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thermomate

thermomate Mini Tank Electric Water Heater ES400 4 Gallons Point of Use Water Heater for Instant Hot Water Under Kitchen Sink 120V 1440W

    • Based on 471 reviews
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Availability: Only 2 left in stock, order soon!
Fulfilled by thermoflow
Arrives Jun 1 – Jun 7
Order within 16 hours and 58 minutes
Available payment plans shown during checkout

Size: 4 Gallon


Features

  • No More Wait for Hot Water - Point of use 4 gallons mini tank water heater provides instant hot water where you need it with fast recovery, reducing standby loss. Thermal efficiency up to 99%
  • Easy Installations - Dimensions 14.5"W x 14.5"H x 12.9"D compact design, can be wall or floor mounted under sink / counter, plug into a standard 120V outlet, no special wiring required. Nominal current 12amps
  • Adjustable Temperature - Thermostat with 3 temperature level settings, range from 50F to 149F with high temperature limit protection, also a freeze mode to prevent tank from freezing
  • UL Certified & Durable - Enamel Coating Glass-lined tank for great insulation and preventing leaking, CASH USA made Temperature & Pressure Relief valve included, UL certified ensuring a safe long service life
  • Specifications and Warranty - Dimensions: 14.5"H x 14.5"W x 12.9"D; Weight:19.8lbs; Water connections: 1/2" NPT, Electrical requirements: 1.44 kW at 120 volts, plug-in connection with 2 feet power cord; Max water pressure:150PSI; Nominal current: 12A. 3-year Limited Warranty for the tank, 1-year warranty for parts and 24hours customer service

Brand: ‎thermomate


Capacity: ‎4 Gallons


Power Source: ‎Corded Electric


Item Dimensions LxWxH: ‎14.5 x 12.9 x 18.04 inches


Special Feature: ‎Easy to Install


Wattage: ‎1440.00


Voltage: ‎120 Volts


Style: ‎Adjustable


Maximum Operating Pressure: ‎150 Pound per Square Inch


Maximum Pressure: ‎150 Pound per Square Inch


Mounting Type: ‎Protruding


Manufacturer: ‎thermomate


Part Number: ‎ES400


Item Weight: ‎22.6 pounds


Product Dimensions: ‎14.5 x 12.9 x 18.04 inches


Item model number: ‎ES400


Size: ‎4 Gallon


Amperage Capacity: ‎12 Amps


Maximum Power: ‎1440 Watts


Installation Method: ‎Wall-Mounted or Floor


Temperature Range: ‎50-149 Degrees Fahrenheit


Special Features: ‎Easy to Install


Included Components: ‎T&P Relief Valve, Mounting Kits and User Manual


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: August 5, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jun 1 – Jun 7

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • I wish I had known about this sooner!
Size: 2.5 Gallon
Simple installation (if you clean out under the sink first). Works grrrr8. I luvvit and am considering ordering another (thinking about cleaning out under the kitchen sink). Hint... Turn the temperature control wide open. It works best at the highest setting. Now a month or so later I have gotten the 1.3 gallon unit for under my kitchen sink. I bought the 1,3 gallon unit since the 2.5 was too deep. The 1.3 gallon unit is good for warn water to wash my hands but it runs out of hot water after about 20 seconds becoming warm till the hot water from my master water heater gets through it. ... show more
Reviewed in the United States on January 13, 2023 by Uncle Dave
    • Super fast hot water.
Size: 1.3 Gallon
Had plumber install because of different fittings needed for my type of kitchen plumbing. Probably could have done it myself but had plumber do anyway. Delivers instant hot water which you can adjust the temperature with simple twist to dial. The tank hold over a gallon so enough on demand hot water for most quick needs. It will run out and then you must wait for the normal hot water flow. Overall very satisfied with this small on demand hot water tank for the kitchen faucet. Couple of things - you need room under your sink to mount so do the measurements and you also need outlet under sink to plug it in. My space was sufficient to mount and already had extra electrical outlet to plug it in. ... show more
Reviewed in the United States on January 6, 2023 by SuperDave
    • Ez connection!
Size: 2.5 Gallon
We installed the mini tank under our kitchen sink. Hook up was very easy. Our regular water heater is located in the back of the house and even in the summer it would take forever to get hot water. Loving it?
Reviewed in the United States on January 21, 2023 by S. K. Putnam
    • A
Size: 1.3 Gallon
A
Reviewed in the United States on January 31, 2023 by Kelly OConnor
    • Some what satisfied
Size: 4 Gallon
Difficult and expensive to install
Reviewed in the United States on December 26, 2022 by Amazon Customer
    • Shipped with no power cord.
Size: 6.5 Gallon
My water heater shipped without a power cord. I had to add one. The heater works as expected.
Reviewed in the United States on December 10, 2022 by PhatPete
    • Easy install but don’t cut corners!
Size: 6.5 Gallon
Review Image by Paul Wuensch Paul Wuensch
Easy to install, works as expected but it’s heavy when full. Lag bolts supplied are barely enough to hold it. Mine fell and broke the plastic shell four days in. My fault for sure, (substituted different bolts) don’t underestimate the weight.
Reviewed in the United States on November 23, 2022 by Paul Wuensch Paul Wuensch
    • thermomate Mini Tank Electric Water Heater ES250 2.5 Gallons
Size: 2.5 Gallon
Great For Small Spaces, where a hand washing sink is needed.
Reviewed in the United States on December 18, 2022 by Amazon Customer

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