Top 30 14 GPM Tankless Water Heaters on Amazon (Verified You can Buy)
Top 1
Best for MAREY
Marey ECO150 220V/240V-14.6kW Tankless Water Heater with Smart Technology, Small, White
MAREY
ECO150
8.7 x 3.5 x 14.2 Inches
10.1 Pounds
Ratings for MAREY (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Walk Straight Selling | - | ✅ | ✅ | ✅ |
Features
Unit requires 220v~240v and (1) 70 amp double pole breaker. Minimum Activation Rate 0.50 GPM
ETL approved
Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Indoor Installation
Rinnai
RU199iN
22.05 x 14.76 x 33.86 Inches
74.1 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Big Frog Supply | - | ✅ | ✅ | ✅ |
| Plumbing & HVAC Wholesale | - | ✅ | ✅ | ✅ |
| Amazon.com | - | ✅ | ✅ | ✅ |
| The Luxury Coffee Shop | - | ✅ | ✅ | ✅ |
| RobinM4554 | - | ✅ | ✅ | ✅ |
Features
Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
Top 3
Rinnai V75EN Tankless Hot Water Heater, 7.5 GPM, Natural Gas, Outdoor Installation
Rinnai
V75EN
17.5 x 30.0 x 13.0 Inches
47.4 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Buildcom | 974 | ✅ | ✅ | ✅ |
| COOP UG&K LLC | - | ✅ | ✅ | ✅ |
Features
Discontinued. Please see new model RE180eN
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 7.5 GPM (5 fixtures at once)
Top 4
Best for Stiebel Eltron
Best for Stiebel Eltron
Best for EcoSmart
Best for 6 GPM
Best for 12 GPM
Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White, 23
Stiebel Eltron
239223
4.63 x 16.63 x 14.5 inches
19.0 Pounds
High Efficiency
Ratings for Stiebel Eltron (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| FruityFlix LLC | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Big Frog Supply | - | ❌ | ❌ | ❌ |
| POWER HOUSE LLC | - | ❌ | ❌ | ❌ |
Features
On demand a continuous and unlimited supply of hot water
Sleek design saves space and no venting required, It also features two different temperature memory presets, making it easy to adjust for personalized needs.
Top 5
Best for 12 GPM
Rinnai RSC199iN Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Natural Gas Water Heater, Up to 11 GPM, Indoor Installation, 199,000 BTU
Rinnai
RSC199iN
33.86 x 21.26 x 14.37 Inches
79.0 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Plumbing & HVAC Wholesale | - | ✅ | ✅ | ✅ |
| Buildcom | 974 | ✅ | ✅ | ✅ |
| Amazon.com | - | ✅ | ✅ | ✅ |
Features
Smart-Circ Intelligent Recirculation: This tankless hot water heater features Smart-Circ technology that learns your water usage patterns, then schedules pump and recirucation accordinlgy for superior energy efficiency and convenience
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This indoor condensing tankless hot water heater from Rinnai is only the size of a small suitcase, but provides up to 11 GPM (7 fixtures at once)
Top 6
Best Water Heaters & Parts
Best for Rheem
Best for Inline
Best for Tanked
Best for Electric
Best for NG
Best for Digital
Best for Thermostat
Best for Whole House
Best for Rheem
Best for 20 Gallon
Best for 50 Gallon
Best for 80 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 6 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Best for 11 GPM
Best for 12 GPM
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
Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water Heater
Rheem
RTGH-95DVLN-2
27.5 x 9.75 x 28.5 inches
77.0 pounds
High
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
Features
Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Top 8
Best for 12 GPM
RHEEM RTGH-84DVLN-2 Natural Gas Condensing Tankless Water Heater, Silver , Gray
Rheem
RTGH-84DVLN-2
27.5 x 9.8 x 18.5 Inches
77.9 Pounds
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| PJS Superstore | - | ✅ | ✅ | ✅ |
Features
Hot water without the wait - or the waste
Low operating cost - High energy efficiency and water savings setting
Top 9
Best for Rheem
Best for Tanked
Best for Whole House
Best for 20 Gallon
Best for 80 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 6 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Best for 11 GPM
Best for 12 GPM
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
Rheem Mid-Efficiency 8.4GPM Outdoor Natural Gas Tankless Water Heater
Rheem
RTG-84XLN-1
13.88 x 13.88 x 23.63 inches
54.0 Pounds
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| eFaucets | 9,630 | ❌ | ❌ | ❌ |
Features
Exclusive Water Savings technology conserving up to 1, 100 gallons per year
157, 000 BTU (gas consumed per hour)
Rinnai RL75IN Tankless Hot Water Heater, 7.5 GPM, Natural Gas, Indoor Installation
Rinnai
RL75iN
17.5 x 13.0 x 31.0 Inches
54.0 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| eFaucets | 9,630 | ✅ | ✅ | ✅ |
Features
Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits; For the latest in non-condensing technology that speeds up service and installation, check out our new RE160iN model
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 7.5 GPM (5 fixtures at once)
Top 12
Airthereal Electric Tankless Water Heater 14kW, 240Volts - Endless On-Demand Hot Water - Self Modulates to Save Energy Use - Small Enough to Install Anywhere - for 1 Shower, Evening Tide series
AIRTHEREAL
14kW
15.87 x 11.14 x 2.87 Inches
Ratings for AIRTHEREAL (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Sain Store | 1,426 | ✅ | ✅ | ✅ |
Features
☼ Endless Hot Water: Imagine you are the last one in your family to take a shower before heading out for the day. You turn on the faucet and the water is freezing cold. Too bad you don’t have an Airthereal Electric Tankless Water to provide endless hot water on demand with no preheating, temperature fluctuations, or running out of hot water in the tank.
☼ Save Space: That water heater in the basement or utility closet takes up a ton of space. This wall-mounted water heater uses 90% less space than a traditional hot water heater with a tank.
Top 13
Rinnai RU199eP Condensing Tankless Hot Water Heater, 11 GPM, Propane, Outdoor Installation
Rinnai
RU199eP
22.05 x 14.76 x 33.86 Inches
72.5 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Big Frog Supply | - | ✅ | ✅ | ✅ |
| Amazon.com | - | ✅ | ✅ | ✅ |
Features
Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
Rinnai RU199eN Condensing Tankless Hot Water Heater, 11 GPM, Natural Gas, Outdoor Installation
Rinnai
RU199eN
22.05 x 14.76 x 33.86 Inches
72.5 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
Features
Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
Rinnai RL94IN Tankless Hot Water Heater, 9.8 GPM, Natural Gas, Indoor Installation
Rinnai
RL94IN
17.5 x 13.0 x 31.0 Inches
54.78 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| eFaucets | 9,630 | ✅ | ✅ | ✅ |
Features
Original Design: Tankless hot water heater's Circ-Logic technology offers recirculation patterns that match your habits; For the latest in non-condensing technology that speeds up service and installation, check out our new RE180iN model
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 9.8 GPM (6 fixtures at once)
EcoSmart ECO 27 Tankless Water Heater, Electric, 27-kW - Quantity 1, 17 x 17 x 3.5
EcoSmart
ECO 27
17.0 x 17.0 x 17.0 inches
14.7 pounds
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| EXPRESS DISTRIBUTION | - | ❌ | ❌ | ❌ |
| Returned Solutions | - | ❌ | ❌ | ❌ |
| Brookpark WIRLESS & Appliance | - | ❌ | ❌ | ❌ |
Features
Endless on-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 17 x 17 x 3.75 inches
Top 17
Electric Tankless Water Heater, 14kw 240V On-Demand Hot Water Heater for Shower, Instant Water Heater Digital Display,Point-of-Use Endless 3.2 GPM for Kitchen Washing Hand Washing Shower Bathroom
SimLiTa
FBA-020
15.8661 x 11.1417 x 3.4252 Inches
Ratings for SimLiTa (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| SimLiTa | - | ✅ | ✅ | ✅ |
Features
【Electric Hot Water Tank on Demand】Imagine when there is not enough hot water, you turn on the faucet and the water is freezing cold.Too bad you don’t have an SimLiTa Electric Tankless Water to provide endless hot water on demand with no preheating, temperature fluctuations, or running out of hot water in the tank.
【Save Space & Easy installation】That water heater in the basement or utility closet takes up a ton of space. No need to install a water tank.The tankless water heater possible to install any place as point of use water heater to avoid energy and water waste, ideal for kitchen sink, bar, school, hospital, community and hair salon.
Top 18
Best for Rinnai
Best for Rinnai
Best for 80 Gallon
Best for Rinnai
Best for 9 GPM
Best for 15 GPM
Rinnai RU160iN Condensing Tankless Hot Water Heater, 9 GPM, Natural Gas, Indoor Installation
Rinnai
RU160in
18.5 x 11.45 x 31.3 Inches
72.5 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Plumbing & HVAC Wholesale | - | ✅ | ✅ | ✅ |
| Amazon.com | - | ✅ | ✅ | ✅ |
| eFaucets | 9,630 | ❌ | ❌ | ❌ |
Features
Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
Rheem RTG-70XLP-1 Tankless Water Heater, Grey, Grey
Rheem
RTG-70XLP-1
9.88 x 13.88 x 25.63 Inches
54.0 Pounds
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ✅ | ✅ | ✅ |
Features
Continuous Hot Water – never run out of hot water, even with back-to-back showers
Tankless Gas Water Heaters are cost saving and energy efficient
Top 20
Best Water Heaters & Parts
Best for 10 Gallon
Best for 80 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 6 GPM
Best for 10 GPM
Best for 11 GPM
Best for 12 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 | 7,587 | ✅ | ✅ | ✅ |
| 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 21
Rinnai RU199iP Condensing Tankless Hot Water Heater, 11 GPM, Propane, Indoor Installation
Rinnai
RU199iP
22.05 x 14.76 x 33.86 Inches
64.0 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| eFaucets | 9,630 | ✅ | ✅ | ✅ |
| Buildcom | 974 | ✅ | ✅ | ✅ |
| ✅ HomePlumbing ✅ | 3,964 | ✅ | ✅ | ✅ |
| Plumbing & HVAC Wholesale | - | ✅ | ✅ | ✅ |
| Amazon.com | - | ✅ | ✅ | ✅ |
Features
Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
Top 22
Best for 12 GPM
Rinnai RSC199iP Smart-Circ Condensing Gas Tankless Water Heater, Super High Efficiency Plus Propane Heater, Up to 11 GPM, Indoor Installation, 199,000 BTU
Rinnai
RSC199iP
33.86 x 21.26 x 14.37 inches
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Plumbing & HVAC Wholesale | - | ✅ | ✅ | ✅ |
| Buildcom | 974 | ✅ | ✅ | ✅ |
| Amazon.com | - | ✅ | ✅ | ✅ |
Features
Smart-Circ Intelligent Recirculation: This tankless hot water heater features Smart-Circ technology that learns your water usage patterns, then schedules pump and recirucation accordinlgy for superior energy efficiency and convenience
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This indoor condensing tankless hot water heater from Rinnai is only the size of a small suitcase, but provides up to 11 GPM (7 fixtures at once)
Rinnai V65EN Tankless Hot Water Heater, 6.5 GPM, Natural Gas, Outdoor Installation
Rinnai
V65EN
9.6 x 14.04 x 24.3 Inches
47.4 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| eFaucets | 9,630 | ✅ | ✅ | ✅ |
| Amazon.com | - | ✅ | ✅ | ✅ |
Features
Original Design: Tankless hot water heater only heats when necessary to conserve energy; For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE160eN model
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 6.5 GPM (5 fixtures at once)
Top 24
Best for Rheem
Best for Inline
Best for Tanked
Best for Electric
Best for Residential
Best for Rheem
Best for Takagi
Best for Rheem
Best for AO Smith
Rheem 240V Heating Chamber RTEX-13 Residential Tankless Water Heater, GRAY
Rheem
RTEX-13
12.63 x 8.25 x 3.63 Inches
3.9683 Pounds
at least 99.8% energy efficient
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| CARESAN | - | ✅ | ✅ | ✅ |
| CASA CAYOS | - | ✅ | ✅ | ✅ |
| Miami Water Heater | - | ✅ | ✅ | ✅ |
| PRODUCT X MAS | 9,293 | ✅ | ✅ | ✅ |
| Bullit Sales | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Columbiatradestock (S/N Info Recorded) | - | ❌ | ❌ | ❌ |
| USA-Fast-Delivery LLC | - | ❌ | ❌ | ❌ |
Features
External adjustable digital thermostatic control with LED display (+/1 degree accuracy
Durable Copper immersion two heating elements, field Serviceable.Self-modulating power control
Rheem RTEX-27 240V 3 Heating Chambers Residential Tankless Water Heater
Rheem
RTEX-27
1.0 x 1.0 x 1.0 Inches
17.8 Pounds
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| GP Conservation | - | ✅ | ✅ | ✅ |
| Amazon.com | - | ✅ | ✅ | ✅ |
| AXY Co | - | ✅ | ✅ | ✅ |
| Columbiatradestock (S/N Info Recorded) | - | ❌ | ❌ | ❌ |
| Voomi Supply | - | ❌ | ❌ | ❌ |
| Big Frog Supply | - | ❌ | ❌ | ❌ |
| Direct Supply Store | 5,208 | ❌ | ❌ | ❌ |
| 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 26
Best for 6 GPM
Tankless Water Heater Electric 27kW 240 Volt, thermomate On Demand Instant Endless Hot Water Heater, Digital Temperature Display for Residential Whole House Shower, 114A GRAY
thermomate
ET270
17.12 x 13.12 x 3.12 Inches
Ratings for thermomate (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| thermoflow | - | ✅ | ✅ | ✅ |
| THMOS | - | ✅ | ✅ | ✅ |
Features
[Instant Unlimited Hot Water] - REQUIRE 3 SET x Double-pole 40AMP Breakers to Achieve 240V for this On demand tankless electric water heater, providing hot water in 3 seconds when you need it and as long as you need, eliminating wait time, never run out of hot water again and No More cold shower. Flow Rate 5.27GPM @35°F Rise
[Self-modulating Power] - Self-modulating technology regulating the amount of energy required to heat water only when you need it with 99.8% efficient, saving up to 60% on water heating cost comparing to traditional tank water heater. Wall mounted compact size with no water tank, convenient for any spaces, saving floor space and fitting into tight spaces.
Rinnai V53DeN Tankless Hot Water Heater, 5.3 GPM, Natural Gas, Outdoor Installation
Rinnai
V53DeN
18.0 x 18.0 x 31.2 inches
33.0 pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Big Frog Supply | - | ✅ | ✅ | ✅ |
| eFaucets | 9,630 | ❌ | ❌ | ❌ |
Features
Endless Hot Water: Enjoy unlimited hot water flow throughout the house; compact, durable, and easy to install; professional installation recommended
Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary.
Top 28
Best for 80 Gallon
Propane Gas Tankless Water Heater, Outdoor Installation 5.1 GPM, 120,000 BTU White Instant Hot Water Heater, FOGATTI InstaGas Classic 120S Series
FOGATTI
HOU-FDG420OD-CS120S-LP
7.28 x 15.51 x 23.94 Inches
Ratings for FOGATTI (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Westinghouse Home Comfort Direct | - | ✅ | ✅ | ✅ |
Features
【Outdoor installation to save space】The product is installed outdoors and does not occupy the living space. The bottom built-in forced DC fan eliminates the influence of external wind. So as to ensure the stability of combustion, achieve safety, energy saving and no pollution. We recommend that all installations are carried out in accordance with local building and plumbing codes by licensed professionals.
【Endless water supply without preheating】The heat exchanger quickly heats the water to a maximum of 140°F, which is ready for use without waiting for hot water. It can run at approximately 5.1 GPM for 40 minutes, enough to produce almost 200 gallons of hot water. Make a multi-point water supply for the whole house to meet your family's water needs.
Rinnai V94iN Tankless Hot Water Heater, 9.8 GPM, Natural Gas, Indoor Installation
Rinnai
V94IN
17.5 x 30.0 x 13.0 Inches
46.3 Pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| eFaucets | 9,630 | ✅ | ✅ | ✅ |
Features
Original Design: Tankless hot water heater only heats when necessary to conserve energy; For the latest in non-condensing technology and a cleaner layout that speeds up service and installation, check out our new RE199iN model
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: Non-condensing tankless hot water heater from Rinnai is only the size of a small suitcase and fits in a wide variety of spaces, but provides up to 9.8 GPM (6 fixtures at once)
Top 30
FOGATTI Propane Gas Tankless Water Heater, Indoor 7.5 GPM, 170,000 BTU White Instant Hot Water Heater, InstaGas Comfort 170 Series
FOGATTI
FDG-CF170W-LPG
26.2 x 17.1 x 7.3 inches
40.8 Pounds
UEF over 0.81
Ratings for FOGATTI (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Westinghouse Home Comfort Direct | - | ✅ | ✅ | ✅ |
Features
We recommend that all installations of units must be done by the local building and plumbing codes of the installation location and installation be done by a licensed professional.
The tankless design means you don't have to wait 30 minutes for preheating and unlimited use of hot water.
Top 10 14 GPM Tankless Water Heaters - Verified to Buy (September 2026)
- 1. Marey ECO150 220V/240V-14.6kW Tankless Water Heater with Smart Technology, Small,...
- 2. Rinnai RU199iN Condensing Tankless Hot Water Heater, 11 GPM, Natural...
- 3. Rinnai V75EN Tankless Hot Water Heater, 7.5 GPM, Natural Gas,...
- 4. Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus...
- 5. Rinnai RSC199iN Smart-Circ Condensing Gas Tankless Water Heater, Super High...
- 6. Rheem 18kW 240V Tankless Electric Water Heater
- 7. Rheem Prestige High Efficiency 9.5GPM Indoor Natural Gas Tankless Water...
- 8. RHEEM RTGH-84DVLN-2 Natural Gas Condensing Tankless Water Heater, Silver ,...
- 9. Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
- 10. Rheem Mid-Efficiency 8.4GPM Outdoor Natural Gas Tankless Water Heater
Top 9 14 GPM Tankless Water Heaters Brands on Amazon
Here is the list of top-rated brands that were evaluated by CherryPicks.
- MAREY
- Rinnai
- Stiebel Eltron
- Rheem
- AIRTHEREAL
- EcoSmart
- SimLiTa
- thermomate
- FOGATTI
Related 14 GPM Tankless Water Heaters Guides
For more personalized 14 GPM Tankless Water Heaters guides, Check those pages,
GPM
Top 10 14 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. Buildcom : 51,606 Yearly Feedback , Avg. Ratings 4.5
- 2. Sain Store : 37,822 Yearly Feedback , Avg. Ratings 4.8
- 3. ✅ HomePlumbing ✅ : 16,294 Yearly Feedback , Avg. Ratings 4.8
- 4. Direct Supply Store : 12,664 Yearly Feedback , Avg. Ratings 4.9
- 5. 718 Sold It : 8,956 Yearly Feedback , Avg. Ratings 4.8
- 6. PRODUCT X MAS : 7,309 Yearly Feedback , Avg. Ratings 4.9
- 7. eFaucets : 7,050 Yearly Feedback , Avg. Ratings 4.4
- 8. Big Frog Supply : 6,493 Yearly Feedback , Avg. Ratings 4.5
- 9. Voomi Supply : 2,260 Yearly Feedback , Avg. Ratings 4.1
- 10. POWER HOUSE LLC : 560 Yearly Feedback , Avg. Ratings 4.6
| Rank | Name | Yearly Feedbacks | Avg. Ratings |
|---|---|---|---|
| 🥇 | Buildcom | 51,606 | 4.5 |
| 🥈 | Sain Store | 37,822 | 4.8 |
| 🥉 | ✅ HomePlumbing ✅ | 16,294 | 4.8 |
| 4 | Direct Supply Store | 12,664 | 4.9 |
| 5 | 718 Sold It | 8,956 | 4.8 |
| 6 | PRODUCT X MAS | 7,309 | 4.9 |
| 7 | eFaucets | 7,050 | 4.4 |
| 8 | Big Frog Supply | 6,493 | 4.5 |
| 9 | Voomi Supply | 2,260 | 4.1 |
| 10 | POWER HOUSE LLC | 560 | 4.6 |
[Get] 14 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.
Shop Prime 14 GPM Tankless Water Heaters Deals
What does "Free Shipping" Mean?
"Free Shipping" means that you will not be charged additional fees for the shipping of that product. However, unlike "Prime," which usually guarantees fast two-day shipping, "Free Shipping" doesn't necessarily mean fast shipping.
Sometimes there might be a minimum purchase requirement to qualify for free shipping if you are not a Prime member. For Prime members, the "Free Shipping" usually refers to the free two-day shipping that is one of the benefits of the Prime membership.
Why Should You Trust Us?
Now hundreds and thousands of Rough Plumbing supplies are available on Amazon, Picking the right one is not easy, and that may take a lot of your time, Right? and What is the best 14 GPM Tankless Water Heaters to buy for new September 2026?
CherryPicks’s Methodology for Evaluating 14 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 14 GPM Tankless Water Heaters reviews based on our selection criteria. It helped us shortlist the top qualified and rated 14 GPM Tankless Water Heaters for Rough Plumbing, We found that most customers choose 14 GPM Tankless Water Heaters with an average price of $870.61, and the top brands are AIRTHEREAL, EcoSmart, Rheem, thermomate, Rinnai, FOGATTI, Stiebel Eltron And MAREY.
Then our expert-level editors reviewed all those quality items and selected the top 30 14 GPM Tankless Water Heaters for you, We have researched hundreds of sellers and picked the top sellers for Rough Plumbing, including Amazon Resale, Buildcom, Sain Store, ✅ HomePlumbing ✅, Direct Supply Store, 718 Sold It, PRODUCT X MAS, eFaucets, Big Frog Supply, Voomi Supply, POWER HOUSE LLC And MTL Retailers. The Marey ECO150 220V/240V-14.6kW Tankless Water He... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 300 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 14 GPM Tankless Water Heaters to buy.
Chris has years of experience as a handyman, helping people with repairs within and outside of the house. He is now retired from such work and runs a local shop where he sells home improvement tools. He would be providing us with guides and reviews on home improvement tools on this platform.