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Best Energy Efficient Electric Water Heater

From leading brands and best sellers available on the web.
#1

Winner

Bosch Electric Mini-Tank Water Heat

Bosch Thermotechnology

24%OFF

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted

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#2
Stiebel Eltron Tankless Water Heate

Stiebel Eltron

Stiebel Eltron Tankless Water Heater - Tempra 12 Trend – Electric, On Demand Hot Water, Eco, White

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#3
EcoSmart ECO 11 Electric Tankless W

EcoSmart

40%OFF

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

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#4
Rheem 18kW 240V Tankless Electric W

Rheem

5%OFF

Rheem 18kW 240V Tankless Electric Water Heater, Gray

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#5
Rheem RRTGH84DVLN3701171 Rheem RTGH

Rheem

Rheem RRTGH84DVLN3701171 Rheem RTGH Series 8.4 GPM 157,000 BTU 120 Volt Residential Indoor Natural Gas Tankless Water Heater Stainless Steel

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#6
ECOTINYMACH 110V Tankless Water Hea

ECOTINYMACH

ECOTINYMACH 110V Tankless Water Heater Electric, 3000W Compact Water Heater Under Sink, Conveniently Convertible Between Fahrenheit and Celsius

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#7
Electric Tankless Hot Water Heater,

ECOTOUCH

Electric Tankless Hot Water Heater, ECOTOUCH 18kW on Demand Instant Water Heater 240V, ETL Certificated Self-Modulation Point of Use Hot Water Heater Whole House ECO180B Black

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#8
EcoSmart ECO 27 Tankless Water Heat

EcoSmart

18%OFF

EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x 3.5

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#9
Tankless Water Heater Electric 18kW

thermomate

5%OFF

Tankless Water Heater Electric 18kW 208~240 Volt, ThermoMate On Demand Instant Endless Hot Water Heater, Self Modulating Saving Energy for Residential Whole House Shower, 76A GRAY

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#10
Feelrogast Electric Mini Tank Water

Feelrogast

5%OFF

Feelrogast Electric Mini Tank Water Heater-4 Gallon Under Sink Instant Hot Water for RV, Camper, Kitchen, Food Truck, 120V 1500W, Wall or Floor Mounted

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Buying Guide for the Best Energy Efficient Electric Water Heater

Choosing an energy-efficient electric water heater can significantly reduce your energy bills and environmental footprint. When selecting the right model, it's important to consider several key specifications that will determine the heater's efficiency, capacity, and suitability for your household needs. Understanding these specs will help you make an informed decision and ensure you get the best fit for your home.
Energy Factor (EF)The Energy Factor (EF) measures the water heater's overall energy efficiency. It considers the amount of hot water produced per unit of fuel consumed over a typical day. A higher EF indicates a more efficient water heater. EF values typically range from 0.5 to 2.0. For most households, an EF of 0.9 or higher is recommended for optimal energy savings. If you have a larger household or higher hot water demand, look for models with an EF closer to 2.0.
Tank CapacityTank capacity refers to the amount of water the heater can store and heat at one time. This is important because it determines how much hot water is available for use. Capacities range from 20 to 80 gallons. For a small household (1-2 people), a 20-40 gallon tank may suffice. For a medium household (3-4 people), a 40-60 gallon tank is usually adequate. Larger households (5+ people) should consider tanks with 60-80 gallons to ensure a steady supply of hot water.
Recovery RateThe recovery rate indicates how quickly the water heater can reheat water after the initial supply has been depleted. This is crucial for households with high hot water usage. Recovery rates are measured in gallons per hour (GPH). A higher recovery rate means the heater can provide more hot water in a shorter period. For moderate usage, a recovery rate of 20-30 GPH is typically sufficient. For heavy usage, look for models with a recovery rate of 40 GPH or higher.
First Hour Rating (FHR)The First Hour Rating (FHR) measures the amount of hot water the heater can supply in the first hour of use. This is important for understanding the heater's performance during peak usage times. FHR is measured in gallons. For small households, an FHR of 40-50 gallons is usually adequate. Medium households should look for an FHR of 50-70 gallons, while larger households may need an FHR of 70 gallons or more to meet their hot water demands.
Standby Heat LossStandby heat loss refers to the amount of heat lost from the water heater when the water is not being used. Lower standby heat loss means better insulation and higher energy efficiency. This is particularly important for tank water heaters. Look for models with high-quality insulation and low standby heat loss to maximize energy savings. Insulation values are often indicated by the R-value, with higher R-values representing better insulation.
WarrantyThe warranty period indicates the manufacturer's confidence in the product's durability and reliability. Longer warranties can provide peace of mind and protection against potential issues. Warranties for electric water heaters typically range from 6 to 12 years. Consider your long-term needs and choose a model with a warranty that offers adequate coverage for your usage and expectations.