Bridgeport, Conn., Mun. Code §§ 15.12, 15.28 § 15.12.110

Every dwelling or dwelling unit shall be supplied with heating facilities which are properly installed, are maintained in safe and good working conditions, and are capable of safely and adequately heating all habitable rooms, bathrooms and water closet compartments located therein to a temperature of not less than sixty-five (65) degrees Fahrenheit. Heat, where supplied by the owner, shall be maintained at a temperature of not less than sixty-five (65) degrees Fahrenheit at all times. Either central or space heating facilities may be used but must meet the following requirements: A.
Central Heating--Central Hot Water Facilities. Every heating unit and/or central hot water heating unit shall:
1. Have every heat duct, steam pipe and/or hot water pipe free of leaks and functioning properly to provide an adequate amount of heat and/or hot water to the intended place of delivery;
2. Be provided with seals between sections of hot air furnace to prevent the escape of noxious gases into heat ducts;
3. If employing electricity, be connected to an electric circuit of adequate capacity in an approved manner; and
4. Be provided with automatic or safety devices and be installed and operated in the manner required by the statutes, ordinances and regulations of the state and the city.
B. Space Heating--Unit Hot Water Facilities. Every space heating unit and/or unit hot water facility shall:
1. Not use gasoline as a fuel;
2. Not be of the portable type if using solid, liquid or gaseous fuel;
3. If employing a flame, be connected to a flue or vent in the manner required by the statutes, ordinances and regulations of the state and the city;
4. If employing solid or liquid fuels, have a fire-resistant panel beneath it;
5. Be located at least two feet away from any wall or be equipped with insulation sufficient to prevent overheating;
6. If employing gaseous fuel, be equipped with other than rubber tube or armored rubber tube connector;
7. If employing electricity, be connected to an electric circuit of adequate capacity in an approved manner;
8. Be installed and operated in the manner required by the statutes, ordinances and regulations of the state and the city.