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10 Best Electric Water Heaters 2025 in the United States
#1
Winner
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
The Bosch Electric Mini-Tank Water Heater Tronic 3000 T is a compact point-of-use water heater designed to provide hot water quickly right where you need it, such as under a sink. With a 7-gallon capacity, it's best suited for small tasks like hand washing or light kitchen use rather than whole-house needs. Its 98% thermal efficiency means it uses energy effectively, which can help save on electricity costs. The unit operates at 120 volts with 1440 watts of power, heating water up to 145°F, which is sufficient for most household uses.
Rating
10.0
Chosen by1,412
Size and Installation Space
Recovery Rate
Capacity
Most important from
11136 reviews
#2
Rheem 18kW 240V Tankless Electric Water Heater, Gray
The Rheem 18kW Tankless Electric Water Heater is a solid choice for those looking for an efficient and space-saving solution to hot water needs. Its compact size (14.5"W x 18.25"H) makes it ideal for homes with limited space, and the wall-mount design allows for easy installation. With a maximum flow rate of 4.4 gallons per minute, it can adequately serve smaller households or apartments, meeting the demands for showers and other hot water needs simultaneously.
Rating
9.7
Size and Installation Space
Most important from
2044 reviews
#3
Stiebel Eltron Tankless Water Heater - Tempra 20 Trend – Electric, On Demand Hot Water, Eco, White
The Stiebel Eltron Tempra 20 Trend is a compact tankless water heater designed to provide on-demand hot water without the need for a storage tank. Its continuous flow feature means you won’t run out of hot water during showers, making it suitable for small to medium households. With a 19.2 kW power rating and a maximum flow rate of about 2 gallons per minute, it can handle multiple bathroom uses but may struggle with very large households needing simultaneous showers.
Rating
9.1
Capacity
Recovery Rate
Energy Efficiency
Most important from
2169 reviews
Top 10 Best Electric Water Heaters 2025 in the United States
#1
Winner
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 7-Gallon (ES8) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
Capacity: 7 Gallon
Energy Efficiency: 98%
Size and Installation Space: 17.5"W x 17.5"H; mount any way
Warranty: 1 year parts warranty
Safety Features: Max pressure 150 PSI; standard safety
Chosen by 1412 this week
Rheem 18kW 240V Tankless Electric Water Heater, Gray
Rheem 18kW 240V Tankless Electric Water Heater, Gray
Capacity: 4.4 gallons/min
Energy Efficiency: 99.8%
Size and Installation Space: 14.5"W x 18.25"H
Warranty: by Rheem
Safety Features: included
Stiebel Eltron Tankless Water Heater - Tempra 20 Trend – Electric, On Demand Hot Water, Eco, White
Stiebel Eltron Tankless Water Heater - Tempra 20 Trend – Electric, On Demand Hot Water, Eco, White
Capacity: 19.2 kW
Energy Efficiency: auto-modulation tech
Size and Installation Space: 16.63"W x 14.5"H, wall mount
First Hour Rating (FHR): continuous flow design
Warranty: 7-year leak, 3-year parts
Safety Features: ANSI, CSA, NSF, UL certified
Stiebel Eltron Tankless Water Heater – Tempra 24 Plus – Electric, On Demand Hot Water, Eco, White, 20.2
Stiebel Eltron Tankless Water Heater – Tempra 24 Plus – Electric, On Demand Hot Water, Eco, White, 20.2
Energy Efficiency: Energy Efficient
Size and Installation Space: 16.63"W x 14.5"H
Warranty: 7 years leaks, 3 years parts
BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
Capacity: 4 Gallon
Recovery Rate: fast recovery
Energy Efficiency: 98% thermal efficiency
Size and Installation Space: 13.75 x 13.75 x 13.5 in
Warranty: 6 year unit, 2 year parts
Safety Features: 150 PSI, 140°F max temperature
Related Products
Stiebel Eltron Tankless Water Heater – Tempra 24 Trend – Electric, On Demand Hot Water, Eco, White
Stiebel Eltron Tankless Water Heater – Tempra 24 Trend – Electric, On Demand Hot Water, Eco, White
Capacity: 24 kW
Energy Efficiency: High
Size and Installation Space: 16.63"W x 14.5"H, wall-mount
Warranty: 7-year leak, 3-year parts
BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
BOSCH Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
Capacity: 2.5 gallons
Recovery Rate: fast recovery
Energy Efficiency: 98%
Size and Installation Space: 13.75"W x 13.75"H x 10.75"D
Warranty: 6 year on unit, 2 year parts
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Energy Efficiency: 99.8%
Size and Installation Space: 17.63"W x 18.25"H
#10
GE Appliances 10 Gallon Versatile Plug and Play Electric Water Heater with Adjustable Thermostat, Easily Installs Where You Want It, 120 Volt
GE Appliances 10 Gallon Versatile Plug and Play Electric Water Heater with Adjustable Thermostat, Easily Installs Where You Want It, 120 Volt
Capacity: 10 Gallon
Size and Installation Space: 14.75"W x 24.5"H
Warranty: 8 years tank & parts
Safety Features: Adjustable thermostat, stainless steel element
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Buying Guide for the Best Electric Water Heaters
Choosing the right electric water heater for your home is essential to ensure you have a reliable and efficient source of hot water. There are several key specifications to consider when selecting an electric water heater, and understanding these can help you make an informed decision that best fits your needs. Here are the main factors to consider and how to navigate them.CapacityCapacity refers to the amount of hot water the heater can store, usually measured in gallons or liters. This is important because it determines how much hot water is available at any given time. For small households or single-person use, a smaller capacity (20-30 gallons) may be sufficient. For larger families or homes with higher hot water demands, a larger capacity (40-80 gallons) is recommended. Consider your household size and hot water usage patterns to choose the right capacity.
Recovery RateThe recovery rate is the amount of hot water the heater can produce in a given time, typically measured in gallons per hour. This is crucial for ensuring that you have a continuous supply of hot water, especially during peak usage times. A higher recovery rate means the heater can replenish hot water faster. If your household uses a lot of hot water in a short period, look for a water heater with a high recovery rate. For moderate usage, a standard recovery rate should suffice.
Energy EfficiencyEnergy efficiency indicates how effectively the water heater converts electricity into hot water, often represented by the Energy Factor (EF) or Uniform Energy Factor (UEF). Higher efficiency means lower energy consumption and reduced utility bills. Look for models with a high EF or UEF rating if you want to save on energy costs and reduce your environmental footprint. Consider your long-term energy savings when evaluating this spec.
Size and Installation SpaceThe physical size of the water heater and the space available for installation are important considerations. Measure the area where you plan to install the heater to ensure it fits comfortably. Some models are designed to be more compact and can fit in smaller spaces, while others may require more room. Choose a size that fits your installation space without compromising on capacity and performance.
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 particularly important for households with high morning or evening hot water demands. A higher FHR means the heater can deliver more hot water quickly. If your household has peak usage times, look for a water heater with a high FHR to ensure you have enough hot water when you need it most.
WarrantyThe warranty period indicates the manufacturer's confidence in the product's durability and reliability. A longer warranty can provide peace of mind and protection against potential issues. Look for water heaters with a warranty of at least 6-12 years. Consider how long you plan to stay in your home and your willingness to handle potential repairs when evaluating the warranty.
Safety FeaturesSafety features such as automatic shut-off, temperature control, and pressure relief valves are important for preventing accidents and ensuring safe operation. These features can protect your home from potential water damage and reduce the risk of scalding. Prioritize water heaters with comprehensive safety features, especially if you have children or elderly family members in your household.