Rank Product Name Score
1 Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) – Eliminate Time for Hot Water – Shelf, Wall or Floor Mounted
BOSCH THERMOTECHNOLOGY
9.5 GET ON AMAZON
2 EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, 17 x 17 x 3.5 EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, 17 x 17 x 3.5
Ecosmart
9.4 GET ON AMAZON
3 Ecosmart ECO 8EcoSmart 8 KW Electric Tankless Water Heater, 8 KW at 240 Volts with Patented Self Modulating Technology, White Ecosmart ECO 8EcoSmart 8 KW Electric Tankless Water Heater, 8 KW at 240 Volts with Patented Self Modulating Technology, White
Ecosmart
9.1 GET ON AMAZON
4 LQWY Mini Electric Tankless Water Heater 3000W 110V Constant Temperature Instant Hot Water Heater with Remote Control Digital Display On Demand Hot Water Heater for Kitchen Bathroom Indoor LQWY Mini Electric Tankless Water Heater 3000W 110V Constant Temperature Instant Hot Water Heater with Remote Control Digital Display On Demand Hot Water Heater for Kitchen Bathroom Indoor
LQWY
9.1 GET ON AMAZON
5 Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater
Rheem
8.9 GET ON AMAZON
6 EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology
Ecosmart
8.8 GET ON AMAZON
7 JESTOP Anti-scalding Bucket Heater, Electric Immersion Water Heater with Digital LCD Thermometer, Stainless Steel Guard Submersible Heater, Rapid Heating in Minutes JESTOP Anti-scalding Bucket Heater, Electric Immersion Water Heater with Digital LCD Thermometer, Stainless Steel Guard Submersible Heater, Rapid Heating in Minutes
JESTOP
8.5 GET ON AMAZON
8 Immersion Water Heater for Boiling Bath Water,Portable Electric 304 Stainless Heater Outdoor with Guard Cover -LCD Thermometer,for MotorhomeTub Buckets ,Boils 5 Gallon Bucket of Water in Minutes (A3) Immersion Water Heater for Boiling Bath Water,Portable Electric 304 Stainless Heater Outdoor with Guard Cover -LCD Thermometer,for MotorhomeTub Buckets ,Boils 5 Gallon Bucket of Water in Minutes (A3)
Purity Pool
8.2 GET ON AMAZON
9 CAMPLUX ENJOY OUTDOOR LIFE 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater, White, (AY132) CAMPLUX ENJOY OUTDOOR LIFE 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater, White, (AY132)
CAMPLUX
8.0 GET ON AMAZON
10 CMI Portable Immersion Water Heater Bathtub Inflatable Pool Electric Fully Submersible Instant Water Heaters 1500W (Yellow) CMI Portable Immersion Water Heater Bathtub Inflatable Pool Electric Fully Submersible Instant Water Heaters 1500W (Yellow)
CMI Inc.
7.8 GET ON AMAZON

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) – Eliminate Time for Hot Water – Shelf, Wall or Floor Mounted

Bosch Electric Mini-Tank Water Heater Tronic 3000 T 4-Gallon (ES4) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted

    Features:

  • CONVENIENT HOT WATER HEATER: 4 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 13.5 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)
  • INDEPENDENT INSTALLATION: 36-37″ cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
  • FAST RECOVERY RATE: Eliminates long waits for hot water at your sink, get on demand hot water at your every need (supplies up to 2 sinks at a time)
  • EASILY MOUNTED: Can be shelf, wall or floor mounted (bracket included); simply tap into the cold water line and install the water heater directly at the sink to provide hot water

EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, 17 x 17 x 3.5

EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5 Amps with Patented Self Modulating Technology, 17 x 17 x 3.5

    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 
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used. Save up to 50% in water heating costs according to the Department of Energy
  • EcoSmart ECO 27 Sizing; Refer to the sizing map. Requires 3×40 AMP Double Pole Breaker, 27-kilowatt tankless electric water heater ideal for providing hot water for whole home applications; provides between 2.7 and 6.5 gallons-per-minute depending on the inlet water temperature; refer to the sizing guide to select the proper solution
  • Warranty and Certifications; Limited Lifetime Warranty on electronics, exchanger and element; UL-499 certified; ETL Listed

Ecosmart ECO 8EcoSmart 8 KW Electric Tankless Water Heater, 8 KW at 240 Volts with Patented Self Modulating Technology, White

Ecosmart ECO 8EcoSmart 8 KW Electric Tankless Water Heater, 8 KW at 240 Volts with Patented Self Modulating Technology, White

    Features:

  • Share the warmth with endless hot water at point-of-use
  • Heater requires 1 x 40 AMP double pole breaker (consult electrician if necessary)
  • Save Space – Compact size saves valuable storage space
  • Save Energy – Patented self-modulating technology adjusts energy based on hot water needs
  • Save Time – No venting, unit can be installed directly at the point-of-use

LQWY Mini Electric Tankless Water Heater 3000W 110V Constant Temperature Instant Hot Water Heater with Remote Control Digital Display On Demand Hot Water Heater for Kitchen Bathroom Indoor

LQWY Mini Electric Tankless Water Heater 3000W 110V Constant Temperature Instant Hot Water Heater with Remote Control Digital Display On Demand Hot Water Heater for Kitchen Bathroom Indoor

    Features:

  • INSTANT HOT WATER HEATER – Applied with 5500W heating system, the electric tankless water heater supplies instant hot water, 3 seconds to get hot water without preheating. Instant consistent and endless hot water of the maximum temperature reach to 55℃/131℉. It is perfect companion for sinks, bringing you perfect experience of comfort and relaxing.
  • REMOTE CONTROL OR TOUCH SCREEN – Ultra slim and smooth appearance design, beautiful and elegant. The temperature can be adjusted by remote control and touch control, which is more convenient to use, can avoid wet hands to adjust, and is safer; constant temperature water outlet three-level power adjustment, bid farewell to cold and hot
  • SAVE SPACE AND ENERGY – Compact design, our tankless Hot Water Heater is only the size of a small suitcase, and the wall-mount design frees up valuable floor space within your home. And tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used.
  • EASY TO INSTALL – The home water heater has a mini body, easy to install in the bathroom, kitchen, and under the sink.Standard 1/2 interface(inflow or outflow), can be directly connected to household conventional hose connectors.
  • SAFE TO USE – With high temp protection, dry heating protection, and electrical leakage protection you can rest easily knowing you have safe, on-demand hot water to use on your schedule. The electric and fluid systems are completely separated to prevent electric leakage and water pipe corrosion.

Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater

Rheem Mid-Efficiency 8.4 GPM Outdoor Liquid Propane Tankless Water Heater

    Features:

  • Exclusive Water Savings technology conserving up to 1, 100 gallons per year
  • 157, 000 BTU (gas consumed per hour)
  • Exclusive Hot Start Programming minimizes cold water burst by staying in ready-fire state
  • Recirculation pump ready kit ready.8.4 gal./min. at 35° F rise max
  • For use outdoors with freeze protection up to -30 degrees

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology

    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 11.5 x 8 x 3.75 inches
  • Save Energy; EcoSmart tankless electric water heaters are 99% thermal energy efficient; Only heats water when called unlike a tank heater that maintains water temperature even when not being used. Save up to 50% in water heating costs according to the Department of Energy
  • EcoSmart ECO 11 Sizing; Refer to Sizing Map. Requires 60 AMP Double Pole Breaker, 13-kilowatt tankless electric water heater ideal for providing hot water for a bathroom, small sink, office breakroom and other point-of-use or low-flow applications; provides between 1.3 and 3.1 gallons-per-minute depending on the inlet water temperature;  refer to the sizing guide to select the proper solution
  • Warranty and Certifications; Lifetime Warranty on electronics, exchanger and element; UL-499 certified; ETL Listed

JESTOP Anti-scalding Bucket Heater, Electric Immersion Water Heater with Digital LCD Thermometer, Stainless Steel Guard Submersible Heater, Rapid Heating in Minutes

JESTOP Anti-scalding Bucket Heater, Electric Immersion Water Heater with Digital LCD Thermometer, Stainless Steel Guard Submersible Heater, Rapid Heating in Minutes

    Features:

  • 【Heating Helper】The instant hot water heater is suitable for rapid heats water in large size container like bucket, basin, bath tub, mini inflatable swimming pool, etc. The Package includes 1 x digital thermometer, 1 x stainless steel cleaning ball, 1x water heater. It is deal gift for your friends and family during winter.
  • 【Safety & Practicality】The pool heater with stainless steel protective guard can effectively prevent the heating element from directly contacting the human body, which is more safer. Heat dissipates to the water faster by flowing through the holes in the guard. It can boil 5 gallons of water in a few minutes. Please use it strictly according to the instructions! !
  • 【Easy To Use】Fully submerge the heater in the water and connect it to a 120V power supply. Check power indicator light to make sure immersion water heater is working then it will heat water continuously. JESTOP heater is perfect for any cold weather application.
  • 【Widely Application】JESTOP Heater is small and portable. You can easy to carry it to heat your farm animals’ water, your tiling water on the job site, car wash bucket, pail of bath water in a tiny home or camper, window washing water and more!
  • 【Warning Tips】The heater must be completely immersed in water during working! Please take out the heater before touching the water! Please do not use it continuously for more than 3 hours! Please do not plug the two water heaters into the same socket to avoid fire.

Immersion Water Heater for Boiling Bath Water,Portable Electric 304 Stainless Heater Outdoor with Guard Cover -LCD Thermometer,for MotorhomeTub Buckets ,Boils 5 Gallon Bucket of Water in Minutes (A3)

Immersion Water Heater for Boiling Bath Water,Portable Electric 304 Stainless Heater Outdoor with Guard Cover -LCD Thermometer,for MotorhomeTub Buckets ,Boils 5 Gallon Bucket of Water in Minutes (A3)

    Features:

  • 🌞Good Quality Portable Water Heater: Immersion water heater runs with energy-saving .Imersion heater boils 5 gallon water in minutes . All you need to do is just put bucket heater in to the water and plug the bathtub warmer, very easy to use.
  • 🌞304 Stainless-steel Guard: The heavy duty 304 stainless-steel guard on the electric bucket heater protects the heating element from directly contacting persons or animals. The holes on the guard of submersible water heater help release heat into the water faster.
  • 🌞Easy to Use: Place water heater into water designed to contain boiling water, fill the container with water to full cover the submersible bucket heater , plug portable water heater into a properly grounded 120V AC outlet, make sure the portable immersion heater is on, make the water warmer in a few minutes!
  • 🌞Wide Application: The electric immersion heater can be used in water, fit for bucket, basin, bath tub, etc.This immersion heater is handy and super lightweight, making it warmer any grounded wall outlet. Then the 1500 immersion heater can start working.
  • 🌞Warning: The camping water heater needs to be completely immersed in water ,Please do not plug the two camping water heater into the same outlet to avoid fire hazards. Please take out the immersion water heater before touching the water!

CAMPLUX ENJOY OUTDOOR LIFE 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater, White, (AY132)

CAMPLUX ENJOY OUTDOOR LIFE 5L 1.32 GPM Outdoor Portable Propane Tankless Water Heater, White, (AY132)

    Features:

  • CSA approved portable tankless water heater for US &Canada markets. Lowest water pressure start up just need 3.0 PSI! Also works great with Camplux 12V 1.2GPM water pump.
  • The maximum temperature raise is 114.8℉(46℃) and the minimum temperature raise is 46.4℉(8℃)for 1.32GPM.
  • Its compact size with folding handle keeps it out of the way, allowing for a convenient set-up outdoors.
  • Flame failure device, anti-freezing protection and oxygen depletion safety shut-off protection.
  • 1.32 gallons per minute of hot water output, energy saving technology. You can get instant endless hot water easily wherever you are.

CMI Portable Immersion Water Heater Bathtub Inflatable Pool Electric Fully Submersible Instant Water Heaters 1500W (Yellow)

CMI Portable Immersion Water Heater Bathtub Inflatable Pool Electric Fully Submersible Instant Water Heaters 1500W (Yellow)

    Features:

  • 【Widely Used】:Our portable water heater is suitable for portable bathtub, pool heater, pond heater, water trough heater, bucket heater. Especially fit for heating water in large size container like bucket, basin, bath tub, mini inflatable swimming pool, etc.
  • 【Fast Heating】:1500W of power can make 5 gallons of water warm in a few minutes. Before inserting the heater, please make sure that the heater is completely immersed in the water then connect the 120v/110v power supply.
  • 【Easy to Use】:Place portable water heater into water designed to contain boiling water, fill the container with water to full cover the submersible bucket heater, plug portable water heater into a properly grounded 120V AC outlet, make sure the portable immersion heater is on, make the pool warmer in a few minutes!
  • 【Warning】:The portable water heater needs to be completely immersed in water, please do not plug the two camping water heater into the same outlet to avoid fire hazards. Please take out the immersion water heater before touching the water! Do not use it for more than 3 hours continuously!
  • 【Thermostat and Auto Shut off】:The middle stainless steel tube contains a thermal overload safety switch, when water reaches a certain temperature, immersion heater for water can automatically cycle on and off to maintain water temperature. It will not overheating and save power. Dry burning will auto shut off power to avoid catching fire.

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