(a) Heating facilities. When provided, heating facilities in dwelling units, guest rooms, and congregate residences shall be installed and maintained in a safe condition and in accordance with all applicable laws. No unvented fuel-burning heaters shall be permitted. All heating devices or appliances shall be of an approved type.
(b) Electrical equipment. All electrical equipment, wiring and appliances shall be installed and maintained in a safe condition and in accordance with all applicable laws. All electrical equipment shall be of an approved type. Where there is electrical power available within 300 feet of any building, such building shall be connected to such electrical power. Every habitable room shall contain at least two electrical convenience outlets or one convenience outlet and one electric light fixture. Every water closet compartment, bathroom, laundry room, furnace room, and public hallway shall contain at least one electric light fixture.
(c) Ventilation. Ventilation for rooms and areas and for fuel-burning appliances shall be provided as required in accordance with all applicable laws and in this code. Ventilating equipment shall be of approved types, installed and maintained in a safe condition and in accordance with all applicable laws. Where mechanical ventilation is provided in lieu of the natural ventilation required by § 16A-4.4, such mechanical ventilation system shall be maintained in operation during the occupancy of any building or portion thereof.
(d) Domestic clothes dryers.
(1) Where clothes dryer ducts are installed, moisture exhaust ducts shall have a minimum 4-inch diameter. The duct shall be of metal and shall have smooth interior surfaces.
Exception: approved flexible duct connectors not more than 6 feet in length may be used in connection with domestic dryer exhausts. Flexible duct connectors shall not be concealed within construction.
(2) Moisture exhaust ducts and plenums shall terminate on the outside of the building and shall be equipped with a back-draft damper. In no case shall the moisture exhaust duct or plenum terminate beneath the building or in the attic. Screens shall not be installed at the duct termination. Ducts for exhausting clothes dryers shall not be connected or installed with sheet metal screws or other fasteners that will obstruct the flow. Moisture exhaust ducts shall not be connected to a gas vent connector, gas vent, or chimney and shall not extend into or through ducts or plenums serving other appliances or fixtures.
(3) Unless otherwise permitted or required by the dryer manufacturer’s installation instructions and approved by the building official, moisture exhaust ducts shall not exceed a total combined horizontal and vertical length of 14 feet, including two 90-degree elbows. Two feet shall be deducted for each 90-degree elbow in excess of two elbows. Plenums receiving discharge from two or more moisture exhaust ducts shall not be installed, unless designed by a registered professional engineer or architect and approved by the building official.
(4) When a closet is designed for the installation of a clothes dryer, a minimum opening of 100 square inches for makeup air shall be provided in the door or by other approved means.
(Sec. 25-6.1, R.O. 1978 (1983 Ed.)) (1990 Code, Ch. 27, Art. 6, § 27-6.1) (Am. Ord. 97-50)