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Technical Overview

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    Condensing Gas
    Combination Boilers

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    NCB series

    Max Input : 150,000 - 199,900 BTU/H
    Indoor Only
    Residential Only

    Super condensing efficiency

    Dual stainless steel heat exchangers

    SCH40, 2” PVC venting up to 60’ ½” Gas pipe up to 24’

    ½” Gas pipe up to 24’

    Automatic water filling system

    integrated controls

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    Premium Condensing Gas
    Tankless Water Heater

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    NPE-S series

    Max Input : 150,000 – 199,900 BTU/H
    Indoor/Outdoor Installation
    Residential/Commercial

    ½” gas pipe capable up to 24’

    Field convertible gas system

    Ultra condensing efficiency .99EF

    Dual stainless steel heat exchangers

    Low NOx emissions (≤20ppm)

    SCH 40, 2” venting up to 60’

    Cascading capable

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    Premium Condensing Gas
    Tankless Water Heater

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    NPE-A series

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    Max Input : 150,000 – 199,900 BTU/H
    Indoor/Outdoor Installation
    Residential/Commercial

    ½” gas pipe capable up to 24’

    Field convertible gas system

    Ultra condensing efficiency

    Dual stainless steel heat exchangers

    Low NOx emissions (≤20ppm)

    SCH 40, 2” venting up to 60’

    Cascading capable

  • Navien

    Condensing Gas
    Tankless Water Heater

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    NR series

    Max Input : 150,000 – 199,900 BTU/H
    Indoor/Outdoor Installation
    NR Series for Residential

    Ultra condensing efficiency

    Dual stainless steel heat exchangers

    Low NOx emissions (≤20ppm)

    SCH 40, 3” PVC venting up to 100’

    Cascading capable

    Built-in Recirculation System ("A" model)

    Remote controlled included

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    Condensing Gas
    Combination Boilers

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    CH-ASME series

    Max Input : 150,000 – 199,900BTU/H
    Indoor Only
    Hydronic Heating 

    Super condensing efficiency

    Dual stainless steel heat exchangers

    Low NOx emissions (≤20ppm)

    SCH 40, 3” PVC venting up to 100'

    Gas-Air Ratio Control

    Automatic water filling system

    Remote controller included