from $253.51
The Rheem Performance 8 kW Electric Tankless Water Heater is a compact, wall-mounted indoor unit designed for residential applications. Measuring just 8.25 inches wide, 3.625 inches deep, and 12 inches high, this 7-pound unit delivers a super high efficiency level with a Uniform Energy Factor of 0.97. It provides a continuous supply of hot water for 1-2 showers, with a maximum flow rate of 1.55 gallons per minute, and connects to a 240-volt electrical supply.
Sizing is critical; a tank that is too small leads to cold showers, while one too large wastes energy. Consider heat pump (hybrid) models if replacing electric, as they pay for themselves in energy savings. Available from $253.51.
Water heaters are the second largest energy user in the home. Heat pump models drastically reduce electricity usage but cost more upfront.
Common Failure Modes
Tank leaks due to internal corrosion are fatal and require complete replacement. Heating elements in electric tanks and thermocouples in gas tanks are common, easily fixable failures.
Sizing is critical; a tank that is too small leads to cold showers, while one too large wastes energy. Consider heat pump (hybrid) models if replacing electric, as they pay for themselves in energy savings.
Tank water heaters last 8 to 12 years on average. Tankless water heaters can last 15 to 20 years. The single most important factor is water quality — hard water dramatically shortens lifespan by accelerating sediment buildup and anode rod consumption.
The Rheem Performance Electric Tankless Water Heater is available at homedepot, starting at $253.51.
Water heaters are the second largest energy user in the home. Heat pump models drastically reduce electricity usage but cost more upfront.
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