Section 29-318b - Use of unvented fuel-burning room heaters in multiple-family dwellings. Notice(a) No unvented fuel-burning room heater shall be used in any residence other than a single-family residence unless such heater is fueled by natural gas or propane and is equipped with an oxygen depletion sensor.(b) Any person who sells unvented fuel-burning room heaters shall post a sign next to any display of such heaters, informing consumers that such heaters shall not be used in any residence other than a single-family residence unless such heaters are fueled by natural gas or propane and are equipped with an oxygen depletion sensor.Conn. Gen. Stat. § 29-318b