Top 29 EcoSmart Tankless Water Heaters on Amazon (Verified You can Buy)
Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric Mini Tank Water Heater
EcoSmart
ECO MINI 2.5
17.0 x 10.9 x 10.9 Inches
15.8 Pounds
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Sleek and compact design with digital output temperature display
ECOSMART tankless water heaters are 99.8-percent energy efficient
Top 2
FSA QC MEDLRG Replacement Part for Ecosmart
Apopip
18 24 27 And 36
0.98 x 0.99 x 0.99 inches
0.1653 Pounds
Ratings for Apopip (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Yinxianghui | - | ❌ | ❌ | ❌ |
Features
Tankless electric water heater flow sensor assembly
Flow sensor for Ecosmart electric tankless water heaters
Ecosmart ECO MINI 1 1.5-Gallon 120V Electric Mini Tank Water Heater,White
EcoSmart
ECO MINI 1
14.5 x 10.0 x 10.0 inches
11.7 pounds
99.8% energy efficient
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Sleek and compact design with digital output temperature display
ECOSMART tankless water heaters are 99.8-percent energy efficient
Top 4
Best for Whole House
27kW Tankless Water Heater Electric 240V, Whole House, Gray
SIVUATEK
TSB-270
12.2 x 12.2 x 17.26 inches
Ratings for SIVUATEK (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| SIVUATEK-US | - | ❌ | ❌ | ❌ |
Features
【PLEASE NOTE BEFORE PURCHASE】Ensure this 27kW 240V tankless electric water heater meets your hot water demand. Requires 3 x 40-amp circuit breaker. Unit dimensions: 15.87"x11.14"x2.87"; standard 3/4" NPT water connection.
【ENERGY-SAVING & EFFICIENT】Eliminate standby energy loss with our electric tankless water heater —no preheating, zero idle power use. Reduce your water heating costs by up to 50% compared to traditional models. Compact and space-saving, it installs flexibly under-sink or on-wall.
Top 5
Best for Inline
Best for Electric
Best for NG
Best for Compact
Best for Digital
Best for Mini
Best for Outdoor
Best for Thermostat
Best for Whole House
Best for Under Sink
Best for Wall
Best for Residential
Best for High Efficiency
Best for 120 Volt
Best for 10 Gallon
Best for 60 Gallon
Best for 80 Gallon
Best for 100 Gallon
Best Tankless Water Heaters
Best for Takagi
Best for Noritz
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
Best for 2 GPM
Best for 9 GPM
Best for 11 GPM
Best for 12 GPM
Best for 14 GPM
Best for 15 GPM
110V Tankless Water Heater Electric, 3000W Tankless Electric Water Heater Instant, Under Sink Water Heater with Digital Display, On Demand Hot Water Heaters Electric for Kitchen Washin Bathroom.
xwdzswgs
Tankless Water Heater
4.32 x 4.32 x 7.86 Inches
Ratings for xwdzswgs (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| liuyiliang7788 | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Tankless Electric Water Heater - This electric tankless water heater uses stainless steel and ABS materials, LED display. With 3000W power, the electric water heater tankless can raise the water by 82° F(0.3GPM) -131° F(0.5GPM) in seconds. The instant water heater can set Fahrenheit or Celsius degrees by holding the power button for 6 seconds. This 110 volt electric tankless hot water heater uses advanced technology, no need to preheat, eliminating the long waiting time for hot water!
Safety Intelligence Reliable - This instant hot water heater has multiple protection functions. IPX4 waterproof, water and electricity isolation, leakage protection, dry boil protection, and automatic power off under overheating and inactivity. On demand water heater with LCD digital display, intelligent detection of working status, and performance. The thermal efficiency of electric hot water heater is as high as 98%, allowing you to enjoy hot water at any time and save energy.
Top 6
Best Water Heaters
Best for EcoSmart
Best for Inline
Best for Electric
Best for Compact
Best for Thermostat
Best Tankless Water Heaters
Best for Takagi
Best for Noritz
Best for Stiebel Eltron
Best for FOGATTI
Best for Eccotemp
Best for AO Smith
Best for 8 GPM
Best for 11 GPM
EcoSmart ECO 8 Tankless Water Heater, Electric, 8-kW - Quantity 1, 12 x 8 x 4
EcoSmart
ECO 8
4.0 x 8.0 x 12.0 inches
4.75 pounds
99.8%
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| W fashion shop | - | ✅ | ✅ | ✅ |
| MaxWarehouse | 248 | ✅ | ✅ | ✅ |
| Columbiatradestock (S/N Info Recorded) | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
The product is highly durable
The product is easy to use
Top 7
Best for EcoSmart
ecosmart ECOMINI6 Electric Mini Tank Water Heater, ECO 6, White, 6 Gal
EcoSmart
ECOMINI6
20.0 x 13.8 x 14.5 inches
24.9 Pounds
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Features
Sleek and compact design with digital output temperature display
ECOSMART tankless water heaters are 99.8-percent energy efficient
Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White, 23
Stiebel Eltron
239223
4.63 x 16.63 x 14.5 inches
19.0 pounds
High Efficiency
Ratings for Stiebel Eltron (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| FruityFlix LLC | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| POWER HOUSE LLC | - | ❌ | ❌ | ❌ |
| Big Frog Supply | - | ❌ | ❌ | ❌ |
Features
On demand a continuous and unlimited supply of hot water
Sleek design saves space and no venting required, It also features two different temperature memory presets, making it easy to adjust for personalized needs.
Top 9
Best for Rheem
Best for Inline
Best for Tanked
Best for Electric
Best for NG
Best for Thermostat
Best for Whole House
Best for Rheem
Best Tankless Water Heaters
Best for Takagi
Best for Noritz
Best for Rheem
Best for Rinnai
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
Best for 2 GPM
Best for 4 GPM
Best for 5 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Best for 11 GPM
Best for 12 GPM
Best for 14 GPM
Best for 15 GPM
Rheem 11kW 240V Tankless Electric Water Heater
Rheem
RTEX-11
12.63 x 8.25 x 3.63 inches
7.0548 Pounds
99,8%
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Plumber's Paradise | - | ✅ | ✅ | ✅ |
| CASA CAYOS | - | ✅ | ✅ | ✅ |
| AXY Co | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Trena's Liquidation LLC | - | ❌ | ❌ | ❌ |
| MTL Retailers | - | ❌ | ❌ | ❌ |
Features
ON/OFF Dial Control with adjustable digital temperature display
Self-modulating power control
Top 10
Best for EcoSmart
EcoSmart ECOS 27 Tankless Electric Water Heater, 27 kW at 240 Volts, 112.5 Amps with Self Modulating Technology
Ecosmart US
ECOS 27
9.25 x 9.25 x 19.0 inches
10.9 pounds
Ratings for Ecosmart US (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
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
Save Energy; EcoSmart tankless electric water heaters are 96% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
Top 11
THRM QC XLRG Thermistor For Ecosmart Tankless Electric Water Heaters with Inlet/Outlet Wires,Fits 18kW 24kW 27kW Models
GEAIN
XLRG
1.0 x 0.5 x 0.1 inches
Ratings for GEAIN (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| SHLIALI | - | ❌ | ❌ | ❌ |
Features
Replacement Part: This Thermistor with Inlet/Outlet Wires replacement part designed for Ecosmart Tankless Electric Water Heaters.
Compatibility: Fits for Ecosmart 18kW, 24kW, and 27kW Tankless Electric Water Heater models with Plastic Cover on Flow Meter
Top 12
Best for Rheem
Best for Inline
Best for Tanked
Best for Whole House
Best for Rheem
Best for 20 Gallon
Best for 50 Gallon
Best Tankless Water Heaters
Best for Rheem
Best for AO Smith
Best for 3 GPM
Best for 5 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Best for 11 GPM
Best for 12 GPM
Best for 14 GPM
Best for 15 GPM
Rheem 18kW 240V Tankless Electric Water Heater
Rheem
RTEX-18
18.5 x 14.5 x 3.5 inches
14.78 pounds
99.8%
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Miami Water Heater | - | ✅ | ✅ | ✅ |
| CARESAN | - | ✅ | ✅ | ✅ |
| CASA CAYOS | - | ✅ | ✅ | ✅ |
| Amazon.com | - | ✅ | ✅ | ✅ |
| Trena's Liquidation LLC | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Mega Mart Warehouse | - | ❌ | ❌ | ❌ |
| PEACHSTATESTEALSANDDEALS | - | ❌ | ❌ | ❌ |
| MTL Retailers | - | ❌ | ❌ | ❌ |
Features
External digital thermostatic control with LED display (+/1 degree accuracy)
Most advanced self-modulation, adjust power to meet hot water demand
Top 13
Best for Rheem
Best for Inline
Best for Tanked
Best for Residential
Best for Rheem
Best for Rheem
Best for AO Smith
Best for 6 GPM
Best for 9 GPM
Best for 15 GPM
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY
Rheem
RTEX-13
12.63 x 8.25 x 3.63 Inches
3.9683 Pounds
at least 99.8% energy efficient
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| CARESAN | - | ✅ | ✅ | ✅ |
| CASA CAYOS | - | ✅ | ✅ | ✅ |
| Miami Water Heater | - | ✅ | ✅ | ✅ |
| PRODUCT X MAS | 9,301 | ✅ | ✅ | ✅ |
| Bullit Sales | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Columbiatradestock (S/N Info Recorded) | - | ❌ | ❌ | ❌ |
| Direct Supply Store | 5,162 | ❌ | ❌ | ❌ |
| USA-Fast-Delivery LLC | - | ❌ | ❌ | ❌ |
| MTL Retailers | - | ❌ | ❌ | ❌ |
Features
External adjustable digital thermostatic control with LED display (+/1 degree accuracy
Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
Top 14
Best for 10 Gallon
Best for 100 Gallon
Best for Takagi
Best for Noritz
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
ECOAPTUNIT 110V Tankless Water Heater Electric, 3000W
ECOAPTUNIT
110v tankless water heater 3000w
4.53 x 4.53 x 7.86 inches
Ratings for ECOAPTUNIT (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| ECOAPTUNIT | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Tankless Water Heater Electric: This electric tankless water heater is crafted from stainless steel and ABS, featuring a built-in LED display. With 3000W of power, it can raise water temperature by 35°F in a few seconds at 0.5 GPM or 21°F at 0.3 GPM within seconds.The unit supports both Fahrenheit and Celsius settings—simply press and hold the power button for 6 seconds to switch between them. Operating on a standard 110V outlet, this advanced instant heater eliminates the need for preheating, so you no longer have to wait for warm water.
Reliable and Smart: This 110v tankless water heater integrates multiple safety safeguards such as IPX4 waterproofing, isolation of water and electricity, leak detection, dry-boil prevention, and auto power-off triggered by overheating or idle conditions. Its LED screen provides intelligent real-time feedback on working status and performance. Boasting a thermal efficiency of up to 98%, this unit ensures warm water is always available without wasting energy.
Top 15
Best for Tanked
Best for Boiler
Best for Takagi
Best for Stiebel Eltron
Best for 12 GPM
Best for 14 GPM
14kW Tankless Water Heater Electric, SIVUATEK 240V Instant On-Demand Hot Water Heater, 2 Point of Use, Self-Modulating, ETL Certified, Endless Water Supply for Home
SIVUATEK
TSB-140
12.2 x 12.2 x 17.25 inches
15.0995 Pounds
Ratings for SIVUATEK (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon Resale | - | ❌ | ❌ | ❌ |
| SIVUATEK-US | - | ❌ | ❌ | ❌ |
Features
【PLEASE NOTE BEFORE PURCHASE】Ensure this 14kW 240V tankless electric water heater meets your hot water demand. Requires 1 x 60-amp circuit breaker. Unit dimensions: 15.87"x11.14"x2.87"; standard 1/2" NPT water connection. No need to disassemble the housing for wiring, making installation faster and more convenient.
【ENERGY-SAVING & EFFICIENT】Eliminate standby energy loss with our electric tankless water heater —no preheating, zero idle power use. Reduce your water heating costs by up to 60% compared to traditional models. Compact and space-saving, it installs flexibly under-sink or on-wall.
Top 16
Best for EcoSmart
Ecosmart POU 6 Point of Use Electric Tankless Water Heater, 6 KW, 1/20, 1/40, 1/95, White
EcoSmart
POU 6
0.0 x 11.0 x 6.0 inches
3.85 pounds
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ✅ | ✅ | ✅ |
| VirVentures | 194 | ❌ | ❌ | ❌ |
Features
Designed for single point-of-use applications such as hand sinks in RVs, boats, restaurants, hotels, and medical offices requiring low flow rates not exceeding 1 GPM
Electric Tankless Water Heater, 13kW 240V on Demand Instant Endless Electric Hot Water Heater for Residential Whole House Shower, Self-Modulating LED Display Knob Control, CSA Certified, Space Saving
LiberLive
RE13K
7.9 x 7.9 x 11.0 Inches
5.0 Pounds
High
Ratings for LiberLive (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon Resale | - | ❌ | ❌ | ❌ |
| LiberLive Store | - | ❌ | ❌ | ❌ |
Features
[Perfectly Sized for Your Needs] - This 13 kW electric tankless water heater operates at 240V and requires a 60-amp bipolar circuit breaker. Compact dimensions (7.9" x 2.8" x 11") and 1/2" NPT water connections ensure easy installation in any space
[Energy & Cost Efficient] - Say goodbye to wasted energy! Unlike traditional tank heaters, this electric tankless model heats water on demand, consuming zero energy when idle. Enjoy up to 60% savings on heating costs while eliminating standby heat loss. Its space-saving design fits anywhere—no bulky storage tank needed!
Top 18
Best for 30 Gallon
VEVOR Tankless Water Heater Electric, 27KW 240V Black Instant Water Heater, LCD Touch Screen, Digital Temperature Display, Child Security Lock, On Demand for Bathroom, Kitchen, Shower, Mall, Salon
VEVOR
JN27
10.94 x 10.94 x 3.937 Inches
13.56 pounds
Ratings for VEVOR (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| VEMIXO | - | ❌ | ❌ | ❌ |
| Amazon.com | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Die-Cast Aluminum Heating: The water and electricity are separated, with no water tank, avoiding the buildup of scale and reducing the risk of electric leakage. The 27kW heating system can provide water at 30-60°C / 86-140°F within seconds. Before purchasing, please carefully review the product details (voltage, power, additional accessories and parts required, installation information, etc.)
Applicable Regions: You can choose the ideal tankless water heater based on your location. Our hot water heaters feature constant temperature control and over-temperature protection, so you don’t need to worry about sudden temperature fluctuations during showers
Top 19
Best for Rheem
Best for Rinnai
Best for 2 GPM
Best for 3 GPM
Best for 4 GPM
Best for 6 GPM
Best for 9 GPM
Best for 12 GPM
Best for 14 GPM
Westinghouse 14kW Tankless Water Heater Electric 240V, Wifi, ETL, Gray
Westinghouse
9.56 x 9.56 x 12.59 Inches
Ratings for Westinghouse (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Westinghouse Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
【Dedicated Circuit Requirements & Installation】This Westinghouse tankless water heater electric requires a dedicated 60A double-pole breaker and 6 AWG wire at 240V for stable, safe operation. With 1/2" NPT connections and a compact wall-mountable design at just 12.59"H x 9.56"W x 3.28"D that takes zero floor space, this Westinghouse electric tankless water heater offers quick, hassle-free installation—whether new build or replacement, just as you'd expect from a genuine Westinghouse tankless water heater.
【3s Instant Heating& Strong GPM Output】This Westinghouse electric tankless water heater 240v delivers hot water in just 3 seconds with 98% thermal efficiency. The minimum start-up flow rate is 0.53 GPM.When inlet temperature is 62°F and outlet is set to 105°F, flow reaches 3.4 GPM—supporting 2 water points simultaneously. This on demand water heater brings endless instant hot water to your daily routine. That's the reliable performance you expect from a 14kW Westinghouse tankless water heater electric.
Top 20
Best for Inline
Best for Gas Powered
Best for LP
Best for Digital
Best for Outdoor
Best for Indoor
Best for Propane
Best for 20 Gallon
Best for Takagi
Best for Noritz
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Best for 11 GPM
Best for 12 GPM
Best for 14 GPM
Best for 15 GPM
18L Tankless Water Heater Propane with Digital Display 4.76 GPM 115425 BTU
Baococo
YYJ24046-18
12.6 x 12.6 x 23.23 inches
Ratings for Baococo (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Features
Efficient & Energy-Saving: Built with cutting-edge, precision-engineered combustion technology, this propane tankless water heater delivers consistent, powerful performance while slashing fuel consumption and lowering operational burning noise for a quieter user experience. It generates a robust 115,425 BTU/hour of heating power, enough to meet steady hot water demands for camping, RV travel, outdoor bathing, and pet washing.
Reliable Technical Specifications: This portable propane water heater boasts a maximum heating output of 115,425 BTU/hour, with an adjustable temperature range from a minimum 17°F up to a maximum 113°F to match different usage needs. The system delivers a steady 4.76 gallons per minute of continuous hot water flow, perfect for quick showers, dishwashing, or pet cleaning.
Top 21
Best Water Heaters
Best for CAMPLUX
Best for Inline
Best for Wall
Best for 120 Volt
Best for 100 Gallon
Best Tankless Water Heaters
Best for Takagi
Best for Noritz
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for CAMPLUX
Best for AO Smith
Best for 7 GPM
Best for 15 GPM
CAMPLUX Tankless Water Heater Electric 120V, 4.5kW Point of Use Instant Hot Water Heater, Save Space for Sink Wall Mounted LED Digital Display CSA Certified
CAMPLUX ENJOY OUTDOOR LIFE
TE05N4
7.4 x 7.4 x 10.9 inches
4.5 pounds
Ratings for CAMPLUX ENJOY OUTDOOR LIFE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Camplux | - | ❌ | ❌ | ❌ |
Features
【Instant Hot Water】 4.5kW under sink water heater only heats the water when you need it and no waiting to preheat, saving up to 50% in energy consumption. The temperature rise of 1.0 GPM is 50°F. Easy to get hot water in 3 seconds
【Save Space】 With a mini size of 10.95W×2.52H×7.4D inch, mounted multi-angled in small spaces throughout the kitchens, wet bars, schools, hospitals, hair salons, and boats
Top 22
Best Water Heaters
Best for Compact
Best for Mini
Best for Waterproof
Best for Under Sink
Best for Wall
Best for 10 Gallon
Best for 60 Gallon
Best for 100 Gallon
Best Tankless Water Heaters
Best for Takagi
Best for Noritz
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
Tankless Water Heater Electric, 3000W Tankless Electric Water Heater 110V, On Demand Hot Water Heater Electric with Digital Display, Electric Tankless Hot Water Heater for Kitchen Bathroom Washin
xwdzswgs
Water Heater Electric
4.31 x 4.31 x 7.85 Inches
98%
Ratings for xwdzswgs (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| liuyiliang7788 | - | ❌ | ❌ | ❌ |
Features
Electric Tankless Water Heater - This instant water heater is equipped with state-of-the-art technology, with 3000W power, LED display. The electric water heater tankless can raise the water by 82° F(0.3GPM) -131° F(0.5GPM) in seconds. The instant hot water heater can set Fahrenheit or Celsius degrees by holding the power button for 6 seconds. Water heater compatible with the US standard 110 volts.
Safety Intelligence Reliable - This on demand water heater has multiple protection features. IPX4 waterproof, leakage protection, dry-burning protection, automatic power-off in over-temperature and inactive states. The thermal efficiency of tankless hot water heater is as high as 98%. Tankless hot water heater electric with LCD digital display, intelligent detection of working status, and performance to ensure safety.
Top 23
Best for 8 GPM
Electrolux 8kW Tankless Water Heater Electric 240v Under Sink
Electrolux
8kW
8.1 x 8.1 x 6.9 Inches
Ratings for Electrolux (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Electrolux Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
𝐈𝐧𝐬𝐭𝐚𝐧𝐭 𝐇𝐨𝐭 𝐖𝐚𝐭𝐞𝐫 𝐇𝐞𝐚𝐭𝐞𝐫 24𝟎𝐕: On Demand Water Heater No waits! 8kW heating tech delivers stable, continuous flow ideal for handwashing, dish rinsing, and sink use – no preheating tanks needed. With a 77°F temperature rise, it provides 1.97 GPM and a maximum temperature of 104°F
𝐔𝐧𝐝𝐞𝐫 𝐒𝐢𝐧𝐤 𝐖𝐚𝐭𝐞𝐫 𝐇𝐞𝐚𝐭𝐞𝐫: Fits tight spaces (6.9"x8.1"x2.5") with 1/2" NPT connections. Requires only one dedicated 40A circuit – DIY-friendly setup! takes up 90% less space than traditional water heaters
Top 24
Best for Rheem
Best for Tanked
Best for Electric
Best for Rheem
Best Tankless Water Heaters
Best for Noritz
Best for Rheem
Best for Stiebel Eltron
Best for Eccotemp
Best for 5 GPM
Best for 6 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Best for 14 GPM
Best for 15 GPM
Rheem 8kW 240V Tankless Electric Water Heater
Rheem
RTEX-08
12.6 x 8.25 x 3.63 inches
8.0 Pounds
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| FFON SSON | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Binary Edge | - | ❌ | ❌ | ❌ |
Features
ON/OFF Dial Control with adjustable digital temperature display
Self-modulating power control
EcoSmart POU 4T 3.5kW 120v Thermostatic Point of Use Tankless Electric Water Heater
EcoSmart
POU 4T
11.0 x 11.0 x 7.0 inches
4.0 pounds
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Amazon.com | - | ❌ | ❌ | ❌ |
| MTL Retailers | - | ❌ | ❌ | ❌ |
Features
Perfect fit to provide hot water for point-of-use or low-flow applications.
Consistent, on demand hot water when you need it that never runs out.
Ecosmart ECO MINI 4 4-Gallon 120V Electric Mini Tank Water Heater,White
EcoSmart
ECO MINI 4
17.5 x 16.2 x 13.0 inches
19.3 pounds
[INFERRED: Likely to be relatively efficient]
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Amazon.com | - | ❌ | ❌ | ❌ |
| Columbiatradestock (S/N Info Recorded) | - | ❌ | ❌ | ❌ |
Features
Plugs into 120V outlet
Pressure Relief Valve Included
Top 27
Best for Inline
Best for 20 Gallon
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ECOAPTUNIT 220V Tankless Water Heater Electric, 20AMP 3800W
ECOAPTUNIT
XY-FG
4.53 x 4.53 x 7.86 Inches
Ratings for ECOAPTUNIT (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| ECOAPTUNIT | - | ❌ | ❌ | ❌ |
Features
Tankless Water Heater Electric: This electric tankless water heater is crafted from stainless steel and ABS, featuring a built-in LED display. With 3800W of power, it can raise water temperature by 33°F in a few seconds at 0.6 GPM or 22°F at 0.4 GPM within seconds. The unit supports both Fahrenheit and Celsius settings—simply press and hold the power button for 6 seconds to switch between them. Operating on a 220V circuit, this advanced instant heater eliminates the need for preheating, so you no longer have to wait for warm water.
Reliable and Smart: This 220v tankless water heater integrates multiple safety safeguards such as IPX4 waterproofing, isolation of water and electricity, leak detection, dry-boil prevention, and auto power-off triggered by overheating or idle conditions. Its LED screen provides intelligent real-time feedback on working status and performance. Boasting a thermal efficiency of up to 98%, this unit ensures warm water is always available without wasting energy.
27kW Tankless Water Heater Electric, ThermoMate 240 Volt Instant On-Demand Hot Water Heater with Touch Control, Max 6.6 GPM Self-Modulating, ETL Certified for Residential Indoor Shower
thermomate
EH270
13.15 x 13.15 x 17.09 inches
19.0 Pounds
Ratings for thermomate (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| ThermoMate Official | - | ❌ | ❌ | ❌ |
Features
Electrical & Installation Requirements: Before purchasing, please ensure your home's main panel has a total electrical capacity of at least 150 Amps. This 27kW unit requires 3 x separate 40 Amp double-pole breakers and 3 x sets of 8 AWG copper wires, and standard 3/4" NPT water connections for proper installation
Instant & Endless Hot Water: Powering up to 6.6 GPM of on-demand hot water, the ThermoMate 240V electric tankless water heater ensures a continuous supply without running out. Perfect for running up to 3-4 plumbing fixtures simultaneously (such as 2 shower and a bathroom sink) depending on your inlet water temperature
Top 29
Best for EcoSmart
EcoSmart ECOS 18 Tankless Electric Water Heater, 18 Kw at 240 Volts, 75 Amps with Patented Self Modulating Technology
Ecosmart US
ECOS 18
9.25 x 9.25 x 19.0 inches
9.3 pounds
Ratings for Ecosmart US (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
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 temperaturetemperature
Save Energy; EcoSmart tankless electric water heaters are up to 96% thermal energy efficient; heats water on demand unlike a tank heater that maintains water temperature even when not being used.
Top 10 EcoSmart Tankless Water Heaters - Verified to Buy (October 2026)
- 1. Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric Mini Tank Water...
- 2. FSA QC MEDLRG Replacement Part for Ecosmart
- 3. Ecosmart ECO MINI 1 1.5-Gallon 120V Electric Mini Tank Water...
- 4. 27kW Tankless Water Heater Electric 240V, Whole House, Gray
- 5. 110V Tankless Water Heater Electric, 3000W Tankless Electric Water Heater...
- 6. EcoSmart ECO 8 Tankless Water Heater, Electric, 8-kW - Quantity...
- 7. ecosmart ECOMINI6 Electric Mini Tank Water Heater, ECO 6, White,...
- 8. Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus...
- 9. Rheem 11kW 240V Tankless Electric Water Heater
- 10. EcoSmart ECOS 27 Tankless Electric Water Heater, 27 kW at...
Top 10 EcoSmart Tankless Water Heaters Brands on Amazon
Here is the list of top-rated brands that were evaluated by CherryPicks.
- EcoSmart
- Apopip
- SIVUATEK
- xwdzswgs
- Stiebel Eltron
- Rheem
- Ecosmart US
- GEAIN
- ECOAPTUNIT
- LiberLive
Related EcoSmart Tankless Water Heaters Guides
For more personalized EcoSmart Tankless Water Heaters guides, Check those pages,
Brand
Top 10 EcoSmart Tankless Water Heaters Sellers: CPR Seller Rank List
CPR sellers rank is based on CherryPicks-AI bestselling ranking system that helps us analyze each seller's sales trends. The List of top seller ranks is our in-house data, essential for our product ranking to help you make the right shopping choice.
- 1. VirVentures : 178,903 Yearly Feedback , Avg. Ratings 4.7
- 2. MaxWarehouse : 147,519 Yearly Feedback , Avg. Ratings 4.7
- 3. Direct Supply Store : 12,760 Yearly Feedback , Avg. Ratings 4.9
- 4. PRODUCT X MAS : 7,305 Yearly Feedback , Avg. Ratings 4.9
- 5. Big Frog Supply : 6,523 Yearly Feedback , Avg. Ratings 4.5
- 6. VEMIXO : 3,756 Yearly Feedback , Avg. Ratings 4.1
- 7. Camplux : 2,742 Yearly Feedback , Avg. Ratings 4.7
- 8. Plumber's Paradise : 2,222 Yearly Feedback , Avg. Ratings 4.8
- 9. POWER HOUSE LLC : 562 Yearly Feedback , Avg. Ratings 4.6
- 10. MTL Retailers : 499 Yearly Feedback , Avg. Ratings 4.1
| Rank | Name | Yearly Feedbacks | Avg. Ratings |
|---|---|---|---|
| 🥇 | VirVentures | 178,903 | 4.7 |
| 🥈 | MaxWarehouse | 147,519 | 4.7 |
| 🥉 | Direct Supply Store | 12,760 | 4.9 |
| 4 | PRODUCT X MAS | 7,305 | 4.9 |
| 5 | Big Frog Supply | 6,523 | 4.5 |
| 6 | VEMIXO | 3,756 | 4.1 |
| 7 | Camplux | 2,742 | 4.7 |
| 8 | Plumber's Paradise | 2,222 | 4.8 |
| 9 | POWER HOUSE LLC | 562 | 4.6 |
| 10 | MTL Retailers | 499 | 4.1 |
[Get] EcoSmart Tankless Water Heaters Deals (✅Exclusively for Prime)
What does "Amazon Fulfilled" Mean?
Amazon Fulfilled refers to products handled by Amazon's logistics, which indicates that the product is stored, packed, and shipped by Amazon from one of its fulfillment centers.
When you order a product that is "Amazon Fulfilled," Amazon takes care of the storage, packing, shipping, and customer service for that product. This often ensures quicker delivery and better customer service compared to products that are not fulfilled by Amazon. It also means that the product is eligible for Amazon's return policy.
What does "Prime" Mean?
"Prime" refers to Amazon Prime Member (Join Amazon Prime Now), which indicates eligibility for Prime benefits. When you see "Prime" next to a product on Amazon, This generally means that if you are an Amazon Prime member, you can get free two-day shipping on that product, and sometimes even same-day or one-day shipping depending on your location.
Prime members also have access to other benefits, including 2-Day Shipping, Exclusive Member Deals, Prime Video, Buy With Prime, Amazon Music, Prime Gaming, and more.
Shop Prime EcoSmart Tankless Water Heaters Deals
What does "Free Shipping" Mean?
"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.
Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.
Why Should You Trust Us?
Now hundreds and thousands of Rough Plumbing supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best EcoSmart Tankless Water Heaters to buy for new October 2026?
CherryPicks’s Methodology for Evaluating EcoSmart Tankless Water Heaters
We developed the CherryRatings-AI system to identify and score reviews and the CherryPicks-AI ranking system that uses TensorFlow framework to generate the best list, It will help us evaluate Rough Plumbing items that sell on Amazon. The score of items is based on over ten parameters such as analyzing customer review content, product reviewing rating statistics, brand reputation evaluation, comparing product price with features, etc, You can visit How We Rank to learn more in detail.
We collected and analyzed 306 of EcoSmart Tankless Water Heaters reviews based on our selection criteria. It helped us shortlist the top qualified and rated EcoSmart Tankless Water Heaters for Rough Plumbing, We found that most customers choose EcoSmart Tankless Water Heaters with an average price of $260.49, and the top brands are VEVOR, Westinghouse, CAMPLUX ENJOY OUTDOOR LIFE, Electrolux, EcoSmart, Rheem, thermomate And Stiebel Eltron.
Then our expert-level editors reviewed all those quality items and selected the top 29 EcoSmart Tankless Water Heaters for you, We have researched hundreds of sellers and picked the top sellers for Rough Plumbing, including Amazon Resale, VirVentures, MaxWarehouse, Direct Supply Store, PRODUCT X MAS, Big Frog Supply, VEMIXO, Camplux, Plumber's Paradise, POWER HOUSE LLC, MTL Retailers And Amazon.com. The Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric ... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 447 consumers with an average rating of 4.3.
We've helped a lot of satisfied users get the right Tools & Home Improvement product based on their needs, and save lots of time for them to pick EcoSmart Tankless Water Heaters to buy.
Sandy Armstrong is a sit-at-home mom that has used a good number of home appliances — some were good, others average, while some were terribly bad and a waste of money. She is here to help you avoid wasting your money by providing you with honest reviews on appliances.