Top 27 2 GPM Tankless Water Heaters on Amazon (Verified You can Buy)
Tankless Water Heater Electric, ThermoMate 8kW at 240 Volt, On Demand Instant Hot Water Heater for Point of Use, Self-Modulating Save Energy, Save Space, 1.56GPM at 35°F Rise
thermomate
ET080
8.58 x 8.58 x 12.2 inches
9.9 pounds
Ratings for thermomate (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| ThermoMate Official | - | ❌ | ❌ | ❌ |
Features
[Instant Endless Hot Water] - Provide instant hot water wherever and whenever you need it. 24 hours standby. 8kW powerful heating support up to 2 faucets and large 1.56GPM at 35°F temperature rise. Max temperture up to 131°F. Requires Double Pole 40Amp 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 2
ORBEK Propane Gas Tankless Water Heater -Max 4.3 GPM 100,000 BTU Indoor Installation - CSA Certified On-Demand Instant Hot Water Heater 3/4" NPT Connector Size
Orbek
HW100
13.0 x 13.0 x 20.5 inches
High
Ratings for Orbek (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Westinghouse Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
【Endless On-Demand Hot Water】The Orbek tankless water heater propane indoor delivers 100,000 BTU capacity with 4.3 GPM high flow rate, featuring innovative 0.53 GPM low-flow start technologyonly. It can provide a continuous supply of hot water to 2-3 outlets at the same time, making it suitable as a whole-house water heater or a practical gift for friends and family
【Efficient & Energy-Saving】The highly efficient oxygen-free copper heat exchanger heats water rapidly, while a built-in chip intelligently adjusts the water temperature 20,000 times per second, keeping fluctuations within 1°F to provide a stable and comfortable water flow. It also keeps stable combustion even at low flow rates, achieving efficient energy utilization
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 4
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 3 GPM
Best for 5 GPM
Best for 8 GPM
Best for 11 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 5
Best for Inline
Best for Electric
Best for Digital
Best for Indoor
Best for Whole House
Best for 20 Gallon
Best for 100 Gallon
Best for Takagi
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 3 GPM
18kW Tankless Water Heater Electric, NOVIEEX 240V 3s Instant Hot Water Heater, Flow Rate Max 4.9 GPM, Supply for 2-3 Points, Indoor Installation, Ideal for Apartment, Garage, Salon, Bathroom, Kitchen
NOVIEEX
DS-18
11.14 x 11.14 x 15.86 inches
Ratings for NOVIEEX (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| NOVIEEX Global | - | ❌ | ❌ | ❌ |
| Woot | 118 | ❌ | ❌ | ❌ |
Features
【MEDIUM HOME SOLUTION】 The NOVIEEX 18kW electric tankless water heater is specifically engineered for small-to-medium-sized homes, condos, and apartments with 2-3 simultaneous water needs. Its sleek, ultra-thin wall-mount profile (11.14" x 15.86" x 3.18") frees up 80% more space compared to obsolete, bulky storage tanks, maximizing spatial efficiency in your basement, utility closet, or garage.
【HIGH CAPACITY FLOW】 It delivers a powerful water flow rate of up to 4.9 Gallons Per Minute (GPM). This high capacity easily accommodates multiple running fixtures at once, allowing family members to run a shower, wash dishes in the kitchen sink, and operate the laundry machine concurrently without any drop in temperature or water pressure.
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 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
Best for 11 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
Top 7
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 4 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Best for 11 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 8
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 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
Best for 11 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
18kW Tankless Water Heater Electric 240V WINTEMP, On Demand Instant Hot Water Heater, Up to 4.3 GPM, with LED Temperature Display, Whole House Hot Water Supply, WiFi Control, ETL Certified
WINTEMP
WN18
19.1 x 11.1 x 4.0 inches
12.0 pounds
High Efficiency
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, 150 Amp Household Service Recommended. The WN18 model is rated at 18KW (240V) with a maximum amperage of 75A. It requires 2 x 40 Amp DP breakers and 2 x 8/2 AWG wiring with ground. 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 4.3 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 10
Best for Rheem
Best for Electric
Best for NG
Best for Compact
Best for Under Sink
Best for 120 Volt
Best for Boiler
Best for Takagi
Best for Noritz
Best for Rheem
Best for EcoSmart
Best for FOGATTI
Best for Eccotemp
Best for AO Smith
Best for 4 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 | 9,630 | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Columbiatradestock (S/N Info Recorded) | - | ❌ | ❌ | ❌ |
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 11
Best Water Heaters
Best for Inline
Best for Electric
Best for NG
Best for Compact
Best for Digital
Best for Outdoor
Best for Under Sink
Best for 120 Volt
Best for 60 Gallon
Best for 100 Gallon
Best Tankless Water Heaters
Best for Takagi
Best for Noritz
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 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 | - | ❌ | ❌ | ❌ |
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.
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 13
Best for CAMPLUX
Best for Battery
Best for Outdoor
Best for CAMPLUX
Best for 7 GPM
Best for 9 GPM
Camplux 2.64 GPM Tankless , Outdoor Portable Gas Water Heater with Overheating Protection, Instant Propane Hot Water Heater for RV, Camping, Cabins, Barns, White
CAMPLUX ENJOY OUTDOOR LIFE
BD264N
13.0 x 13.0 x 21.7 inches
18.0 pounds
Ratings for CAMPLUX ENJOY OUTDOOR LIFE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Camplux | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
𝐂𝐨𝐦𝐩𝐚𝐜𝐭, 𝐋𝐢𝐠𝐡𝐭 𝐖𝐞𝐢𝐠𝐡𝐭 𝐏𝐨𝐫𝐭𝐚𝐛𝐥𝐞 𝐃𝐞𝐬𝐢𝐠𝐧 - 12.8 (L)*6.1(W)*21.65(H) inches, weight-18 lbs. Compact and portable design perfect for barns, cabins, outdoor instant hot shower and road trips
𝐄𝐚𝐬𝐲 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 & 𝐔𝐬𝐞 - Simply connect the inlet and outlet pipes and gas regulator that come with this portable water heater, insert 2 D-cell batteries, then you are ready to use. Low water pressure start of 3.6 PSI allows you to enjoy 2.64 gallons of water in just a few minutes
Top 14
Best for EcoSmart
Best for Takagi
Best for EcoSmart
Best for FOGATTI
Best for AO Smith
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Best for 11 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
APUS 14kW Tankless Water Heater Electric, 240V Instant On Demand Hot Water Heater, Up to 3.3 GPM with LED Display, Space-Saving and Energy-Saving Whole House Water Heater Design
APUS
AP-ADSK140-H18
11.42 x 11.42 x 13.7 inches
12.79 pounds
99%
Ratings for APUS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| APUS WATER EQUIPMENT | - | ❌ | ❌ | ❌ |
Features
Enjoy continuous hot water whenever you need it. The 14kW tankless water heater electric delivers up to 3.3 GPM for 1–2 uses at once, such as showers, sinks, or laundry. No preheating, no waiting, and no temperature drops
This electric water heater ultra-slim wall-mounted heater (13.7" × 11.42" × 3.54") saves up to 90% more space compared to traditional tanks, freeing up valuable space in your home. With 3/4" NPT connections and 240 V compatibility（requires 1×60 A breakers, 1 set of 6AWG cable), installation is easy and flexible—ideal for whole-house or point-of-use setups in bathrooms, kitchens, or laundry rooms.
Top 16
Best for Inline
Best for Whole House
Best for 30 Gallon
Best for Noritz
Best for 3 GPM
Best for 4 GPM
Best for 5 GPM
Best for 7 GPM
Best for 15 GPM
27kW Tankless Water Heater Electric, APUS 240V On Demand Instant Hot Water with Memory Function & LED Display, Energy-Saving Whole Home Water Heating System, Up to 6.5 GPM and Space Saving Design,Gray
APUS
AP- ADSK-270G13
11.42 x 11.42 x 17.72 Inches
18.96 pounds
99%
Ratings for APUS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| APUS WATER EQUIPMENT | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Endless Instant Hot Water On Demand: Experience continuous electric tankless water heater performance with our powerful 27kW tankless water heater, delivering on-demand hot water at up to 6.5 GPM—ideal for 3-4 simultaneous uses (showers, sinks, appliances). The advanced cast aluminum heating element ensures rapid, efficient heating in this tankless hot water heater electric, with no preheating, no waiting, and no cold interruptions.
Smart Control with Memory Function: Precisely set your temperature (86°F-140°F) via the LED display on this electric tankless water heater 240V, with 1°F adjustments for ultimate comfort. The memory function saves settings after power cycles, while self-modulating tech adjusts energy use for efficiency—perfect for smart tankless water heater operation.
Electrolux 14kW Tankless Water Heater Electric 240V - Smart WiFi & Alexa, On Demand Hot Water Heater Electric, Max 3.4 GPM, With Scale Inhibitor, Space-Saving Instant Hot Water Heater for Shower
Electrolux
14kW
8.9 x 8.9 x 12.8 inches
7.8 pounds
Ratings for Electrolux (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Electrolux Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
[3s Instant Hot Water, No Waiting] - This on demand hot water heater electric delivers endless hot water in just 3 seconds, perfect for showers, sinks, and more. As an efficient tankless water heater electric, This 14kw tankless water heater electric is designed for 1-2 fixtures with a maximum flow rate of 3.4 GPM, giving you a comfortable instant hot water experience every day.
[Smart WiFi & Alexa Voice Control] - As an advanced electric tankless water heater 240v, it comes with built‑in WiFi for remote temperature adjustment (80°F – 140°F) via a smartphone app, and is compatible with Alexa voice control. Whether you're across the room or in another part of the house, simply speak or tap to fine‑tune the temperature. This tankless electric water heater makes smart home water management easier than ever, and represents the innovation you expect from an Electrolux electric tankless water heater.
Top 18
Best for 4 GPM
Orbek 120,000 BTU Tankless Water Heater Natural Gas,Indoor/Outdoor
Orbek
HW120A1W-NG
14.57 x 14.57 x 22.83 inches
25.57 pounds
Ratings for Orbek (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Westinghouse Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
✔️【Endless On-Demand Hot Water】The Orbek tankless water heater gas indoor delivers 120,000 BTU heating capacity with 5.1 GPM high flow rate, featuring innovative 0.53 GPM low-flow start technology. It can provide a continuous supply of hot water to 2-4 outlets at the same time, making it suitable as a whole-house water heater or a practical gift for friends and family
✔️【Smart WiFi, App & Voice Control】: Connect your tankless gas water heater to WiFi and take full control from the Orbek app – or simply use your voice with Alexa. No more manual adjustments. Whether you're at home or away, you can easily set your ideal water temperature, monitor energy usage in real time, and receive instant maintenance alerts directly to your phone.
GASLAND Tankless Water Heater Propane 10L 2.64GPM Outdoor Propane Shower for Camping & Off Grid, 68,000BTU, Digital Display
GASLAND
BE158N5
13.0 x 13.0 x 21.7 Inches
22.0 pounds
Ratings for GASLAND (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Gasland | - | ❌ | ❌ | ❌ |
Features
𝟮.𝟲𝟰𝗚𝗣𝗠/𝟭𝟬𝗟 𝗣𝗿𝗼𝗽𝗮𝗻𝗲 𝗪𝗮𝘁𝗲𝗿 𝗛𝗲𝗮𝘁𝗲𝗿 - Maximum power output 68,000BTU/Hr.The temperature raise is 109.4℉ (43℃) at its highest point and 55.4℉ (13℃) is at its lowest point of 2.64 GPM. Also, 2.64 gallons of hot water can be produced per minute at the flow rate of 2.64 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 20
Best for Gas Powered
Best for Indoor
Best for Whole House
Best for Residential
Best Gas Water Heaters
Best for 30 Gallon
Best for 40 Gallon
Best for 50 Gallon
Best for 60 Gallon
Best for 75 Gallon
Best for 80 Gallon
Best for Tankless
Best for Takagi
Best for 5 GPM
ThermoMate CZ422NG Natural Gas Tankless Water Heater, Up to 5 GPM 113,000 BTU, High Efficiency Instant On-Demand Hot Water for Whole House Use, Indoor Residential Water Heater with Multi-Point Heating
thermomate
CZ422NG
13.77 x 13.77 x 21.65 inches
22.0 pounds
Ratings for thermomate (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| ThermoMate Official | - | ❌ | ❌ | ❌ |
Features
[Max 5 GPM & 113,000 BTU] - The ThermoMate instant hot water heater can supply two showers simultaneously, each delivering 105°F water at a flow rate of 2 GPM, based on an inlet water temperature of 65°F. No waiting time, no cold water shocks, perfect for busy households. Adopting advanced water flow sensor, the built-in chip can adjust the heating power 20,000 times per second, ensuring that the hot water within ±1℉ fluctuations for a comfortable shower experience.
[Safety & Reliable] - This gas tankless water heater integrates 8 protections: boil-dry, freeze, flame-out, overheating, over-temperature, pipe blockage, high-temperature lock, and excessive air pressure. Equipped with 4 ceramic heating cores, it auto-activates frost protection when temperatures hit 41°F (5℃). The energy-smart system uses minimal electricity to generate gentle warmth, preventing pipe ice buildup without high energy costs.
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.
Westinghouse Tankless Water Heater Propane Outdoor, 5.1 GPM 120,000BTU, CSA
Westinghouse
AMZ-HS120A1G-LP
15.5 x 15.5 x 23.9 Inches
Ratings for Westinghouse (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Westinghouse Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
Whole-House Unlimited Instant Hot Water: Engineered for outdoor wall mounting, this propane water heater delivers up to 5.1 GPM with 120,000 BTU with ±1°F stability and continuous flow. Supports 2–4 fixtures simultaneously for showers, kitchen sinks, dishwashers, and laundry. Ideal for 2–4 person families, tiny B&Bs, restaurant back kitchens, beauty salons, and small laundries. Ultra-low 0.53 GPM activation works with 15 PSI minimum pressure, making it suitable for older plumbing systems as well.
Precise ±1°F Temperature Stability: Intelligent self-modulating water-gas linkage technology on this propane tankless water heater matches gas input with water flow in real time, maintaining outlet temperature within ±1°F throughout operation to avoid sudden hot-cold fluctuations during showers. Comes standard with a wired digital controller for convenient temperature adjustment from multiple points around the house, with an adjustable range of 95°F–158°F for precise on-demand heating.
CAMPLUX Climatech 3 Tankless Water Heater Gas 4.22 GPM, 102,000 BTU Propane Tankless Water Heaters, High Efficiency Instant Hot Water with Multi-Points Use for Whole House, Indoor, CX422, White
CAMPLUX ENJOY OUTDOOR LIFE
CX422WLP
6.8 x 6.8 x 21.3 Inches
21.1 pounds
Ratings for CAMPLUX ENJOY OUTDOOR LIFE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Camplux | - | ❌ | ❌ | ❌ |
| DC Home Supply | - | ❌ | ❌ | ❌ |
Features
【4.22 GPM Gas Water Heater】It is ideal for compact houses, mobile homes, and apartments. These gas tankless water heaters produce 4.22 GPM of endless hot water on demand for 2-3 water points
【Temperature Control】The CAMPLUX indoor tankless water heater has sophisticated water flow sensors and a smart chip with 1,000s calculation, which ensures consistent hot waterwith variations of only ±1℉, making bathing enjoyable
APUS Tankless Water Heater Natural Gas, Up to 3.6 GPM, Indoor Tankless Water Heater, 80,000 BTU on Demand Instant Hot Water Heaters with Smart Digital Display,Space Gray
APUS
AP-AWH-Q10NG
19.29 x 19.29 x 27.59 Inches
Ratings for APUS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| APUS WATER EQUIPMENT | - | ❌ | ❌ | ❌ |
Features
Powerful & High-Capacity: This high-performance gas tankless water heater delivers 80,000 BTU heating capacity with 3.6 GPM high flow rate, featuring innovative 0.53 GPM low-flow start technology. As a versatile natural gas tankless water heater, it meets simultaneous hot water demands for 2 showers plus 1 sink while maintaining stable temperatures even during peak usage.
Precise & Steady: With high-precision sensors and smart CPU technology, this tankless gas water heater maintains water temperature within ±1°F of your desired setting (adjustable from 95°F-140°F). No more sudden hot/cold shocks—just perfectly steady water for showers, washing, and more, even with multiple faucets running. Enjoy worry-free comfort every time!
Top 25
Best for Gas Powered
Best for Digital
Best for Outdoor
Best for Propane
Best for 75 Gallon
Best for 80 Gallon
Best for 8 GPM
TOPWISH Portable Propane Water Heater Tankless, 8L 2.11GPM Instant Gas Hot Water Heater 54,500 BTU with Digital Display Handle Overheating Protection for Outdoor Camping RV Cabin Shower
TOPWISH
XBUS-AWH-001-W-8L-new
12.0 x 12.0 x 20.0 inches
8.5804 Pounds
Ratings for TOPWISH (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| XiBei Household | - | ❌ | ❌ | ❌ |
Features
【Designed to Meet Your Expectations】 Topwish propane water heater tankless is designed with your needs in mind. Weighing just 14 lbs and delivering a powerful 2.11 GPM water flow, Topwish portable water heater offers fast heating in just 5 seconds, making it ideal for camping, RVs, and outdoor adventures. Enjoy hassle-free hot water on the go!
【Core Performance Features】With 54,500 BTU heating power and a wide water pressure range of 20–120 PSI, Topwish propane water heater tankless ensures consistent performance and reliability. Whether you’re using Topwish portable water heater in a remote cabin, during outdoor activities, or in your RV, it’s built to deliver the hot water you need.
MIZUDO Tankless Water Heater Propane, Indoor or Outdoor Convertible Installation, Max 5.1 GPM 120,000 BTU, WiFi&APP Control CSA Certified for Large Families Whole House, GEN 3
MIZUDO
FDG-CS120AW-LP
14.56 x 14.56 x 22.83 Inches
Ratings for MIZUDO (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Mizudo Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
[Flexible Indoor&Outdoor Installation Solution]: Mizudo innovative propane tankless water heater offers versatile installation options to meet various home configurations. Convert from indoor to outdoor use with accessory kits (Purchase Required), providing homeowners unprecedented flexibility for space utilization
[Smart WiFi and App Control]: Manage your tankless water heater propane remotely through the dedicated mobile application. Adjust temperature settings, monitor energy usage, and receive maintenance notifications from anywhere
Top 27
Best for 11 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 2 GPM Tankless Water Heaters - Verified to Buy (September 2026)
- 1. Tankless Water Heater Electric, ThermoMate 8kW at 240 Volt, On...
- 2. ORBEK Propane Gas Tankless Water Heater -Max 4.3 GPM 100,000...
- 3. Electric Tankless Water Heater, 11kW 240V on Demand Instant Endless...
- 4. 14kW Tankless Water Heater Electric, ORBEK On Demand Instant Hot...
- 5. 18kW Tankless Water Heater Electric, NOVIEEX 240V 3s Instant Hot...
- 6. Rheem 18kW 240V Tankless Electric Water Heater
- 7. Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
- 8. Electric Tankless Water Heater WINTEMP 27kW 240V, Whole House Hot...
- 9. 18kW Tankless Water Heater Electric 240V WINTEMP, On Demand Instant...
- 10. Rheem 3.5kW 120V Point of Use Thermostatic Tankless Electric Water...
Top 10 2 GPM Tankless Water Heaters Brands on Amazon
Here is the list of top-rated brands that were evaluated by CherryPicks.
- thermomate
- Orbek
- LiberLive
- NOVIEEX
- Rheem
- WINTEMP
- xwdzswgs
- Westinghouse
- CAMPLUX ENJOY OUTDOOR LIFE
- EcoSmart
Related 2 GPM Tankless Water Heaters Guides
For more personalized 2 GPM Tankless Water Heaters guides, Check those pages,
GPM
Top 10 2 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. Woot : 264,925 Yearly Feedback , Avg. Ratings 4.8
- 2. eFaucets : 7,050 Yearly Feedback , Avg. Ratings 4.4
- 3. Camplux : 2,734 Yearly Feedback , Avg. Ratings 4.7
- 4. Gasland : 1,801 Yearly Feedback , Avg. Ratings 4.6
- 5. DC Home Supply : 1,575 Yearly Feedback , Avg. Ratings 4.5
- 6. Mizudo Home Comfort Direct : 401 Yearly Feedback , Avg. Ratings 4.7
- 7. Amazon.com : 386 Yearly Feedback , Avg. Ratings 4.7
- 8. ThermoMate Official : 371 Yearly Feedback , Avg. Ratings 4.7
- 9. Westinghouse Home Comfort Direct : 265 Yearly Feedback , Avg. Ratings 4.8
- 10. Columbiatradestock (S/N Info Recorded) : 161 Yearly Feedback , Avg. Ratings 4.6
| Rank | Name | Yearly Feedbacks | Avg. Ratings |
|---|---|---|---|
| 🥇 | Woot | 264,925 | 4.8 |
| 🥈 | eFaucets | 7,050 | 4.4 |
| 🥉 | Camplux | 2,734 | 4.7 |
| 4 | Gasland | 1,801 | 4.6 |
| 5 | DC Home Supply | 1,575 | 4.5 |
| 6 | Mizudo Home Comfort Direct | 401 | 4.7 |
| 7 | Amazon.com | 386 | 4.7 |
| 8 | ThermoMate Official | 371 | 4.7 |
| 9 | Westinghouse Home Comfort Direct | 265 | 4.8 |
| 10 | Columbiatradestock (S/N Info Recorded) | 161 | 4.6 |
[Get] 2 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 2 GPM Tankless Water Heaters to buy for new September 2026?
CherryPicks’s Methodology for Evaluating 2 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 2 GPM Tankless Water Heaters reviews based on our selection criteria. It helped us shortlist the top qualified and rated 2 GPM Tankless Water Heaters for Rough Plumbing, We found that most customers choose 2 GPM Tankless Water Heaters with an average price of $326.75, and the top brands are Westinghouse, Electrolux, EcoSmart, CAMPLUX ENJOY OUTDOOR LIFE, GASLAND, Rheem And thermomate.
Then our expert-level editors reviewed all those quality items and selected the top 27 2 GPM Tankless Water Heaters for you, We have researched hundreds of sellers and picked the top sellers for Rough Plumbing, including Amazon Resale, Woot, eFaucets, Camplux, Gasland, DC Home Supply, Mizudo Home Comfort Direct, Amazon.com, ThermoMate Official, Westinghouse Home Comfort Direct, Columbiatradestock (S/N Info Recorded) And Trena's Liquidation LLC. The Tankless Water Heater Electric, ThermoMate 8kW ... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 260 consumers with an average rating of 4.2.
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 2 GPM Tankless Water Heaters to buy.
Nathaniel Kapman owns a small store where he sells tools for home improvement. From interacting with these tools over the years, he has developed a wealth of experience and can tell which tool is good for what. However, on this platform, he does not use intuition. Instead, he follows the laid down guidelines, making his reviews and guide top-notch.