Marathon Heavy Duty Lifetime 40-Gallon Electric Water Heater

The Marathon Heavy Duty Lifetime 40-Gallon Electric is the heavy-duty variant of the standard Marathon 40-gallon, with enhanced heating elements for higher cycle counts. Designed for commercial-residential crossover applications.

Specs: 40 gallons stored, two 6000W heating elements (vs standard 4500W on regular Marathon 40-gal), UEF 0.94, 65-gallon first-hour rating, lifetime tank warranty + 6-year parts warranty. Polybuthylene tank.

Heavy Duty differentiators versus standard Marathon 40-gallon:

• 6000W elements (vs 4500W) deliver faster recovery: 28 gph vs 21 gph at 90°F rise
• Higher first-hour rating: 65 vs 52 gallons
• Heavier-duty wiring (40A 240V vs 30A 240V)

About $1,900 unit, $2,400 installed. Right buyer: smaller household (1-2 people) where the lifetime warranty matters and the heavy-duty elements compensate for electric resistance's typically-slow recovery.