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    • Ideal MONARCH100 Monarch 100-Gallon Indirect Water Heater

    Ideal MONARCH100 Monarch 100-Gallon Indirect Water Heater

    Installed Price:Regular Price $4,092.48
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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

      The Ideal MONARCH100 is a high‑capacity, premium‑grade 100‑gallon Indirect Water Heater engineered for exceptional durability, rapid recovery, and long‑life performance. Built around a fully welded 316L stainless‑steel tank and a large high‑output stainless‑steel heat‑exchange coil, this Indirect Water Heater delivers abundant hot water for large homes, multi‑bath residences, and high‑demand hydronic systems. Its indirect‑fired design uses the home’s boiler as the heat source, maximizing efficiency while minimizing standby loss.

      With oversized coil surface area, robust insulation, and installer‑friendly top connections, the MONARCH100 is Ideal’s flagship indirect — designed for reliability, longevity, and serious hot‑water production.

      ⭐ Key Features
      100‑gallon 316L stainless‑steel tank for superior corrosion resistance and long service life

      Oversized stainless‑steel heat‑exchange coil for extremely fast recovery and high output

      Indirect‑fired design for high efficiency and reduced operating cost

      No anode rod required thanks to all‑stainless construction

      Low standby heat loss with thick, high‑density insulation

      Top‑mounted connections for clean, simplified installation

      High first‑hour rating ideal for large homes and multi‑fixture demand

      Maintenance‑friendly stainless‑steel tank and coil

      🏠 Ideal Application
      Large

      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
      Product Type
      BTU Rating 300000
      Burner Type
      Tank Capacity 100.0
      Diameter 28.0
      Height 66 in
      Tank Lining 316L Stainless Steel
      Fitting Size
      Firing Rate
      Input Supply Rating
      Amperage 1.0
      Water Heater Type Indirect
      Documents
      Specification Sheet Download
      Service & Support

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