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    • Weil-McLain Steam Boiler featuring six sections, LWCO, and a compact design for efficient heating.

    Weil-McLain Steam Boiler Gold S4 Packaged LWCO Oil less Burner

    Installed Price:Regular Price $10,061.20
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    Installation Pricing

    Every product you purchase from us includes the full cost of professional installation. Once your order is placed, our team will reach out to schedule the installation at a time that works best for you.

    We handle everything from removing the old equipment to installing and testing your new system, ensuring it’s set up safely and performing at its best.

    Your checkout covers the equipment and the labor—no surprise charges, no hidden fees. Installation is simply booked separately so we can coordinate the right technician and confirm any details about your home.

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      Pairs well with

      A heavy‑duty six‑section cast‑iron steam boiler engineered for large residential steam systems requiring high output, dry‑steam performance, and long service life. Built on the proven Weil‑McLain Gold S4 platform, the 386701003 arrives as a packaged steam boiler with LWCO installed, but is supplied less burner, allowing installers to select the preferred burner brand or match an existing field‑installed burner. Designed for natural‑draft chimney venting, it is a strong replacement option for older atmospheric oil steam boilers in larger homes or multi‑radiator systems.

      Key Features
      Six‑section cast‑iron heat exchanger delivering high steam output, thermal stability, and long‑term durability.

      245,000 BTU heating capacity suited for large homes or high‑demand steam systems.

      Supplied less burner, allowing flexibility to install Beckett, Carlin, or Riello burners as required.

      Integrated LWCO for safe operation and protection against low‑water conditions.

      85% AFUE efficiency providing dependable performance with straightforward annual maintenance.

      Natural‑draft chimney venting ideal for retrofit installations using existing flue systems.

      Service‑friendly layout with accessible controls, steam trim, and piping connections.

      Ideal Applications
      Large homes or multi‑radiator steam systems needing a high‑capacity, natural‑draft oil steam boiler with built‑in LWCO and the flexibility to choose or reuse a burner.

      We service and install all types of HVAC heating and cooling equipment throughout Long Island, including (but not limited to):

      Nassau County: Oyster Bay, Hempstead, North Hempstead, Glen Cove, Long Beach, Freeport, Valley Stream, Garden City, Great Neck, Mineola, Hicksville, Levittown, Massapequa, Bethpage, Plainview, Syosset, Jericho, Westbury, Rockville Centre, Farmingdale

      Suffolk County: Huntington, Babylon, Islip, Smithtown, Brookhaven, Riverhead, Shelter Island, Southold, Southampton, East Hampton, Commack, Deer Park, Lindenhurst, Bay Shore, Brentwood, Central Islip, Hauppauge, Centereach, Selden, Medford, Patchogue, Shirley

      Contact us today at (631) 779-3196

      Product Specifications
      Specification Name Specification Value
      Boiler Type
      Product Type Packaged LWCO
      Fuel Type Oil
      Capacity
      BTU Rating 245000
      Amperage 1.0
      MBH 245
      Efficiency 85%
      Voltage 120 VAC
      Turndown Ratio 1:1
      AFUE 85.0
      Installation Type
      Vent Type Natural Draft
      Burner Type
      Sections 6
      Height 35.63 in
      Width 28.5 in
      Depth 20 in
      Documents
      Specification Sheet Download
      Service & Support

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