BEST UNDER SINK HOT WATER HEATERS

In this article, we will present the top 10 best UNDER SINK HOT WATER HEATERS available on the market, along with our expert reviews. Get one of them and have fun! You’ll love it!

10 BEST UNDER SINK HOT WATER HEATERS

IMAGE PRODUCT RATING PRICE
1. Bosch Electric Mini-Tank Water Heater Tronic 3000 T 2.5-Gallon (ES2.5) -...
2. InSinkErator HWT-F1000S, One Size, Silver
3. Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric Mini Tank Water Heater
4. Tankless Water Heater Electric 5.5kw 240V, ECOTOUCH Point-of-Use Hot Water...
5. EcoSmart ECO 11 Electric Tankless Water Heater, 13KW at 240 Volts with...
6. Electric Hot Water Heater 110-120V Compact Mini-Tank Storage,Rv Small Output...
7. 110V-120V Electric Mini-Tank Hot Water Heater Storage,1.5KW Kitchen Household...
8. Tankless Water Heater - 3000W Mini Electric Instant Water Heater Under Sink...
9. Tankless Electric Hot Water Heater 220/240V under sink Kitchen Household,...
10. EcoSmart ECO 27 Electric Tankless Water Heater, 27 KW at 240 Volts, 112.5...

Best UNDER SINK HOT WATER HEATERS

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

 in stock
15 new from $146.67
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Features

  • CONVENIENT HOT WATER HEATER: 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%. Dimensions : 13.75 W x 13.75 H x 10.75 D Inches
  • LONG LASTING QUALITY: This electric water heater is easy to maintain and has premium glass-lined material for a long service life. (Amps 12A, Volts (VAC) 120)
  • 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

InSinkErator HWT-F1000S, One Size, Silver

 in stock

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Features

  • HEART OF INSTANT HOT WATER: Hidden underneath your counter, the 750 W instant hot water tank dispenses 200°F water (avg. at Max Setting) instantly, features easy-to-adjust temperature control, and consumes less energy than a 40-watt light bulb.
  • EASY INSTALLATION & FILTERED WATER: This tank features tool-free tank connections and dry start protection to ensure ease of install, and comes paired with the F1000S filter system to help protect the tank from Chlorine and provide better tasting water.
  • HOT WATER ON DEMAND: Whether you're cooking, cleaning or preparing hot beverages, instant hot water dispensers sit on the edge of your kitchen sink ready to dispense near-boiling water when you need it. Save time, space & energy in the kitchen.
  • FASTER, CLEANER, SMARTER: From meal prep to cleanup, InSinkErator helps make it fast & easy to keep your kitchen clean with our iconic appliances: garbage disposals & instant hot water dispensers.
  • A HISTORY OF INNOVATION FOR THE SINK: We invented garbage disposals in 1927, & we're the world’s largest manufacturer of garbage disposals & instant hot water dispensers for home & commercial use.

Ecosmart ECO MINI 2.5 2.5-Gallon 120V Electric Mini Tank Water Heater

 in stock
20 new from $163.73
2 used from $107.48
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Features

  • Sleek and compact design with digital output temperature display
  • ECOSMART tankless water heaters are 99.8-percent energy efficient
  • Manufactured in United States
  • 12 A

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

 in stock
1 new from $117.99
7 used from $86.02
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Features

  • 【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: [email protected]; dimensions 11" x 7.5" x 2.35"; pipes fittings :1/2" NPT.

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

 in stock
8 new from $193.24
7 used from $162.32
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Features

  • 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
  • ECOSMART tankless water heaters are 99.8-percent energy efficient.Uniform Energy Factor:0.98

Electric Hot Water Heater 110-120V Compact Mini-Tank Storage,Rv Small Output 2.5-3.0 Gallon, 1.5KW Kitchen Instant Under Sink Point-of-Use, RV 1 PCs 16” Long 1/2”FIP Stainless Steel Water Hoses

 in stock
1 new from $112.11
5 used from $82.43
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Features

  • 【SAFE DURABLE & LONGEVITY】304 Made of stainless steel and never rust,Anti-leakage plug,Multiple safety protection functions protect you from the risk of scald, leakage or other injury.Premium plastic shell is corrosion resistant,This mini hot water heater is ideal for kitchen, bar, school, hospital, community and RV.
  • 【SMART INVERTER FOR ENERGY SAVING】Digital 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. 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.
  • 【EASY TO USE】storage 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.
  • 【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,8-15 minutes to heat to your desired temperature).
  • 【COMPACT DESIGN】Can 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. 1.5 kW, 110-120 volts. One-year warranty and 24H customer service support, feel free to contact us.

110V-120V Electric Mini-Tank Hot Water Heater Storage,1.5KW Kitchen Household Compact Size Point-of-Use,Rv Hot Water Output of 2.5 Gallon, 1 PCs 16” Long 1/2”FIP Stainless Steel Water Hoses

 in stock
1 new from $109.99
3 used from $98.98
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Features

  • 【SAFE DURABLE & LONGEVITY】Made of stainless steel and never rust,Anti-leakage plug,Multiple safety protection functions protect you from the risk of scald, leakage or other injury.Premium plastic shell is corrosion resistant,This mini hot water heater is ideal for kitchen, bar, school, hospital, community and RV.
  • 【SMART INVERTER FOR ENERGY SAVING】Automatic heat preservation and storage of hot water, 2.5 gallon point-of-use mini-tank fits under your sink to provide hot water right where you need it. Thermal efficiency is 98%,Maximum temperature167℉,The built-in smart chip heats up to the temperature you set, and automatically Insulation when heated to the specified temperature.
  • 【EASY TO USE】storage 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.
  • 【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,8-15 minutes to heat to your desired temperature).
  • 【COMPACT DESIGN】Can be shelf, wall or floor mounted (Water inlet and outlet upward); Dimensions: 13.0''L x11.4''W x10.6''H; 9.5lbs; 1/2″NPT NPT. 1.5 kW, 110-220 volts. One-year warranty and 24H customer service support, feel free to contact us.

Tankless Water Heater - 3000W Mini Electric Instant Water Heater Under Sink with LCD Display for Home Kitchen Washing US Plug 110V, 7.87 x 4.13inch Wall Mounted (Gold) 30-55℃

 in stock
3 new from $69.99
2 used from $58.88
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Features

  • ☄ 【Eastbuy TANKLESS WATER HEATER 】 NOTICE Before PURCHASE: The water heater need a larger than 32 amps circuit breaker; the outlet water temperature won't very hot because the water heater just 3KW, so it can't be used to bath or wash hair, it can be use to wash hand or use in kitchen. If it doesn't meet your require, PLEASE DON'T BUY.
  • ☄ SMART SELF ADJUSTMENT:The hot water heater adjusts power input based on flowing rate and temp setting in real time. thus you still get ideal temperature instead of scalding hot water, which means comfortable experience, simple operation. It is recommended that the product be washed in winter for hand washing, dish washing, face washing and other scenes
  • ☄ 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. Safe heater, electricity saving, water saving, no pollution, no exhaust gas.The temperature is adjusted by the water flow regulating valve or the tap switch.
  • ☄ ECO & ELECTRIC & WATER SAVING: Safe heater, save up to 55% on your electric cost, water saving, no pollution, no exhaust gas.The heating of the product is adjusted by the water flow regulating valve or the faucet switch. Large water flow means low temperature, and small water flow means high temperature. It is recommended that the product be washed in winter for hand washing, dish washing, face washing and other scenes.
  • ☄ USE EXPERIENCE: 30-55℃ (Considering the use environment in severe cold areas may not reach the maximum temperature of 55℃) .When the inlet water temperature is very low, the outgoing water is not ice, but no heat is felt; when the inlet water temperature is high, the outgoing water will be hotter.

Tankless Electric Hot Water Heater 220/240V under sink Kitchen Household, Small Compact Instant No Standby Losses,Hot Water Output of 1.8 GPM,2 PCs 16” Long 1/2”FIP Copper Head Hose(White 7KW) (White)

 in stock
1 new from $95.98
1 used from $82.91
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Features

  • 【ENDLESS WATER HEATER】3 seconds to get hot water without preheating. Instant consistent and endless hot water of the maximum temperature reach to 131 ℉. Tankless electric water heater on demand suits for sinks and bathroom( meet bathing needs except extremely cold winter such as 28℉).
  • 【SMART INVERTER FOR ENERGY SAVING】The hot water heater built-in smart chip to scientifically calculate the minimum required power based on the water flow and temperature thus costing less energy and money. Save up to 70%. The water flow rate and temp is stable under chip's control.
  • 【SAFE DURABLE & LONGEVITY】Multiple safety protection functions protect you from the risk of scald, leakage or other injury. Premium tempered glass shell is corrosion resistant, high-grade and easy to wipe. This mini hot water heater is ideal for kitchen, bathroom, bar, school, hospital, community and hair salon.
  • 【EASY TO USE】 The electric tankless water heater comes with digital display & touch control panel for visual setting. Shower head, water valve, pipes and other accessories are complete for quick installation without additional expenses or preparing time of accessories.
  • 【COMPACT & POINT-OF-USE】It is surprised that this electric hot water heater can be installed 360°(no matter mounted horizontally, vertically & obliquely). Dimensions: 7.4″L x2.5″W x11.0″H; 5.13lbs; 1/2″NPT NPT. 7.0 kW, 220-240 volts. One-year warranty and 24H customer service support, feel free to contact us.

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

 in stock
14 new from $433.00
3 used from $341.50
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Features

  • Savings of up to 50% on water heating costs. Dimensions :17H x 17W x 3.625D inches ;Pipes fittings :3/4 inch NPT
  • Digital temperature control in 1-degree increments allows control of hot water; Activation Flow: 0.3 GPM
  • Copper and stainless components designed for efficiency, durability and easy replacement.
  • Compact size saves valuable storage space, while the stylish and advanced design is pleasing to the eye and Copper and stainless components designed for efficiency, durability and easy replacement.
  • Prior to purchase & installation, please verify that this model is the right size for your hot water needs and electrical requirements. Electrical requirements: 27 kW, 240 volts, (3) 40 required breakers, 112.5 maximum power (AMP), (3) 8 required wire.Amperage Draw:113 A