Are you looking for an instant water heater? Then you have come to the right place. This article will take about the best instant water heaters, so stick around and keep reading to find out.
AO Smith HSE-VAS-X-025 Storage 25-Litre Vertical Water Heater
With a capacity of 25 liters, the AO Smith instant water heater has a 5 star rating. AO Smith is one of the best brands in the industry, known for making amazing appliances, and with their latest water heater, they have managed to make a killer product. The inner tank is made with a blue diamond glass, and it will be able to hold your warm water for a long period of time without losing heat. It has a double layered protection and comes with a sleek design and an amazingly energy efficient technology.
Bajaj New Shakti GL 25-Litre Vertical Storage Heater
The Bajaj instant water heater is a high quality product that comes under two variants, one with a 10 liter capacity and the other with a 15 liter capacity. Its inner tank is coated with a glass line that is free from any corrosion while the plastic body of the water heater makes it a very lightweight appliance. It also comes with PUF insulation to ensure that the water remains hot for a sufficiently long period.
Crompton Amica ASWH-2015 15L Storage Water Heater
The Crompton instant water heater has a total storage capacity of 15 liters. It is a very safe appliance to operate and comes with a range of useful features that will make your life more convenient.
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted

$180.82
@ Amazon.comCONVENIENT 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)
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
Product DetailsBrand: | Bosch Thermotechnology |
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Model #: | 7738004996 |
Warranty: | 6 year warranty on unit, 2 year warranty on parts |
Size: | 2.5 Gallon |
Color: | White |
Dimensions: | 13.75 X 10.75 X 13.75 inches (Length X Width X Height) |
Price: | $180.82 |
Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) - Eliminate Time for Hot Water - Shelf, Wall or Floor Mounted
Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 6 x 11 x 3 Inch

$191.98
@ Amazon.comCan provide hot water for one sink at 0.5 GPM in warmer climates
Requires 1 x 30 amp breaker and 10 AWG wire
For one sink at 0.5 GPM in colder climates the POU 6 is recommended
Amperage Draw 29 amp. kW - 3.5 kW
Connection Fittings 1/2" NPT
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
Product DetailsBrand: | EcoSmart |
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Model #: | POU 3.5 |
Warranty: | 1 Year Warranty on electronics, exchanger and element. Warranty only covers cost of heater; does not cover labor or any incidental damages. |
Size: | 6 x 11 x 3 Inch |
Dimensions: | 6 X 11 X 3 Inches (Length X Width X Height) |
Price: | $191.98 |
Ecosmart POU 3.5 Point of Use Electric Tankless Water Heater, 3.5KW@120-Volt, 6 x 11 x 3 Inch
Camplux Tankless Water Heater, 1.32 GPM Portable Propane Outdoor Camping Water Heater, 5L, AY132, White

$159.99
@ Amazon.comLightweight, 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.
Versatile Applications: The lowest water pressure at beginning for the water heater is 3.0 PSI. For off-grid and rural areas, this hot water generator powered by two size D batteries is ideal. No more chilly outdoor shower anymore.
6-in-1 Protection & CSA Safety Approved: This tankless water heater is CSA Approved with anti-freezing protection, over-heating protection, low water flow protection, dry combustion protection, high water pressure protection and flame failure device.
Installation Instruction & Package Content: This Camplux AY132 heater comes with 1-year guarantee, 5 feet premium on/off shower head, 5 feet gas regulator, 1 set US-standard garden hose, and 1 installation hardware pack. Setting up this propane water heater simply takes 10 minutes.
Important Installation Tip: To avoid gas leakage caused by improper sealing of the water heater, DO NOT TWINE TEFLON TAPE between gas regulator and gas inlet pipe. Read the directions before installation check for gas leaks at all times before operating.
Product DetailsBrand: | CAMPLUX ENJOY OUTDOOR LIFE |
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Model #: | AY132 |
Warranty: | 1 Year Warranty |
Size: | 5 litre |
Color: | White |
Dimensions: | 14.8 X 11.42 X 4.33 Inches (Length X Width X Height) |
Price: | $159.99 |
Camplux Tankless Water Heater, 1.32 GPM Portable Propane Outdoor Camping Water Heater, 5L, AY132, White
Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology, 17 x 17 x 3.5

$501.10
@ Amazon.com (Save 15%)Lifetime warranty
Save up to 60-percent on your water heating cost with an ECOSMART electric tankless water heater
Never run out of hot water with an ECOSMART tankless water heater
Patented Self Modulating Technology and design.Activation flow 0.3 GPM
ECOSMART tankless water heaters are 99.8-percent energy efficient
100 A
Product DetailsBrand: | EcoSmart |
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Model #: | ECO24 |
Warranty: | Lifetime Warranty on electronics, exchanger and element. Warranty only covers cost of heater; does not cover labor or any incidental damages. |
Size: | 17 x 17 x 3.5 |
Color: | White |
Dimensions: | 3.75 X 17 X 17 Inches (Length X Width X Height) |
Price: | $501.10 (Save 15%) |
Ecosmart ECO 24 24 KW at 240-Volt Electric Tankless Water Heater with Patented Self Modulating Technology, 17 x 17 x 3.5
Electric Tankless Water Heater, SIVUATEK on Demand Water Heater Electric Smart Control Point of Use Water Heater Instant 6.5kW 240V for Faucets M1-65B

$119.99
@ Amazon.com【Electric Tankless Water Heater】The M1-65 is compact design for point of use, in the meanwhile it is able to provide sufficient and luxury endless hot water with its powerful 6.5kW heating system. It is great idea to install this kind of tankless water heater electric a few ft away from the faucet or other feature, to get instant and sufficient hot water of 110℉ in seconds.
【Smart Electric Water Heater】The electric instant water heater M1-65 adjusts power input based on flow rate and temp setting real time, thus, you get stable temperature out of it even when flowrate changes, which commits comfortable experience, safety and optimal energy efficiency of 98%, saving considerable electric charge.
【Unique Water Heater Electric】The electric tankless water heater M1-65 is equipped with a specially designed heating chamber, which runs water line and electricity line separated. It brings the benefits of no leakage, no corrosion and minimized scale deposition, so you can expect its outstanding performance in yeas to come, with nearly zero maintenance. Also, it is fully covered by 3 years warranty with confidence.
【Safe& Durable Water Heater】The on demand electric water heater is newly updated and applied with multiple protection devices, such as leakage protection, over heating protection and auto stop. Every piece of M1-65 goes through strict tests to ensure 100% safety and it is listed by ETL and qualifies for UL. Totally suitable for household, school, hospital, office, bar and other public facility.
【Point of Use Water Heater Electric】The sleek electric tankless water heater M1-65 is compact as an oatmeal box, making it possible to install anywhere point of use to avoid energy and water waste. It comes with standard plumbing connections 1/2" NPT and pigtail cord for easy installation with basic DIY skills and reference to the detailed instruction manual provided by SIVUATEK.
Product DetailsBrand: | SIVUATEK |
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Model #: | M1-65B |
Color: | Black |
Dimensions: | 9 X 10 X 2 Inches (Length X Width X Height) |
Price: | $119.99 |
Electric Tankless Water Heater, SIVUATEK on Demand Water Heater Electric Smart Control Point of Use Water Heater Instant 6.5kW 240V for Faucets M1-65B
Camplux Tankless Water Heater Electric with LED Display 120V Instant Water Heaters Under Sink 3.5kw TE04

$119.99
@ Amazon.comSmart&Considered Design: Small water heater designed with smart touch control & LED display, mini size, perfect for under sink installation. 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 & 8 AWG wire. Install close to outlet for energy saving. Can be mounted Multi-angled, ideal for kitchen, wet bars, school, hospital, hair salon and boats. 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
Reliable&Durble: The 3.5kW tankless water heater comes with 5 protections. NFS approved, offer lead-free water. ETL safety certified, leakage and overheat protection device to ensure your safety. Stainless steel and copper component for high efficiency and durability
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 22°F. Easy to get hot water between 85°F - 194°F in seconds. Enjoy instant and endless hot water
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
Product DetailsBrand: | CAMPLUX |
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Model #: | TE04 |
Size: | 3.5kW |
Color: | White |
Price: | $119.99 |
Camplux Tankless Water Heater Electric with LED Display 120V Instant Water Heaters Under Sink 3.5kw TE04
Thermoflow 110V~120V Mini Tankless Water Heater Electric Point of Use On Demand Instant Hot Water Heater for Sinks Wall Mounted, CSA Certified 3.5kW Hard Wired

$109.99
@ Amazon.com【INSTANT ENDLESS HOT WATER】No need to preheat before using, 2 seconds instant hot, faster heating. As soon as you open the faucet, the water flows with your desired temperature. With 28" fixed power cable, must be hard wired
【LED TEMPERATURE DISPLAY】Features a new upgrade concealed automatic rotate digital temperature control display, a real-time of the water temperature will display when the unit is working, so that you can clear at a glance. Temperature range from 95 °F to 122 °F.
【SMART MODULATION SYSTEM】This hot water heater adjusts power automatically when flow rate and temp setting changes, keeping stable temperature of the output hot water, not too cold or too hot.No waiting for preheat nor terrible temp up & down, perfect companion for sinks.
【TANKLESS & ENERGY SAVING】Save up to 60% on your water heating cost with a Thermoflow electric tankless water heater. Distribution, start-up and technical systems losses as well as circulation and storage losses are eliminated.
【POINT of USE for SINK ONLY】The sleek tankless water heater is compact which can be held in one hand, making it possible to install in narrow space. It can be mounted vertically or upside down, ideal for kitchen, bar, school, hospital, community and hair salon. Please verify it is the right size for you: 3.5 kW@110-120 volts; dimensions 5.4" x 7.4" x 3.4 ; pipes fittings 1/2” NPT; max water pressure: 115PSI; required wire: 1 × 12 AWG; required breakers 1 x 2-POLE 30 AMP. Breaker is NOT included.
Product DetailsBrand: | thermoflow |
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Model #: | Elex 3.5L |
Size: | 120V/3.5kW |
Color: | 3.5KW 120V |
Dimensions: | 22.05 X 16.54 X 11.81 Inches (Length X Width X Height) |
Price: | $109.99 |
Thermoflow 110V~120V Mini Tankless Water Heater Electric Point of Use On Demand Instant Hot Water Heater for Sinks Wall Mounted, CSA Certified 3.5kW Hard Wired
3000W Mini Electric Tankless Hot Water Heater Instant Hot Water Heating Machine for Kitchen Bathroom GOLD 110V

$60.99
@ Amazon.com【Intelligent】It heats water as the water passes through the unit, instant heating, so you can use the hot water without waiting. No water flow stops heating, safe and intelligent.
【Constant Temperature】Constant temperature maintains the optimal water temperature for you.
【Compatibility】Suitable for universal water pipe: 1 / 2 inch diameter (inflow or outflow).
【Safe】Various protections: Leakage protection, IPX4 waterproof, dry heating protection, water-electricity isolation, auto power-off at inactive state, over-temperature automatic power-off.
【Application】Easy to install under the bathroom or kitchen sink for washing dishes, food, clothes, faces and other functions.
Product DetailsBrand: | DNYSYSJ |
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Color: | Gold |
Price: | $60.99 |
3000W Mini Electric Tankless Hot Water Heater Instant Hot Water Heating Machine for Kitchen Bathroom GOLD 110V
Tankless Water Heater Electric 5.5kw 240V, ECOTOUCH Point-of-Use Hot Water Heater Digital Display,Electric Instant Hot Water Heater with Self-modulating,Overheating Protection,White

$119.99
@ Amazon.com【INSTANT & SUFFICIENT HOT WATER】Applied with 5.5KW heating system, the electric water heater supplies instant, consistent and endless hot water of 116℉or higher temp shortly, no waiting for preheat nor terrible temp up & down, perfect companion for sinks. Time to get rid of those "lukewarm" toys.
【SMART SELF ADJUSTMENT】The hot water heater adjusts power input based on flow rate and temp setting in real time. For example, less power will be applied by the system when waterflow reduced, thus you still get ideal temperature instead of scalding hot water, which means comfortable experience. Optimal energy efficiency of 98% saves considerable electric charge.
【CONVENIENT USE】The tankless water heater comes with digital display & touch control panel so temp setting is easy job. Now turn on the tap and let the smart unit do the rest, you needn’t go through hard lesson about temp setting by a mixer tap without any hint. The Black model comes with Remote control, useful for installation under sink.
【SAFE and DURABLE】Applied with multiple protection devices, every piece goes through strict tests to ensure 100% safe. Inner water and electricity lines are designed to run separately so as to avoid leakage or harm of scale build up. Approval by ETL and qualifies for UL, you can expect outstanding performance for years to come.
【POINT of USE】The sleek tankless water heater is compact as an oatmeal box, making it possible to install anywhere close to outlet and avoid energy waste. It can be mounted horizontally, vertically, obliquely, ideal for kitchen, bar, school, hospital, community and hair salon. Please verify it is the right size for you: 5.5kW@240V; dimensions 11" x 7.5" x 2.35"; pipes fittings :1/2" NPT.
Product DetailsBrand: | ECOTOUCH |
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Size: | 11 Inch x 7.5 Inch x 2.35 Inch |
Color: | White |
Price: | $119.99 |
Tankless Water Heater Electric 5.5kw 240V, ECOTOUCH Point-of-Use Hot Water Heater Digital Display,Electric Instant Hot Water Heater with Self-modulating,Overheating Protection,White
EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology

$428.99
@ Amazon.com (Save 14%)The product is highly durable
The product is easy to use
Manufactured in China
Amperage (amps): 75. Activation flow: 0. 3 GPM. Flow Rate @ 35 F Rise (gallons/min): 3. 51 gal (US)/min
The product works and is compatible with 2 X 40 AMP (DP) breakers and 2 X 8 AWG wire
Lifetime warranty for residential use
Product DetailsBrand: | EcoSmart |
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Model #: | ECO 18 |
Warranty: | Lifetime Warranty on electronics, exchanger and element. Warranty only covers cost of heater; does not cover labor or any incidental damages. |
Size: | 17 x 14 x 3.5 |
Color: | White |
Dimensions: | 3.625 X 14 X 17 Inches (Length X Width X Height) |
Price: | $428.99 (Save 14%) |
EcoSmart ECO 18 Electric Tankless Water Heater, 18 KW at 240 Volts with Patented Self Modulating Technology