in order to determine the distance referred to in Items 1, 2 and 3 of this section:\n\nD = F x ÖA\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t(Equation 8-1)\n\nwhere:\n\nD\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t=\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tDistance, in feet, measured from the center of the chimney, vent or flue outlet to the nearest edge of the construction. If a single chimney is divided into multiple smaller flues or chimneys, measure from the center of the chimney outlet that is closest to the nearest edge of the construction.\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tF\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t=\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tValue determined from Table 801.21.\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tA\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t=\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tFree area, in square inches, of chimney flue space outlet. If a single chimney is divided into multiple smaller flues or chimneys, the total aggregate free area of such flue and chimney outlets shall be used to calculate \"A\".\n\nTable 801.21 \"F\" Factor for Determining Chimney Distances\n\nType of Fuel\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"F\" Factor\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t600°F (315.6°C) and less\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t600°F (315.6°C) to 1,000°F (537.8°C)\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tGreater than 1,000°F (537.8°C)\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tNo. 2 Fuel Oil\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t2.5 \n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t2.5 \n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t3\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tNo. 4, 6 Fuel Oil, Solid Fuels\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t3 \n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t3 \n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t3\n\n801.22 Drains.\n\nA drain shall be provided for all chimneys and gas vents to remove rain water and condensation. The drain shall be not less than 1 inch (25.4 mm) in diameter and shall be equipped with an appropriately-sized p-trap with automatic trap seal primer in accordance with Section 1002 of the New York City Plumbing Code or a float drain trap installed in accordance with the manufacturer's requirements. The drain shall be sized by the design engineer and shall be suitable for the chimney area. For listed chimneys and gas vents, the connection tap into the chimney shall be determined by the manufacturer and connected to the drain piping in accordance with the listing and installation instructions. On all outdoor chimneys and gas vents, the connection and drain shall be installed indoors as close as practicable to the chimney base to prevent freezing.\n\n801.23 Draft controls.\n\nThe installation of draft controls shall comply with Sections 801.23.1 through 801.23.5.\n\n801.23.1 Draft control devices.\n\nWhere a draft control device is part of the appliance or is supplied by the appliance manufacturer, it shall be installed in accordance with the manufacturers' instructions. In the absence of manufacturers' instructions, the device shall be attached to the flue collar of the appliance or as near to the appliance as practical.\n\n801.23.2 Additional devices.\n\nAppliances requiring a controlled chimney draft shall be permitted to be equipped with a listed barometric draft regulator or automatic damper installed and adjusted in accordance with the manufacturers' instructions. Automatic dampers shall be installed in accordance with Section 803.6.\n\n801.23.3 Thermal safety (spill) switches.\n\nThermal safety (spill) switches shall be installed on barometric draft regulators and all other appurtenances that allow dilution air into chimneys or vents. Thermal safety (spill) switches shall be interlocked with all of the appliances connected to the same chimney or vent.\n\n801.23.4 Location.\n\nBarometric draft regulators shall be installed in the same room or enclosure as the appliance in such a manner as to prevent any difference in pressure between the regulator and the combustion air supply.\n\n801.23.5 Positioning.\n\nBarometric draft regulators shall be installed in the position for which they were designed with reference to the horizontal and vertical planes and shall be located so that the relief opening is not obstructed by any part of the appliance, adjacent construction or installation hardware.\n\n801.24 Obstructions.\n\nDevices or items that protrude into, impede or restrict the flow of vent gases shall not be installed in a vent connector, chimney, or vent.\n\n801.25 Outdoor chimneys and vents.\n\nOutdoor portions of chimneys or vents shall be provided with integral R-8 insulation or be provided with an R-8 insulation enclosure, where exposed to the outdoors for more than 5 feet (1524 mm).","path":["New York City Administrative Code","Title 28","Chapter 8: New York City Mechanical Code"],"source_url":"https://files.amlegal.com/pdffiles/NewYorkCity/Admin/XML.zip","current_through":"Local Law 2026/135 (enacted August 31, 2026)","vintage":"","retrieved_at":"2026-09-06T02:48:57Z","sha256":"a3fe0e12f88231cdaa820659d993dc70296fa20518f736442e39c90f06916f44","source_id":"us-nyc","stale":false,"prev":"us-nyc/n.y.c.-admin.-code-mc-710","next":"us-nyc/n.y.c.-admin.-code-mc-802"},"notice":"GroundRules: Original legal text. Not legal advice."}