804.2 Appliances with integral vents.

Appliances incorporating integral venting means shall be installed in accordance with their listings and the manufacturer's instructions. In addition, integral vent terminals shall comply with the following requirements:

   1.   Where located adjacent to walkways, the vent terminal shall be not less than 7 feet (2133.6 mm) above the level of the walkway.

   2.   The vent terminal shall be at least 3 feet (914.4 mm) above any forced air inlet, other than the forced air inlet for the subject integral vent appliance, located within 10 feet (3048 mm).

   3.   The vent terminal shall be at least 4 feet (1219.2 mm) below, 4 feet (1219.2 mm) horizontally from or 1 foot (304.8 mm) above any door, window or gravity air inlet into the building.

   4.   The vent terminal shall not be located closer than 3 feet (914.4 mm) to an interior corner formed by two walls perpendicular to each other.

   5.   The vent terminal shall not be mounted directly above or within 3 feet (914.4 mm) horizontally from any gas or electric metering, regulating, venting relief equipment or other building opening.

   6.   The bottom of the vent terminal shall be located at least 36 inches (914.4 mm) above finished grade.

   7.   The maximum heat input of an appliance served by single horizontal vent terminal shall be 350,000 Btu/h (102.6 kW), unless otherwise approved by the commissioner.

   8.   The maximum heat input of all appliances served by horizontal vent terminals located within a 10 foot (3048 mm) radius shall be 350,000 Btu/h (102.6 kW), unless otherwise approved by the commissioner.

   9.   The vent terminal shall be located a minimum of 4 feet (1219.2 mm) from the lot line or from adjacent buildings. The termination shall be installed in accordance with the vent manufacturer's instructions.

Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2014/051.

804.2.1 Reserved.

804.3 Mechanical draft systems.

Mechanical draft systems of either forced or induced draft design shall be listed and labeled in accordance with UL 378 and shall comply with Sections 804.3.1 through 804.3.8.

804.3.1 Forced draft systems.

Forced draft systems and all portions of induced draft systems under positive pressure during operation shall be designed and installed so as to be gas tight to prevent leakage of combustion products into a building.

804.3.2 Automatic shutoff.

Power exhausters serving automatically fired appliances shall be electrically connected to each appliance to prevent operation of the appliance when the power exhauster is not in operation.