Top 27 11 GPM Tankless Water Heaters on Amazon (Verified You can Buy)
Top 1
Tankless Water Heater Electric, 11kW 240Volt On Demand Instant Hot Water Heater with LED Digital Display Self-modulating, Overheating Protection, CSA Certified, Up to 2.68 GPM for 2-3 Point of Use
Kweetle
11kW
10.87 x 10.87 x 2.95 inches
5.7 pounds
Ratings for Kweetle (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KW Home&Garden | - | ❌ | ❌ | ❌ |
Features
CONSTANT INSTANT HOT WATER: This tankless water heater electric provides a constant supply of hot water to the home with 24-hour standby. You don't have to wait more than 3 seconds to get plenty of hot water for your shower, and it's instantly hot. Also supports multi-point water supply to meet different household needs. Adjustable temperature range from 86 to 131°F
SAFE AND RELIABLE: Kweetle tankless water heater is CSA certified and has advanced safety features including dry burn protection, overheat protection, and water leakage protection for safer use. In addition, this tankless water heater electric is equipped with a advanced intelligent chip and temperature sensor to ensure that the output water temperature remains stable, providing you with a steady supply of hot water
Top 2
WINTEMP 11kW 240V Tankless Water Heater Electric, On Demand Instant Hot Water Heater, Up to 2.6 GPM, with LED Temperature Display, Self-Modulating Technology ETL Certified
WINTEMP
WN11
9.7 x 9.7 x 14.1 inches
Ratings for WINTEMP (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| WINTEMP | - | ❌ | ❌ | ❌ |
Features
Important Note: Ensure this tankless water heater meets your installation requirements. It is rated at 11KW - 240 Volts with a maximum amperage of 33A. It requires 1 x 50 Amp DP breakers and 8# AWG wiring with ground. The unit dimensions are 9.7” (W) x 14 ” (H) x 3.4” (D), the water connection is 1/2" NPT(Hardwired installation is required)
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. Its maximum hot water output is 2.6 gallons 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, In warmer southern regions, it can support shower use, while in colder areas, it is better suited for sinks, office breakrooms, point-of-use and low-flow applications, and can also be used as a booster heater
Electric Tankless Water Heater, 11kW 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
REK11/13
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 |
|---|---|---|---|---|
| LiberLive Store | - | ❌ | ❌ | ❌ |
Features
[Perfectly Sized for Your Needs] - This 11 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!
ThermoMate Tankless Water Heater Electric, 11kW 240 Volt On Demand Instant Hot Water Heater for Point of Use, Self-Modulating LED Display Knob Control, ETL Certified, 2.15GPM at 35°F Rise
thermomate
ET110HCUS
7.0866 x 7.0866 x 10.6299 inches
11.0 pounds
Ratings for thermomate (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| ThermoMate Official | - | ❌ | ❌ | ❌ |
Features
[Instant Endless Hot Water] - Provide consistent hot water wherever and whenever you need it. 24 hours standby. 11kW powerful heating support up to 3 faucets and large 2.15GPM at 35°F temperature rise. Max temperture up to 131°F. Requires Double Pole 50Amp breaker
[Leak Proof & Maintenance Free] - The first to use cast aluminum heating chamber, Heating element separated from water lines to prevent water leaking and scale & corrosion on heating element, ensuring high heating efficiency and extending usage life span
Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater With Built-in Recirculation 11.0 GPM - RTGH-RH11DVLN
Rheem
RTGH-RH11DVLN
14.8 x 17.3 x 28.7 inches
199000.0 BTUs, .94 UEF
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| GroveMed | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Crown Hardware and Supply | - | ❌ | ❌ | ❌ |
Features
Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Top 6
Best Water Heaters & Parts
Best for Rheem
Best for Tanked
Best for Electric
Best for Timer
Best for Whole House
Best for Rheem
Best for 20 Gallon
Best for 50 Gallon
Best for Takagi
Best for Noritz
Best for Rheem
Best for Stiebel Eltron
Best for Rinnai
Best for EcoSmart
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
Best for 2 GPM
Best for 3 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
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 | - | ❌ | ❌ | ❌ |
Features
External digital thermostatic control with LED display (+/1 degree accuracy)
Most advanced self-modulation, adjust power to meet hot water demand
FOGATTI 11kW Tankless Water Heater Electric, 240 Volt On Demand Instant Hot Water Heater, ETL Certified, Up to 2.6 GPM for 1-2 Point of Use
FOGATTI
11kw
3.5 x 3.5 x 14.3 Inches
Ratings for FOGATTI (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Woot | 118 | ❌ | ❌ | ❌ |
| Westinghouse Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
NOTE：Be sure to understand the wire usage requirements first. Fogatti 11kW 240V tankless water heater electric requires 1 x 50 AMP Two-pole Circuit Breaker and 1-set of 8 AWG wires.Water connection 1/2" NPT. Product size 14.3" x 9.6" x 3.5".
Instant Hot Water Supply: This electric tankless water heater delivers high heating efficiency up to 98%. It heats water instantly upon activation and maintains a stable temperature. With a flow rate of 2.6 GPM, it supports 1-2 simultaneous usage points throughout your home.
Top 8
Best Water Heaters & Parts
Best for 10 Gallon
Best for 100 Gallon
Best for Takagi
Best for Noritz
Best for Rheem
Best for Rinnai
Best for EcoSmart
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
Best for 10 GPM
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
EcoSmart
ECO 11
3.75 x 8.0 x 11.5 inches
6.5 pounds
Energy Efficient
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| 718 Sold It | 7,573 | ✅ | ✅ | ✅ |
| 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.Amperage Draw : 54 A
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
Top 9
Best for 2 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 10
Best for Inline
Best for Tanked
Best for Whole House
Best for 20 Gallon
Best for Takagi
Best for Noritz
Best for Rinnai
Best for FOGATTI
Best for Eccotemp
Best for AO Smith
Best for 2 GPM
Best for 4 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Rheem
RTEX-24
18.25 x 14.5 x 3.5 inches
17.8 Pounds
99.8% Energy efficient
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| GM Not Mo | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Columbiatradestock (S/N Info Recorded) | - | ❌ | ❌ | ❌ |
| Sunny ING | - | ❌ | ❌ | ❌ |
| Nantek | - | ❌ | ❌ | ❌ |
Features
ON/OFF Dial Control with adjustable digital temperature display
Self-modulating power control
Top 11
Best Water Heaters
Best for Inline
Best for Electric
Best for NG
Best for High Efficiency
Best for 40 Gallon
Best Tankless Water Heaters
Best for EcoSmart
Best for 2 GPM
Best for 3 GPM
Best for 5 GPM
Best for 8 GPM
Best for 15 GPM
14kW Tankless Water Heater Electric, ORBEK On Demand Instant Hot Water Heater 240V, Max 3.38 GPM, Supply for 1-2 Fixtures, ETL Certified, Indoor Installation, New Upgraded 2.0
Orbek
14kW 2.0 Model
9.5 x 9.5 x 14.2 inches
Ratings for Orbek (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Westinghouse Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
Note: Please ensure the household circuit breaker panel has a total current capacity of at least 150 amps. 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.
Instant Hot Water Supply: Orbek electric tankless water heater 240v can provides max 3.38 GPM of on demand endless hot water and ensure comfortable hot water for 2-3 points of use
Top 12
Best for EcoSmart
Best for Takagi
Best for EcoSmart
Best for FOGATTI
Best for AO Smith
Best for 2 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology, 17 x 17 x 3.5
EcoSmart
ECO24
17.0 x 17.0 x 17.0 Inches
14.25 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 13
Best for Whole House
Best for Takagi
Best for Noritz
Best for Rheem
Best for Stiebel Eltron
Best for EcoSmart
Best for FOGATTI
Best for AO Smith
Best for 2 GPM
Best for 3 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
Electric Tankless Water Heater WINTEMP 27kW 240V, Whole House Hot Water Supply, On Demand Instant Endless Water Heater, with LED Temperature Display, WiFi Control, Up to 6.3 GPM, ETL Certified
WINTEMP
WN27
11.0 x 11.0 x 19.1 inches
12.7 pounds
Ratings for WINTEMP (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| WINTEMP | - | ❌ | ❌ | ❌ |
Features
Important Note: Ensure this tankless water heater meets your installation requirements, 200 Amp Household Service Recommended. The WN27 model is rated at 27KW (240V) with a maximum amperage of 113A. It requires 3 x 40 Amp double-pole (DP) breakers and 3 x 8/2 AWG wiring with ground, with a recommended 250A household power supply. The unit dimensions are 11.1” (W) x 19.1 ” (H) x 4” (D), the water connection is 3/4" NPT, Please consult a qualified electrician before purchasing
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. Its maximum hot water output is 6.5 gallons 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. Provides continuous hot water for showers and everyday household use
Top 14
Best for Inline
Best for Electric
Best for NG
Best for Thermostat
Best for Residential
Best for Rheem
Best for Rheem
Best for AO Smith
Best for 5 GPM
Best for 7 GPM
Best for 9 GPM
Best for 10 GPM
Rheem 6.5kW 240V Point of Use Thermostatic Tankless Electric Water Heater
Rheem
RTEX-06T
10.875 x 10.875 x 5.875 inches
4.0 Pounds
Highly Efficient
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
| Valley Deals AZ | - | ❌ | ❌ | ❌ |
| 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
Ecosmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
EcoSmart
ECO 11
6.5 x 13.5 x 10.0 inches
6.5 Pounds
High
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| AMIII CO | - | ✅ | ✅ | ✅ |
| MAGELLAN DISTRIBUTION CORPORATION | - | ✅ | ✅ | ✅ |
| Phamily Distribution | - | ✅ | ✅ | ✅ |
| Spero Goods | - | ✅ | ✅ | ✅ |
| Hearthshire | 77 | ❌ | ❌ | ❌ |
| The Factory Depot | 281 | ❌ | ❌ | ❌ |
Features
Configured for climates where incoming water temperatures are in the 60 deg
Propane Gas Tankless Water Heater, Indoor Max 4.3 GPM, 100,000 BTU On Demand Instant Hot Water Heater Propane Gas with LED Temperature Control Panel, 1/2" NPT Connector Size, Gray
LiberLive
HKRV-HR2110
14.2 x 14.2 x 22.1 Inches
Ratings for LiberLive (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Woot | 118 | ❌ | ❌ | ❌ |
Features
Powerful On-Demand Heating – This tankless water heater gas delivers 100,000 BTU & 4.3 GPM, supporting 3–4 water points simultaneously (shower + kitchen sink + bar sink + more). Enjoy endless tankless hot water heater performance with no waiting – perfect for daily household use
Precision Temperature Stability – Unlike conventional gas water heater units, our propane water heater eliminates sudden hot/cold spikes. Adjustable range (95°F–149°F) ensures consistent warmth, safe for infants, kids, and elders – no more unexpected cold blasts
Top 17
Best for Whole House
Best for 3 GPM
Best for 4 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Best for 15 GPM
WINTEMP 36kW Tankless Electric Water Heater 240V, Instant On-Demand Endless Hot Water, Up to 8.7 GPM, LED Temperature Display, Whole House Supply, WiFi Control, ETL Certified
WINTEMP
WN36
13.7 x 13.7 x 21.1 Inches
36.05 pounds
Ratings for WINTEMP (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| WINTEMP | - | ❌ | ❌ | ❌ |
Features
Important Note: Please ensure this tankless water heater meets your installation requirements, 300 Amp Household Service Recommended. The WN36 model is rated at 36KW (240V) with a maximum current draw of 150A. It requires 4 x 40 Amp double-pole (DP) breakers and 4 x 8/2 AWG cables with ground. A 300A household power supply is recommended. Unit dimensions: 13.7” (W) x 21.1” (H) x 5.3” (D). Water connection: 3/4" NPT, Please consult a qualified electrician before purchasing
Stable Water Temperature: Automatically adjusts energy consumption based on incoming water temperature and flow rate to ensure maximum efficiency, a consistently stable temperature, and optimal power usage. With a maximum hot water output of 8.7 gallons per minute, it’s ideal for residential showers — no need to wait for preheating, no risk of running out of hot water, and no more temperature fluctuations during your shower. Provides continuous hot water for showers and everyday household use
Top 18
Best for CAMPLUX
Best for Inline
Best for Gas Powered
Best for Battery
Best for Propane Liquid
Best for Outdoor
Best for Propane
Best Gas Water Heaters
Best for 80 Gallon
Best Tankless Water Heaters
Best for FOGATTI
Best for Eccotemp
Best for CAMPLUX
Best for 5 GPM
Best for 7 GPM
Best for 9 GPM
Best for 10 GPM
Best for 15 GPM
Camplux Tankless Water Heater, 1.32 GPM Portable Propane Outdoor Camping Water Heater, 5L, AY132, White
CAMPLUX ENJOY OUTDOOR LIFE
AY132
14.8 x 11.42 x 4.33 Inches
10.0 pounds
Ratings for CAMPLUX ENJOY OUTDOOR LIFE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Camplux | - | ✅ | ✅ | ✅ |
Features
Lightweight, Compact & Portable Design: The 10 pounds lightweight portable water heater's folding handle keeps it out of the way and enables easy setup outside.
Flow Rate & Temperature Specification: The temperature raise is 114.8℉ (46℃) at its highest point and 46.4℉ (8℃) is at its lowest point of 1.32 GPM. Also, 1.32 gallons of hot water can be produced per minute at the flow rate of 1.32 GPM.
Top 19
Best for Gas Powered
Best for Battery
Best for Outdoor
Best for Propane
Best for 30 Gallon
Best for 75 Gallon
Best for 80 Gallon
Best for 100 Gallon
Best for 5 GPM
Best for 9 GPM
Propane Water Heater 4.76 GPM 18L Outdoor Portable Tankless Water Heater 82000 BTU/Hour with Digital Display Battery Ignition 5 Mode Shower Head Instant On Demand Hot Water for RV Camping Cabin
VELPAX
RSQM20M21-US
6.3 x 6.3 x 23.2 inches
Ratings for VELPAX (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon Resale | - | ❌ | ❌ | ❌ |
| DIVACEN | - | ❌ | ❌ | ❌ |
Features
【High Heating Performance】: This propane tankless water heater provides 24KW high heating power (82000 BTU/hr), with a maximum hot water output of 18L/4.76 GPM. On-demand instant hot water without a storage tank. The highly integrated burner and low-stage combustion design deliver higher efficiency and energy saving. Compact, lightweight, and ideal for year-round camping showers, RV travel, and outdoor use.
【Multiple Safety Protection】: Built-in 20-minute overtime protection and overheat protection for safe operation. Advanced combustion technology reduces gas consumption and burning noise. Inlet gas pressure: 2.8KPa; working water pressure: 0.015~0.8MPa (2.2~116 PSI), stable and reliable for outdoor use.
Top 20
Best Water Heaters
Best for CAMPLUX
Best for Inline
Best for Outdoor
Best for Propane
Best Tankless Water Heaters
Best for CAMPLUX
Best for 5 GPM
Best for 9 GPM
Best for 10 GPM
Best for 15 GPM
Camplux 1.32 GPM Portable Water Heater Tankless Water Heater Propane Outdoor Black
CAMPLUX ENJOY OUTDOOR LIFE
AY132BN
11.42 x 4.33 x 14.8 inches
10.0 pounds
Ratings for CAMPLUX ENJOY OUTDOOR LIFE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| CampluxDirect | - | ✅ | ✅ | ✅ |
| Camplux | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Portable, Lightweight Design: This portable water heater weights only 10 pounds and comes with folding handle keeps it out of the way and enables easy setup outside
Simple, Easy Hot Showers: The camplux portable hot water heater is easy to set-up. All you need is the water heater, gas bottle away you go! Adjust your temp is as just as easy. Find your perfect flow with the easy to use temperature dials.Setting up this propane water heater simply takes 10 minutes
Top 21
Best for 40 Gallon
Best for 50 Gallon
Best for Tankless
Best Tankless Water Heaters
Best for Noritz
Best for 7 GPM
Best for 10 GPM
MIZUDO Natural Gas Tankless Water Heater, 199,000 BTU, Indoor Installation, Max 10.3 GPM, WiFi&APP Control, Non Condensing, High Efficiency for Large Families Residential Whole House
MIZUDO
WCIU-HW199A1G-NG-M0
15.9 x 15.9 x 24.8 Inches
55.5 pounds
Ratings for MIZUDO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Mizudo Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
[Professional 199k BTU Tankless Water Heater]: Experience uninterrupted hot water delivery with 10.3 GPM flow capacity, designed to support large households with 5-7 fixtures simultaneously, providing hot water only when needed, making it an economically smart choice
[Smart WiFi Connectivity for Remote Management]: Control and monitor your gas tankless water heater from anywhere using the dedicated mobile application. Adjust temperature settings, create custom schedules, receive maintenance alerts, and track energy usage through your smartphone
WINTEMP 11kW Electric Tankless Water Heater 240V, Endless On-Demand Hot Water Heater, LED Temperature Display, Self-Modulating Energy Saving, Space-Saving Design, Ideal for Bathroom and Kitchen
WINTEMP
YQ-WN11K
9.7 x 9.7 x 14.0 Inches
8.6 pounds
Ratings for WINTEMP (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| GREENTECH APPLIANCE | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Important Note: Ensure this tankless water heater meets your installation requirements. It is rated at 11KW - 240 Volts with a maximum amperage of 46A. It requires 1 x 50 Amp DP breakers and 8# AWG wiring with ground. The unit dimensions are 9.7” (W) x 14 ” (H) x 3.4” (D), the water connection is 1/2" 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. Its maximum hot water output is 2.6 gallons per minute, It is ideal for installation under bathroom faucets and sinks
Top 23
11kW Electric Tankless Water Heater, MIZUDO On-Demand Hot Water Heater, 240Volts,Up to 2.6 GPM, Single-Point of Use Water Heater for Bathroom and Kitchen, ETL Certified
MIZUDO
ET011A4W
3.28 x 3.28 x 12.59 Inches
Ratings for MIZUDO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Mizudo Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
Important Note: Ensure this tankless water heater meets your installation requirements. Mizudo 11W Electric Tankless Water Heater is rated at 11 kW (240V) with a maximum amperage of 50A. It requires 1x 50 Amp DP breaker and 8 AWG wiring with ground. The unit dimensions are 9.56” (W) x 12.59” (H) x 3.28” (D), the water connection is 1/2" NPT. (It is recommended to have a professional electrician perform the installation.)
High‑Efficiency 11kW On-demand Hot Water Heater: max flow rate 2.6 GPM, minimum start-up flow rate is 0.4 GPM,98% heating efficiency. the MIZUDO 11kW Instant hot water heater delivers hot water in just seconds—no preheating required, for small apartment showers
Top 24
Best for Rinnai
Best for Indoor
Best for Propane
Best for High Efficiency
Best Gas Water Heaters
Best for Rinnai
Best for Tankless
Best for Noritz
Best for Rinnai
Best for 9 GPM
NEW Rinnai RX199iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or Outdoor Water Heater, Up to 11.1 GPM, 199,000 BTU
Rinnai
RX199iN
30.11 x 18.5 x 30.11 Inches
55.0 Pounds
High (UEF .98)
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| eFaucets | 9,712 | ❌ | ❌ | ❌ |
| EXPRESS DISTRIBUTION | - | ❌ | ❌ | ❌ |
| Voomi Supply | - | ❌ | ❌ | ❌ |
Features
One Model, Anywhere: This Rinnai tankless water heater is installable indoors or outdoors thanks to our new Versa Vent and powered by either propane or natural gas thanks to a Smart Sense gas control system; RX-OVC vent cap required for outdoor install
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This condensing propane and natural gas tankless water heater from Rinnai is only the size of a small suitcase, but provides up to 11.1 GPM (7 fixtures at once)
Top 25
Electrolux Tankless Water Heater Electric 11kw 240v, Max 2.59 GPM
Electrolux
11-2
3.35 x 3.35 x 8.9 Inches
7.8 pounds
Ratings for Electrolux (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Electrolux Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
Alexa & WiFi Smart Control – Turn your shower into a smart home experience. This smart tankless water heater is Alexa compatible and connects via WiFi to the Electrolux app. Just say, “Alexa, set water temperature to 104°F” or adjust remotely from your phone – no need to run to the breaker panel. Enjoy instant hot water on demand with full voice control, perfect for busy households.
11kW 240V Instant Heating – 2.59 GPM for 1‑2 Points of Use, Designed as a point of use water heater, this 11kW electric tankless unit runs on 240V and delivers up to 2.59 GPM – enough for a shower, bathroom sink, or kitchen faucet simultaneously. It heats water instantly as it flows, providing endless hot water for your daily routine without the bulk of a storage tank.
Westinghouse Tankless Water Heater Gas, 5.1 GPM 120,000 BTU Indoor Natural Gas Heater Whole House, Smart WiFi&App Control, CSA Certified, ±1°F Temperature Stability, Non-Condensing for 2-4 Fixtures
Westinghouse
AMZ-HW120A1G-NG
12.5 x 12.5 x 23.9 Inches
Ratings for Westinghouse (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Westinghouse Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
【Endless Hot Water for Everyday Home Use】Designed for indoor whole-home performance, this natural gas tankless water heater delivers up to 5.1 GPM and 120,000 BTU of on-demand hot water for showers, sinks, dishwashers, and laundry appliances. Comfortably supports 2–4 fixtures simultaneously without running out of hot water.
【Smart WiFi App Control】This gas tankless water heater allows you to adjust water temperature and monitor system operation via smartphone app or LED panel. It clearly shows daily water usage reports for at-a-glance consumption tracking, with real-time temperature visibility and simplified operation to deliver a smarter, more convenient hot water experience.
Top 27
Best for GASLAND
GASLAND Outdoors Propane Tankless Water Heater,1.58GPM 6L Portable Gas Water Heater, Overheating Protection, Easy to Install, Use for RV Cabin Barn Camping Boat, Silver
GASLAND
BE158SN5
5.2 x 5.2 x 17.3 inches
Ratings for GASLAND (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Gasland | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
𝟭.𝟱𝟴𝗚𝗣𝗠/𝟲𝗟 𝗣𝗿𝗼𝗽𝗮𝗻𝗲 𝗪𝗮𝘁𝗲𝗿 𝗛𝗲𝗮𝘁𝗲𝗿 - Maximum power output 41,000BTU/Hr.The temperature raise is 109.4℉ (43℃) at its highest point and 55.4℉ (13℃) is at its lowest point of 1.58 GPM. Also, 1.58 gallons of hot water can be produced per minute at the flow rate of 1.58 GPM. Low water pressure start up, just need 3.6 PSI of water pressure to start.
𝗚𝗼𝗼𝗱 𝗳𝗼𝗿 𝗢𝗳𝗳-𝘁𝗵𝗲-𝗚𝗿𝗶𝗱 - Runs on a standard 20 lb. liquid propane tank and is equipped with an electronic ignition powered by two D-cell batteries. Can be used in a variety of scenarios: while you're camping, RVing, hunting, hanging poolside, washing your pets or horses, cleaning your vehicle, or even in your tiny home, greenhouse, or cabin house.
Top 10 11 GPM Tankless Water Heaters - Verified to Buy (September 2026)
- 1. Tankless Water Heater Electric, 11kW 240Volt On Demand Instant Hot...
- 2. WINTEMP 11kW 240V Tankless Water Heater Electric, On Demand Instant...
- 3. Electric Tankless Water Heater, 11kW 240V on Demand Instant Endless...
- 4. ThermoMate Tankless Water Heater Electric, 11kW 240 Volt On Demand...
- 5. Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater...
- 6. Rheem 18kW 240V Tankless Electric Water Heater
- 7. FOGATTI 11kW Tankless Water Heater Electric, 240 Volt On Demand...
- 8. EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240...
- 9. Electric Tankless Water Heater, 13kW 240V on Demand Instant Endless...
- 10. Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
Top 10 11 GPM Tankless Water Heaters Brands on Amazon
Here is the list of top-rated brands that were evaluated by CherryPicks.
- Kweetle
- WINTEMP
- LiberLive
- thermomate
- Rheem
- FOGATTI
- EcoSmart
- Orbek
- CAMPLUX ENJOY OUTDOOR LIFE
- VELPAX
Related 11 GPM Tankless Water Heaters Guides
For more personalized 11 GPM Tankless Water Heaters guides, Check those pages,
GPM
Top 10 11 GPM 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. Hearthshire : 348,312 Yearly Feedback , Avg. Ratings 4.7
- 2. Woot : 264,925 Yearly Feedback , Avg. Ratings 4.8
- 3. The Factory Depot : 134,802 Yearly Feedback , Avg. Ratings 4.7
- 4. 718 Sold It : 8,956 Yearly Feedback , Avg. Ratings 4.8
- 5. eFaucets : 7,050 Yearly Feedback , Avg. Ratings 4.4
- 6. MAGELLAN DISTRIBUTION CORPORATION : 4,492 Yearly Feedback , Avg. Ratings 4.6
- 7. Spero Goods : 3,465 Yearly Feedback , Avg. Ratings 3.9
- 8. Camplux : 2,734 Yearly Feedback , Avg. Ratings 4.7
- 9. Voomi Supply : 2,260 Yearly Feedback , Avg. Ratings 4.1
- 10. Gasland : 1,801 Yearly Feedback , Avg. Ratings 4.6
| Rank | Name | Yearly Feedbacks | Avg. Ratings |
|---|---|---|---|
| 🥇 | Hearthshire | 348,312 | 4.7 |
| 🥈 | Woot | 264,925 | 4.8 |
| 🥉 | The Factory Depot | 134,802 | 4.7 |
| 4 | 718 Sold It | 8,956 | 4.8 |
| 5 | eFaucets | 7,050 | 4.4 |
| 6 | MAGELLAN DISTRIBUTION CORPORATION | 4,492 | 4.6 |
| 7 | Spero Goods | 3,465 | 3.9 |
| 8 | Camplux | 2,734 | 4.7 |
| 9 | Voomi Supply | 2,260 | 4.1 |
| 10 | Gasland | 1,801 | 4.6 |
[Get] 11 GPM Tankless Water Heaters Deals (✅Exclusively for Prime)
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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 11 GPM Tankless Water Heaters to buy for new September 2026?
CherryPicks’s Methodology for Evaluating 11 GPM 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 11 GPM Tankless Water Heaters reviews based on our selection criteria. It helped us shortlist the top qualified and rated 11 GPM Tankless Water Heaters for Rough Plumbing, We found that most customers choose 11 GPM Tankless Water Heaters with an average price of $435.48, and the top brands are Westinghouse, Electrolux, EcoSmart, CAMPLUX ENJOY OUTDOOR LIFE, Rheem, GASLAND, thermomate, Rinnai, FOGATTI And Kweetle.
Then our expert-level editors reviewed all those quality items and selected the top 27 11 GPM Tankless Water Heaters for you, We have researched hundreds of sellers and picked the top sellers for Rough Plumbing, including Amazon Resale, Hearthshire, Woot, The Factory Depot, 718 Sold It, eFaucets, MAGELLAN DISTRIBUTION CORPORATION, Spero Goods, Camplux, Voomi Supply, Gasland And Mizudo Home Comfort Direct. The Tankless Water Heater Electric, 11kW 240Volt On... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 9 consumers with an average rating of 4.4.
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 11 GPM 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.