• Technical Specifications


    Home Size

    Southern climate: 1 baths
    Northern climate: 0 bath

    Outdoor Unit Dimensions

    20.5” (H) x 13.8” (W) x 6.7” (D)


    33 lbs.

    Gas Consumption

    Min. 15,000 btuh
    Max. 120,000 btuh

    (NG & LP)

    Natural Gas/Propane

    Capacity Range

    0.5-5.0 GPM

    Uniform Energy Factor

    0.81 (UEF)

    Temperature Settings

    115-140° F (in 5° F Intervals)


    *Freeze Protection Kit is required for Northern climate

  • Full Description

    Our NR50 outdoor model is our newest and most affordable model for apartments, condominiums and townhouses with 1-2 showers. NR50 outdoor model is the way to upgrade your lifestyle to continuous hot water when you need it. This compact model is perfect in the southeastern region of the USA.

    Key Features:
    Outdoor model – NO VENTING REQUIRED – No expensive venting required
    12 year warranty – Longer coverage than competition, 12 years on heat exchanger, 5 years on parts, 1 year labor
    Optional Freezing protection kit – Freezing protection kit is sold separately
    0.5 GPM min. flow activation – Capable to handle higher incoming water temperature than current residential series
    1/2″ Gas fitting – NO NEED TO UPSIZE – No need to upgrade gas line if pipe length is less than 20′ (Natural Gas) from meter or 40′ (Propane) from gas tank

    Other Features:
    Safety lock out – Default max. 120° (refer to owner’s manual for higher temp)
    Standard burner – High performance single flame burner
    Fully modulating burner – Automatically adjusts burner level accordingly
    Turbo Flow – Up to 5.0 GPM @ 30° temperature rise (4.2 GPM @ 45° rise)
    Direct ignition – No standby pilot light
    Thermal fuse – Automatic overheat protection system
    Resin coated PC board – Increases durability and protection from elements
    Automatic air regulator – Monitors internal temperature/maximizes burner efficiency
    Resin coated PC board – Increases durability and protection from elements



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