· Oil-fired water boiler with cast iron sections

· High capacity / high efficiency tankless heater

· Quick open top and swing-away burner door with full chamber access increases visibility for inspection and servicing

· Includes factory-wired circulator, service switch and Weil-McLain exclusive captured elastomer seals for added reliability

· Recessed target wall design protects unit from flue brushes

· Two flue outlets- rear and top - for complete venting flexibility