Top 28 Compact Water Heaters on Amazon (Verified You can Buy)
Rheem 3.5kW 120V Point of Use Thermostatic Tankless Electric Water Heater
Rheem
RTEX-04T
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 |
|---|---|---|---|---|
| Eagle Point [S/N Recorded] | - | ❌ | ❌ | ❌ |
| Profitwise Brands | - | ❌ | ❌ | ❌ |
| eFaucets | 9,801 | ❌ | ❌ | ❌ |
| 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 2
Best Water Heaters
Best for Electric
Best for Mini
Best for Thermostat
Best for Under Sink
Best for 120 Volt
Best for 20 Gallon
Best for 50 Gallon
Best for 100 Gallon
110V-120V 1.5Kw Electric Tank Hot 2.5 Gallon Water Heater Storage，Small Under Sink Counter RV TR Endless Trailer Kitchen Compact Point-of-Use,2 PCs 16” Long 1/2”FIP Stainless Steel Water Hoses 9.5L
BISELONG
BI-2.5
11.2 x 11.2 x 11.8 inches
9.5 Pounds
Ratings for BISELONG (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| BISELONG | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ✅ | ✅ | ✅ |
Features
【SAFE DURABLE & LONGEVITY】Made of stainless steel and never rust，Anti-leakage plug，Multiple safety protection functions protect you from the risk of scald, leakage or other injury.Premium plastic shell is corrosion resistant，This mini hot water heater is ideal for kitchen, bar, school, hospital, community and RV.
【SMART INVERTER FOR ENERGY SAVING】Automatic heat preservation and storage of hot water, 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%，Maximum temperature149℉，The built-in smart chip heats up to the temperature you set, and automatically Insulation when heated to the specified temperature.
Top 3
Best for Rheem
Best for Inline
Best for Tanked
Best for Electric
Best Tankless Water Heaters
Best for CAMPLUX
Rheem 11kW 240V Tankless Electric Water Heater
Rheem
RTEX-11
12.63 x 8.25 x 3.63 inches
7.0548 pounds
99.8%
Ratings for Rheem (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Plumber's Paradise | - | ✅ | ✅ | ✅ |
| CASA CAYOS | - | ✅ | ✅ | ✅ |
| AXY Co | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
ON/OFF Dial Control with adjustable digital temperature display
Self-modulating power control
Top 4
Best for Digital
Best for 10 Gallon
Best for 60 Gallon
Best for 100 Gallon
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 2 GPM
Tankless Water Heater Electric, 3000W Tankless Electric Water Heater 110V, On Demand Hot Water Heater Electric with Digital Display, Electric Tankless Hot Water Heater for Kitchen Bathroom Washin
xwdzswgs
Water Heater Electric
4.31 x 4.31 x 7.85 inches
Ratings for xwdzswgs (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| liuyiliang7788 | - | ❌ | ❌ | ❌ |
Features
Electric Tankless Water Heater - This instant water heater is equipped with state-of-the-art technology, with 3000W power, LED display. The electric water heater tankless can raise the water by 82° F(0.3GPM) -131° F(0.5GPM) in seconds. The instant hot water heater can set Fahrenheit or Celsius degrees by holding the power button for 6 seconds. Water heater compatible with the US standard 110 volts.
Safety Intelligence Reliable - This on demand water heater has multiple protection features. IPX4 waterproof, leakage protection, dry-burning protection, automatic power-off in over-temperature and inactive states. The thermal efficiency of tankless hot water heater is as high as 98%. Tankless hot water heater electric with LCD digital display, intelligent detection of working status, and performance to ensure safety.
Top 5
Best Water Heaters
Best for Inline
Best for Digital
Best for Under Sink
Best for Wall
Best for 10 Gallon
Best for 60 Gallon
Best for 100 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 9 GPM
Best for 10 GPM
Best for 11 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.
Top 6
Best for CAMPLUX
Best for Inline
Best for Gas Powered
Best for Battery
Best for LP
Best for Propane Liquid
Best for Outdoor
Best for Propane
Best Gas Water Heaters
Best for 80 Gallon
Best for Tankless
Best for Noritz
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
Best for 2 GPM
Best for 3 GPM
Best for 4 GPM
Best for 5 GPM
Best for 7 GPM
Best for 8 GPM
Best for 9 GPM
Best for 10 GPM
Best for 11 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 7
Best for Tanked
Best for LP
Best for Mini
Best for Wall
Best for Boiler
Best for 60 Gallon
Best for 100 Gallon
VEVOR Electric Mini-Tank Water Heater 4-Gallon Tank, 1440W Hot Water Boiler Storage, Safety Temperature Pressure Valve Easy Install, for Kichen Bathroom Restaurant, Shelf Wall Mounted
VEVOR
D15-14VA(M,S)
15.7 x 15.7 x 12.5 inches
21.34 Pounds
Ratings for VEVOR (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| VEVOR Shop | - | ❌ | ❌ | ❌ |
| Amazon.com | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
Stainless Steel Water Heater: With a power of 1440W, the 310S stainless steel heater can continuously deliver hot water for 24 hours. It heats up the water to the desired temperature within just 8 to 15 minutes of use, reaching a maximum of 145℉ / 62.8°C. Additionally, the corrosion-resistant inner tank and integrated polyurethane insulation layer ensure long-lasting warmth retention and durability without any leaks.
Temperature Pressure Safety Valve: This compact tank comes equipped with a temperature pressure safety valve, significantly enhancing its safety during use. You can use it with peace of mind, as it, along with other safety features, protects you from risks such as scalding, leaks, or other injuries, ensuring a reliable water usage experience throughout the day.
Top 8
Best for CAMPLUX
Best for Inline
Best for Tanked
Best for Electric
Best for Under Sink
Best for 30 Gallon
Best for Takagi
Best for Rheem
Best for CAMPLUX
Best for 5 GPM
Best for 7 GPM
Best for 10 GPM
CAMPLUX Tankless Water Heater Electric 6kW at 240 Volts, Point of Use Instant Hot Water Heater CSA Approved with Temperature Display, Under Sink Self Modulating Technology, White
CAMPLUX ENJOY OUTDOOR LIFE
TE06Pro
7.0 x 7.0 x 10.0 inches
3.9 Pounds
High Efficiency
Ratings for CAMPLUX ENJOY OUTDOOR LIFE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Camplux | - | ❌ | ❌ | ❌ |
Features
【Consistent Hot Water】The under-sink water heater only heats the water when you need it and no waiting to preheat, saving up to 50% in energy consumption. The temperature rise of 1.0 GPM is 50°F. Easy to get hot water between 85°F - 131°F in two seconds
【Energy Efficient & Cost Saving】With self-modulating technology, this tankless water heater adjusts power usage based on your water flow needs, saving up to 60% on energy costs compared to traditional water heaters. Saving up to 99.8% in energy consumption
thermomate Mini Tank Electric Water Heater ES250 2.5 Gallons Point of Use No Wait for Hot Water Under Kitchen Sink 120V 1440W, Wall or Floor Mounted, UL Listed
thermomate
ES
12.95 x 12.95 x 16.49 Inches
15.4 pounds
99%
Ratings for thermomate (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| thermoflow | - | ✅ | ✅ | ✅ |
| THMOS | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
| ThermoMate Official | - | ❌ | ❌ | ❌ |
Features
【No More Wait for Hot Water】- Point of use 2.5 gallons mini tank water heater provides instant hot water where you need it with fast recovery, reducing standby loss. Adjustable temperature range from 50°F to 149°F
【Easy Installations】- Dimensions 12.95"W x 12.95"H(16.49" with valve) x 11.5"D compact design, can be wall or floor mounted under sink / counter, plug into a standard 120V outlet.
Top 10
Best Water Heaters & Parts
Best for EcoSmart
Best for Inline
Best for Tanked
Best for Electric
Best for Whole House
Best for Wall
Best Tankless Water Heaters
Best for 15 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
Ratings for EcoSmart (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| 718 Sold It | 7,535 | ✅ | ✅ | ✅ |
| 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 11
Best for Tanked
Best for Electric
Best for Battery
Best for NG
Best for Mini
Best for Timer
Best for Under Sink
Best for Wall
Best for Residential
Best for 120 Volt
Best for Boiler
Best for 60 Gallon
Best for 10 Gallon
Best for 20 Gallon
Best for 30 Gallon
Best for 40 Gallon
Best for 50 Gallon
Best for 60 Gallon
Best for 100 Gallon
Best for Takagi
Best for FOGATTI
Best for AO Smith
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
Bosch
ES 2.5-1M WIR S3100
13.75 x 10.75 x 13.75 Inches
15.5 pounds
98%
Ratings for Bosch (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon.com | - | ✅ | ✅ | ✅ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
CONVENIENT HOT WATER HEATER: 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 10.75 D Inches
LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
Top 12
Best Water Heaters
Best for Tanked
Best for Mini
Best for Under Sink
Best for 120 Volt
Best for 60 Gallon
KENUOS Under Sink Instant Hot Water Heater,2.5 Gallon Mini Tank Water Heaters with LED Display,1500W 120V Small Water Heater 1/2" NPT for RV,Kitchen,Compact Design with T&P Valve,3-Way Fitting Valve
KENUOS
WTank25DI
11.4 x 11.4 x 11.4 inches
8.0 Pounds
Ratings for KENUOS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon Resale | - | ❌ | ❌ | ❌ |
| KENUOS-US | - | ❌ | ❌ | ❌ |
Features
Upgraded mini tank Water Heater Design-Our 2.5 gallon water heater has increased tank thickness to 0.04" to extend lifespan. it is equipped with LED temperature display, Keeping you informed of the current real-time temperature at any time.The new T&P valve protects the water heater when the internal pressure and temperature are too high, and the 3-way water diverter valve can supply water to two sinks, making it more convenient for you to get hot water
Rapid Heating and Recovery-Our small hot water heater has a heating power of 1500 watts, supporting fast heating. The improved L-shaped heating tube increases the heating area of the water and the heating efficiency. The heating time is shortened to 4 to 6 minutes, so you don't have to wait for a long time
Top 13
ThermoMate Mini Tank Water Heater Electric, 4 Gallons Small Under Sink Water Heater for Point of Use Instant Hot Water 110V 120V, Wall or Floor Mounted, UL Listed ES400
thermomate
ES
14.5 x 12.9 x 18.04 inches
19.8 Pounds
Ratings for thermomate (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| ThermoMate Official | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
【No Wait for Hot Water】- Point of use 4 gallons mini tank water heater provides instant hot water where you need it with fast recovery, reducing standby loss.Adjustable temperature range from 50°F to 149°F
【Small Compact for Sink】- The hot water heater is compact designed for your sink with dimensions 14.5" x 14.5" x 12.9", can be wall or floor mounted under sink / counter, plug into a standard 120V outlet. Nominal current 12amps
Top 14
Best for Digital
APUS Tankless Water Heater Electric 240V, 4500W Instant On Demand Hot Water Heaters, Under Sink Point of Use Water Heater, LED Digital Display, Ultra Compact for Kitchen, Bathroom, Laundry,Black
APUS
AP-ADSF-45M06
6.5 x 6.5 x 8.66 inches
3.53 pounds
99.8%
Ratings for APUS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| APUS WATER EQUIPMENT | - | ❌ | ❌ | ❌ |
Features
Instant Endless Hot Water: APUS 4.5KW, 220-240V tankless electric water heater delivers hot water in 3 seconds—no preheating or waiting! With a temperature range of 85°F–131°F, enjoy consistent, on-demand hot water for sinks, kitchens. Perfect for single-point use, it eliminates standby energy loss and wasteful tank storage
Smart Energy Efficiency: Our self-modulating technology adjusts power (99.8% efficiency) based on water flow and temperature, reducing energy waste. Unlike traditional heaters, APUS only heats water when needed, saving up to 50% on electricity bills—no more paying to keep a tank warm
Top 15
NOLITOY Instant Tankless Electric Water Heater Small Mini Portable with LCD Display Constant Temperature Water-electricity Separation Safety for Camping Boats RVs and Home Use North
NOLITOY
SN1I35E06S20R
6.69 x 6.69 x 2.76 inches
2.23 Pounds
Ratings for NOLITOY (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Jagogh Yson | - | ❌ | ❌ | ❌ |
Features
Instant Hot Water Supply: This tankless water heater provides immediate access to hot water eliminating wait times and ensuring a comfortable shower experience in homes schools rvs and more
Compact and Sleek Design: Featuring an ultra-thin profile measuring 6.69 by 5.11 by 2.75 inches this instantaneous water heater integrates seamlessly into any space with its smooth and elegant appearance
FOGATTI Propane Gas Tankless Water Heater Indoor - Max 7.5 GPM 170,000 BTU, CSA Certified Compact Design On Demand Instant Hot Water Heater - Instagas Comfort 170S Series
FOGATTI
InstaGas Comfort
16.3 x 16.3 x 25.0 Inches
0.81
Ratings for FOGATTI (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Westinghouse Home Comfort Direct | - | ❌ | ❌ | ❌ |
Features
Powerhouse Performance: The FOGATTI tankless water heater takes up a third of the space of traditional tank heaters but delivers 5 times the performance. With a high heating power of 170,000 BTU and a flow rate of 7.5 GPM, it provides endless hot water on demand, perfect for multitasking households
Instant Heating: Unlike traditional tank heaters, this tankless water heater propane delivers instant and endless hot water as water flows through. Whether it’s for showers, sinks, or appliances, even for 3-5 outlet points, it ensures uninterrupted hot water whenever you need it
Top 17
Best Water Heaters
Best for Digital
Best for Mini
Best for Under Sink
Best for 10 Gallon
Best for 100 Gallon
Best for Takagi
Best for Noritz
Best for FOGATTI
Best for GASLAND
Best for Eccotemp
Best for AO Smith
NVRZQWD Tankless Water Heater Electric 110V, 3000W Under Sink Instant On Demand Hot Water Heater, Portable Mini Water Heaters with Digital Display for Kitchen Bathroom RV
NVRZQWD
ND-WH-001
4.5 x 4.5 x 8.8 inches
Ratings for NVRZQWD (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Shenzhen Chaoyi Kejiyouxiangongsi | - | ❌ | ❌ | ❌ |
Features
【INSTANT HOT WATER HEATER】With NVRZQWD Mini tankless water heater electric 110v, you will say goodbye to long waiting time for hot water, this 110 volt water heater electric uses advanced technology to heat water to 82°F (0.3 GPM) - 131°F (0.5 GPM) in seconds, no need to preheat, eliminating the long waiting time for hot water by the sink!
【COMPACT PORTABLE DESIGN】This small water heater electric has a compact design, perfect for spaces such as kitchens, RVs and camping. The Larger the water flow, the lower the outlet temperature; The smaller the water flow, the higher the outlet temperature. This on demand water heater is wall-mounted, freeing up valuable space in your home so you can enjoy hot water whenever and wherever you need it. Point of use water heater produces comfortable water temperatures for washing food, dishes, clothes, faces, hands and more.
Top 18
Feelrogast Electric Mini Tank Water Heater-2.5 Gallon Under Sink Instant Hot Water for RV, Camper, Kitchen, Food Truck, 120V 1500W, Wall or Floor Mounted
Feelrogast
WHB-GY025
13.7795 x 13.7795 x 16.1417 Inches
Ratings for Feelrogast (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Feelrogast Official | - | ❌ | ❌ | ❌ |
| Amazon Resale | - | ❌ | ❌ | ❌ |
Features
[Instant Hot Water & Rapid Reheat] Feelrogast electric mini tank water heater rapidly heats water, minimizing your wait time and efficiently meeting your hot water needs. The 316 stainless steel heating element achieves up to 99% heat utilization. Temperature is adjustable from 86-167°F for simple, convenient operation.
[High quality and durability] This product is CE, ROHS, and FCC certified, ensuring safety and reliability. The 1.88mm thick stainless steel tank is pressure-resistant and explosion-proof, with a 500-800μm enameled layer using a unique double process to prevent cracking, rusting, and leaks, for long-lasting performance.
KENUOS Electric Tankless Water Heater 110V 3000W,Point Of Use Instant Hot Water Heater with Digital Display & Remote Control Fast Heating Compact Under Sink Water Heater for Kitchen,Bathroom
KENUOS
3000w tankless water heater
8.3 x 8.3 x 5.9 inches
Ratings for KENUOS (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| KENUOS-US | - | ❌ | ❌ | ❌ |
Features
10 Second Instant Hot Water Heater - KENUOS tankless water heater heats up instantly without preheating or waiting,delivers stable hot water anytime for point-of-use needs.Temperature ranges from 95°F to 131°F, meeting daily hot water demands like hand washing,vegetable washing and dish washing,getting rid of cold water discomfort
Dual Mode Control - KENUOS 110V electric tankless water heater supports both remote control and touch screen operation. It is safer to use even with wet hands, allowing you to get hot water more conveniently
ThermoMate Tank Water Heater Electric, 6 Gallon Small Point of Use Residential Hot Water Heater, 1500W 120Volt Compact, Adjustable Thermostat, UL Listed (ES600)
thermomate
ES600
14.75 x 14.75 x 16.14 inches
26.0 pounds
Energy-efficient
Ratings for thermomate (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| ThermoMate Official | - | ❌ | ❌ | ❌ |
Features
【6 Gallons point of use】mini tank water heater provides instant hot water where you need it with fast recovery, reducing standby loss. Hard-wired installation required (power cord included for optional installation); Built-in thermostat for adjusting temperature between 90°F and 150°F
【16inch low profile】 14.75x16.14” compact small water heater (120 Volt Hard Wired), independent installation or as booster in-line with a large hot water source, ideal for kitchen & bathroom sink, RV & boat, vacation cabin & camper, garage & barn, shop & salon
Top 21
Best for Digital
Best for Under Sink
Best for Residential
Best for 120 Volt
Best for Boiler
Best for 20 Gallon
Best for FOGATTI
Tankless Water Heater Electric 110V, 3000W Instant Water Heater Under Sink, On Demand Hot Water Heater Electric with Digital Display, Portable Mini Small Water Heater for Kitchen Bathroom RV
AIYEZIDT
Instant Water Heater
4.53 x 4.53 x 8.87 inches
Ratings for AIYEZIDT (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| LJIAW | - | ❌ | ❌ | ❌ |
Features
【INSTANT HOT WATER HEATER】With AIYEZIDT Mini tankless water heater electric 110v, you will say goodbye to long waiting time for hot water, this 110 volt water heater electric uses advanced technology to get hot water in 3 -5 seconds, no need to preheat, eliminating the long waiting time for hot water by the sink! Electric tankless water heater can reach a maximum temperature of 55°C/131°F, instant hot water is always available.
【COMPACT PORTABLE DESIGN】This small water heater electric has a compact design, perfect for spaces such as kitchens, apartments, bathrooms, RVs and camping. This on demand water heater is wall-mounted, freeing up valuable space in your home so you can enjoy hot water whenever and wherever you need it. Point of use water heater produces comfortable water temperatures for washing food, dishes, clothes, faces, hands and more.
Top 22
Best for Under Sink
Gen II Vancepic 2.5-Gallon Electric Mini-Tank Water Heater, 120V, 1440W Instant Hot Water for Point-of-Use, Quick and Easy Installation, Compact Under-Sink or RV Design, Floor Mounting
VancEpic
RC25G-E
9.84 x 9.84 x 13.78 Inches
8.6 Pounds
Ratings for VancEpic (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| VancEpic WarmHome Mall | - | ❌ | ❌ | ❌ |
Features
Efficient Rapid Heating Technology: Equipped with a 1440W molybdenum-gold heating rod, this water heater delivers an exceptional 99% thermal efficiency, enabling swift hot water delivery and rapid temperature recovery. The adjustable temperature range spans from 86°F to 167°F for precise control.
Space-Optimized Modern Design: Featuring a sleek, compact design (10"x10"x14"), this tankless unit is engineered for seamless integration under sinks or within cabinetry. It offers superior space efficiency compared to traditional tank heaters. 𝐖𝐚𝐫𝐧𝐢𝐧𝐠: Please reserve enough installation space — at least 2 inches on both sides and 5 inches on the top for safe and easy installation.
Top 23
Best for Boiler
Immersion Heater, Immersion Water Heater 120V-300W, 240V-600W, Instant Immersion Cup Mug Heater Fit Camping Traveling Coffee/Tea/Soup Electric Water Portable Reheater
Raneped
Water 001
1.0 x 1.0 x 1.0 Inches
Ratings for Raneped (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Otto-Pro | - | ❌ | ❌ | ❌ |
Features
DUAL VOLTAGE CAPABILITY:Immersion heater quickly heat up water, coffee, milk, tea, or any other drink. Immersion heaters ideal for home, garden, office or travel. portable water heater comes with a travel adapter making it easy for international travelers.
PORTABLE DESIGN: Compact and lightweight construction perfect for travel, allowing you to heat water wherever you go
CAMPLUX Electric Hot Water Heater 6 Gallons, 120-Volt Corded 1440W Point of Use Mini-Tank Electric Water Heater, Wall or Floor Mounted, UL Listed ME60
CAMPLUX ENJOY OUTDOOR LIFE
ME60
15.75 x 15.75 x 18.0 inches
25.4 pounds
Ratings for CAMPLUX ENJOY OUTDOOR LIFE (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Camplux | - | ❌ | ❌ | ❌ |
Features
Saving Energy & Money - Built-in insulation foam reduces heat loss. A 6-gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it
High Quality Built & Elegant Design - CAMPLUX electric water heater has a glass-lined tank for long service life and is easy to maintain. The elegant streamlined design cover makes your kitchen pretty
Top 25
Best Water Heaters
Best for Inline
Best for Electric
Best for NG
Best for Digital
Best for Mini
Best for Outdoor
Best for Thermostat
Best for Remote Control
Best for Waterproof
Best for Indoor
Best for Under Sink
Best for Residential
Best for 120 Volt
Best for Boiler
Best for 10 Gallon
Best for 100 Gallon
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 9 GPM
Best for 10 GPM
Best for 11 GPM
Tankless Water Heater Electric 110V, 3000W Instant Electric Water Heater, Under Sink Water Heater with Digital Display, On Demand Hot Water heater Electric for Kitchen Bathroom Washin
xwdzswgs
Water Heater Electric
4.32 x 4.32 x 7.86 inches
Ratings for xwdzswgs (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| liuyiliang7788 | - | ❌ | ❌ | ❌ |
Features
✔ ELECTRIC TANKLESS WATER HEATER - This tankless electric water heater is made of high-quality ABS material, with LED display. With 3000W power, the mini water heater can raise the water by 82° F(0.3GPM) -131° F(0.5GPM) in seconds, providing tankless instant, continuous hot water without waiting for preheating, meeting daily hot water needs. The on demand water heater can set Fahrenheit or Celsius degrees by holding a power button for 6 seconds.
✔ COMPACT AND EFFICIENT DESIGN - The electric water heater tankless adopts an ultra-thin and smooth appearance design, which is beautiful and elegant. The point of use water heater can meet your outlet temperature requirement. The Larger the water flow, the lower the outlet temperature; The smaller the water flow, the higher the outlet temperature. Not Suitable for Shower(Shower normally requires at least 1.8 GPM). Under sink water heater 110v plug in.
Top 26
Electric Tankless Water Heater SIVUATEK 24kW, 240V - On-Demand Hot Water for Whole House - ETL Certified, Self Modulating - Compact Design for Easy Installation - for 4 Point of Use Hot Water
SIVUATEK
V7B-240B
12.2 x 12.2 x 17.25 inches
20.0 Pounds
99.8%
Ratings for SIVUATEK (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| SIVUATEK-US | - | ❌ | ❌ | ❌ |
Features
【Electric Tankless Water Heater】The V7B-240B is compact design for point of use anywhere, in the meanwhile it is able to provide luxury hot water with its powerful 24kW heating system. It is great idea to install this tankless water heater electric a few ft away from shower tub or washing machine, to get sufficient hot water of higher than 120℉ in seconds.
【Smart Tankless Water Heater】Tankless water heater electric V7B-240B wastes no energy for preheating like tank water heater, instead, this instant water heater adjusts power input based on real time flow rate and temp setting, thus, no fluctuation out of it even when flowrate changes, which commits comfortable experience, safety and optimal energy efficiency of 99.8%, saving up to 50% on water heating cost.
Top 27
2.5 Gallon Hot Water Heater Electric - Compact Under Sink Instant Portable Mini Small Tank Hot Water with LED Display for Point of Use, RV Camper Kitchen, 110V/120 volt, 1440W, Wall or Floor Mounted
USATON
DC-SA+2.5G
13.4 x 13.4 x 13.4 Inches
19.0 Pounds
Highly Efficient
Ratings for USATON (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| Amazon Resale | - | ❌ | ❌ | ❌ |
| Usaton | - | ❌ | ❌ | ❌ |
Features
Instant Hot Water & Rapid Reheat - Usaton electric mini tank water heater rapidly heats water, minimizing your wait time and efficiently meeting your hot water needs. The 316 stainless steel heating element achieves up to high heat utilization, maximizing energy and power savings. meeting your demand for a fast water heating solution
Temperature Control & LED Display - You only need to rotate the knob on the electric water heater panel according to your needs. Our under sink hot water heater electric has a temperature adjustment range of 65 'F -161 'F. It is equipped with LED temperature display. Keeping you informed of the current real-time temperature at any time
Tankless Water Heater Electric 110V, 3000W Under Sink Instant On Demand Hot Water Heater, Portable Mini Water Heaters with Digital Display for Kitchen Bathroom RV
DOYXC
3000W Instant Hot Water Heater
4.53 x 4.53 x 8.87 inches
Ratings for DOYXC (CPR Score)
| Seller | CPR Rank | Amazon Fulfilled | Prime | Free Shipping |
|---|---|---|---|---|
| DOYXC store | - | ❌ | ❌ | ❌ |
Features
[INSTANT HOT WATER HEATER]With DOYXC Mini tankless water heater electric 110v, you will say goodbye to long waiting time for hot water, this 110 volt water heater electric uses advanced technology to heat water to 82°F (0.3 GPM) - 131°F (0.5 GPM) in seconds, no need to preheat, eliminating the long waiting time for hot water by the sink!
[Compact and Portable Design] This small electric water heater features a compact design, making it ideal for use in kitchens, motorhomes, and camping spaces. The greater the water flow, the lower the water temperature; the lower the water flow, the higher the water temperature. This on-demand water heater can be wall-mounted, freeing up valuable space in your home and allowing you to enjoy hot water anytime, anywhere.
Top 10 Compact Water Heaters - Verified to Buy (August 2026)
- 1. Rheem 3.5kW 120V Point of Use Thermostatic Tankless Electric Water...
- 2. 110V-120V 1.5Kw Electric Tank Hot 2.5 Gallon Water Heater Storage，Small...
- 3. Rheem 11kW 240V Tankless Electric Water Heater
- 4. Tankless Water Heater Electric, 3000W Tankless Electric Water Heater 110V,...
- 5. 110V Tankless Water Heater Electric, 3000W Tankless Electric Water Heater...
- 6. Camplux Tankless Water Heater, 1.32 GPM Portable Propane Outdoor Camping...
- 7. VEVOR Electric Mini-Tank Water Heater 4-Gallon Tank, 1440W Hot Water...
- 8. CAMPLUX Tankless Water Heater Electric 6kW at 240 Volts, Point...
- 9. thermomate Mini Tank Electric Water Heater ES250 2.5 Gallons Point...
- 10. EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240...
Top 10 Compact Water Heaters Brands on Amazon
Here is the list of top-rated brands that were evaluated by CherryPicks.
- Rheem
- BISELONG
- xwdzswgs
- CAMPLUX ENJOY OUTDOOR LIFE
- VEVOR
- thermomate
- EcoSmart
- Bosch
- KENUOS
- APUS
Related Compact Water Heaters Guides
For more personalized Compact Water Heaters guides, Check those pages,
Features
Top 10 Compact 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. 718 Sold It : 8,958 Yearly Feedback , Avg. Ratings 4.8
- 2. eFaucets : 6,874 Yearly Feedback , Avg. Ratings 4.4
- 3. VEVOR Shop : 3,201 Yearly Feedback , Avg. Ratings 4.1
- 4. Camplux : 2,703 Yearly Feedback , Avg. Ratings 4.7
- 5. Plumber's Paradise : 2,199 Yearly Feedback , Avg. Ratings 4.8
- 6. Jagogh Yson : 1,742 Yearly Feedback , Avg. Ratings 4.7
- 7. Amazon.com : 386 Yearly Feedback , Avg. Ratings 4.7
- 8. ThermoMate Official : 362 Yearly Feedback , Avg. Ratings 4.7
- 9. thermoflow : 303 Yearly Feedback , Avg. Ratings 4.7
- 10. Westinghouse Home Comfort Direct : 255 Yearly Feedback , Avg. Ratings 4.8
| Rank | Name | Yearly Feedbacks | Avg. Ratings |
|---|---|---|---|
| 🥇 | 718 Sold It | 8,958 | 4.8 |
| 🥈 | eFaucets | 6,874 | 4.4 |
| 🥉 | VEVOR Shop | 3,201 | 4.1 |
| 4 | Camplux | 2,703 | 4.7 |
| 5 | Plumber's Paradise | 2,199 | 4.8 |
| 6 | Jagogh Yson | 1,742 | 4.7 |
| 7 | Amazon.com | 386 | 4.7 |
| 8 | ThermoMate Official | 362 | 4.7 |
| 9 | thermoflow | 303 | 4.7 |
| 10 | Westinghouse Home Comfort Direct | 255 | 4.8 |
[Get] Compact Water Heaters Deals (✅Exclusively for Prime)
What does "Amazon Fulfilled" Mean?
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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 Compact 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 Compact Water Heaters to buy for new August 2026?
CherryPicks’s Methodology for Evaluating Compact 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 Compact Water Heaters reviews based on our selection criteria. It helped us shortlist the top qualified and rated Compact Water Heaters for Rough Plumbing, We found that most customers choose Compact Water Heaters with an average price of $166.45, and the top brands are VEVOR, EcoSmart, CAMPLUX ENJOY OUTDOOR LIFE, Rheem, thermomate, FOGATTI And NOLITOY.
Then our expert-level editors reviewed all those quality items and selected the top 28 Compact Water Heaters for you, We have researched hundreds of sellers and picked the top sellers for Rough Plumbing, including Amazon Resale, 718 Sold It, eFaucets, VEVOR Shop, Camplux, Plumber's Paradise, Jagogh Yson, Amazon.com, ThermoMate Official, thermoflow, Westinghouse Home Comfort Direct And AXY Co. The Rheem 3.5kW 120V Point of Use Thermostatic Tank... are available for purchase right now, and The seller of #1 rank product has received honest feedback from 4,001 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 Compact Water Heaters to buy.
Hunter Lambrick is a contributing writer on the Cherrypicksreview platform who specializes in writing articles on outdoor events and home tool products. He has been doing this for a while now and has developed a wealth of experience in it.