N.Y.C. Admin. Code § 27-863.01: § 27-863.01 Chimney limitations and tests.

No solid fuel fireplace, fireplace stove or room heater shall be installed or altered unless connected to a chimney which complies with the limitations and testing requirements set forth in table 15-6.1.

TABLE 15-6.1 Chimney Limitations and Tests for Solid Fuel Fireplaces, Fireplace Stoves and Room Heaters

Occupancy

Reference Standard

Test Standard

Temperature

Number of Tests

J-2 & J-3 limited to 40 feet and three stories

RS 15-15

UL 127, as Modified

1700°F

1 test

J-2 & J-3 limited

RS 15-9

UL 103HT

2100°F – 10 min.

3 tests

to 75 feet

RS 15-12

ULC 629M

2100°F – 30 min.

3 tests

All other occupancies and all buildings greater than 75 feet in height

RS 15-10

UL 959

2000°F to Equilibrium and 2300°F – 30 min.

1 test

3 tests

Table 15-6 of Subdivision (c) of Section 27-863 and Section 27-861

No Standard

Unlisted High Temp. Chimney with Required Thickness Listed in Table 15-6

No test

Note: Chimneys accepted pursuant to reference standard RS 15-10 or Table 15-6 may be used in lieu of chimneys accepted pursuant to reference standards RS 15-9, RS 15-12 and RS 15-15.Chimneys accepted pursuant to reference standards RS 15-9 or RS 15-12 may be used in lieu of chimneys accepted pursuant to reference standard RS 15-15.