The Weil-McLain WGO is a high efficiency, cast iron oil-fired boiler. The WGO has a cast iron heat exchanger and an insulated steel jacket. The unit has a refractory blanket and target wall in the combustion area. The WGO features a quick-open top and a swing-away burner mounting door for easier access and visibility for inspection and servicing. WGO models range in AFUE rating from 85.0% to 87.0%, and certain models are Energy Star compliant when reducing the burner rate and installing the optional vent damper kit.
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