Water Heaters & Parts

45 Best small water heater 2022 – After 171 hours of research and testing.

Written by Alex Rowe

Now that you are here, you must be looking for the best small water heater! If you aren’t for it, you shall use our search and look for the topic you are interested in. As this piece is a lengthy one and covers a few more aspects other than the best list, they are the best small water heater brands in United States of America and a buyer’s guide for making an informed buying decision.

Before we begin with the list, We ask you to make a list of things that you are looking for in a small water heater. It could be anything which you’ll require when doing tasks. This will help you have some clarity about the important things and will help you save money by not overspending on the features you won’t use or a product that has more features!

You surely are here for being able to make an informed buying decision when it comes to small water heater and you must be looking for the list, We know that! But before we begin, we’d like to tell you that, this is the most unbiased list ever, it has specs, lists down the features of the small water heater, best brands and has a dedicated buyer’s guide for people in United States of America.

Full Disclosure: This article might have a few external links to Amazon and other informative sources. When you make a purchase on Amazon using our link, we’ll earn a small fee without you having to pay extra for the item. This helps us keep the site running and publishing more awesome content, add more research and never let people buy bad-quality products!

Best small water heater in 2021

1. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) – Eliminate Time for Hot Water – Shelf, Wall or Floor Mounted -Tools & Home Improvement

By BOSCH

  • Thermal efficiency is 98%
  • 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)
  • 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)
  • Dimensions : 13.75 W x 13.75 H x 10.75 D Inches
  • 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
  • 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
  • INDEPENDENT INSTALLATION: 36-37″ cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source

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

By BOSCH

  • INDEPENDENT INSTALLATION: 36-37″ cord plugs into a 120 volt outlet for independent installation or in-line with a large hot water source
  • 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
  • Thermal efficiency is 98%
  • (Amps 12A, Volts (VAC) 120)
  • 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)
  • CONVENIENT HOT WATER HEATER: 4 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it
  • 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

4. Stiebel Eltron 233219 2.5 gallon, 1300W, 120V SHC 2.5 Mini-Tank Electric Water Heater -Tools & Home Improvement

By Stiebel Eltron

  • T and P valve included
  • 6-Year warranty on tank
  • Plugs into standard 120 volt outlet
  • Wall-mounted with included bracket
  • Glass-lined tank and fast recovery

5. Electric Hot Water Heater 110-120V Small Compact Tank Storage,Rv Tr 2.5-3.0 Gallon Trailer , 1.5KW Kitchen Instant Under Sink Counter Cupboard, RV 1 PCs 16” Long 1/2”FIP Stainless Steel Water Hose -Tools & Home Improvement

By Agust

  • EASY TO USEstorage tank electric water heater with easy-to-operate knob temperature adjustment design,Easy to control warmth.Vent valve, Tee pipeline, pipes and other accessories are complete for quick installation without additional expenses or preparing time of accessories.
  • COMPACT DESIGNCan be shelf, wall or floor mounted (Water inlet and outlet upward); Dimensions: 18.0”L x12.6”W x10.2”H; 8.86lbs; 1/2″NPT NPT
  • Thermal efficiency is 98%,Maximum temperature167℉,The built-in smart chip heats up to the temperature you set, and automatically Insulation when heated to the specified temperature.
  • FAST RECOVERY RATEEliminates 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,8-15 minutes to heat to your desired temperature).
  • SAFE DURABLE & LONGEVITY304 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 SAVINGDigital Display,Automatic heat preservation and storage of hot water, 3.0 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it
  • 1.5 kW, 110-120 volts
  • One-year warranty and 24H customer service support, feel free to contact us.

6. Eemax EEM24013 Electric Tankless Water Heater, Blue -Tools & Home Improvement

By Eemax

  • Tank less water heaters provide a continuous Supply of hot water and only heats the water you need, when you need it
  • The most advanced, self-modulating technology available, meaning the unit will adjust how much energy needs to be input based on how much hot water is needed
  • Compact size saves valuable storage space
  • Instant, consistent and endless hot water
  • Before purchase and installation, Please verify that this EEM24013 is the correct size for your hot water needs

7. funwill 13 Gallon Electric Water Heater Hot Water Tank (Shipping from USA) -Water Heaters

By funwill

  • ENERGY SAVING – Thickening of the overall polyurethance foam: good temperature control effect and energy and power saving
  • FULL AUTOMATIC CONTROL- Automatically adding cold water, automatically heating and automatic temperature control
  • SAFE- Four safety protections: multiple safety protection devices for boil dry protection over-temperature protection, electric leakage protection and high hydraulic pressure protection to ensure safety and reliability
  • Liner anode protector is mounted at sewage outfall to facilitate checking and replacing anode protection materials
  • FASHIONABLE AND SMALL COMPACT- Simple appearance and firm structure,Ceramic liner, anti-rust, anti-corrosion, anti-scale, anti-leakage to extend service life.
  • SPECIAL PURPOSE SEWAGE OUTFALL- Simple liner cleaning, time-saving and labour-saving

8. Rinnai V75eN Natural Gas Tankless Hot Water Heater, 7.5 GPM -Tools & Home Improvement

By Rinnai

  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: High-performance up to 7.5 GPM hot water flow rate for a powerful, constant stream

9. Ecosmart ECO 36 36kw 240V Electric Tankless Water Heater -Tools & Home Improvement

By EcoSmart

  • 150 A
  • Sleek and compact design with digital output temperature display
  • Manufactured in United States
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Required Breaker:4 x 40 A
  • Pipe Fittings:3/4 inch NPT

10. Ariston Andris 4 Gallon 6 Year 120-Volt Corded Point of Use Mini-Tank Electric Water Heater -Tools & Home Improvement

By Ariston

  • Easy installation; installs right at the point of use with water connection and standard 110/120 Volt outlet
  • 6-year limited warranty on tank, 2-year warranty on parts
  • Compact design; wall or floor mounted (wall bracket included)
  • Provide immediate hot water at the point of use; install as booster or standalone
  • TitanShield exclusive technology that fully protects inner surface against corrosion; robust environmentally safe insulation increases energy efficiency

11. Camplux ME25 Mini Tank Electric Water Heater 2.5-Gallon with Cord Plug,1.5kW at 120 Volts -Tools & Home Improvement

By CAMPLUX ENJOY OUTDOOR LIFE

  • UL Approval Safety – Thermostat Control allows adjustment of water temperature
  • water pressure is 150 PSI, CSA listed Temperature & Pressure relief valve included)
  • Saving Energy & Money – Built in insulation foam, reduces heat loss
  • Product dimension:11.75″ W x 17.25″ H x 10.38″ D.
  • High Limit device provide protection while overheating.
  • 43.3‘’ cord plugs into 120 volt outlet for independent installation or in-line with a large hot water source.(Max
  • Can be shelf, wall or floor mounted ; Simply tap into the cold water line and install the water heater directly at the sink to provide hot water
  • Elegant streamline design cover, made your kitchen more pretty.
  • High Quality Built & Elegant Design- Camplux electric water heater has glass-lined tank for long service life and easy to maintain
  • 2.5-gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it.

12. Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 7” x 11” x 3” -Tools & Home Improvement

By EcoSmart

  • Max temperature rise @ .5 GMP is 47.8°F Max temperature rise @ 1GPM is 23.9°F Max temperature rise @ 1.5 GPM is 15.9°F
  • Requires 1 x 30 amp breaker and 10 AWG wire
  • Amperage Draw 29 amp
  • kW – 3.5 kW
  • Connection Fittings 1/2″ NPT
  • Can provide hot water for one sink at 0.5 GPM in warmer climates
  • For one sink at 0.5 GPM in colder climates the POU 6 is recommended

13. Amazon Basics Stainless Steel Fast, Portable Electric Hot Water Kettle for Tea and Coffee, 1.7-Liter, Silver -Water Heaters

By Amazon Basics

  • Detaches from base for convenient cordless serving with a heat-proof plastic handle
  • Make herbal tea, instant soup, cocoa, French press coffee and more in a fraction of the time
  • Safety features include auto-shutoff and boil dry protection
  • Compact design with handy cord wrap system for space-saving storage
  • Stainless steel 1.7 liter/1500 watt electric kettle for quickly boiling water
  • Includes removable filter, water level window, and concealed heating element

14. EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with Patented Self Modulating Technology -Tools & Home Improvement

By EcoSmart

  • 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.
  • EcoSmart ECO 11 Sizing; 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

15. Rinnai V53DeP Propane Tankless Hot Water Heater, 5.3 GPM -Tools & Home Improvement

By Rinnai

  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: High-performance up to 5.3 GPM hot water flow rate for a powerful, constant stream
  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit

16. Rinnai V53DeN Natural Gas Tankless Hot Water Heater, 5.3 GPM -Tools & Home Improvement

By Rinnai

  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively
  • Optimal Water Pressure: High-performance up to 5.3 GPM hot water flow rate for a powerful, constant stream
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary.

17. Tankless RV Water Heater Propane Gas Hot Water Heater with Remote Control and 15 x 15 Inches White Door for RVs Campers and Travel Trailers 12V DC 1.58GPM 42000BTU -Tools & Home Improvement

By FOGATTI

  • Designed For RV and Campers: The cutout size of this rv tankless water heater is 13×13 inches, and the door size is 15×15 inches
  • Easy to Install: It’s straightforward to hook up water inlets and outlets (Please note that a pressure relief valve, T-shaped connector, and some adapters may be recommended by plumbers while sold separately) , and gas inlets; and connect the wires to your 12V DC RV Battery for automatic pulse ignition and the other two wires to the wired remote controller.
  • Safe to Use: This RV tankless propane hot water heater features a forced exhaust structure to keep the air safe and clean, low water pressure startup, dry-burning protection, flameout protection, water overpressure protection, overheating protection and anti-freeze protection
  • Instant & Endless Hot Water: With its heating power of 42,000 BTU & 1.58 Gallon per Minute (GPM) capacity, the RV tankless water heater supplies instant, steady, and endless hot water on demand, lets your whole family enjoy a comfortable shower on the road.
  • Artificial damage cannot be applied.
  • This Fogatti propane water heater is designed for retrofit applications and used as a replacement for Suburban 6 gallons, Suburban 4 gallons, Girard 2GWHAM, Furrion 2.4GPM model FWH09A-1-A, Recpro RP1057, Atwood 94001BP.
  • Easy to use: The Fogatti RV tankless hot water heater comes with a digital remote controller to turn on/off the water heater, adjust water temperature, and for automatic fault diagnosis and error code display.
  • Also, the heater and its components are designed and built for the road, Ultimately, it’ll be a worry-free experience in your RV and campers.
  • Quality Assurance: FOGATTI offers new and free replacements if any quality problem occurs within 30 days counting from the delivery day and one year free service

18. ecosmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology,White 17 x 14 x 3.5 -Tools & Home Improvement

By EcoSmart

  • Never run out of hot water with an ECOSMART tankless water heater.
  • The product works and is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire
  • Digital temperature control in 1-degree increments gives users complete control of hot water
  • Amperage (amps): 75
  • The product is easy to use
  • The product is highly durable
  • Save up to 12 cubic feet of storage space.
  • 3 GPM
  • Activation flow: 0
  • Flow Rate @ 35 F Rise (gallons/min): 3
  • Save up to 60% on your water heating costs with the most advanced, self modulating technology available
  • 75 A
  • Lifetime warranty for residential use
  • 51 gal (US)/min
  • Manufactured in China

19. Rheem RTEX-24 24kW 240V Electric Tankless Water Heater, Gray -Tools & Home Improvement

By Rheem

  • Self-modulating power control
  • 24kW Model Flow Rate: up to 5.9 GPM for RTEX-24
  • Bottom 3/4″ NPT water connections
  • On demand, consistent and continuous hot water
  • ON/OFF Dial Control with adjustable digital temperature display

20. COSORI CO108-NK Electric Gooseneck 5 Variable Presets Pour Over Kettle & Coffee Kettle, 100% Stainless Steel Inner Lid & Bottom, 1200 Watt Quick Heating, 0.8L, Matte Black -Water Heaters

By COSORI

  • Turning Off The Ready Tone: The kettle features a ready tone that beep 3 times when the water reached the preset temperature
  • It also has a Keep Warm function that automatically keeps water at the same temperature for 60 minutes
  • If you don’t want this beep alert
  • Designed in California
  • Safe Tech and Auto Shut Off: Features British STRIX thermostat technology, auto shut-off after the water get your desired temperature
  • This Cosori’s Gooseneck Kettle features 5 precise temperature presets
  • The accurate variable presets allow you to never again burn your coffee or tea leaves
  • Quick Heating: The 1200 watts of power boils a full kettle in just 3-5 minutes, meaning you can enjoy a cup of coffee in no time
  • The counterbalanced handle helps keep your pour steady, handle moves the center of mass back towards your hand – encouraging a more comfortable, slower pour
  • Stop wasting your time in front of the microwave or stove
  • Unique Leak-Proof Design: The spout is consistent and high strength laser welding, no need to worry leaking no matter how long you use it
  • Precise Pouring: The COSORI’s precision pour spout is designed for the optimal pour-over flow rate
  • You can press and hold “HOLD TEMP” for 8 seconds to turn beeps on/off
  • Boil-dry safety feature where it turns off if it detects there is no water inside
  • A 1-hour keep warm function means hot water is always on standby
  • Pair our pour over coffee maker (search for CO148-CM) for the perfect brew
  • Helpful Service: Please note that this voltage (120V, 60Hz) ONLY applies to USA and Canada.
  • The Purest Taste: The kettle is made with 100% food-grade stainless steel in its housing, lid, and spout, with no Teflon or chemical linings, which keeps the perfect taste for your coffee and tea

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21. Stiebel Eltron 239223 Tankless Water Heater – Tempra 29 Plus – Electric, On Demand Hot Water, Eco, White, 23 -Tools & Home Improvement

By Stiebel Eltron

  • Requires 3 separate dedicated 40 amp breakers with 8 gauge copper wiring, and a minimum of 200 amp total service to the residence
  • On demand a continuous and unlimited supply of hot water
  • Sleek design saves space and no venting required
  • Requires hard-wired 240 or 208-volt electric service, with a maximum draw of 28,800 watts at 240 volts or 21,600 watts at 208 volts

22. MAREY GA24CSANG 8.34GPM, High Efficienty, CSA Certified, Residential Multiple Points of Use Natural Gas Tankless Water Heater, White -Tools & Home Improvement

By MAREY

  • Oxygen free copper heat exchanger
  • CSA Certified
  • Anti-Freeze Protection
  • Stainless Steel Venting Exhaust
  • LED Touch Screen Computerized Safety
  • Flow activation
  • UL listed

23. Rinnai V75iP Propane Tankless Hot Water Heater, 7.5 GPM -Tools & Home Improvement

By Rinnai

  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively
  • Optimal Water Pressure: High-performance up to 7.5 GPM hot water flow rate for a powerful, constant stream
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit

24. RV Water Heater Propane RV Gas Hot Water Heater 2.2 GPM 55,000 BTU, FOGATTI RV Tankless Water Heater for RVs, Campers and Travel Trailers with 15 x 15 Inches White Door -Water Heaters

By FOGATTI

  • The RV water heater’s sleek tankless design saves the trouble of tank rusting, replacing the anode, and greatly extends RV water heater service life.
  • Unlike tank type RV hot water heater, the hot water supply becomes limitless.
  • What You’ll Get: FOGATTI RV tankless water heater (FOGATTI FS08B1), a door, a remote controller, an instruction manual, our worry-free 12-month warranty, and friendly customer service in United States (pressure relief valve not included).
  • Full propane combustion prevents generation of carbon monoxide, and unpleasant smells.
  • This RV water heater fits retrofitting Suburban and SW6D, SW6DE, SW4D and SW4DE series, Girard 2GWHAM, Furrion FWH09A-1-A, Recpro RP1057, Dometic WH-6GA.
  • Original Equipment Manufacturer Quality: The RV water heater has premium quality being verified and chosen by RV manufacturers
  • Advanced Safety Features: The RV tankless water heater is engineered with worry-free safety features including flameout, anti-freeze, overheat, and overpressure protections as well as troubleshooting diagnostic codes
  • Wide Retrofit Compatibility: The cutout size of FOGATTI RV gas hot water heater is 13 x 13 inches, with door size 15 x 15 inches
  • Easy and Durable to Use: The FOGATTI RV tankless hot water heater comes with a digital wall-mounted remote controller, allowing easy access to control the RV water heater inside RV
  • Instant and Endless Hot Water: The RV water heater delivers instant, endless and consistent hot water on demand, with its heating capacity instantly rising up to 55000 BTU and 2.2 Gallon per Minute (GPM) at ultra energy efficiency with propane gas
  • It is engineered with FOGATTI patented technologies and uniquely designed components, ensuring proven performance and ultimate comfort for mobile living.

25. GIRARD 2GWHAM Tankless Water Heater -Automotive

By Girard Prod

  • Quiet brushless motor
  • 42,000 BTUs which provides the optimum performance for an RV’s plumbing
  • Regulates the burner to maintain the set hot water temperature.Freeze protection – designed for winter Use
  • 12V power operates at less than 3 amps
  • No special LP gas lines or special plumbing required

26. EcoSmart 8 KW Electric Tankless Water Heater, 8 KW at 240 Volts with Patented Self Modulating Technology -Tools & Home Improvement

By EcoSmart

  • Activation Flow – 0.3 GPM
  • The product is highly durable
  • Heating elements are durable and are threaded for easy replacement
  • The product is easy to use
  • Manufactured in China

27. Rinnai RU199iN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM -Tools & Home Improvement

By Rinnai

  • Circ-Logic technology allows you to set recirculation patterns that coincide with your typical habits
  • Hot water is available when you need it!
  • Up to 11 GPM hot water flow rate (varies by groundwater temp)
  • Residential Factory Warranty – 120 months (heat exchanger), 12 months (labor), 60 months (parts)

28. Electric Kettle, ASCOT Stainless Steel Electric Tea Kettle, 1.7QT, 1500W, BPA-Free, Cordless, Automatic Shutoff, Fast Boiling Water Heater -Beige -Water Heaters

By ASCOT

  • Backed by an ASCOT 1-year limited quality assurance
  • No plastic in contact with hot water.
  • QUICK BOILING AND SAFETY – This stainless steel electric kettle uses the concealed heating element and can boil water in 5 minutes
  • Power base with 27-inch power cord for flexible placement, plus cord wrap for compact storage.
  • You can walk away to focus on other things due to the function of auto shut off and boil-dry protection.
  • Anti-scald handle, round spout, separate lid, and spout filter are handmade by experienced craftsmen under strict quality standards.
  • CORD-FREE SERVING – Cordless design allows for easy filling and serving
  • UNIQUE DESIGNED CRAFTSMANSHIP – ASCOT matte silver electric kettle with unique design and beautiful appearance
  • 1-YEAR QUALITY ASSURANCE- ASCOT Electric water kettle with 1.7QT capacity and 1500 watts of power for fast results (120V~60Hz)
  • 100% STAINLESS STEEL – Made of food-grade 304 stainless steel and BPA-free food-contact materials
  • No risk to buy!

29. Rinnai V75eP Propane Tankless Hot Water Heater, 7.5 GPM -Tools & Home Improvement

By Rinnai

  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Optimal Water Pressure: High-performance up to 7.5 GPM hot water flow rate for a powerful, constant stream
  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively

31. Propane Tankless Water Heater On Demand Hot Water Heater Indoor for 3-4 Persons Home Use, 4.2 GPM, 170,000 BTU,120V AC, White -Tools & Home Improvement

By FOGATTI

  • Auto cut-off & anti-dry burning protection.
  • Safety & Excellent Quality CSA certified
  • The Fogatti tankless water heater will never run out of hot water and keep everyone happy.
  • Instant Water HeaterHigh efficiency whole house tankless water heater propane, Enjoy a comfortable shower without waiting, the continuous water heater tankless propane provides you with hot water instantly, save your valuable time, as well as energy and water.
  • Auto cut-off & anti-dry burning protection.
  • Endless Hot WaterPropane tankless water heater indoor is able to meet all of your hot water needs
  • The burner is manufactured by the same factory that produces popular brands sold globally, using the latest European technology, high efficiency and energy saving, The Heat Exchanger is made of oxygen-free copper, efficient and durable;According to DOE test standard, the capacity is up to 4.2 GPM @ 67℉ Temperature Rise(Equivalent to 6.2 GPM with a 45℉ temp Rise)
  • Indoor tankless water heater propane works under low water pressure, great for all locations including total home, high buildings, apartments, or cabins, etc.
  • Easy To Install Use standard 3/4″ NPT water fittings and φ3″ Vent Pipe for convenient and quick installation
  • The burner is manufactured by the same factory that produces popular brands sold globally, using the latest European technology, high efficiency and energy saving, The Heat Exchanger is made of oxygen-free copper, efficient and durable;According to DOE test standard, the capacity is up to 4.2 GPM @ 67℉ Temperature Rise(Equivalent to 6.2 GPM with a 45℉ temp Rise)
  • Safety & Excellent Quality CSA certified
  • No longer do you need to choose between a hot shower, dish washing and laundry

32. Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology, 17 x 17 x 3.5 -Tools & Home Improvement

By EcoSmart

  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
  • Patented Self Modulating Technology and design.Activation flow 0.3 GPM
  • Lifetime warranty
  • Never run out of hot water with an ECOSMART tankless water heater
  • 100 A

33. Rinnai V94eP Propane Tankless Hot Water Heater, 9.8 GPM -Tools & Home Improvement

By Rinnai

  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Optimal Water Pressure: High-performance up to 9.8 GPM hot water flow rate for a powerful, constant stream
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit

34. Rinnai RUR199iN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM -Tools & Home Improvement

By Rinnai

  • Endless hot water for your entire home
  • RUR199in Sensei SE+ Super High Efficiency Tankless Hot Water Heater – Natural Gas: Indoor Installation Only
  • Up to 11 GPM hot water flow rate (varies by groundwater temp)
  • Residential Factory Warranty – 120 months (heat exchanger), 12 months (labor), 60 months (parts)
  • Control-R 2.0 mobile app features timers and schedules throughout the day and allows you to remotely put the system into vacation mode.

35. Rinnai V75iN Natural Gas Tankless Hot Water Heater, 7.5 GPM -Tools & Home Improvement

By Rinnai

  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively
  • Optimal Water Pressure: High-performance up to 7.5 GPM hot water flow rate for a powerful, constant stream
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary

36. Rinnai V94XiN Natural Gas Tankless Hot Water Heater, 9.8 GPM -Tools & Home Improvement

By Rinnai

  • Guaranteed to Last: 10-, 5-, and 1-year residential factory warranty for heat exchanger, labor, and parts, respectively
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary
  • Enhanced scale detection lessens possibility of serious, long-term damage to unit
  • Optimal Water Pressure: High-performance up to 9.8 GPM hot water flow rate for a powerful, constant stream

37. Furrion 2.4GPM Tankless RV Gas Water Heater with White 16.14” x 16.14” Door – FWH09A-1-A -Automotive

By Furrion

  • Replacement Door for Suburban: Specially designed for retrofit applications and use as a replacement door for Suburban 4/6 Gallon Water Heater models
  • This door fits the required dimension of 16.14 x 16.14 Inches.
  • Dual-sensors automatically shut power off if the temperature exceeds a safe limit.
  • Steady Temperatures: Furrion’s Vortex technology consistently mixes water to your desired temperature
  • High Heating Power: 60K BTU heating power & a 2.4GPM capacity, Furrion RV Gas Water Heater will deliver hot water on demand at consistent temperature even when the ambient temperature drops to 32ºF.
  • Product Dimensions (W x H x D): 12.81 x 12.62 x 20.75 Inches
  • Warranty & Dimensions: Designed with the highest quality materials, the Furrion RV Gas Water Heater is covered by Furrion’s 2-year Warranty
  • Built for the Road: Engineered for durability and performance on the road, with Furrion VibrationSmart technology and components designed to withstand intense vibration encountered by uneven terrain.

38. RecPro RV Tankless Water Heater | On Demand Hot Water Heater | Gas Water Heater | Remote Control Included (White) -Water Heaters

By RecPro

  • There is a forced exhaust structure that keeps the air safe and clean while and after entering the combustion chamber
  • With this amazing machine, you can have a steady stream of hot water flowing to your faucets or shower without waiting for the tank to warm up.
  • No more waiting for the water tank to warm up or running out of warm water halfway through your shower
  • There is a low water pressure startup, which helps to protect the heater and make it easier to use.
  • There is also a dust net to make sure no dirt gets into the tankless water heater.

39. HUGO Battery Backup for Tankless Water Heaters and Gas Appliances (Standard Flow Sensor) -Tools & Home Improvement

By SAFEGUARD POWER SOLUTIONS

  • 350W/500VA Pure Sine Wave
  • Up to 7 days of operation during power outage
  • Designed for tankless water heater and gas appliances
  • Recognized and approved by Rinnai USA
  • Indoor/outdoor installation

40. Rheem RTEX-18 18kW 240V Electric Tankless Water Heater, small, Gray -Tools & Home Improvement

By Rheem

  • Threaded for easy replacement, simple installation, digital temperature display
  • Flow Rate- up to 4.4 GPM
  • Most advanced self-modulation, adjust power to meet hot water demand
  • Simple installation – bottom 3/4 inch NPT water connections
  • External digital thermostatic control with LED display (+/1 degree accuracy)
  • Durable Copper immersion two heating elements, field Serviceable

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41. Rinnai CU199iN Natural Gas Condensing Tankless Hot Water Heater, 11 GPM -Tools & Home Improvement

By Rinnai

  • Optimal Water Pressure: High-performance 11 GPM hot water flow rate for a powerful, constant stream
  • Guaranteed to Last: 8-, 5-, and 1-year commercial warranty for heat exchanger, parts, and labor, respectively

42. Eccotemp i12-LP Water Heater, 4 GPM, Black -Tools & Home Improvement

By Eccotemp

  • Sleek, modern design with black tempered glass front panel featuring an easy to use LED display controls
  • Safe electronic ignition system; Plugs into standard 110v electrical outlet with UL-listed cord
  • Uses standard 1/2″ NPT water fittings and comes with horizontal venting allowing for a convenient and quick installation
  • Features fully automatic temperature controls with an energy saving mode and child lock technology
  • Whole home indoor, gas powered tankless water heater, rated at 4 GPM that activates only on demand and no pilot light needed, reducing energy consumption

43. Rinnai RU199iP Propane Gas Condensing Tankless Hot Water Heater, 11 GPM -Tools & Home Improvement

By Rinnai

  • Wifi monitoring.
  • Optimal Water Pressure: Up to 11 GPM hot water flow rate for a powerful, constant stream
  • Guaranteed to Last: 15-, 5-, and 1-year residential for heat exchanger, labor, and parts, respectively
  • Instant Heating: Equipped with Circ-Logic – Pair with an external pump to reduce wait time for hot water via scheduled or on-demand recirculation
  • Energy and Space Efficient: Space-saving design conserves energy as it heats only when necessary

44. Camplux Tankless Water Heater Electric with LED Display 120V Instant Water Heaters Under Sink 3.5kw TE04 -Tools & Home Improvement

By CAMPLUX

  • Rotatable LED Display: 120V tankless water heater features an upgrade rotatable digital temperature display and touch control panel, show you the easy reading output water temperature at real-time and setting ideal temperature just by finger
  • Note: This mini water heater is only suitable for sink use, not for bathing
  • Please make sure it is the right size for you: 3.5kW at 120V, product dimensions 7.8″ x 6.3″ x 3.9″, water pipes fitting: 1/2″ NPT male
  • Enjoy instant and endless hot water
  • Stainless steel and copper component for high efficiency and durability
  • Smart&Considered Design: Small water heater designed with smart touch control & LED display, mini size, perfect for under sink installation
  • Reliable&Durble: The 3.5kW tankless water heater comes with 5 protections
  • Easy to get hot water between 85°F – 131°F in seconds
  • The minimum water flow for activation just need 0.4 GPM (Only for one sink)
  • Multi-angled Mounting: The compact size instant electric water heater requires a connection of 1* 40A circuit breaker & 10 AWG wire
  • Consistent Hot Water -On demand water heater only heats the water when you need it and no waiting for preheat.The temperature rise of 1.0 GPM is 55°F
  • ETL safety certified, leakage and overheat protection device to ensure your safety
  • NFS approved, offer lead-free water
  • Can be mounted Multi-angled, ideal for kitchen, wet bars, school, hospital, hair salon and boats
  • Install close to outlet for energy saving

45. BELLA 1.2 Liter Electric Ceramic Tea Kettle with Detachable Base & Boil Dry Protection, Blue Aztec, Electric Tea Kettle with Automatic Shut Off & Detachable Swivel Base (13724) -Water Heaters

By BELLA

  • A long gooseneck-style spout is ideal for controlled pours & avoiding dangerous over pours
  • We provide you with quick & convenient kitchen solutions to simplify your hectic life, including small kitchen appliances, cookware & housewares.
  • ELECTRIC TEA KETTLE: Boil water faster than a microwave & safer than a stovetop with a flip of a switch! This kettle features a 1200 watt heating element, fully detachable 360 degree power base with cord storage & a safe, easy to use design
  • MIX IT UP: The kitchen should be fun
  • Boil hot water for tea, coffee, oatmeal, instant soups and more.
  • BUILT IN SAFETY: This kettle features automatic shut off & boil dry protection as well as a concealed heating element for maximum safety & ease of use
  • With BELLA It can be
  • KITCHEN ESSENTIALS: BELLA offers a full range of high-quality products including air fryers, waffle irons, toasters, coffee makers, electric kettles, slow cookers, espresso machines, griddles & juicers.
  • TIMELESS FAVORITE: This ceramic tea kettle is a home essential, combining undeniable style and versatility with reliable functionality and safety

Small water heater – The Buyer’s Guide

You must have checked the above list, aren’t you mind-blown by the quality of products? Well, if you are then here’s a secret formula which we’ve used to choose them. You can use them too! The best part is, it works for all the product purchases you make! Besides, wouldn’t it be helpful to you, if you knew the factors we’ve considered to choose the small water heater in the above list? So shall we begin with the guide and help you learn about the important factors?

1. Does it have the features you need?

Wait for a minute before you buy the small water heater, check if it has all the features in your requirement list! If it doesn’t have them, then you should avoid buying that particular model and start looking for an alternative. We always suggest our editors to make a list of important features before adding a product to a list and based on the feature, the quality of the product, brand-assurance, rank it! So if it has all you need, you should not mind paying a bit extra. However, if you end up buying the best small water heater which doesn’t have the feature you need the most, then it won’t make sense! Would it? To us, it wouldn’t! That’s why you should make up a list which includes the features you are looking for, technical specifications if any, etc and come up with a budget.

2. Budget and Price Match

Well, you obviously can’t buy the best small water heater with a low budget. That’s why it’s important to make note of all the important features, specs, factors and come up with a budget. Once you are ready with it, look for the products which are either equal to your budget or are close to it. Stick to the budget, because while browsing, you’ll see a model which is slightly better and has an additional feature with a really small price difference. Well, in that case you’ll have to calculate the price of the product which has all the required features and the small water heater with the additional features. See if the difference in amount is worth for the feature? If you don’t have second thoughts, you shall probably increase your budget.

3. Warranty and Brand

Most of the small water heater industry experts we got in touch suggested us to always buy the one which comes from a reputable brand. They also explicitly asked us to include the best brands so that users don’t buy the models from unknown brands or non-reputable companies. Because small water heater from an unknown brand might be cheap at first glance, but could have high-maintenance and could cost a lot in repairs.

Another benefit of buying a small water heater from a reputable brand would be warranty. Most of the small water heater from reputable brands come with good warranty. However, cheap products do come with a warranty, but claiming it can be a herculean task. That’s why buy the models which come from known brands and have good warranty.

4. Check for Reviews and Ratings

Back then when the Internet wasn’t as big as it is today, local stores charged high and even ended up selling the products which sucked or wasn’t future proof. It’s because the salesman threw technical terms and confused the buyer. But nowadays, there are sites like ours which does all the research and lists down the best models and there are eCommerce stores like Amazon which has user reviews which can be read to know the experience of the user with that particular small water heater. Isn’t it great?

The Verdict

We hope that you loved the small water heater we’ve listed in our best list. If it has been helpful, please bookmark our website and share it with people you know whenever they plan to buy something.

To wrap up this guide,

About the author

Alex Rowe

Alex Rowe is the Senior Writer at Main Street Mobile. He loves to try the latest tech gadgets in the market. Also, he attends various tech conferences in his country. He covers news on Technology. Apart from this, he also loves audio, design, and writing.

To get in touch with Allen for news reports you can email him on alex@mainstreetmobile.org or reach him out on social media links given below.

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