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Best electric water heaters tanklesses - Holiday Sale 2025

Last Updated - December 14, 2025

1
Best Choice
14% Off

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Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Rheem
14% Off

Rheem RTEX-27 240V 3 Heating Chambers Residential Tankless Water Heater

Rheem

$574.46

$671.62
(14% Off)

More Details
Main highlights
- Threaded for easy replacement, simple installation, digital temperature display
- Simple installation – bottom 3/4 inch NPT water connections
- Most advanced self-modulation, adjust power to meet hot water demand
- External digital thermostatic control with LED display (+/1 degree accuracy)
- Durable Copper immersion three heating elements, field Serviceable
$574.46
$671.62 (14% Off)
2
13% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

EcoSmart
13% Off

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

EcoSmart

$515.99

$599.00
(13% Off)

More Details
Main highlights
- Voltage - 240
- Single phase
- Digital temperature control allows temperature settings in 1 degree increments.
- Configured for climates where incoming water temperature can reach as low as 37 degrees.
- Capable of heating nearly 3 gpm.
$515.99
$599.00 (13% Off)
3

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Rheem

Rheem 18kW 240V Tankless Electric Water Heater, Gray

Rheem

$449.00

More Details
Main highlights
- Threaded for easy replacement, simple installation, digital temperature display
- Simple installation – bottom 3/4 inch NPT water connections
- Most advanced self-modulation, adjust power to meet hot water demand
- External digital thermostatic control with LED display (+/1 degree accuracy)
- Durable Copper immersion two heating elements, field Serviceable. Flow Rate- up to 4.4 GPM
$449.00
4
11% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Orbek
11% Off

14kW Tankless Water Heater Electric, ORBEK 240 Volt On Demand Instant Hot Water Heater, with LED Digital Display, ETL Certified, Up to 3.38 GPM for 2-3 Point of Use

Orbek

$249.99

$281.99
(11% Off)

More Details
Main highlights
- Stable Temperature Control: The built-in chip adjusts heating power 20,000 times per second, keeping water temperature stable within 1°F for a comfortable shower experience
- Note: Things to know before buying, Our Orbek tankless water heater electric 14kw requires a 240V/60AMP two-pole breaker, 1 set of 6 AWG wires and 1/2" NPT water connections.
- LED Digital Display: Our tankless electric water heater features a high-definition screen with soft lighting for easy temperature adjustments between 86°F and 140°F. It also displays real-time temperature changes
- Instant Hot Water Supply: Orbek electric tankless water heater 240v can provides up to 3.38 GPM of on demand endless hot water and ensure comfortable hot water for 2-3 points of use simultaneously
- High Energy Efficiency: This on demand hot water heater electric utilizes water-electricity separation to minimize scale and corrosion. It provides endless hot water in just 3 seconds with an impressive efficiency, potentially reducing electricity costs by up to 60% compared to traditional tank-style heaters
- Easy Install: With a compact size of 14.2"H x 9.5"L x 3.1"W, our electric hot water heater saves over 50% of space compared to traditional tank water heaters, fitting easily into most corners of your home. We have also made structural improvements to the product to make installation easier
- Comprehensve Security Protection: The tankless hot water heater is ETL certified and packed with advanced safety features, including leakage protection, over-temperature protection, dry-heating protection and lighting resistance etc. Each product undergoes rigorous testing before leaving the factory to ensure its safety and normal operation
- After-Sale Service: We provide long-term return & exchange services along with professional technical consulting support
$249.99
$281.99 (11% Off)
5
Best Value
14% Off

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Rheem
14% Off

Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray

Rheem

$469.99

$546.85
(14% Off)

More Details
Main highlights
- PROVEN PERFORMANCE: Continuous hot water when you need it for the whole home (review performance guide image to confirm this water heater will provide the hot water needed based on geographic location). Ground water temperature impacts temperature rise and gallons per minute.
- ELECTRICAL REQUIREMENTS: 3 x 40 AMP Double Pole Breakers Required. 200 AMP Household service recommended. Ensure your home can accomodate the power supply and that enough space is available in your breaker panel for this unit.
- EFFICIENT: Tankless electric water heaters save space, energy, money, and require no venting.
- EASILY ADJUSTABLE: ON/OFF Dial Control with adjustable digital temperature display allows for adjustments in 1-degree increments from 80-140 degrees F.
$469.99
$546.85 (14% Off)

Best electric water heaters tanklesses - Holiday Sale 2025

Rheem RTEX-27 240V 3 Heating Chambers Residential Tankless Water Heater

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

Rheem 18kW 240V Tankless Electric Water Heater, Gray

14kW Tankless Water Heater Electric, ORBEK 240 Volt On Demand Instant Hot Water Heater, with LED Digital Display, ETL Certified, Up to 3.38 GPM for 2-3 Point of Use

Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray

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