Top 28 11 GPM Tankless Water Heaters on Amazon (Verified You can Buy)
Top 1
11kW Tankless Water Heater Electric, MIZUDO 240 Volt Instant Hot Water Heater, Suitable for Single-Point Use in a Small Apartment, LED Display, ETL Certified, Ideal for Showering
MIZUDO
11kW
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
Note: MIZUDO 11kw 240V tankless water heater electric requires a 50 AMP two-pole breaker, 1 set of 8 AWG wires and 1/2" NPT water connections. With a compact size of 14.2"H x 9.5"L x 2.8"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.
11kW Model Flow Rate: up to 2.6 GPM. The minimum start-up flow rate is 0.5 GPM，it means the water heater will only work when the inflow rate is above 0.5 GPM. If the temperature of the groundwater in your area reaches 77 ℉, the outlet water flow rate can reach up to 2.6 GPM. Suitable for Single-Point Use in a Small Apartment, ideal for Showering.
Top 2
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
YONOOQ
S313357-11kW
10.87 x 10.87 x 7.76 Inches
5.5 Pounds
Ratings for YONOOQ (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Yundingxing | - | ❌ | ❌ | ❌ |
Features
Instant & Endless Hot Water: Enjoy a continuous supply of hot water with 24-hour standby. Get hot water in as little as 3 seconds—no more waiting for your shower. Supports multi-point water supply for kitchen, bathroom, and more. Adjustable temperature range: 86–131°F.
Safe & Reliable: CSA certified for peace of mind. Built with dry-burn protection, overheat protection, and water leakage protection. An advanced intelligent chip and temperature sensor keep output water temperature stable for a steady, comfortable supply of hot water.
Top 3
Westinghouse Tankless Water Heater Electric 11kW 240V, Max 2.6 GPM with LED display, On Demand Instant Hot Water Heater, WIFI & Self Modulating High Efficiency, Copper Heating, ETL Certified
Westinghouse
ET011CA0G
8.9 x 8.9 x 3.58 inches
7.8 Pounds
Ratings for Westinghouse (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Westinghouse Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
Specs at a Glance: 11kW / 240V / 46A / 0.5-2.6 GPM / 1/2" NPT connections; Temperature Range 86-140℉(30-60℃); Dimensions: 12.8"×3.58"×8.9" ; Amperage Draw: 46 A — professional installation recommended; Special Features: energy efficient
Whole House Instant Hot Water: This 11kW 240V electric tankless water heater delivers up to 2.6 GPM, supplying 1-2 fixtures simultaneously with no temperature drop — ideal for busy households that need reliable hot water on demand, every single time
Top 4
Best Water Heaters
Best for Compact
Best for Waterproof
Best for 2 GPM
Best for 3 GPM
Best for 5 GPM
Best for 9 GPM
Westinghouse 11kW Tankless Water Heater Electric 240V, Wifi, ETL, Gray
Westinghouse
WET011A0G
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 requires a dedicated 60A double-pole breaker and 8 AWG wire at 240V for stable, safe operation. With 1/2" NPT connections and a compact wall-mountable design 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 electric.
【3-Second Instant Heating & On Demand Hot Water】This 11kW tankless water heater 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 2.6 GPM—ideal for a single water point, perfect for a shower. This on demand hot water heater brings instant hot water to your daily routine. That's the reliable performance you expect from a Westinghouse electric tankless water heater 240V.
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
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 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 EcoSmart
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 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 7
Best for Tanked
Best for Compact
Best for 2 GPM
Best for 8 GPM
Best for 10 GPM
Best for 14 GPM
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 8
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
Top 9
Best for Rheem
Best for Indoor
Best for High Efficiency
Best for Rheem
Best for Rheem
Best for 9 GPM
Rheem RRTGH95DVLP3701178 Rheem RTGH Series 9.5 GPM 199,900 BTU 120 Volt Residential Indoor Liquid Propane Tankless Water Heater Stainless Steel
Rheem
RTGH-95DVLP-3
9.8 x 17.7 x 23.7 Inches
59.88 pounds
0.82
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Features
Flow rate of 0.4 - 9.5 GPM
Available temperature settings range from 100 to 140F (default setting of 120F)
Top 10
Best for Rheem
Best for High Efficiency
Best for Rheem
Best for 50 Gallon
Best for 60 Gallon
Best for Rheem
Best for 3 GPM
Rheem RTG-95DVLN-3 High Efficiency Non-Condensing Indoor Tankless Natural Gas Water Heater 9.5 GPM, 199,900 BTUs
Rheem
RTG-95DVLN-3
10.27 x 13.5 x 24.2 inches
46.5 pounds
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Buildcom | 965 | ❌ | ❌ | ❌ |
| Voomi Supply | - | ❌ | ❌ | ❌ |
| eFaucets | 9,547 | ❌ | ❌ | ❌ |
| Amazon.com | - | ❌ | ❌ | ❌ |
Features
High-efficiency tankless gas water heater delivers up to 9.5 GPM, perfect for 2–3 bathroom homes with multiple hot water needs like showers and laundry.
Powered by natural gas with 199,900 BTUs, this durable tankless unit ensures fast, reliable hot water—even during peak household demand.
Top 11
Best for Gas Powered
Best for Whole House
Best for High Efficiency
Best for 50 Gallon
Best for 75 Gallon
Best for 7 GPM
Best for 9 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
Top 12
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.
Top 13
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!
Top 14
Best for Rinnai
Rinnai CXP199iN High Efficiency Plus Natural Gas Interior Tankless Water Heater, 11 GPM
Rinnai
CXP199iN
30.11 x 18.5 x 30.11 inches
63.0 pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| eFaucets | 9,547 | ❌ | ❌ | ❌ |
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
Super High Efficiency for Lower Energy Costs: Boasting an impressive thermal efficiency rating of 97%, this tankless water heater optimizes energy usage, helping to significantly reduce operational costs
Top 15
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
Top 16
Best Water Heaters
Best for Rheem
Best for Inline
Best for Tanked
Best for Electric
Best for Under Sink
Best for 120 Volt
Best for Rheem
Best for Takagi
Best for Rheem
Best for FOGATTI
Best for Eccotemp
Best for AO Smith
Best for 2 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Best for 12 GPM
Best for 14 GPM
Best for 15 GPM
Rheem 3.5kW 120V Point of Use Thermostatic Tankless Electric Water Heater
Rheem
RTEX-04T
3.0 x 6.0 x 6.0 inches
4.0 pounds
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Eagle Point [S/N Recorded] | - | ❌ | ❌ | ❌ |
| Amazon.com | - | ❌ | ❌ | ❌ |
| Valley Deals AZ | - | ❌ | ❌ | ❌ |
| Profitwise Brands | - | ❌ | ❌ | ❌ |
| eFaucets | 9,547 | ❌ | ❌ | ❌ |
| Columbiatradestock (S/N Info Recorded) | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| MTL Retailers | - | ❌ | ❌ | ❌ |
Features
ELECTRICAL REQUIREMENTS: 1 x 30 AMP Double Pole Breaker Required. Product installation hard wired to 120 volts requiring a 30-amp breaker.
SAVES SPACE: Ideal for low flow point-of-use applications, such as in a bathroom, office breakroom, wet bar, or garage. The compact size of the water heater is up to 98% smaller than a standard electric water heater.
Top 17
Best for Rheem
Best for Inline
Best for Tanked
Best for Electric
Best for Whole House
Best for Rheem
Best Tankless Water Heaters
Best for Rheem
Best for Rinnai
Best for AO Smith
Best for 2 GPM
Best for 3 GPM
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 12 GPM
Best for 14 GPM
Best for 15 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 | - | ❌ | ❌ | ❌ |
| Sunny ING | - | ❌ | ❌ | ❌ |
| Nantek | - | ❌ | ❌ | ❌ |
| Columbiatradestock (S/N Info Recorded) | - | ❌ | ❌ | ❌ |
| Trena's Liquidation LLC | - | ❌ | ❌ | ❌ |
| MTL Retailers | - | ❌ | ❌ | ❌ |
Features
ON/OFF Dial Control with adjustable digital temperature display
Self-modulating power control
Top 18
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 EcoSmart
Best for FOGATTI
Best for Eccotemp
Best for AO Smith
Best for 8 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
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 20
Best for Rheem
Rheem IKONIC RECTGH-SR11iN Professional Grade Super High Efficiency Condensing Tankless Natural Gas Water Heater with Recirculation, 11.2 GPM
Rheem
RECTGH-SR11iN
13.69 x 17.31 x 28.56 inches
86.0 Pounds
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Features
Continuous Hot Water & Comfort When Needed – The Rheem IKONIC RECTGH-SR11iN Super High Efficiency condensing tankless gas water heater with recirculation provides enough immediate hot water for your entire house, even when using multiple applications such as a shower and dishwasher
Save on Energy Costs – Rheem’s customizable built-in recirculation saves an average 11,000 gallons of water per year by eliminating the wait for hot water to your shower or sink
Top 21
Best for Rheem
Rheem IKONIC RECTGH-S11iP Professional Grade Super High Efficiency Condensing Tankless Liquid Propane Water Heater, 11.2 GPM
Rheem
RECTGH-S11iP
13.69 x 17.31 x 28.56 inches
77.6 pounds
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
Features
Continuous Hot Water & Comfort When Needed – The Rheem IKONIC RECTGH-S11iP Super High Efficiency condensing tankless liquid propane water heater provides enough immediate hot water for your entire house, even when using multiple applications such as a shower and dishwasher
Save on Energy Costs – Heat water only when you need it
Top 22
Best Water Heaters
Best for CAMPLUX
Best for Gas Powered
Best for LP
Best for Propane Liquid
Best for Outdoor
Best for Propane
Best Gas Water Heaters
Best for 80 Gallon
Best for Tankless
Best Tankless Water Heaters
Best for GASLAND
Best for Eccotemp
Best for CAMPLUX
Best for 2 GPM
Best for 3 GPM
Best for 5 GPM
Best for 6 GPM
Best for 9 GPM
Best for 10 GPM
Best for 12 GPM
Best for 14 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 23
Best Gas Water Heaters
Best for 30 Gallon
Best for 40 Gallon
Best for 50 Gallon
Best for 80 Gallon
Best for Tankless
Best for Eccotemp
Best for 6 GPM
Best for 7 GPM
APUS Natural Gas Tankless Water Heater 140,000 BTU Indoor Installation Up to 6.8 GPM, Zero Cold Water for Technology Instant Hot Water on Demand, Smart Wi-Fi App Control
APUS
AP-AWH-Q20NG
7.09 x 7.09 x 21.26 inches
26.9 Pounds
High
Ratings for APUS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| APUS WATER EQUIPMENT | - | ❌ | ❌ | ❌ |
Features
Instant Hot Water: This upgraded smart natural gas tankless water heater delivers consistent performance with its 140,000 BTU burner and durable oxygen-free copper heat exchanger. With the latest intelligent heating technology, it provides hot water in just 1 second, giving you instant comfort without the wait.
Zero Cold Water Tech - Instant Hot Water：Our tankless water heater gas system features APUS exclusive single-circulation technology that eliminates cold water wait time. This on demand water heater delivers instant hot water while its 24/7 ECO smart cycle saves 40% more energy than conventional hot water heaters.
Rinnai CX199iN Condensing Smart Sense Commercial Natural Gas or Propane Tankless Water Heater, 199,000 BTU, 11.1 GPM
Rinnai
CX199iN
30.11 x 18.5 x 30.11 Inches
59.9657 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| eFaucets | 9,547 | ❌ | ❌ | ❌ |
| The Portland Group | - | ❌ | ❌ | ❌ |
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
Super High Efficiency for Lower Energy Costs: Boasting an impressive thermal efficiency rating of 97%, this tankless water heater optimizes energy usage, helping to significantly reduce operational costs
Top 25
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 EcoSmart
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 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 26
Best for Inline
Best for Tanked
Best for Electric
Best for Boiler
Best for 40 Gallon
Best for 80 Gallon
Best Tankless Water Heaters
Best for Noritz
Best for Rinnai
Best for AO Smith
Best for 2 GPM
Best for 3 GPM
Best for 5 GPM
Best for 6 GPM
Best for 7 GPM
Best for 9 GPM
Best for 10 GPM
Best for 12 GPM
Best for 14 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 27
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 EcoSmart
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
Best for 2 GPM
Best for 9 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 28
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 EcoSmart
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 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 10 11 GPM Tankless Water Heaters - Verified to Buy (October 2026)
- 1. 11kW Tankless Water Heater Electric, MIZUDO 240 Volt Instant Hot...
- 2. Tankless Water Heater Electric, 11kW 240Volt On Demand Instant Hot...
- 3. Westinghouse Tankless Water Heater Electric 11kW 240V, Max 2.6 GPM...
- 4. Westinghouse 11kW Tankless Water Heater Electric 240V, Wifi, ETL, Gray
- 5. Rheem Prestige Condensing Tankless Gas Indoor Natural Gas Water Heater...
- 6. Rheem 11kW 240V Tankless Electric Water Heater
- 7. WINTEMP 11kW Electric Tankless Water Heater 240V, Endless On-Demand Hot...
- 8. WINTEMP 11kW 240V Tankless Water Heater Electric, On Demand Instant...
- 9. Rheem RRTGH95DVLP3701178 Rheem RTGH Series 9.5 GPM 199,900 BTU 120...
- 10. Rheem RTG-95DVLN-3 High Efficiency Non-Condensing Indoor Tankless Natural Gas Water...
Top 10 11 GPM Tankless Water Heaters Brands on Amazon
Here is the list of top-rated brands that were evaluated by CherryPicks.
- MIZUDO
- YONOOQ
- Westinghouse
- Rheem
- WINTEMP
- Electrolux
- LiberLive
- Rinnai
- thermomate
- EcoSmart
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. MaxWarehouse : 147,519 Yearly Feedback , Avg. Ratings 4.7
- 2. Buildcom : 51,684 Yearly Feedback , Avg. Ratings 4.5
- 3. eFaucets : 7,127 Yearly Feedback , Avg. Ratings 4.4
- 4. Camplux : 2,742 Yearly Feedback , Avg. Ratings 4.7
- 5. Voomi Supply : 2,310 Yearly Feedback , Avg. Ratings 4.1
- 6. Plumber's Paradise : 2,222 Yearly Feedback , Avg. Ratings 4.8
- 7. The Portland Group : 973 Yearly Feedback , Avg. Ratings 4.9
- 8. MTL Retailers : 499 Yearly Feedback , Avg. Ratings 4.1
- 9. Mizudo Home Comfort Direct : 404 Yearly Feedback , Avg. Ratings 4.7
- 10. Amazon.com : 386 Yearly Feedback , Avg. Ratings 4.7
| Rank | Name | Yearly Feedbacks | Avg. Ratings |
|---|---|---|---|
| 🥇 | MaxWarehouse | 147,519 | 4.7 |
| 🥈 | Buildcom | 51,684 | 4.5 |
| 🥉 | eFaucets | 7,127 | 4.4 |
| 4 | Camplux | 2,742 | 4.7 |
| 5 | Voomi Supply | 2,310 | 4.1 |
| 6 | Plumber's Paradise | 2,222 | 4.8 |
| 7 | The Portland Group | 973 | 4.9 |
| 8 | MTL Retailers | 499 | 4.1 |
| 9 | Mizudo Home Comfort Direct | 404 | 4.7 |
| 10 | Amazon.com | 386 | 4.7 |
[Get] 11 GPM 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.
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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 11 GPM Tankless Water Heaters to buy for new October 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 $533.59, and the top brands are Westinghouse, CAMPLUX ENJOY OUTDOOR LIFE, Electrolux, EcoSmart, Rheem, thermomate And Rinnai.
Then our expert-level editors reviewed all those quality items and selected the top 28 11 GPM Tankless Water Heaters for you, We have researched hundreds of sellers and picked the top sellers for Rough Plumbing, including Amazon Resale, MaxWarehouse, Buildcom, eFaucets, Camplux, Voomi Supply, Plumber's Paradise, The Portland Group, MTL Retailers, Mizudo Home Comfort Direct, Amazon.com And ThermoMate Official. The 11kW Tankless Water Heater Electric, MIZUDO 240... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 143 consumers with an average rating of 4.1.
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.