Great Equipment | Quality Installations

Weil-McLain WGO, WTGO Oil-Fired Boilers...

Weil-McLain logo

Weil-McLain® oil-fired boilers are among the most reliable and energy-efficient residential oil boilers on the market!

Weil-McLain oil-fired boiler

Weil-McLain WGO, WTGO Boiler:

Weil-McLain's new GOLD Oil boiler line provides you with innovative features to help make installation and servicing easier than ever.

Designed for superior heating comfort and long-term efficiency, they feature precision engineering, durable components and proven performance. Three different oil-fired boiler series are available in a variety of models.

Key Features:

  • 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
  • Durable Cast Iron

Weil-McLain WGO, WTGO oil-fired boilers are available with or without a high capacity/high efficiency tankless water heater.

Weil-McLain Model UO Ultra Oil-Fired Boiler...

Weil-McLain logo

Weil McLain's new Ultra Oil Boilers are premium, smart, durable oil boilers with many state-of-the-art features!

Weil-McLain UO Ultra oil-fired boiler

Weil-McLain UO Ultra Boiler:

The Weil-McLain Model UO Ultra Oil Boiler features a full access, reversible swingaway door, which exposes virtually the entire combustion area and all flue-ways for simplified inspection, cleaning, and maintenance. This design also incorporates a mounting bracket that can be installed on either the left or right side of the front section for installation in small, confined spaces and corners.

Weil-McLain UO Ultra Boiler with swing-away door opened

Key Features:

  • Dedicated water-only oil boiler
  • Flexible direct or chimney venting - no power assisted fan needed
  • Three-pass durable, cast iron heat exchanger with captured elastomer seals
  • Sleek, innovatively designed jacket with rear piping and wiring openings and concealed controls for an appliance-like appearance
  • Circulator included, plus it's pre-wired for an optional fully integrated control system

Weil-McLain Model UO Ultra Oil-Fired Boilers include: Optional Advanced Features Module that provides indoor/outdoor reset, Domestic Hot Water (DHW) priority, stage firing and more!

All Boiler Installations Include Free Removal of Old Equipment!


As a licensed heating & air conditioning contractor, Hannabery HVAC provides high quality, professional oil boiler installations, oil boiler replacements, oil boiler repairs, oil boiler maintenance, and related services for the greater Lehigh Valley; including Allentown, Bethlehem, Easton, and all of Eastern Pennsylvania.

Have your new Weil-McLain Boiler professionally installed today!

Call us at 1-800-544-4328

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We look forward to having the opportunity to serve you. If you have any questions or comments, please do not hesitate to contact us.