Search  for anything...
thermomate

thermomate Mini Tank Water Heater Electric, 1.32 Gallons Small Under Sink Water Heater for Point of Use Instant Hot Water 110V 120V, Wall or Floor Mounted, UL Listed ES150

  • Based on 1,005 reviews
Condition: New
Checking for product changes
$169.99 Why this price?

Buy Now, Pay Later

As low as $28.33 / mo
  • – 6-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: 20 left in stock
Fulfilled by Amazon
Arrives Tuesday, Jun 17
Order within 16 hours and 25 minutes
Available payment plans shown during checkout

Recently Viewed

Style: 1.32 Gallons


Features

  • Glass lined Tank
  • [No Wait for Hot Water] - Point of use 1.3 gallons mini tank water heater provides instant hot water where you need it with fast recovery, reducing standby loss. Thermal efficiency up to 99%
  • [Small Compact for Sink] - The hot water heater is compact designed for your sink with dimensions 11.42" x 11.42" x 9.65", can be wall or floor mounted under sink / counter, plug into a standard 120V outlet. Nominal current 12amps
  • [Adjustable Temperature] - Thermostat with 3 temperature level settings, range from 77F to 140F with high temperature limit protection, also a freeze mode to prevent tank from freezing
  • [Premium Quality & Durable] - Glass-lined tank for great insulation, Incoloy 800 stainless steel heating element, T&P relief valve made in USA, UL listed, ensuring a long service life

Brand: thermomate


Product Dimensions: 11.42"W x 14.96"H


Special Feature: Easy to Install


Color: Black


Wattage: 1440.00


Brand: ‎thermomate


Product Dimensions: ‎11.42"W x 14.96"H


Special Feature: ‎Easy to Install


Color: ‎Black


Wattage: ‎1440.00


Voltage: ‎120 Volts


Maximum Temperature: ‎1.4E+2 Degrees Fahrenheit


Efficiency: ‎99%


Style: ‎1.32 Gallons


Maximum Operating Pressure: ‎150 Pound per Square Inch


Maximum Pressure: ‎150 Pound per Square Inch


Mounting Type: ‎Protruding


Is Electric: ‎Yes


Manufacturer: ‎thermomate


UPC: ‎630792538919


Part Number: ‎ES150


Item Weight: ‎11 pounds


Item model number: ‎ES


Size: ‎1.3 Gallon


Amperage Capacity: ‎12 Amps


Maximum Power: ‎1440 Watts


Installation Method: ‎Wall-Mounted or Floor


Temperature Range: ‎50-149 Degrees Fahrenheit


Plug Format: ‎B - US style with ground plug.


Special Features: ‎Easy to Install


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


Batteries Required?: ‎No


Date First Available: August 1, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 17

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Works great!
Style: 2.5 Gallons
Replaced leaking round WH under cabinet, this one doubled Usable Space, and provides same amount of hot water. Client Happy!
Reviewed in the United States on February 16, 2025 by Gerry guy
    • Great for bathroom
Style: 1.32 Gallons
Initially purchased this unit to go under the kitchen sink, which is a really long run from the water heater. The install was very easy. We found, however, that we only got about 50-60 seconds of hot water before the old began mixing in, so I upgraded to a 4 gallon unit. I then moved this smaller one to the bathroom sink, and it is perfect there for our needs. ... show more
Reviewed in the United States on February 14, 2025 by Thomas Steed
    • 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. ... show more
Reviewed in the United States on December 7, 2024 by Debster
    • Great unit, no installation hoses included
Style: 2.5 Gallons
Water heater is nice and works perfectly. Installation varies based on existing plumbing but they should really tell you in description that you will need to go buy hoses & adaptors. Nothing is included and there are no direction regarding installation.
Reviewed in the United States on February 16, 2025 by STEVEN B ZABRISKIE
    • No more cold wash water at sink
Style: 1.32 Gallons
Purchased this when my instahot died and could not swallow the price for a new unit. This tank installed very easily with standard fittings and came with its own pressure value. I have it under the kitchen sink where is small size is important (1.5 gallon version). It is feed from my hot water heater that usually takes a minute to get hot water to kitchen sink. Now, have hot water in seconds and, while it cools a bit, it is hot enough to do the dishes while the feed line still has cold water. I will be installing these in bathroom cabinets as soon as can do the electrical work needed. ... show more
Reviewed in the United States on December 15, 2024 by melo drifter
    • Worked great for four years, but failed today and flooded my basement
Style: 6.5 Gallons
The headline says it all! You never know how durable a water tank is until it fails, but I would expect one to last at least ten years. The fact that this one sprung a leak after only four years suggests that they made the tank out of cheaper/thinner metal or perhaps skimped out on the cathode so corrosion happened sooner. Wanted to share in case it saves someone else the same trouble. ... show more
Reviewed in the United States on January 17, 2025 by Casual Consumer
    • Love the instant hot!
Style: 1.32 Gallons
I have a plumbing issue in my house where it takes almost 2 minutes of running hot water at the kitchen sink to get hot water. All other faucets are not as problematic. This is not difficult to install with basic plumbing skills and gives instant hot water where you need it. I connected the tank in to the hot supply under the sink. Then ran the tank out to the faucet. When the tank exhausts itself, it fills with the incoming water from the house hot water tank. My only regret is not ordering the larger tank. Otherwise this is a fantastic update to our sink! ... show more
Reviewed in the United States on December 26, 2024 by B. Derschau
    • Just enough hot water, no wiring required
Style: 2.5 Gallons
My second purchase. Using one in my outdoor kitchen and one in my shop utility sink. Great for cleaning cooking utensils, washing cooking surfaces, and cleaning hands. Degrease with hot water is so much more effective.
Reviewed in the United States on February 15, 2025 by Scott Frakes

Can't find a product?

Find it on Amazon first, then paste the link below.