Reliance 6 80 EORS 80-Gallon Electric Water Heater
Reliance 6 80 EORS 80-Gallon Electric Water Heater Review
The Reliance 6 80 EORS is an 80-gallon electric water heater built by A.O. Smith and sold under the Reliance brand. The "6 80 EORS" identifies 6-year warranty, 80-gallon capacity, electric residential. Value-tier large-capacity electric.
Specs: 80 gallons stored, two 4500W heating elements (240V), UEF 0.93, 84-gallon FHR, 6-year tank and 1-year parts warranty. Glass-lined steel tank, magnesium anode rod.
The 80-gallon Reliance serves large households (5+ people) on a budget. Same engineering as AO Smith ProMax 80-gal with Reliance branding for hardware-store and plumbing-supply channels.
About $799 unit, $1,500 installed. For households with basement install supporting heat-pump, the upgrade to AO Smith Voltex 80-gal heat-pump operating cost ($18/month vs $65/month for standard 80-gal electric) usually makes that the better economic choice.
- No combustion, no venting required — installs anywhere with 240V electrical access
- Strong UEF 0.93 efficiency — approximately 20% lower annual operating cost vs 0.62 standard
- Large 80-gallon reserve — comfortably serves 5+ person households in peak-use periods
- 6-year warranty — below the 8–12 year average for premium models in this class
- Resistance electric has slower recovery than gas at comparable capacity — schedule heavy use to match tank recovery