40 gallon electric water heaters are a popular choice for households seeking reliable and efficient hot water solutions. In 2025, the market offers a variety of top-rated models that combine advanced technology with energy efficiency, ensuring you have a steady supply of hot water for your daily needs. From quick recovery times to smart features that optimize energy use, these heaters are designed to meet the demands of modern living. Whether you're replacing an old unit or installing a new one, exploring the best options can help you make an informed decision for your home.
SALE
−$65.00
GE Appliances 30 Gallon Electric Water Heater with Built-In Wifi & Digital Display, Smart Water Heater, 240 Volt
- REAL CAPACITY - Get the most hot showers from the only water heater that holds a true 30 gallons of water (Compared to 30 gallon electric steel tank water heaters per DOE rated gallon capacity)
- MAXIMUM PERFORMANCE - Best in class unit that delivers 60 gallons of hot water in the first hour (Measured through DOE First Hour Rating)
- QUICK RECOVERY - Two powerful 5500W heating elements ensure available hot water quickly after each use
- HOUSEHOLD SIZE - Provide hot water for the whole family of 1 to 3 persons
- BUILT-IN WIFI - Easily adjust temperatures, set vacation mode schedules and receive notifications with Built-in WiFi powered by SmartHQ
$594.00
SALE
−$20.53
Rheem 18kW 240V Tankless Electric Water Heater, Gray
- External digital thermostatic control with LED display (+/1 degree accuracy)
- Most advanced self-modulation, adjust power to meet hot water demand
- Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
- Simple installation – bottom 3/4 inch NPT water connections
- Threaded for easy replacement, simple installation, digital temperature display
$428.47
SALE
−$44.85
GE Appliances 10 Gallon Versatile Plug and Play Electric Water Heater with Adjustable Thermostat, Easily Installs Where You Want It, 120 Volt
- EASY INSTALLATION - Installs in minutes with existing plumbing. Uses standard 3/4-in NPT compatible water connections and connects into any 120-Volt supply
- COMPACT DESIGN - Offers flexibility and space savings in places like kitchens, bathrooms, laundry rooms, RVs, cabins, barns, garages, etc
- LEADING WARRANTY- 8- year limited replacement or 8-year tank and parts/1-year labor warranty for peace of mind
- HOT WATER BOOSTER - Works as a standalone unit, or inline with another water heater to boost washing machines or longer plumbing runs
- ADJUSTABLE THERMOSTAT - Easily change temperatures to your desired settings
$254.15
State Proline Series 50 Gallon Capacity 4.5 kW Heating Input Tall Electric Water Heater
- 62 Gallons per Hour First Hour Rating
- 0.92 Uniform Energy Factor Rating
- 21 Gallons per Hour Recovery at 90°F Rise
- Dimensions: 60-1/2" H x 20-1/2" D
$1,153.84
SALE
−$91.24
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
- Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature.Amperage Draw : 54 A.Special Features: Energy Efficient
- Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
- Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
- EcoSmart ECO 11 Sizing; 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
$207.76
Electric Tankless Water Heater WINTMP, 27kW 240V Whole House Hot Water Supply Shower, Self-Regulating on-Demand Hot Water, with LED Temperature Display and WIFI Control, Space-Saving WN27
- 【Important Note】Ensure this tankless water heater meets your installation requirements. It is rated at 27KW - 240 Volts with a maximum amperage of 113A. It requires 3 x 40 Amp DP breakers and 3 x 8/2 AWG wiring with ground, with a recommended 250A household power supply. The unit dimensions are 9.7” (W) x 14 ” (H) x 3.4” (D), the water connection is 3/4" NPT
- 【Stable Water Temperature】 Automatically adjusts energy consumption based on incoming water temperature and flow rate to ensure maximum efficiency, continuous stable temperature, and optimal power usage. The digital temperature display ranges from 86°F to 140°F. It provides 2.7 to 6.5 gallons of hot water per minute, It is perfect for residential shower use, eliminating the need to wait for preheating. There’s no longer any concern about running out of hot water in the tank, and you won’t experience temperature fluctuations during your shower
- 【Energy Saving】The self-regulating technology adjusts power input based on real-time flow and temperature settings. When the water flow decreases, the system reduces power usage, and when not in use, it consumes no energy, achieving up to 99% energy savings, suitable for 2-4 usage points in the home
- 【Space Saving】The WN27 features a wall-mounted compact design, occupying 90% less space compared to traditional tank water heaters. It is suitable for tight areas and can be easily installed anywhere. It provides an endless supply of hot water in a short time without the need to wait for preheating. Equipped with remote WIFI control, you can adjust the temperature without being near the water heater
- 【Safe Usage】Safety is always a top priority for WINTEMP. Equipped with multiple protection features such as leakage protection, overheat protection, and dry-fire protection, it ensures your safety, allowing you to enjoy hot water anytime, anywhere with peace of mind. 2-year warranty period.
$369.99
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
- ON/OFF Dial Control with adjustable digital temperature display
- Self-modulating power control
- 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
- Bottom 3/4" NPT water connections
- On demand, consistent and continuous hot water
$497.99
GE Appliances 26 Gallon Versatile, Electric Water Heater with Adjustable Thermostat & Drain Valve, Side Port, Lowboy, 240 Volt
- LOWBOY - Make the most of tight spaces with a water heater that fits where height is a concern
- HOUSEHOLD SIZE - Provide hot water for the whole family of 1 to 3 persons
- EASY SET UP - Replace your old water heater quickly and easily using standard water and electrical connections
- QUICK RECOVERY - Two powerful, 5500W heating elements ensure available hot water quickly after use
- INLET TUBE - Replenishes water from the bottom of the tank to maximize hot water delivery
$609.99
SALE
−$2.39
EWH-01 Electric Water Heater Tune-Up Kit, Includes Two Water Heater Thermostats, Two Water Heater Heating Elements - 4500W 240V, T-O-D Style Thermostat, Water Heater Replacement Parts
- 【ONE YEAR WARRANTY】Z Turn-up Kit Includes (2) 4500W 240V COPPER Water Heater Element, Insert Length: 13-9/16". 3500W@208V. Fit Most Brands of Water Heater >= 30 Gallons.
- 【ONE YEAR WARRANTY】Includes (1) Upper Water Heater Thermostat, (1) Lower Water Heater Thermostat, 120V ~ 480V
- 【Interchangeable】Therm-O-Disc Type Thermostat, Can interchange with APCOM type.
- 【More Durable】Extra Longer Life of Heating Element with Chromed Coating on the Heating Area
- 【Versatile Fits】The Tune-up Kits in Plumber's pack Fits Most Water Heaters with Dual Elements - Rheem, A.O Smith, Whirlpool, GE, Richmond, Ruud, BRADFORD WHITE; CRAFTMASTER; GENERAL ELECTRIC; GS WOOD; KENMORE; LOCHINVAR; RELIANCE; RICHMOND; STATE; MOR-FLO; APCOM etc
$35.59
Rheem 11kW 240V Tankless Electric Water Heater
- ON/OFF Dial Control with adjustable digital temperature display
- Self-modulating power control
- 11kW Model Flow Rate: up to 2.68 GPM
- Side 1/2" NPT water connections
- On demand, consistent and continuous hot water
$269.00
Last update on 2025-05-02 / Affiliate links / Images from Amazon Product Advertising API