Proline® X Split Heat Pump 62-Gallon Tall Water Heater Tank

Model MXST-66 100
Capacity (Gallons)
Height Classification

  • Features a Uniform Energy Factor (UEF) of up to 3.80, and is ENERGY STAR® certified
  • 82-gallon first hour rating
  • A system is a combination of a heat pump and a tank. A storage tank must be paired with corresponding heat pump unit
  • Proline® X Split Heat Pump 62-Gallon Tall Water Heater Tank
    Model MXST-66 100
    Product Details
    • Features a Uniform Energy Factor (UEF) of up to 3.80, and is ENERGY STAR® certified
    • 82-gallon first hour rating
    • A system is a combination of a heat pump and a tank. A storage tank must be paired with corresponding heat pump unit
    • Operates efficiently in ambient temperatures from -25°F to 109°F — maximize performance year-round, even in colder climates
    • Simplify installation — the split system is plumber-friendly and comes pre-charged, requiring no special refrigerant certification
    • Qualify for state and local utility rebates — take advantage of ENERGY STAR® certification for additional savings
    • Monitor and control your water heater remotely — use the free iCOMMTM App via Wi-Fi or Bluetooth for smart connectivity
    • Install the storage tank in a wide range of space-constrained locations — enjoy unmatched flexibility for closets, garages, utility rooms, or basements — while heat pump installs outdoors
    • Protect against freezing with built-in freeze defense — add an optional Anti-Freeze Valve Kit for extra security during power outages
    • Benefit from a 10-year limited warranty — trust in long-term reliability and support

    • Experience unmatched adaptability and savings with American Proline® X Split Heat Pump Water Heater Tanks (must be paired with heat pump system). Designed for modern homes, the X split system allows the storage tank to be installed in a wide range of space-constrained locations, making it ideal for closets, garages, utility rooms, or basements. The heat pump is installed outdoors, making the entire system whisper quiet. With various tank sizes available, you can enjoy hot water wherever you need it, even in spaces previously unsuitable for standard hybrid heat pumps.

      The Proline® X system utilizes advanced CO2 refrigerant technology, enabling operation in colder temperatures and providing exceptional energy efficiency and sustainability. Featuring a Uniform Energy Factor (UEF) of up to 3.80, this ENERGY STAR® certified water heater can reduce water heating costs by up to 76% compared to traditional electric models.* The CO2 refrigerant offers a 99.9% lower global warming potential than standard refrigerants, making it a smart choice for eco-conscious consumers.

      Take advantage of state and local utility rebates while reducing your carbon footprint and enjoying quiet operation—just 40dBA outside and 0dBA inside your home. With a 10-year limited warranty and compatibility with automatic water shutoff valves, you can trust American Proline® X to deliver reliable, efficient, and worry-free hot water for years to come.

      *Comparing 80-gallon X heat pump against pre-2015 similarly-sized standard electric using DOE
      EF to UEF conversion rates and $0.14 per kWh electricity cost. Savings may vary.

    Specifications
    Tech Specs
    Nominal Gallon Capacity
    62 Gallons
    Rated Storage Volume
    60 Gallons
    UEF
    3.7
    Power Source
    ELECTRIC
    Limited Parts Warranty
    10 Years
    Water Connection Location
    TOP
    Water Connection Size
    0.75"
    First Hour Rating
    82 Gallons
    ASME Certified
    No
    Amperes
    0.2
    Destination Country
    US
    ENERGY STAR® Certified
    Yes
    Height to T&P
    53.20
    Installation Type
    INDOOR
    Application
    RESIDENTIAL
    Shipping Height 
    64.25
    Shipping Length 
    27
    Shipping Width 
    25
    Side Loop
    Yes
    Voltage
    120
    Dimension & Venting
    Type
    Water Heater
    Height
    68.2"
    Diameter
    22"
    Shipping Weight
    134 lbs
    Marketing Videos
    Proline® X Outdoor Split Heat Pump Water Heater - How It Works
    Residential Split System Heat Pump - Application and Installation
    Residential Split System Heat Pump - Features and Benefits