1) Certain containers 2) Certain tanks 3) Furnaces 4) Heaters 5) Heating equipment 6) Heating plants 7) Home heating sources 8) Kettles 9) Steam generators 10) Submerged coral reefs 11) Water heaters 
Steam generating units used aboard ship to provide steam for propulsion and for heating and other auxiliary purposes.
Steam generating units used aboard ship to provide steam for propulsion (and) for heating and other auxiliary purposes.