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Residential Products
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Marathon Point-of-Use

MODEL MR20230

United States
Residential Use: Lifetime limited tank warranty, 6-year limited parts warranty*
Light Duty Commercial Use: 5-year limited tank warranty, 1-year limited parts warranty

Canada
Residential Use: Lifetime limited tank warranty, 6-year limited parts warranty
Light Duty Commercial Use: 5-year limited tank warranty, 1-year limited parts warranty


* Warranty is provided to original customer in a residential application after online product registration is complete. Registration must be completed within 90 days of installation. See Warranty Certificate for complete information
†See Warranty Certificate for complete information 
  • Featuring the same unique design as the Marathon, but in smaller capacities
  • Ideal for condos, cabins and light-duty commercial applications
  • 15 and 20 gallon capacities

SKU MR20230
Model Marathon Point-of-Use
Height 30.5"
High Efficiency Yes

Marathon® Point-of-Use non-metallic electric water heaters are durable, lightweight,easy to install and offer a longer warranty

Non-metallic Tank Features

  • Seamless, blow-molded, polybutene tank – impervious to rust and corrosion
  • Multiple layers of filament wound fiberglass give the tank unmatched strength
  • Polyurethane insulation helps reduce energy consumption and standby heat loss
  • Recessed drain valve is out of the way of brooms and scrubbers
  • High temperature polysulfone dip tube
  • Tough molded polyethylene outer shell resists dents, scratches, and salt air
  • All plastic tank eliminates the need for an anode rod

Easy Installation & Service

  • Marathon point-of-use’s lightweight tank is easy to maneuver and position
  • Bowl shaped tank bottom allows complete sediment draining
  • Water tight grommets keep out overhead moisture and condensation
  • 3/4-Inch inlet and outlet connections
  • Built for applications where larger water heaters won't fit, such as apartments,recreational property, and restrooms in offices and commercial buildings

Element Wattage and Voltage

  • 15 and 20-Gallon with a 2,000 watt element and 120-voltage; 20-gallonwith a 3,000 watt element and240-voltage

Plus…

  • Thermally fused element to protect against dry-firing; low watt, density for long life
  • Full-flow, brass drain valve
  • Temperature and pressure relief valve
  • Low Lead compliant
  • Standard replacement parts

DESCRIPTION
 MARATHON POINT-OF-USE MODELS
  GAL CAP.
MODEL NUMBER
ELEMENTS
  15 MR15120  --
  20 MR20120  --
  20 MR20230  --
       
15
CMR15120 120V, 2.0KW
20 CMR20120 120V, 2.0KW
20 CMR20230 240V, 3.0KW

Available in Canada only

United States
Residential Use: Lifetime limited tank warranty, 6-year limited parts warranty*
Light Duty Commercial Use: 5-year limited tank warranty, 1-year limited parts warranty

Canada
Residential Use: Lifetime limited tank warranty, 6-year limited parts warranty
Light Duty Commercial Use: 5-year limited tank warranty, 1-year limited parts warranty


* Warranty is provided to original customer in a residential application after online product registration is complete. Registration must be completed within 90 days of installation. See Warranty Certificate for complete information
†See Warranty Certificate for complete information 

Energy Miser (Globe)AHRICSAElectricUL

More Residential Rheem Products

Find additional documentation by viewing these related products.

Electric
Performance Series: Point-of-Use
Capacity 3-30
  • .90 (UEF) Uniform Energy Factor for 30-gallon U.S. model
  • Space-saving design for installation in limited spaces
  • 2.5, 6, 10, 20 and 30 gallon capacities, 2 gallon model available in Canada
  • Low lead compliant