801.11 Multiple solid fuel-burning appliances prohibited.

A solid fuel-burning appliance or fireplace shall not connect to a chimney passageway venting another appliance.

801.12 Chimney entrance.

Connectors 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.

801.13 Cleanouts.

Factory-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.

   Exception: Cleanouts shall not be required for chimney flues serving masonry fireplaces, if such flues are provided with access through the fireplace opening.

801.14 Connections to exhauster.

Appliance 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.

801.15 Fuel-fired appliances.

Masonry 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.