Marathon Commercial Water Heaters

Marathon doesn't currently ship any commercial water heaters in the lineup we track. If you're shopping for commercial water heaters, see the full Commercial category for cross-brand options.

About Marathon

Marathon (Rheem) — subsidiary of Rheem. Specialty water-heater manufacturer serving the US market.

For the complete Marathon lineup across all sub-types and capacities, see the Marathon Water Heaters hub.

Other Commercial water heaters brands

If you're cross-shopping commercial water heaters beyond Marathon, the following brands also ship in this category:

• AO Smith Commercial
• Bradford White Commercial
• State Commercial
• Lochinvar Commercial
• Triton Commercial
• Niagara Commercial

About Commercial Water Heaters water heaters

Commercial water heaters serve applications beyond single-family residential demand: restaurants, hair salons, group homes, in-home daycares, light-industrial, multi-family residential (apartment buildings, condos), and estate-class residential with peak demand exceeding 130 GPH first-hour delivery. The major US brands all manufacture light-commercial residential variants under their Cyclone (AO Smith), Powerflex (Rheem), and Genesis (Bradford White) commercial lines.

• Capacity: 75–199 gallons standard, with cascade options for higher demand
• BTU input: 76,000–500,000 BTU/h on gas; 6–12 kW per element on electric
• Warranty: commercial warranties run 3 years standard (vs 6–12 years residential) — comm...

  For the complete commercial buyer's guide (all brands, full comparison framework), see the Commercial Water Heaters category hub.

  Other Marathon filters

  Explore Marathon from other angles:

  • Marathon Tankless
  • Marathon Tank / Storage
  • Marathon Heat Pump / Hybrid
  • Marathon Solar
  • Marathon 6 Gallon
  • Marathon 10 Gallon
  • Marathon 20 Gallon
  • Marathon 30 Gallon
  • Marathon Gas
  • Marathon Electric
  • All Marathon Water Heaters