Marathon Point-of-Use
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
- 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
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 | ||
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










More Residential Rheem Products
Find additional documentation by viewing these related products.
- .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


