The Weil McLain WGO Gold Series 3 Oil Fired Boilers are available in 8 models with heating capacities ranging from 86 to 295 MBH with efficiencies from 85 to 86.4% AFUE. The WGO Gold Series 3’s with their 85 to 86.4% efficiencies are Energy Star rated, which makes them eligible for rebates of $50 – […]