Instant Water Heater

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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.

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Best Instant Water Heater Deals

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

Image of 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

$59.68 @ Amazon.com

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Key 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.
  • ✅ ✔ SAFETY INTELLIGENCE RELIABLE - This under sink hot water heater has multiple protection functions. Water and electricity isolation, IPX4 waterproof, leakage protection, dry boil protection, and automatic power off under overheating and inactivity. Prevent leakage and water pipe corrosion. The thermal efficiency of instant hot water heater is as high as 98%, allowing you to enjoy hot water at any time and save energy.
  • ✅ ✔ EASY TO INSTALL AND APPLICATION - Our instant hot water heater under sink compact design, it is very suitable for every corner of your home. This 110 volt water heater comes with premade fixing screw holes, an English manual, and 1/2 inch NPT standard interface. This small water heater is ideal for spaces such as kitchens, apartments, bathrooms, RVs, and camping. TIP: Install vertically to avoid malfunction of the heating elements (E2).
  • ✅ ✔ IMPORTANCE FOR INSTALLATION - ① The 110v water heater is vertical installation only, no horizontal installation is allowed, to avoid malfunction of the heating elements (E2). ② The electric tankless water heaters tighten the pipe connectors with Teflon tape to prevent a short circuit (E2). ③ This tankless hot water heater is recommended to be connected with wires with a cross-sectional area of ≥ 2.5 square millimeters, and connected to trip switches of over 32a for use.

Product Details

Brand:xwdzswgs
Model:Water Heater Electric
Color:White
Dimensions:4.32 X 4.32 X 7.86 inches

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

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$189.99 @ Amazon.com (Save 24%)

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Key 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.Special Features: ‎Energy Efficient
  • ✅ 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

Product Details

Brand:EcoSmart
Model:ECO 11
Size:12 x 8 x 4
Color:White
Dimensions:3.75 X 8 X 11.5 inches
Warranty:Lifetime Warranty on electronics, exchanger and element. Warranty only covers cost of heater; does not cover labor or any incidental damages.

Propane Tankless Water Heater, 4.76GPM 18L Indoor, Constant Propane Water Heater with Fahrenheit Digital Display, with Inlet & Outlet Water Pipes and Stainless Steel Flue Pipe, Instant Hot, LPG,35KW

Image of Propane Tankless Water Heater, 4.76GPM 18L Indoor, Constant Propane Water Heater with Fahrenheit Digital Display, with Inlet & Outlet Water Pipes and Stainless Steel Flue Pipe, Instant Hot, LPG,35KW

$226.98 @ Amazon.com

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Key Features

  • ✅ 【Instant Hot Water & Constant Temperature Supply】18L (4.76 GPM) propane tankless water heater with high-flow design delivers constant hot water without preheating—just turn it on and enjoy. Equipped with a precise temperature control system, it maintains a temperature difference of only ±1℉, eliminating fluctuations. Operates at an ultra-low water pressure of just 3.6PSI (0.025 MPa), delivering a steady output of 4.76 gallons of hot water per minute with a maximum temperature rise of 149°F (65°C). Specifically designed for propane (LPG).
  • ✅ 【Energy-Efficient & Quiet Operation】This tankless propane hot water heater operates at 110V, 60Hz voltage with a maximum output of 119,500 BTU (35 kW), simultaneously supporting hot water demands for 3-4 points such as bathrooms and kitchens. Enjoy continuous hot water for the entire household without waiting. Advanced combustion technology significantly reduces gas consumption, while optimized airflow design minimizes operational noise for a quiet and comfortable experience.
  • ✅ 【Premium-Feel Body, Durable & Rugged】The propane water heater tankless features a sturdy iron body combined with a high-hardness tempered glass panel. Its robust structure offers strong load-bearing capacity, while the exterior resists wear, impacts, and stains for easy cleaning. It maintains a clean and attractive appearance even after long-term use. The built-in oxygen-free copper water tank ensures rapid heat transfer and minimal heat loss. It also boasts strong corrosion resistance, resists scale buildup, extends service life, and requires less maintenance.
  • ✅ 【Smart Control & Easy Installation】 The tankless propane water heater features an LED smart digital touchscreen, supporting precise temperature adjustment across a wide range of 95℉-149℉ (35℃-65℃). It clearly displays the current water temperature for intuitive and convenient operation. Standard 1/2”NPT water inlet and gas connections. Package includes 2 x 1/2” NPT inlet/outlet pipes and 2.5” horizontal vent pipe. Complete accessories simplify installation. Tankless design ensures compact size for immediate use, significantly saving installation space.
  • ✅ 【Safe & Reliable, Multi-Layer Protection】The indoor tankless propane water heater features multiple safety functions including flame failure protection, freeze protection, and overheat protection. Paired with a CE-certified regulator, it ensures safe operation. Its ventilation and exhaust design is well-engineered for worry-free use in various environments. Note: If the unit remains unused for extended periods in cold weather, open the pressure relief valve to drain residual water.

Product Details

Brand:PeiXWming
Model:18L
Color:White
Dimensions:13.78 X 13.78 X 23.62 inches
Warranty:12 Months

Rheem 18kW 240V Tankless Electric Water Heater, Gray

Image of Rheem 18kW 240V Tankless Electric Water Heater, Gray

$440.68 @ Amazon.com

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Key Features

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

Product Details

Brand:Rheem
Model:RTEX-18
Size:Small
Color:Gray
Dimensions:18.5 X 14.5 X 3.5 inches

Tankless Water Heater Electric 110V, 3000W Instant Water Heater Under Sink, On Demand Hot Water Heater Electric with Digital Display, Electric Mini Water Heater for Kitchen Bathroom Washin

Image of Tankless Water Heater Electric 110V, 3000W Instant Water Heater Under Sink, On Demand Hot Water Heater Electric with Digital Display, Electric Mini Water Heater for Kitchen Bathroom Washin

$52.68 @ Amazon.com

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Key Features

  • ✅ ✔ MINI INSTANT HOT WATER HEATER - This 110 volt water heater is equipped with state-of-the-art technology, with 3000W power, LED display. The electric tankless water heater 110v can raise the water by 82° F (28°C) (0.3GPM) -131° F( 55 °C) (0.5GPM) in 3-5 seconds, saying goodbye to long waiting times for hot water. The tankless electric water heater can set Fahrenheit or Celsius degrees by holding a power button for 6 seconds.
  • ✅ ✔ SAFETY INTELLIGENCE RELIABLE - This under sink water heater has multiple protection functions. IPX4 waterproof, leakage protection, dry-burning protection, automatic power-off in over-temperature and inactive states. Tankless hot water heater electric can meet your outlet temperature requirement. Large water flow means low temperature and small water flow means high temperature. TIP: Install vertically to avoid malfunction of the heating elements (E2).
  • ✅ ✔ LIGHTWEIGHT PORTABLE DESIGN - This small water heater compact design, is suitable for installation in the bathroom, kitchen under the sink, etc. The on demand water heater adopts a wall-mounted design, freeing up valuable space for your home, enjoy hot water at any time. This instant hot water heater under sink qualifies for ETL standard, you can expect the outstanding performance of this point of use water heater in the coming years.
  • ✅ ✔ EASY TO INSTALL AND APPLICATION - This under sink instant water heater comes with premade fixing screw holes, an English manual, and 1/2 inch NPT standard interface. This small electric water heater is ideal for spaces such as kitchens, apartments, bathrooms, RVs, and camping. The comfortable water temperature generated by this 110V water heater is suitable for cleaning food, bowls, clothes, face, hands, etc.
  • ✅ ✔ QUALITY WARRANTY & IMPORTANT NOTE - We provide a 24-month warranty for the electric water heater tankless. If you encounter any after-sales issues regarding the small hot water heater, you can always contact our electric tankless water heaters support team. Tip: This electric hot water heater is recommended to be connected with wires with a cross-sectional area of ≥ 2.5 square millimeters, and connected to trip switches of over 32a for use.

Product Details

Brand:xwdzswgs
Model:CS-RSQ-US
Color:White
Dimensions:4.33 X 4.33 X 7.87 Inches

Under Sink Electric Tankless Water Heater 3000W, 110V Instant Hot Water Heater with Digital Display, On Demand & Portable for Kitchen Sink

Image of Under Sink Electric Tankless Water Heater 3000W, 110V Instant Hot Water Heater with Digital Display, On Demand & Portable for Kitchen Sink

$59.99 @ Amazon.com

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Key Features

  • ✅ Under-Sink Installation & Compact Size: Designed specifically for under sink installation, this space-saving unit fits neatly in cabinets to provide hot water directly to your kitchen faucet
  • ✅ Instant On-Demand Hot Water: As a true instant water heater, it delivers continuous hot water on demand within seconds, eliminating the wait and energy waste of a storage tank
  • ✅ Portable & Simple Electric Design: This portable electric water heater operates on standard 110V household current, offering a versatile heating solution for various points of use
  • ✅ Efficient Tankless Technology: Utilizing advanced tankless water heater technology, it heats water only when needed, providing an energy-efficient and endless hot water supply
  • ✅ Safe Operation with Digital Control: Features a clear digital display for monitoring. Built-in safety protections include anti-dry burning and overheat prevention for peace of mind

Product Details

Brand:Green Point Home
Model:XY-FC
Color:Pure white
Dimensions:7.5 X 7.5 X 9.25 Inches

YALICE 10 Gallon Hot Water Heater Electric, 1500W Fast Heating Point of Use Water Tank Heater 120V with T&P Valve, Adjustable Thermostat, On Demand Water Heater for Shower, Kitchen, Laundry, Office

Image of YALICE 10 Gallon Hot Water Heater Electric, 1500W Fast Heating Point of Use Water Tank Heater 120V with T&P Valve, Adjustable Thermostat, On Demand Water Heater for Shower, Kitchen, Laundry, Office

$239.99 @ Amazon.com

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Key Features

  • ✅ 【10-Gallon Capacity】 This water heater electric offers plenty of hot water for your household needs. With 1500W heating power and a stainless steel heating element, you get faster recovery and less waiting time.
  • ✅ 【Durable Enamel Tank】 Built with a sturdy metal shell, thick insulation, and a corrosion-resistant enamel-coated inner tank, this electric water heater is designed for long-term reliability. A replaceable anode rod further extends the tank’s service life.
  • ✅ 【Comprehensive Safety Protection】 The instant hot water heater is equipped with thermal stability, overheating and overpressure protection, grounding safety, and an IPX4 waterproof rating to ensure safe daily operation.
  • ✅ 【Energy Saving & Precise Control】 Advanced insulation helps minimize heat loss for up to 24 hours. An adjustable thermostat with LED indicator allows you to set the on demand water heater temperature from 86°F to 167°F for consistent comfort.
  • ✅ 【Easy Plug-in Installation】 With standard 1/2" NPT connections and a 120V plug-in design, this point of use water heater is simple to install. Ideal as a primary or booster unit in kitchens, bathrooms, laundry rooms, or offices. Dimensions: 15.8" W × 22.83" H. Please confirm available space before purchase.

Product Details

Brand:YALICE
Model:K38
Color:10 Gallons
Dimensions:17.32 X 17.32 X 22.4 inches

Rheem 3.5kW 120V Point of Use Thermostatic Tankless Electric Water Heater

Image of Rheem 3.5kW 120V Point of Use Thermostatic Tankless Electric Water Heater

$187.99 @ Amazon.com

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Key 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.
  • ✅ EASILY ADJUSTABLE: Thermostatic temperature controls in 1-degree increments ranging from 80 to 140 degrees Fahrenheit for on-demand, consistent hot water.
  • ✅ INSTALLATION: Designed to be mounted in an upright position with the inlet and outlet water connections at the bottom of the unit for ease of installation with no venting required.

Product Details

Brand:Rheem
Model:RTEX-04T
Color:Gray
Dimensions:10.875 X 10.875 X 5.875 inches

EHERDM 110V Instant Tankless Electric Water Heater Faucet 360° Rotating Hot Water Faucet with LED Digital Display Fast Heating Tap for Kitchen Bathroom Big Under Bend

Image of EHERDM 110V Instant Tankless Electric Water Heater Faucet 360° Rotating Hot Water Faucet with LED Digital Display Fast Heating Tap for Kitchen Bathroom Big Under Bend

$35.98 @ Amazon.com

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Key Features

  • ✅ 360°ROTATION: The all-round rotating faucet is suitable for versatile installation in various basins to meet your diverse needs, whether for hand washing, face washing or vegetable cleaning. It effectively reaches sanitary dead angles and allows precise control of water flow, making you enjoy a smooth and comfortable operation. The advanced foaming device in the water outlet balances water saving with optimal product performance
  • ✅ ADJUSTABLE TEMPERATURES: Simply turn the handle to access hot water instantly. With constant power output, this product regulates water temperatures by adjusting the flow rate--higher water flow means lower temperatures and vice versa. Equipped with a small LED display to show the temperatures. The water temperatures in winter is range from 30-40°C/86-104℉, suitable for daily use. No more frostbite on your hands
  • ✅ PRECAUTIONS FOR USE: Before purchasing, please check your current water supply mode to select appropriate heater. When you receive this hot water heater, please install in strict accordance with the instructions or seek professional assistance. Testing before use is crucial, or it will be dangerous. Consult a professional promptly if any problem arise during use
  • ✅ MATERIAL & SIZE: Made of high-quality ABS engineering plastic with an ABS silicone water outlet, boasts high strength and toughness, making it easy to process. The handle is crafted from aluminum alloy which is strong and durable. With a size of 6.69 x 15.75 inches/17 x 40 cm (W x H)
  • ✅ PACKAGE INCLUDED: 1 x water heater faucet (other decorative items shown in pictures are NOT included)

Product Details

Brand:EHERDM
Model:4027cf8a-40ea7-4c72-adbd-25504b599d2e
Color:Big Under Bend
Dimensions:6.69 X 6.69 X 15.75 inches

Generic Tankless Water Heater Electric, Instant Hot Water Heater Under Sink, 3000W 110V On Demand Mini Water Heater for RV Kitchen Bathroom, White

Image of Generic Tankless Water Heater Electric, Instant Hot Water Heater Under Sink, 3000W 110V On Demand Mini Water Heater for RV Kitchen Bathroom, White

$48.98 @ Amazon.com

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Key Features

  • ✅ With 3000W power, the water heater can raise the water by 45° F(0.3GPM) /27° F(0.5GPM) in seconds. You can adjust the water flow to meet your outlet temperature requirement. The Larger water flow, the lower outlet temperature; The smaller water flow, the higher outlet temperature. Not Suitable for Shower(Shower normally requires at least 1.8 gpm). You can set Fahrenheit or Celsius degrees by holding power button for 6 seconds.
  • ✅ IMPORTANT PRE-PURCHASE NOTES: This device with a power of 3000W at 110V draws a maximum current of 27A. (1) Before installation, please verify whether your socket can withstand such a high current. (2) Please check if your circuit breaker can handle this high-current load in addition to the existing electrical appliances. (3) The recommended wire gauge is 10AWG, and the water connection is G1/2.
  • ✅ Premium material: 304 stainless steel lining, 316L stainless steel heating pipe, sturdy ABS shell, uni-corrosion brass interface. IPX4 waterproof, dry burning protection, leakage protection, and overheating protection upgrade safety level
  • ✅ Automatic standby mode ensures that you enjoy heated water at any time. One-touch operation provides convenience.
  • ✅ This mini water heater is ideal for limited spaces such as kitchens, apartments, bathrooms, RVs. Not Suitable for Shower(Shower normally requires at least 1.8 gpm)

Product Details

Brand:Generic
Model:XY-FC
Color:White
Dimensions:2.8 X 2.8 X 4.33 inches
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