G115WS Logano series oil boiler is intended for small to medium sized residential applications and is available in 3, 4 or 5 sections. Features 3" insulation, full swing front door for easy cleaning and 87% AFUE. Energy Star qualified. Compatible with select Riello, Beckett and Carlin chimney vent or direct vent burners. Consider using G115WS in combination with LT series horizontal indirect tanks. Note: burners sold separately.