Rheem RHE PRO80-2 Professional Electric Hot Water Heater
Rheem Professional Series of electric hot water heaters are designed by professionals, so you can be sure that they have considered everything that needs to be considered about longevity. It carries an Energy Factor of only .91-.95, making it not quite as efficient as other models, but some of the other features will still set them apart. While they don't have the Energy Star rating set forth by the government, they do carry the Energy Miser certification, that cuts energy usage at the control panel by as much as 95 percent. This will drop on demand charges and usage down from 10 to 25 percent. This series comes with a 42 to 80-gallon capacity, depending on what your need is. The high efficiency resistor heating element adds one of the longest protection periods available in hot water heaters overall. The sensitive thermostat will turn the heater off if for any reason the temperature climbs above its set temperature. Most impressive about this unit is its EverKleen self-cleaning feature that helps prevent sediment build-up with a fast moving spiraling stream of water inside. Limiting sediment build up should be a big factor in extending the life of any hot water heater.