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Description
**Series 3 Ultra Boiler
Key Features
- Gas fired water boiler with cast aluminum heat exchanger
- Venturi mixing body mixes air and gas providing higher efficiency
- Designed to operate in low temperature condensing applications
- Outdoor reset and domestic hot water priority standard
- Negative regulated gas valve precisely delivers gas to the boiler
- Electronic control module automatically adjusts blower speed and gas flow rate in response to environment
- Modulates with 5 to 1 turndown ratio
- Variable speed motor matches combustion output to heating needs
- High grade stainless steel burner features quiet operation, high efficiency, and cleaner combustion for low NOx applications.

  • Propane Conversion Orifice included for LP Gas Applications

    Hydro-Core Near Boiler Installation Options::
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    Specs
    Fuel Type:
    Propane
    Natural Gas
    Efficiency:
    95.6%
    System Type:
    Hydronic (Water)
    Features:
    EI/Spark Ignition
    Direct Vent
    Condensing
    Vent Size:
    3"
    Water Connection:
    1"
    Gas Connection:
    1/2"
    BTU Input:
    155000
    BTU Output:
    123000
    Warranty:
    Limited 15 Year Warranty on Heat Exchanger/ 1-year on parts
    Width (Inches):
    22-13/16"
    Vent Type:
    Direct Vent
    PVC
    AL29-4C
    Boiler Type:
    High Efficiency
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