Looking for a 20-gallon electric water heater but unsure which one to choose? We’ve got you covered! In this guide,
we present the top 5 best electric water heaters that offer exceptional energy efficiency, compact designs, premium features, and much more.
Read on to discover the perfect water heater for your needs.
Rheem Performance 20-Gallon Electric Water Heater: Top Pick
We have placed the Rheem 20-Gallon Electric Water Heater at the top of our list, and here’s why. Rheem is a trusted brand that continues to enhance its product performance over time.
This water heater is equipped with an efficient heating element that quickly heats water, saving you time and energy.
Its compact design allows for easy installation under the sink or in small spaces, making it a practical choice for homes with limited space.
Point-of-use, can be installed under sinks or other small spaces
Warranty
6-year limited warranty on tank and 1-year warranty on parts
Safety Features
Thermal cut-off, high-temperature limit switch
Energy Efficiency
Energy-efficient for small applications and limited water needs
Top 2 in the list:-Stiebel Eltron 20 Gallon Electric Water Heater
Stiebel Eltron 20-Gallon Electric Water Heater is one of the best electric water heaters, which is why we have placed it in the second position. It is also energy-efficient, consuming minimal electricity.
This heater uses advanced technology and comes with a tank warranty of 6 years and a parts warranty of 3 years. You can check out the rest of the details in the table below
Specification
Details
Model
Stiebel Eltron 20-Gallon Electric Water Heater
Voltage
240V
Heating Element
One 4.5 kW heating element
Temperature Range
Adjustable from 60°F to 140°F (15°C to 60°C)
Tank Material
Glass-lined steel
Installation
Point-of-use, wall-mount or floor installation options
Warranty
7-year limited warranty on tank and 3-year warranty on parts
Energy-efficient design for small to medium households
Top 4 in the list:-EcoSmart ECO 20 Electric Tankless Water Heater
The EcoSmart ECO 20 Electric Tankless Water Heater is one of the top electric water heaters, which is why we’ve ranked it fourth on our list.
This energy-efficient appliance consumes very little power, helping to reduce your electricity bills. Its compact design allows for easy installation, even in small spaces.
Additionally, it features temperature control, so you can heat water to your desired level based on your needs
Specification
Details
Model
Ecosmart ECO 20 Electric Tankless Water Heater
Voltage
240V
Temperature Range
80°F to 140°F (27°C to 60°C)
Flow Rate
Up to 3.5 gallons per minute at 35°F rise in temperature (varies with inlet temperature)
Tank Material
No tank (tankless design)
Installation
Wall-mounted, requires professional installation
Warranty
Limited lifetime warranty on the unit and 5-year warranty on parts
Energy Efficiency
Highly energy-efficient due to on-demand heating (no standby heat loss)
Top 5 in the list:-Whirlpool 20-Gallon Electric Water Heater
We’ve ranked the Whirlpool 20-Gallon Electric Water Heater last on our list because it continuously improves its performance over time.
The heater features a heating element that heats water quickly, and its compact design makes it easy to install under the sink or in small spaces
Specification
Details
Brand
Whirlpool
Model
20-Gallon Electric Water Heater
Capacity
20 gallons (suitable for 1-2 people)
Design
Compact, Point-of-Use
Voltage Options
120V / 240V
Installation
Side-Mounted Water Connections for Easy Installation
Warranty
6 years (limited tank and parts warranty)
Energy Efficiency
ENERGY STAR® certified
Ideal Usage
Small families, tight spaces, or under-sink installation
Last Says
All the electric water heaters mentioned above are excellent choices depending on your specific needs. From Rheem’s reliable performance to Stiebel Eltron’s high energy efficiency, each model offers unique benefits for homes with limited space.
Ready to make a choice? Let us know which water heater works best for your needs in the comments below!
