Marathon offers 13 tank / storage water heaters models in the lineup we track. This page is the Marathon-specific cut of the broader Tank (Storage) Water Heaters water heaters category — same product class, narrowed to the Marathon catalog only.
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.
If you're cross-shopping tank / storage water heaters beyond Marathon, the following brands also ship in this category:
The conventional storage tank water heater remains the volume residential water heater across the US — roughly 75% of all installs. A tank water heater stores 30–80 gallons of preheated water in an insulated steel tank, fired by gas atmospheric burner, gas power-vent, gas direct-vent, or electric resistance elements. Compared to tankless, storage tanks have lower upfront cost, simpler install (no gas-line resizing, no PVC venting), and tolerate higher peak demand events without GPM limits. The trade-off is standby losses (continuous reheating to maintain temperature) and a finite reservoir.
For the complete tank / storage buyer's guide (all brands, full comparison framework), see the Tank (Storage) Water Heaters category hub.
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