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thermomate

ThermoMate Mini Tank Water Heater Electric, 6.5 Gallons Small Under Sink Water Heater for Point of Use Instant Hot Water 110V 120V, Wall or Floor Mounted, UL Listed ES700

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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, Jun 3
Order within 11 hours and 43 minutes
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Style: 6.5 Gallons


Features

  • No More Wait for Hot Water - Point of use 6.5 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 17.7" x 17.7" x 14.6" compact design, can be wall or floor mounted under sink / counter, plug into 120V outlet, 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
  • Premium Quality & Durable - Glass-lined tank for great insulation, temperature and pressure relief valve included, UL Listed ensuring a long service life
  • Specifications and Warranty - Dimensions: 17.7"H x 17.7"W x 14.6"D; Weight:26.5lbs; 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

Features

  • No More Wait for Hot Water - Point of use 6.5 gallons mini tank water heater provides instant hot water where you need it with fast recovery, reducing standby loss. Thermal efficiency up to 99%. Contact us first for any product issues
  • Easy Installations - Dimensions 17.7" x 17.7" x 14.6" compact design, can be wall or floor mounted under sink / counter, upgraded plugin to use. 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
  • Premium Quality & Durable - Glass-lined tank for great insulation, temperature and pressure relief valve included, UL Listed ensuring a long service life
  • Specifications and Warranty - Dimensions: 17.7"H x 17.7"W x 14.6"D; Weight: 26.5 lbs; Water connections: 1/2" NPT, Electrical requirements: 1.44 kW at 120 volts; 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: 6.5 Gallons


Power Source: Corded Electric


Item Dimensions LxWxH: 17.7 x 14.6 x 21.24 inches


Special Feature: Easy to Install


Color: white,blue


Wattage: 1440.00


Voltage: 120 Volts


Style: Adjustable


Maximum Operating Pressure: 150 Pound per Square Inch


Brand: ‎thermomate


Capacity: ‎6.5 Gallons


Power Source: ‎Corded Electric


Item Dimensions LxWxH: ‎17.7 x 14.6 x 21.24 inches


Special Feature: ‎Easy to Install


Color: ‎white,blue


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: ‎Hard Wired


Manufacturer: ‎thermomate


Part Number: ‎ES700


Item Weight: ‎30.9 pounds


Product Dimensions: ‎17.7 x 14.6 x 21.24 inches


Item model number: ‎ES700


Size: ‎6.5 Gallon


Amperage Capacity: ‎12 Amps


Maximum Power: ‎1440 Watts


Installation Method: ‎Wall-Mounted or Floor


Item Package Quantity: ‎1


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 1, 2020


Brand: thermomate


Capacity: 6.5 Gallons


Power Source: Electric


Product Dimensions: 17.7"W x 21.24"H


Special Feature: Corrosion resistant tank, Plugin to 120V outlet to use


Power Source: Electric


Special Features: Corrosion resistant tank, Plugin to 120V outlet to use


Wattage: 1440.00


Voltage: 120 Volts


Flow Rate: 6.5 Gallons Per Minute


Maximum Temperature: 149 Degrees Fahrenheit


Heat Output: 1440 Watts


Efficiency: 99%


Maximum Pressure: 150 Pound per Square Inch


Mount Type: Plugin to Use


Is Electric: Yes


Capacity: 6.5 Gallons


Item Dimensions W x H: 17.7"W x 21.24"H


Item Weight: 26.5 Pounds


Item Depth: 14.6 inches


Brand Name: thermomate


Model Number: ES


Manufacturer: thermomate


UPC: 630792538940


Manufacture Year: 2023


Manufacturer Part Number: ES700


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


Item Type Name: Kitchen Water Heater


Color: white,blue


Style Name: 6.5 Gallons


Material Type: Gold porcelain enamel


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Jun 3

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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Top Amazon Reviews

    • Instant hot water as advertised
Style: 4 Gallon
So far no issues. Water heats instantly which is great. Install was not difficult.
Reviewed in the United States on February 9, 2026 by Brigid Jz
    • Good price
Style: 1.32 Gallon
Installed under the kitchen sink so we get hot water fast. I like the size and ease of installation, but these units usually only last a few years. Just know you'll need to replace every few years.
Reviewed in the United States on January 16, 2026 by CalGirl
    • So easy to install, a cavewoman DID do it
Style: 6.5 Gallons
I am in a house I just recently bought. The gas company is super unfriendly, their "inspector," is not a nice person and after clearing the house with the gas on a few months ago now says all the gas lines must be replaced? They're not even old. So, yeah, bye bullying GAS Company! I yanked out the gas stove and put it on Craigslist the next day, lovely electric cooktop now installed. We have options, today. Anyway, I researched and researched, and found this portable electric HWH that consumes low amps and is 110v! I have to admit, the box arrived and I was intimidated. I got online and started looking for "all the stuff," I'd need to install it, lines, fittings, even tools. Imagine my delight when I discovered I needed nothing other than what was already there in the house and some teflon tape I already had. Even installing the pressure relief valve (they provided it, thanks so much) was a breeze. Start to stop, it was making water hot less than 30 minutes after I opened the box. I'm using this right now in a shower. I have to spray, suds, rinse, but it SO beats ice cold showers. My plan will be to use this unit eventually in my outdoor bathhouse, but today, it's saving my life by providing me with a hot shower. So, so happy I bought this. Update 5/12/2025 - Still working great, used it this morning! ... show more
Reviewed in the United States on December 7, 2024 by Debster
    • convenient little heater that does the job
Style: 1.32 Gallon
installed this ThermoMate mini tank water heater under the sink, and it’s been really handy. Instead of waiting for hot water to travel from the main heater, it delivers warm water almost instantly, which is great for washing hands and dishes. The unit is compact, fairly quiet, and the installation was pretty straightforward with basic tools. It heats up quickly and keeps the temperature steady once it’s set. I also like that it can sit on the floor or be mounted to the wall, so there’s some flexibility depending on your space. The only downside is that the tank is small (as expected), so if you run the water continuously, it will run out after a short while and needs time to reheat. Not a big deal for point-of-use, but it’s worth knowing. The manual could also be a bit clearer. Overall, this is a solid mini water heater for sinks and small tasks. Not perfect, but it works well and makes everyday use much more convenient. I’d buy it again. ... show more
Reviewed in the United States on December 28, 2025 by Aaron C
    • Good value for the price point.
Style: 1.32 Gallon
I selected his heater as a trial for kitchen sink upgrade due to its smaller size and price point. So far it’s doing just what it was intended to do. Nothing like having instant hot water 👍 How well it holds up only time will tell but I would not hesitate to recommend it at this point.
Reviewed in the United States on February 26, 2026 by Amazon Customer
    • Works great
Style: 1.32 Gallon
It’s working like a charm. We had a plumber install it; I’d recommend that.
Reviewed in the United States on March 13, 2026 by Byron S.
    • Leaked and ruined my cabinet within 30 days of install
Style: 1.32 Gallon
Installed in Jan, noticed by end of Feb was leaking from the relief valve. Ruined my bottom cabinet shelf, now I have the expense and trouble of replacing the bottom of the sink cabinet. I will put a catch mat or pan under these if I ever risk purchasing again. Installed easily, and is a great size for under bathroom sinks. The water temp range is large, sometimes the water will be lukewarm, sometimes hot. This is at the 3/4 setting. ... show more
Reviewed in the United States on March 8, 2026 by Steve Rigg
    • Instant hot water
Style: 2.5 Gallon
2 1/2 gallon instant hot water. Sits under kitchen sink. Every time i get instant hot water, I immediately love it.
Reviewed in the United States on April 4, 2026 by Shawn R

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