Top 29 10 GPM Tankless Water Heaters on Amazon (Verified You can Buy)
Top 1
Best for Inline
NEW Rinnai RX180iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or Outdoor Water Heater, Up to 10 GPM, 180,000 BTU
Rinnai
RX180iN
19.0 x 19.0 x 31.0 inches
54.0 Pounds
High (0.98 UEF)
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazesingh Depot | - | ❌ | ❌ | ❌ |
| ParieGrit | - | ❌ | ❌ | ❌ |
| eFaucets | 9,712 | ❌ | ❌ | ❌ |
Features
One Model, Anywhere: This Rinnai tankless water heater is installable indoors or outdoors thanks to our new Versa Vent and powered by either propane or natural gas thanks to a Smart Sense gas control system; RX-OVC vent cap required for outdoor install
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This condensing propane and natural gas tankless water heater from Rinnai is only the size of a small suitcase, but provides up to 10 GPM (6 fixtures at once)
Top 2
Best for CAMPLUX
CAMPLUX F10 Ultra, First 2.64 GPM Thermostatic Propane Water Heater, ±1℉ Precision Temperature Control, High Flow 10L Tankless Water Heater Propane for Family Camping, RV, Cabin, Pet Wash
CAMPLUX ENJOY OUTDOOR LIFE
F10 Ultra
5.9 x 5.9 x 18.5 inches
14.5 pounds
Ratings for CAMPLUX ENJOY OUTDOOR LIFE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Camplux | - | ❌ | ❌ | ❌ |
Features
【The World’s 1st Thermostatic Propane Water Heater】No more cold or scalding showers. This 2.64 GPM constant temperature water heater locks in your ideal temperature with ±1℉ precision control. Even with back‑to‑back showers, the water stays perfectly consistent. Enjoy home-like comfort anywhere you go
【Smallest 2.64GPM Water Heater, High Flow for Groups】At 17.6 lb and double the hot water output of compact models, this camping water heater delivers powerful flow. Built‑in folding handle makes it easy to move from truck to campsite. Ideal for families or group camping
Top 3
Best Water Heaters & Parts
Best for Rheem
Best for Tanked
Best for Electric
Best for Timer
Best for Whole House
Best for Rheem
Best for 20 Gallon
Best for 50 Gallon
Best for Takagi
Best for Noritz
Best for Rheem
Best for Stiebel Eltron
Best for Rinnai
Best for EcoSmart
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
Best for 2 GPM
Best for 3 GPM
Best for 4 GPM
Best for 5 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 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 4
Best for Inline
Best for Tanked
Best for Whole House
Best for 20 Gallon
Best for Takagi
Best for Noritz
Best for Rinnai
Best for FOGATTI
Best for Eccotemp
Best for AO Smith
Best for 2 GPM
Best for 4 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 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 5
Best for Whole House
Best for 3 GPM
Best for 4 GPM
Best for 8 GPM
Best for 9 GPM
Best for 11 GPM
Best for 15 GPM
WINTEMP 36kW Tankless Electric Water Heater 240V, Instant On-Demand Endless Hot Water, Up to 8.7 GPM, LED Temperature Display, Whole House Supply, WiFi Control, ETL Certified
WINTEMP
WN36
13.7 x 13.7 x 21.1 Inches
36.05 pounds
Ratings for WINTEMP (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| WINTEMP | - | ❌ | ❌ | ❌ |
Features
Important Note: Please ensure this tankless water heater meets your installation requirements, 300 Amp Household Service Recommended. The WN36 model is rated at 36KW (240V) with a maximum current draw of 150A. It requires 4 x 40 Amp double-pole (DP) breakers and 4 x 8/2 AWG cables with ground. A 300A household power supply is recommended. Unit dimensions: 13.7” (W) x 21.1” (H) x 5.3” (D). Water connection: 3/4" NPT, Please consult a qualified electrician before purchasing
Stable Water Temperature: Automatically adjusts energy consumption based on incoming water temperature and flow rate to ensure maximum efficiency, a consistently stable temperature, and optimal power usage. With a maximum hot water output of 8.7 gallons per minute, it’s ideal for residential showers — no need to wait for preheating, no risk of running out of hot water, and no more temperature fluctuations during your shower. Provides continuous hot water for showers and everyday household use
Top 6
Best Water Heaters
Best for Gas Powered
Best for 30 Gallon
Best Tankless Water Heaters
Best for Rinnai
Best for 4 GPM
Best for 5 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Ranein Propane Gas Tankless Water Heater, Indoor Max 8.5 GPM, 190,000 BTU Instant Hot Water Heater
Ranein
RH19K-LPG
15.08 x 15.08 x 24.25 inches
42.0 Pounds
Ratings for Ranein (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Ranein Store | - | ❌ | ❌ | ❌ |
Features
Fans Placed Underneath: It will be more secure in terms of safety, and no smoke backflow will occur. The blower has large power and can automatically adjust the rotating speed according to the change of external wind pressure and the change of water temperature to provide sufficient oxygen for gas combustion, ensuring full combustion and safer use. Low noise and longer service life.
No Waiting Required: Unlike traditional tank water heaters, tankless water heaters eliminate the need for a 30-minute preheating wait time, allowing you to have unlimited hot water on demand.
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 8
Best for CAMPLUX
Best for Inline
Best for Gas Powered
Best for Battery
Best for Propane Liquid
Best for Outdoor
Best for Propane
Best Gas Water Heaters
Best for 80 Gallon
Best Tankless Water Heaters
Best for FOGATTI
Best for Eccotemp
Best for CAMPLUX
Best for 5 GPM
Best for 7 GPM
Best for 9 GPM
Best for 11 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 9
Best for 40 Gallon
Best for 50 Gallon
Best for Tankless
Best Tankless Water Heaters
Best for Noritz
Best for 7 GPM
Best for 11 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
GASLAND BS264 Outdoor Propane Tankless Water Heater 2.64GPM, 10L Portable Hot Water Heater for Cabin, Barn, Camping, RV, Overheating Protection, Easy to Install, White
GASLAND
BS264
13.0 x 13.0 x 21.6 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 11
Best for Rinnai
Best for Rinnai
Best for Tankless
Best Tankless Water Heaters
Best for Rinnai
Best for 9 GPM
NEW Rinnai RX160iN Condensing Smart Sense Natural Gas or Propane Tankless Water Heater, Indoor or Outdoor Water Heater, Up to 9 GPM, 160,000 BTU
Rinnai
RX160iN
19.0 x 19.0 x 31.0 inches
54.0 pounds
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| eFaucets | 9,712 | ❌ | ❌ | ❌ |
Features
One Model, Anywhere: This Rinnai tankless water heater is installable indoors or outdoors thanks to our new Versa Vent and powered by either propane or natural gas thanks to a Smart Sense gas control system; RX-OVC vent cap required for outdoor install
Never Run Out of Hot Water with this Compact Tankless Gas Water Heater: This condensing propane and natural gas tankless water heater from Rinnai is only the size of a small suitcase, but provides up to 9 GPM (6 fixtures at once)
APUS 190,000 BTU Outdoor Tankless Water Heater, 8.1 GPM Natural Gas Instant Hot Water Heater with WiFi & Remote Control, High Efficiency for Supports 5 Outlets
APUS
AP-AWH-W26NG
6.54 x 6.54 x 22.48 inches
Ratings for APUS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| APUS WATER EQUIPMENT | - | ❌ | ❌ | ❌ |
Features
Whole-Home Hot Water: This high-efficiency gas tankless water heater delivers 190,000 BTU and 8.1 gallons per minute of instant hot water, making it the perfect on demand water heater for whole-house use. Our advanced tankless water heater gas system effortlessly supplies 3 showers + 2 faucets simultaneously, while the ultra-low 0.79 GPM minimum flow ensures this hot water heater performs reliably even with weak water pressure
Smart Temperature Control: Remotely adjust your tankless hot water heater via App (Works with Tuya APP) or wired controller (95°F–149°F). Enjoy precise on-demand heating with a stable ±1°F temperature accuracy
Top 13
Best for 15 GPM
MIZUDO Tankless Water Heater Propane, 199,000 BTU, Indoor Installation, Max 10.3 GPM, WiFi&APP Control, CSA Certified Non Condensing, High Efficiency for Large Families Residential Whole House
MIZUDO
WCIU-HW199A1G-LP-M1n
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 propane tankless hot 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 14
Best Water Heaters & Parts
Best for 10 Gallon
Best for 100 Gallon
Best for Takagi
Best for Noritz
Best for Rheem
Best for Rinnai
Best for EcoSmart
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
Best for 11 GPM
EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
EcoSmart
ECO 11
3.75 x 8.0 x 11.5 inches
6.5 pounds
Energy Efficient
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| 718 Sold It | 7,573 | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Endless On-Demand Hot Water; Consistent hot water when you need it that never runs out; Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature.Amperage Draw : 54 A
Save Space; EcoSmart tankless electric water heaters are 90% smaller than traditional tank heaters; may be installed on wall or at point of use; Dimensions 11.5 x 8 x 3.75 inches
Top 15
Best for Whole House
Best for Residential
Best for 30 Gallon
Best for Noritz
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
27kW Tankless Water Heater Electric, NOVIEEX 240V 3s Instant Hot Water Heater, Flow Rate Max 7.4 GPM, Supply for 3-4 Points, Indoor Installation, Heavy Duty Ideal for Whole House Use
NOVIEEX
DS-27
14.13 x 14.13 x 15.86 Inches
Ratings for NOVIEEX (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| NOVIEEX Global | - | ❌ | ❌ | ❌ |
Features
【WHOLE HOUSE HEAVY DUTY】 The NOVIEEX 27kW tankless hot water heater electric is a heavy-duty solution custom-built to satisfy full household demands. Designed to seamlessly supply larger homes, its streamlined wall-mount enclosure (14.13" x 15.86" x 3.18") saves 80% more space than mammoth 50+ gallon storage tanks, inserting perfectly into narrow closets or compact utility spaces.
【3-4 MULTI-POINT LUXURY FLOW】 It delivers a massive, industry-topping water flow of up to 7.4 Gallons Per Minute (GPM). This high-velocity output effortlessly services 3 to 4 water applications simultaneously. Fill a grand whirlpool bathtub, run the washing machine, and support multiple master showers concurrently without a single drop in temperature or water pressure.
Top 16
Best Water Heaters
Best for Inline
Best for LP
Best for Outdoor
Best for Propane
Best for 30 Gallon
Best for 75 Gallon
Best for 80 Gallon
Best for 60 Gallon
Best for Eccotemp
Best for 5 GPM
Kohree Tankless Water Heater Propane, 6L 1.58 GPM Portable Tankless Water Heater with Handle, On Demand Instant Hot Water Heater with Overheating Protection, for RV Camping, Outdoor Shower, White
Kohree
KR5506
14.17 x 14.17 x 8.27 Inches
Ratings for Kohree (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Kohree | 1,352 | ❌ | ❌ | ❌ |
| Amazon.com | - | ❌ | ❌ | ❌ |
Features
Instant Hot Water: With a maximum output power of 41000 BTU/hour, 1.58 gallons of hot water can be produced per minute at a flow rate of 1.58 GPM. Low water pressure start-up, requiring only 3 PSI of water pressure. The temperature rise is 120℉ (50℃) at its highest point and 50℉ (10℃) at its lowest point. Enjoy on-demand hot water without the need for a storage tank, ensuring a constant supply for your household needs.
Safety Features: CSA Safety Approved & 6-in-1 Protection, including anti-freezing protection, over-heating protection, low water flow protection, dry combustion protection, high water pressure protection and flame failure device. Kohree portable water heater is also windproof and can be used on windy days.
Top 17
Best for Digital
Best for Mini
Best for Under Sink
Best for 120 Volt
Best for Takagi
Best for FOGATTI
Mini Tankless Under Sink Instant Water Heater 120V 3kW Plug In, LED Digital Display with Control Knob, IPX4, Multiple Safety Features, 30-55℃ Thermostatic On Demand Electric Water Heater, Modern Gray
Generic
C3000
7.1 x 7.1 x 9.8 inches
Ratings for Generic (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| LECLOC SHOP | - | ❌ | ❌ | ❌ |
Features
LED Digital Display with Big Control Knob: This point of use water heater is very easy to use. 1 knob for power ON/OFF and temperature adjustment, offering a better use experience than others 3 little touchscreen buttons. You can adjust the temperature between 30℃ and 55℃
Multiple Safety Features and Smart Design: This instant water heater is engineered with comprehensive safety protections, including overheat protection, leakage protection, dry heating protection, over-pressure protection, IPX4 waterproofing, and drop test certification. Besides, it has automatic fault diagnosis and constant temperature memory functions. It is very safe and intelligent to use
Stiebel Eltron 202655 Model DHC 10-2 Classic Single Sink Point-of-Use Electric Tankless Water Heaters; 9.6kW/7.2kW, 240V/208V, 40A/35A, 8/2 AWG, 0.8 gpm (3 l/min)
Stiebel Eltron
DHC 10-2 Classic
7.9528 x 14.1732 x 3.8583 inches
9.0 pounds
Ratings for Stiebel Eltron (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Megamart USA | 1,734 | ❌ | ❌ | ❌ |
Features
A sleek new, modern housing with the same reliable copper heating system
Hydraulically controlled for quiet operation; Resettable safety high limit switch
Top 19
Best Water Heaters
Best for CAMPLUX
Best for Inline
Best for Outdoor
Best for Propane
Best Tankless Water Heaters
Best for CAMPLUX
Best for 5 GPM
Best for 9 GPM
Best for 11 GPM
Best for 15 GPM
Camplux 1.32 GPM Portable Water Heater Tankless Water Heater Propane Outdoor Black
CAMPLUX ENJOY OUTDOOR LIFE
AY132BN
11.42 x 4.33 x 14.8 inches
10.0 pounds
Ratings for CAMPLUX ENJOY OUTDOOR LIFE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| CampluxDirect | - | ✅ | ✅ | ✅ |
| Camplux | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Portable, Lightweight Design: This portable water heater weights only 10 pounds and comes with folding handle keeps it out of the way and enables easy setup outside
Simple, Easy Hot Showers: The camplux portable hot water heater is easy to set-up. All you need is the water heater, gas bottle away you go! Adjust your temp is as just as easy. Find your perfect flow with the easy to use temperature dials.Setting up this propane water heater simply takes 10 minutes
Top 20
Best for Rheem
Best for Indoor
Best for High Efficiency
Best for Rheem
Best for Rheem
Best for 15 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 21
Best for Whole House
Best for Takagi
Best for Noritz
Best for Rheem
Best for Stiebel Eltron
Best for EcoSmart
Best for FOGATTI
Best for AO Smith
Best for 2 GPM
Best for 3 GPM
Best for 4 GPM
Best for 5 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 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
Top 22
Best for Gas Powered
Best for Digital
Best for Propane
Best for 30 Gallon
Best for 75 Gallon
Best for 80 Gallon
Best for 5 GPM
Best for 15 GPM
Syfuulv Propane Tankless Water Heater Outdoor, 1.58 GPM Portable Water Heater Instant Hot, 41,000 BTU, LED Digital Display, Overheating Protection, Camping, RV, Cabin, Barn, White 6L
syfuulv
GR-106A
11.8 x 11.8 x 17.3 inches
9.7 pounds
89%
Ratings for syfuulv (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Syfuulv | - | ❌ | ❌ | ❌ |
Features
Powerful Instant Heating, Stable Hot Water Supply : This propane water heater with a 41,000 BTU burner and 3-second instant heating technology, Syfuulv propane instant hot water heater delivers hot water without delay. The 1.58 GPM (6L/min) high-flow design ensures a steady hot water output
Portable & All-in-One Design, Perfect for Outdoor Use: Designed for outdoor adventures, this portable tankless water heater has a compact size 17.3*11.8*5.1 inches, lightweight body (approx. 9.7 lbs) and sturdy foldable handle , which make it easy to carry in a camping bag or car trunk, taking up minimal space. This outdoor water heater can be set up in under 5 minutes, adaptable to RV hookups, campsite water lines, garden faucets, and more. Ideal for camping showers, RV trips, backyard parties, or job site use, meeting needs like outdoor showering, and pet cleaning
Camplux 2.64 GPM Propane Portable Gas Water Heater, Outdoor Tankless Camping Water Heater with Digital Display, White
CAMPLUX ENJOY OUTDOOR LIFE
BW264S
12.8 x 6.1 x 21.7 inches
18.0 pounds
Ratings for CAMPLUX ENJOY OUTDOOR LIFE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Camplux | - | ✅ | ✅ | ✅ |
Features
CSA Safety Standard -CSA safety standard approved tankless propane water heater,flame failure device, anti-freezing protection, over heating protection to ensure the family safety. Automatically decrease water pressure between 3.6-110 PSI. The anti-freezing drain plug can discharge the residual water to avoid freezing in cold areas or in case of long time no use. The propane hot water heater will shut off automatically when high water temperature protection over 176 °F.
Lightweight Portable Design-Compact size and weights 23 lbs for easily carry. Hang it using the mounting bracket on the top/back of the gas water heater. It only takes you a 15 minutes to install the propane water heater.
Top 24
Best for EcoSmart
Best for Takagi
Best for EcoSmart
Best for FOGATTI
Best for AO Smith
Best for 2 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 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
Top 25
Best for Inline
Best for Electric
Best for NG
Best for Thermostat
Best for Residential
Best for Rheem
Best for Rheem
Best for AO Smith
Best for 5 GPM
Best for 7 GPM
Best for 9 GPM
Best for 11 GPM
Rheem 6.5kW 240V Point of Use Thermostatic Tankless Electric Water Heater
Rheem
RTEX-06T
10.875 x 10.875 x 5.875 inches
4.0 Pounds
Highly Efficient
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ❌ | ❌ | ❌ |
| Valley Deals AZ | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Endless On-Demand Hot Water - Consistent hot water when you need it that never runs out
Continuously monitored water temperature and controlled flow rates ensure efficiency and consistent performance within 1 degree of selected temperature
MicroHeat 6-10 Hydronic Heater 240-Volt 10-kW-kW 5-GPM Point Of Use Smart Tankless Electric Water Heater
Generic
CFEWHS6HYDR-10/PWU
8.69 x 8.69 x 11.62 inches
9.0 pounds
Ratings for Generic (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| FabFindz4U | - | ❌ | ❌ | ❌ |
Features
Color/Finish Family White Use Location Indoor Series Name MicroHeat 6-10 Hydronic Heater Display Type Digital Type Tankless Installation Type Wall mount Power Source Electric Vent Type None required Grade Commercial/Residential
Water Connection Size 3/4-in Family Size 1 Weight (lbs.) 9.6
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 28
Best for Rinnai
Best for Outdoor
Best for Propane
Best for Rinnai
Best for Noritz
Best for Rinnai
Best for 5 GPM
Best for 9 GPM
Rinnai V53DeP Tankless Hot Water Heater, 5.3 GPM, Propane, Outdoor Installation
Rinnai
V53DeP
13.0 x 13.0 x 30.0 inches
33.0 pounds
High
Ratings for Rinnai (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| eFaucets | 9,712 | ✅ | ✅ | ✅ |
| Amazon.com | - | ✅ | ✅ | ✅ |
| Big Frog Supply | - | ✅ | ✅ | ✅ |
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
Camplux Tankless Water Heater, 2.64 GPM On Demand Instant Hot Water Heater, Propane Tankless Water Heater Indoor, White
CAMPLUX ENJOY OUTDOOR LIFE
CM264
5.91 x 5.91 x 20.28 Inches
23.8 pounds
Ratings for CAMPLUX ENJOY OUTDOOR LIFE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Camplux | - | ✅ | ✅ | ✅ |
| Amazon.com | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
2.64 GPM Instant Hot Water -Camplux high capacity 2.64 GPM propane tankless water heater delivers 2.64 GPM on demand endless hot water ensures instant hot water for any small homes, cabins or apartments. On demand water heater only heats the water when you need it and no waiting for preheat.
6-IN-1 Multiple Protection- Flame-out protection, anti-freezing protection （manual drainage needed）, over-heating protection, air flow pressure switch protection to ensure the safety. Safe electronic ignition system, plugs into standard 120V electrical outlet with UL-listed cord.
Top 10 10 GPM Tankless Water Heaters - Verified to Buy (September 2026)
- 1. NEW Rinnai RX180iN Condensing Smart Sense Natural Gas or Propane...
- 2. CAMPLUX F10 Ultra, First 2.64 GPM Thermostatic Propane Water Heater,...
- 3. Rheem 18kW 240V Tankless Electric Water Heater
- 4. Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray
- 5. WINTEMP 36kW Tankless Electric Water Heater 240V, Instant On-Demand Endless...
- 6. Ranein Propane Gas Tankless Water Heater, Indoor Max 8.5 GPM,...
- 7. GASLAND Tankless Water Heater Propane 10L 2.64GPM Outdoor Propane Shower...
- 8. Camplux Tankless Water Heater, 1.32 GPM Portable Propane Outdoor Camping...
- 9. MIZUDO Natural Gas Tankless Water Heater, 199,000 BTU, Indoor Installation,...
- 10. GASLAND BS264 Outdoor Propane Tankless Water Heater 2.64GPM, 10L Portable...
Top 10 10 GPM Tankless Water Heaters Brands on Amazon
Here is the list of top-rated brands that were evaluated by CherryPicks.
- Rinnai
- CAMPLUX ENJOY OUTDOOR LIFE
- Rheem
- WINTEMP
- Ranein
- GASLAND
- MIZUDO
- APUS
- EcoSmart
- NOVIEEX
Related 10 GPM Tankless Water Heaters Guides
For more personalized 10 GPM Tankless Water Heaters guides, Check those pages,
GPM
Top 10 10 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. Kohree : 39,239 Yearly Feedback , Avg. Ratings 4.9
- 2. Megamart USA : 32,747 Yearly Feedback , Avg. Ratings 4.8
- 3. 718 Sold It : 8,956 Yearly Feedback , Avg. Ratings 4.8
- 4. eFaucets : 7,050 Yearly Feedback , Avg. Ratings 4.4
- 5. Big Frog Supply : 6,493 Yearly Feedback , Avg. Ratings 4.5
- 6. Camplux : 2,734 Yearly Feedback , Avg. Ratings 4.7
- 7. Gasland : 1,801 Yearly Feedback , Avg. Ratings 4.6
- 8. Amazesingh Depot : 670 Yearly Feedback , Avg. Ratings 5.0
- 9. Mizudo Home Comfort Direct : 401 Yearly Feedback , Avg. Ratings 4.7
- 10. Amazon.com : 386 Yearly Feedback , Avg. Ratings 4.7
| Rank | Name | Yearly Feedbacks | Avg. Ratings |
|---|---|---|---|
| 🥇 | Kohree | 39,239 | 4.9 |
| 🥈 | Megamart USA | 32,747 | 4.8 |
| 🥉 | 718 Sold It | 8,956 | 4.8 |
| 4 | eFaucets | 7,050 | 4.4 |
| 5 | Big Frog Supply | 6,493 | 4.5 |
| 6 | Camplux | 2,734 | 4.7 |
| 7 | Gasland | 1,801 | 4.6 |
| 8 | Amazesingh Depot | 670 | 5.0 |
| 9 | Mizudo Home Comfort Direct | 401 | 4.7 |
| 10 | Amazon.com | 386 | 4.7 |
[Get] 10 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 10 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 10 GPM Tankless Water Heaters to buy for new September 2026?
CherryPicks’s Methodology for Evaluating 10 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 10 GPM Tankless Water Heaters reviews based on our selection criteria. It helped us shortlist the top qualified and rated 10 GPM Tankless Water Heaters for Rough Plumbing, We found that most customers choose 10 GPM Tankless Water Heaters with an average price of $464.59, and the top brands are Generic, Kohree, EcoSmart, CAMPLUX ENJOY OUTDOOR LIFE, Rheem, GASLAND, Rinnai And Stiebel Eltron.
Then our expert-level editors reviewed all those quality items and selected the top 29 10 GPM Tankless Water Heaters for you, We have researched hundreds of sellers and picked the top sellers for Rough Plumbing, including Amazon Resale, Kohree, Megamart USA, 718 Sold It, eFaucets, Big Frog Supply, Camplux, Gasland, Amazesingh Depot, Mizudo Home Comfort Direct, Amazon.com And Columbiatradestock (S/N Info Recorded). The NEW Rinnai RX180iN Condensing Smart Sense Natur... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 43 consumers with an average rating of 4.9.
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 10 GPM Tankless Water Heaters to buy.
Harrison has got a lot of skills handling gardening tools in the past. He is currently a teacher seeking to share his knowledge in gardening and would be providing us expert reviews on the best home tools to use for gardening and lawns.